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State of Missouri

Employer’s 

Tax Guide

Starting a new business? The Missouri Department of Revenue 
and the Department of Labor and Industrial Relations, 
      Division of Employment Security, want to make 
      starting your business as easy as possible. 
Go to mytax.mo.gov/rptp/portal/business/register-new-business  
      to fill out the online registration.

      Published by
Missouri Department of Revenue
      June 2023

      Website: dor.mo.gov/

                  Form-4282 (Revised 09-2023)



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                                                                           Why should you use an alternative filing method? By utilizing e-check, 
       General Information                                                 credit card, or TXP Bank Project for filing your withholding tax return, 
Please refer to specific filing re quire ments and filing due dates each   you eliminate the possibility of postal delays and possible late filing or 
year. Due dates can be found on page 7 of this guide or you may            pay ment fees and the cost and time to generate, sign, and mail returns 
visit the Department’s website at dor.mo.gov/tax-calendar/.                and checks. The Department saves processing and data entry costs 
                                                                           associated with paper filings.
To ensure your tax records are protected and confidential, the Missouri    To learn more about any of these alternative filing methods, please 
Department of Revenue will not release tax information to anyone who       write the Missouri Department of Revenue, P.O. Box 543, Jeffer son 
is not listed in our records as an owner, partner, member, or officer      City, Missouri 65105-0543, e-mail     elecfile@dor.mo.gov, or call 
for your business. If your partners, members, or officers change, you      (573) 751-8150. To obtain electronic filing information, access dor.
must update your registration with the Department by completing            mo.gov/business/electronic.php.  Persons  with  speech  or  hear  ing 
a Registration Change Request (Form 126), before tax information           im pair ments may use TTY (800) 735-2966 or fax (573) 522-1762.
can be released to those new partners, members, or officers. Visit 
dor.mo.gov/forms/126.pdf to obtain Form 126. If you would like the         Filing a Return with No Tax to Report or Filing a 
Department to release tax information to an accountant, tax preparer,      Quarter-Monthly Reconciliation Online
or  another  individual  who  is  not  listed  on  your  account,  please  If you have no employer withholding tax to report, you may visit  
complete a Power of Attorney (Form 2827), which can be found at            mytax.mo.gov/rptp/portal/home/business/file-withholding-tax-return 
dor.mo.gov/forms/2827.pdf.                                                 to file a zero Form MO-941 electronically. You must submit returns, 
                                                                           even if no tax was withheld. You can also file your quarter-monthly 
                                                                           reconciliation online at the same website.
             Filing and Payment Options
The Department, is no  longer printing and mailing  pre-printed                              Withholding Formula
voucher booklets.  Employers may file and pay Employer’s Return of         •   Updated withholding tax information is available starting on page 
Income Taxes Withheld (Form MO-941), online using a Credit Card            12 of this guide
or E-Check (Electronic Bank Draft), through their MyTax Missouri 
Portal  account or by paper  using  Form MO-941  located on  the           •   The information is presented in an “easy to follow” worksheet to 
Department’s website.                                                      calculate withholding tax.
                                                                           •   Visit mytax.mo.gov/rptp/portal/home/withholding-calculator  to  try 
Note: You must have a valid Missouri Tax I.D. and PIN Number to            our online withholding tax calculator.
file and pay using this system, and must know the Filing Period for 
which you are filing. See description of payment methods and fees                    Federal Income Tax Deduction
below.                                                                     In the 2018 legislative session, House Bill 2540 was passed and  
  Electronic Bank Draft (E-Check)  By entering your bank routing           amended Section 143.171, RSMo, related to the federal tax 
number, checking account number, and your next check number,               deduction. Effective for tax year 2020, the federal income tax  
you can pay online. There will be a minimal handling fee per filing        deduction taxpayers may claim is prorated based on the taxpayer’s 
period or transaction to use this service.                                 Missouri  adjusted gross income. In an attempt to ease implementation  
                                                                           of the new withholding formula, the Department of Revenue chose 
 Credit Card  This filing and payment system accepts MasterCard,           to remove the federal tax deduction from the withholding tax calcu-
Dis cover, Visa, and American Express. A convenience fee will be           lation. This change may result in a small increase to the amount 
charged for credit or debit card transactions.                             withheld from employee’s paychecks. Any withholding in excess of 
Note:  The handling and convenience fees included in these                 the tax owed will be refunded after the taxpayer files their individual 
transactions  are  being  paid  to  the  third  party  vendor,  NCR,  not  income tax return.
to the Department. By accessing this filing and payment system,            Missouri Adjusted Gross       Allowed Federal Income Tax 
the user will be leaving Missouri’s website and connecting to the                    Income is                   Deduction Percentage is
website of NCR, which is a secure and confidential website.
                                                                           $25,000 or less                             35%
                 To file and pay online, please visit:                     From $25,001 to $50,000                     25%
  mytax.mo.gov/rptp/portal/home/fileandpaybusinesstaxesonline              From $50,001 to $100,000                    15%
TXP Bank Project (TXP)  TXP offers another option for filing your tax      From $100,001 to $125,000                   5%
payments. It allows you to provide payment and report information to       $125,001 or more                            0%
your bank. The bank, in turn, converts the information into a CCD+         Not to exceed $5,000 for single taxpayers or $10,000 for combined returns.
format that allows it to transfer your return information along with 
your authorized ACH credit to the Department. The option is                                    Paperless Reporting
available to any Missouri taxpayer filing a Form MO-941.                   Section 143.591, RSMo requires employers with 250 or more 
If you are remitting Quarter-Monthly withholding payments through          employees to submit the Transmittal of Tax Statements (Form MO 
ACH Credit, be sure your bank uses code 0115P when submitting              W-3) and accompanying Form W-2’s electronically 
the payment.                                                               •   The file must follow the Social Security Administration’s EFW2 
If you are a Quarter-Monthly payer, you must file your return by             format along with Missouri modifications as outlined on page 9. 
another source to reconcile your filings. This can be done by filing       •   The file must be submitted by January 31, 2023. 
a return online at mytax.mo.gov/rptp/portal/home/fileandpaybusi-           •   A secure upload method will be provided by the  Department.
nesstaxesonline. Select “File My 941 Quarter-Monthly Payments 
Reconciliation”.                                                           •   Visit dor.mo.gov/business/electronic.php for more information. 
                                                                              
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 Withholding Requirements for Nonresident                                            Missouri Income Tax 
 Individual Partners and Shareholders
                                                                           Withholding Instructions
Partnerships and S corporations may be required to withhold 
                                                                         1.  Employers
Missouri income tax on nonresident individual partners and  
                                                                         An employer is any person, firm, corporation, association, fiduciary 
shareholders. If the partnership pays or credits amounts to 
                                                                         of any kind, or other type of organization for whom an individual 
nonresident individual partners as distributive shares of the 
partnership income for a taxable year of the partnership, or if the      performs services as an employee, unless the person or organization 
S corporation pays or credits amounts to nonresident individual          for whom the individual performs service does not have control of the 
shareholders as dividends or as their share of the S corporation’s       payment of compensation for the service (Section 143.191, RSMo). 
undistributed taxable income for the taxable year, withholding may       The term employer means the person, including all government agen-
be required. Withholding is not required if:                             cies, who controls the payment of the compensation.
 1.  The nonresident partner or shareholder, not otherwise               An employer required to withhold Missouri income tax is personally 
 re quired to file a return, elects to have the Missouri income          liable for the tax. Any amount of tax actually deducted and 
 tax due paid as part of the partnership’s or S corporation’s            withheld by an employer is a special fund in trust for the Director 
 composite return;                                                       of Revenue (Section 143.241, RSMo). An employee does not have 
 2.  The nonresident partner or shareholder, not otherwise               a right of action against the employer with respect to any money 
 required  to  file  a  return,  had  Missouri  assignable  federal      deducted and withheld from his or her wages if it is paid to the 
 adjusted gross income from the partnership or S corporation             Director  of Revenue in  good faith  compliance with the  Missouri 
 of less than $1,200;                                                    income tax law.
 3.  The partnership or S corporation is liquidated or terminated;       Transient  Employers  — Section 285.230,  RSMo,  requires  transient 
 4.  Income was generated by a transaction related to termination        employers who temporarily transact any business in Missouri to 
 or liquidation; or                                                      file a financial assurance instrument with the Department to secure 
 5.  No cash or property was distributed in the current or prior         payment of withholding taxes.
 taxable year.                                                           Transient Employer Defined — A transient employer is an employer 
The required withholding must be remitted to the De part ment annually.  as defined in Sections 143.191, 285.230, and 288.032, RSMo, who: 
                                                                         1) makes payment of wages taxable under the Missouri Income Tax 
          Rounding on Missouri Returns                                   Law, the Workers’ Compensation Law, and the Missouri Employment 
You must round the amounts that you withhold from your em ployees        Security Law; 2) is not domiciled in Missouri; and 3) tem porarily 
to the nearest  whole  dollar. For  1 cent through  49 cents, round      transacts any business within the state. If the transaction of business is 
down to the previous whole dollar amount (round $32.49 down to           not reasonably expected to continue for 24 consecutive months, the 
$32.00). For 50 cents through 99 cents, round up to the next whole       employer must reg is ter as a transient employer.
dollar amount (round $32.50 up to $33.00). For your convenience,         Section 143.183, RSMo, requires a venue (venue is the entity 
the zeros have already been placed in the cent columns on the            that pays the entertainer) to withhold 2 percent of the gross 
returns.                                                                 compensation paid to nonresident entertainers who perform in 
To Request Forms:                                                        Missouri if the gross compensation per event is in excess of $300. 
Missouri Department of Revenue                                           If the venue withholds 2 percent of the gross compensation paid, 
Taxation Division                                                        the nonresident entertainer is no longer required to comply with 
P.O. Box 3022                                                            the transient employer laws previously defined. The venue must file 
Jefferson City, Missouri 65105-3022                                      a Form MO-2ENT for each individual entertainer who performs at 
Website:  dor.mo.gov/                                                    the venue’s location. Form MO-1ENT must be filed on a quarterly 
Information Concerning Registration:                                     basis with the Department which provides a total reconciliation of 
Missouri Department of Revenue                                           payments for individual entertainers during the quarter. 
Taxation Division 
                                                                         If the venue does not withhold 2 percent of the gross compensation 
P.O. Box 3300 
                                                                         paid to the nonresident entertainer who performed in the state, the 
Jefferson City, Missouri 65105-3300 
                                                                         professional entertainer is responsible for registering as a transient 
Telephone: (573) 751-5860 
E-mail: businesstaxregister@dor.mo.gov                                   employer. Please use the following formula to compute Missouri 
                                                                         withholding tax:
General Information Concerning Withholding Tax: 
Missouri Department of Revenue                                           Total Performance Days in Missouri
Taxation Division                                                        Performance Days in MO/Total Performance Days for the Year  
P.O. Box 3375                                                            =  Missouri Income Percentage
Jefferson City, Missouri 65105-3375                                      Missouri Income Percentage x  *Total Income = Missouri Income
Telephone: (573) 751-3505 
                                                                         Missouri Income x 4.95%  =  Missouri Withholding Tax
E-mail: withholding@dor.mo.gov
                                                                         *Total income includes regular professional entertainer salaries, wages, 
                                                                         guaranteed payments, deferred payments, severance pay, and bonuses 
                                                                         paid or any other compensation paid to the nonresident professional 
                                                                         entertainer or business entity.
                                                                         For more information concerning transient employers, contact the 
                                                                         Department by e-mail at businesstaxregister@dor.mo.gov or write  the 
                                                                         Taxation Division, P.O. Box 357, Jefferson City, MO 65105-0357.
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Section  143.091, RSMo, states that any term used in                        The home office must, in all cases, apply to the Department using 
Sec tions 143.011 to 143.996, RSMo, shall have the same meaning             a Form 2643 for a Missouri Tax I.D. Number so the deduction for 
as when used in a comparable context in the laws of the United              compensation can be allowed.
States relating to the federal income taxes, unless a different             3.  Who are Employees?
meaning is clearly required by the provisions of Sections 143.011           The term “employee” for Missouri withholding purposes has the 
to 143.996, RSMo. Any reference in Sections 143.011 to 143.996, 
                                                                            same meaning as it has for federal withholding (see  Circular E, 
RSMo, to the laws of the United States shall mean the provisions 
                                                                            Employer’s Tax Guide, published by the Internal Revenue Service). 
of the laws of the United States relating to federal income taxes, as 
                                                                            This definition is the same for Missouri residents and nonresidents.
the same may be or become effective, at any time or from time to 
time, for the taxable year.                                                 4.  What are Taxable Wages?
2.  Employer Registration and I.D. Number                                   The term “wages” for Missouri income tax withholding purposes has 
A. Employer to Register for Withholding                                     the same meaning as it has for federal withholding (see Circular E, 
Every employer paying wages to an employee working in Missouri must         Employer’s Tax Guide, published by the Internal Revenue Service). 
register with the Department. Employers may register electronically at      Wages include all pay given to an employee for services performed. 
mytax.mo.gov/rptp/portal/business/register-new-business       or by         The pay may be in cash or in other forms. Wages include salaries, 
completing a paper Missouri Tax Registration Application (Form              vacation allowances, bonuses, and commissions, regardless of how 
2643). A permanent registration number will be assigned. This               measured or paid.
number is not transferable and should be referred to in all reports and     A.  Nonresident Employees Subject to Withholding
correspondence concerning Missouri income tax withholding. If you           If a nonresident employee performs all services within Missouri, tax 
have filed the registration application and have a report and payment       shall be withheld from all wages paid to him or her as in the case of 
due before you receive your registration number, write “Applied For” 
                                                                            a resident. If services are performed partly within and partly without 
in the “Missouri Tax I.D. Number” box, list the name of the business 
                                                                            the state, only wages paid for services performed within Missouri are 
exactly as it  is on the  registration application, and  file  the  report 
                                                                            subject to Missouri income tax withholding, pro vided the employee 
timely to take advantage of the compensation deduction and to avoid 
                                                                            files with the employer a Certificate of Nonresidence or Allocation 
interest and additions to tax charges. A new application is required 
and a new Missouri Tax I.D. Number will be assigned when any                of  Withholding  Tax  (Form  MO  W-4A).  The  employee  may  deter-
change in ownership or ownership type occurs. An employer who               mine the portion of wages allocable to Missouri on the basis of the 
receives a new Missouri Tax I.D. Number as a result of a change in          preceding year’s experience.
ownership type, must file a Final Report (Form 5633), Registration or       If only a portion of an employee’s wages is subject to Missouri 
Exemption Change Request (Form 126) to close the former account.            income tax withholding, then the amount of Missouri tax required 
Failure to close the former account will cause Non-Filer Notices to         to be withheld is  calculated using a percentage  of the amount 
be issued.                                                                  listed in the withholding tables. The calculation begins by 
Note: If your business is only open for several months out of the year,     determining the amount that would be withheld if all the wages 
you may register as a seasonal employer. As a seasonal employer,you         were subject to Missouri withholding. This amount is then 
will only be required to file a Form MO-941 for the periods that you        multiplied by a per centage that is determined by dividing the wages 
indicated you will have employees on Form 2643. (You may be                 subject to Missouri withholding by the total federal wages.
considered a transient employer. Please refer to paragraph 1, “Tran-        Example: A nonresident earns $20,000 in wages, $12,000 from 
sient Employer Defined”.)                                                   Missouri sources. Missouri withholding would be 60 percent 
B. Change in Organization or Ownership                                      ($12,000 / $20,000 equals 60 percent) of the withholding required 
A new Missouri Tax I.D. Number is required for most organizational          on $20,000. Therefore, if $100 per month should be withheld for an 
or ownership changes. Contact the Department if any change in               individual earning $20,000, then for this nonresident, $60 should be 
organization or ownership occurs. A new Missouri Tax I.D. Number            withheld each month ($100 x 60 percent = $60).
can be obtained by registering online at mytax.mo.gov/rptp/portal/          B.  Resident of Missouri Employed in Another State
business/register-new-business  or by completing a Form 2643. You           A Missouri employer must withhold Missouri tax if its Missouri 
may e-mail businesstaxregister@dor.mo.gov or you may call (573)             resident employee performs services in a state with an income tax 
751-5860 for more information about registration re quire ments and         rate that is lower than Missouri’s. The employer will withhold and 
how they apply to your specific situation.                                  remit to Missouri  the difference between the states’ withholding 
C.   Employer With More Than One Payroll Unit —                             requirements, unless the employee has completed Form MO W-4C, 
Complex Employer                                                            Withholding  Affidavit  for Missouri  Residents. This form  relieves 
If a consolidated report and remittance of the tax withheld cannot          the employer  of  the responsibility  for filing  and  submitting  the 
be made by the employer because of the complexity of the                    difference to Missouri and places the responsibility on the employee. 
organization, branch offices or divisions may be designated as with-        The MO W-4C is not a required form; if the employee chooses not 
holding agents. The withholding agents may perform the actual               to complete the form, the employer is responsible for reporting the 
withholding and remitting. However, regardless of any internal              appropriate amount of withholding to Missouri. If only a portion of 
arrangements  that  may  be  established  by  the  complex  employer,       an employee’s wages is subject to Missouri withholding tax, then 
the legal responsibility and liability under the law still rests with the   the amount of Missouri tax required to be withheld is calculated 
home office.                                                                using a percentage of the amount listed in the withholding tables.  
If the complex employer has designated withholding agents and the           The calculation begins by determining the amount that would be 
agents wish to claim the compensation deduction, only one agent             withheld if all the wages were subject to Missouri withholding. This 
is entitled to the full compensation deduction and the remaining            amount is then multiplied by a percentage that is determined by 
agents are entitled to 1/2 percent compensation deduction of                dividing the wages subject to Missouri withholding tax by the total 
income taxes withheld if the returns are filed timely.                      federal wages.
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Employee Completes W-4C Example: The employee performs 40               Note: Visit dor.mo.gov/forms/ for forms and more information 
percent of his or her services in Kansas. The remaining 60 percent      about voluntary withholding.
of the employee’s services are performed in Missouri. 
                                                                        7.   Supplemental Wage Payments, Vacation Pay, 
If the total withholding on all earnings is $40 per month, the actual 
                                                                        Tips, and Lump Sum and Periodic Distributions
withholding for Missouri would be $24 ($40 x 60 percent = $24).
                                                                        A.  Supplemental Wage Payments
C.  Missouri Employer with Nonresident Employees                        If supplemental wages are paid (such as bonuses, commissions,  
If a nonresident employee performs all services outside Missouri, his   severance pay, overtime pay, back pay, including retroactive wage 
or her wages are not subject to Missouri withholding. A nonresident     increases, or reimbursements for nondeductible moving expenses) 
employee performing services in more than one state is subject to       in the same payment with regular wages, withhold Missouri income 
withholding as outlined in Section 4A.                                  tax as if the total of the supplemental and regular wages were a 
Note: Missouri does not have a reciprocity agreement with any           single wage payment for the regular payroll period.
other state.                                                            If supplemental wages are paid in a payment separate from regular 
D.  Household Employees                                                 wages, the method of withholding  Missouri income tax depends 
Missouri follows federal guidelines regarding Household Employee(s).    in part on whether you withhold income tax from the employee’s 
Refer to the Internal Revenue Service for additional information at     regular wages.
irs.gov/.                                                               If you withhold Missouri income tax from the employee’s regular 
Employer(s) of Household Employee(s) are not required to                wages, you may choose one of two methods for withholding 
withhold income tax from wages paid to a Household Employee(s);         income tax on the supplemental wages:
however, this is an agreement made between the employer                 1)   Withhold a flat percentage rate of 4.95 percent of the 
and  employee.  If  the  employee  elects  to  have  withholding  tax   supplemental wages.
withheld on their wages, complete the Tax Registration Application      2)   Add the supplemental wages to the regular wages paid to 
(Form 2643) found on our website at dor.mo.gov/business/ in order       the  employee  within  the  same  calendar  year  for  the  payroll 
to report the taxes withheld on the Employer’s Return of Income         period and determine the income tax to be withheld as if the 
Taxes Withheld (Form MO-941).                                           aggregate amount were one payment. Subtract the tax already 
For information concerning Business Tax Registration and the            withheld from the regular wage payment and withhold the 
process to apply, as well as assistance for new businesses to           remaining tax from the supplemental wage payment.
understand  all  the requirements please  visit our website  at         If you have not withheld income tax from the regular wages, 
dor.mo.gov/business/register/. If you have additional questions or      you must use the method covered in Section 7, A.2. Add the  
concerns, please contact the Business Tax Registration by e-mail at     supplemental wages to the regular wages paid within the same 
businesstaxregister@dor.mo.gov or (573) 751-5860.                       calendar year for the payroll period and withhold income tax on the 
                                                                        total amount as if the supplemental wages and regular wages were 
5.  Interstate Transportation Employees
                                                                        one payment for a regular payroll period.
A.  Rail, Motor, and Private Motor Carriers
49 USC Sections 11502 and 14503 limit state taxation on wages           B.  Vacation Pay
of employees of rail, motor, and private motor carriers. Missouri       If an employee receives vacation pay for an absence, the vacation 
withholding is required on rail, motor, and private motor carrier       pay is subject to Missouri income tax withholding as if it were a 
em ployees whose state of residence is Missouri. Employees of rail      regular wage payment made for the payroll periods during the 
carriers and motor carriers who perform regularly assigned duties       vacation. If vacation pay is paid in addition to regular wages for the 
in more than one state are subject to state income tax only in their    vacation period, the vacation pay is treated as a supplemental wage 
state of residency.                                                     payment.
B.  Air and Water Carriers                                              The vacation pay of an employee who is not a resident of Missouri, 
49 USC Section 40116 limits taxation on wages of employees of           but works in Missouri, is subject to Missouri income tax withholding.
air and water carriers to the employees’ state of residence and to      C.  Tips
the state in which the employees earn more than 50 percent of the       Employers must withhold Missouri income tax based upon total tips 
wages paid by the air or water carrier, if different from the state of  reported by the employee. Withhold Missouri income tax on tips 
residence.                                                              using the same options indicated for withholding on supplemental 
                                                                        wage payments in Section 7.A.
6.  Voluntary Withholding
A.   Voluntary Withholding on Retirement, Pension, or Annuity Income
Every Missouri resident receiving retirement, pension, or annuity       D.  Lump Sum and Periodic Distributions
income in this state, may elect to have an amount withheld as a         Missouri follows the federal guidelines for lump sum and periodic 
payment of state income tax provided such income is taxable in this     distributions. On lump sum distributions, withhold at the rate of 4.95 
state. The recipient should determine the amount to be withheld and     percent. If a periodic distribution, follow the formula on page 12, or 
file Withholding Certificate for Pension or Annuity Statements (Form    use the tax tables provided on pages 16-25.
MO W-4P) with the administrator of his or her retirement, pension,      8.  Determining Proper Amount to Withhold
or annuity plan. For further information call (573) 751-3505.           To determine income tax withholding, take the following factors 
B.  Voluntary Withholding for Civil Service Annuitants                  into account:
Civil service annuitants may elect to have state income taxes           1)  Wages paid during the payroll period, including tips and vacation 
withheld  from  their  regular  annuity  payments  by  contacting  the  pay;
Office of Personnel Management at (202) 606-0500.                       2)  Filing status as indicated on the Form MO W-4. 

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3)  If an employee does not complete and turn in the required               Income earned as a member of any active duty component of the 
Form MO W-4, withhold at a single tax rate.                                 Armed Forces of the United States that is eligible for the military 
                                                                            income deduction on Form MO-1040 is exempt from withholding.
A.   Employee Withholding Certificate (Form MO W-4)
Each employee is required  to file a completed Form MO  W-4                 9.  Withholding Tables and Formula
to indicate their filing status on their income tax return. The             A.  Withholding Tables
Form MO W-4 will be used by the employer to determine the                   Use the gross taxable wages to determine the amount of  
amount of Missouri income tax that must be withheld from each               withholding. In determining the amount of tax to be withheld, use 
paycheck. If an employee has more than one employer, he or                  the table for the correct payroll period — daily, weekly, biweekly,  
she may want to withhold an additional amount on Line 2 of                  semimonthly and monthly periods. Tables show wage brackets in 
Form MO W-4 for their principal employer. This is to ensure that            the two left-hand columns. The filing status is shown at the top of 
the total amount withheld will be closer to the actual income               each of the remaining columns. The withholding tables are provided 
tax liability. Failure to have enough withheld from each payroll            at dor.mo.gov/business/withhold/.
period could cause an employee to have too little tax withheld              B.  Percentage Formula Withholding
and subject the employee to underpayment penalties. If an                   The formula on page 12 may be used on electronic data processing 
employee expects to have income other than his or her wages, or             equipment for withholding Missouri income tax. Any variation from 
income from multiple jobs he or she may request additional amounts          this formula must be approved in writing by the Director of Revenue.
be withheld in addition to the standard withholding calculations that 
are based on the standard deduction for the filing status indicated         10.  Return and Payment of Taxes Withheld
on the Form MO W-4. The additional amount should be included                Every employer withholding Missouri income tax from em ploy ees’ 
on Form MO W-4, Line 2. In addition, employees that expect to               wages is required by statute to report and remit the tax to the state of 
receive a refund (as a result of itemized deductions, modifications or      Missouri on Form MO-941. A separate Form MO-941 must be filed 
tax credits) on their tax return, may direct the employer to only with-     for each tax period according to your assigned filing frequency.  A 
hold the amount indicated on Line 3 of the MO W-4. The employer             pre-printed voucher booklet detailing the employer’s name, address, 
will not use the standard calculations for withholding. This will be        employer identification number, filing frequency, and due date is 
an exception situation, most taxpayers will not use this option. If         provided to each active account on a monthly, quarterly, or annual 
the employee does not indicate an amount to withhold or if the              filing frequency. Quarter-monthly filers are required to file and pay 
amount indicated is more than is available for the payroll period,          by an alternative method. (See page 2.) If an employer misplaces, 
the employer will use the standard calculations. Within 20 days of          damages, or fails to receive the necessary reporting forms, replace-
hiring a new employee, please mail a copy of the completed Form             ment forms should be requested, allowing sufficient time to file a 
MO W-4 to the Missouri Department of Revenue, P.O. Box 3340,                timely return. If a blank form is used, the employer’s name, address, 
Jefferson City, MO 65105-3340 or fax a copy to (573) 526-8079.              and Missouri Tax I.D. Num ber must appear as filed on previous 
For additional information regarding new hire reporting, please visit       returns and the period that the remittance is made must be indicated. 
dss.mo.gov/child-support/employers/new-hire-reporting.htm.                  Blank forms can be downloaded from the Department’s website 
B.  Exemption For Nontaxable Individuals                                    at: http://dor.mo.gov/. Failure to receive reporting forms does not 
Exemption from withholding for nontaxable individuals is valid only if      relieve the employer of the responsibility to timely report and remit 
an  employee  submits  to  the  employer  a  completed  Form  MO  W-4       tax withheld. If an em ployer temporarily ceases to pay wages or is 
certifying that the employee has no income tax liability from the previous  engaged in seasonal activities, a return must be filed for each period 
year and expects none for the current year. Employees must file a Form      even if no tax was withheld. Failure to do so will result in the issuance 
MO W-4 annually if they wish to continue the exemption.                     of Non-Filer Notices.
Military Spouses Residency Relief Act Missouri income for services          All returns and remittances should be mailed to: Missouri 
performed by a non-military spouse of a nonresident military service-       Department of Revenue, P.O. Box 999, Jefferson City, MO 
member is exempt from Missouri income tax. To qualify for this              65108-0999.  See address labels  in voucher books.  Returns and 
exemption, the spouse must reside in Missouri solely because the            payments are due on the dates shown in Section 11.
military servicemember is stationed in Missouri under military orders 
                                                                            Note: Your return is considered timely if it is postmarked on or 
and be a permanent resident of another state. 
                                                                            before the required due date. If a metered postmark differs from the 
If a non-military spouse of a nonresident servicemember completes           U.S. Postal Service postmark, the U.S. Postal Service postmark will 
a new Form MO W-4 to claim an exempt status because of the Mili-            be used as evidence of timely filing. When the due date falls on a 
tary Spouses Residency Relief Act, employers must receive verifica-         Saturday, Sunday, or legal holiday, the return and payment will be 
tion from the non-military spouse that they are a resident of another       considered timely if postmarked on the next business day.
state, and are living in Missouri because of military orders before the 
exempt status can be granted. Verification of military status can be        11.  Filing Frequency Requirements
in the form of a Leave and Earnings Statement of the nonresident            Missouri income tax withholding returns must be filed by the due 
military servicemember, Form W-2 issued to the nonresident mili-            date as long as an account is maintained with the Department, even 
tary servicemember, a military identification card, a spousal military      if there was no payroll for the reporting period. Returns must be filed 
identification card, or specific military orders received by the service-   each reporting period, even though there may not have been any tax 
member. Verification of residency can be in the form of a copy of a         withheld. If no tax was withheld, file a zero withholding tax return online at 
prior year’s state income tax return filed in their state of residence,     mytax.mo.gov/rptp/portal/business/file-withholding-tax-return.
a prior year’s property tax receipt from the state of residence, a 
current drivers license, vehicle registration, or voter identification      There are three filing frequencies: monthly, quarterly, and 
card from the state of residency.                                           annually. A newly registered employer is initially assigned a 
Active Duty Members of the Armed Forces of the United States                filing  frequency  on  the basis  of  his  or  her  estimation  of  future 
                                                                            withholdings.  If the assigned filing frequency differs from the 
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filing requirements established by statute, it is the employer’s            Any additional tax due at the end of the month must be 
responsibility  to  notify  the  Department  immediately.  The time  for    paid on or before the due date of the monthly tax return.  
filing is as follows:                                                       Visit dor.mo.gov/business/withhold/ for more information about 
1)  Monthly — Employers required to withhold $500 per month                 alternative filing methods.
      for at least two months during the preceding 12 months shall          Example: An employer has a semi-monthly payroll cycle which falls 
      file on a monthly basis;                                              on January 15 and on January 31. The actual Missouri income tax 
2)  Quarterly — Employers not required to file and pay taxes                withholding for the January 15 payroll is $12,000. The employer 
      withheld on a monthly basis who withhold at least $100 per            must remit at least 90 percent of the $12,000 ($10,800) with the 
      quarter during at least one quarter of the preceding four             2nd quarter-monthly payment due no later than January 19. The 
      quarters shall file on a quarterly basis;                             actual Missouri income tax withholding for the January 31 payroll is 
3)  Annually — Employers required to withhold less than $100                $15,000. The employer must remit at least 90 percent of the $15,000 
      during  each  of  the  preceding four  quarters shall  file  on  an   ($13,500) with the 4th quarter-monthly payment due no later than 
      annual basis.                                                         February 3. Because the employer did not have a payroll during the 
      Regardless of the employers filing frequency, only one                1st or 3rd quarter-monthly periods, a quarter-monthly payment does 
      Form MO-941 return should be filed per tax period. In the event an    not need to be submitted for those two periods.
      additional amount of tax must be paid, please refer to Section 13. 
                                                                            Example: An employer has only one monthly payroll period and it 
                                                                            falls on January 20. The actual Missouri income tax withholding for 
             Employer Withholding Tax Due Dates                             the January 20 payroll is $30,000. The employer must remit at least 
             Annual        Quarterly     Monthly      Quarter-              90 percent of the $30,000 ($27,000) with the 3rd quarter-monthly 
Months
             Reports       Reports       Reports      Monthly Payments      payment due no later than January 25. Because the employer did not 
January                                  Feb. 15                            have a payroll during the 1st, 2nd, or 4th quarter-monthly periods, a 
February                                 Mar. 15                            quarter-monthly payment does not need to be submitted for those 
                                                      Payment is            three periods.
March                      May 1, 2023   May 01       required within 
April                                    May 15       three banking         The withholding tax return is due by the 15th day of the following 
May                                      Jun. 15      days for the          month,  except for  the third  month of  a quarter, which  is due 
June                       Jul. 31, 2023 Jul. 31      periods ending 
July                                     Aug. 15      the 7th, 15th,        the last day of the following month. If a balance is due, pay the 
August                                   Sept. 15     22nd and the          remaining amount using TXP or online filing. Submit a withholding 
September                  Oct. 31, 2023 Oct. 31      last day of a         tax return by printing and mailing a Form MO-941 or online at  
October                                  Nov. 15      month.                mytax.mo.gov/rptp/portal/home/fileandpaybusinesstaxesonline.
November                                 Dec. 15
December     Jan. 31, 2024 Jan. 31, 2024 Jan. 31, 2024
                                                                            See page 2 for more information on alternative filing methods.
                                                                            Any employer who has been placed on a quarter-monthly 
12.  Quarter-Monthly                                                        payment frequency who has not withheld $9,000 or more in 
Any employer who withheld $9,000 or more in each of at least                two months of the prior 12 months, may request permission 
two months during the prior 12 months shall remit payment to                from the Department to pay on a less fre quent basis. An 
the Director of Revenue on a quarter-monthly basis. One of the              employer must pay on a quarter-monthly basis for a minimum of 12 
alternative payment methods on page 2 must be used.                         months before requesting a change in filing frequency.
A quarter-monthly period means:                                             13.  Under and Over Reporting of Withholding
1)  The first seven days of a calendar month;                               If withholding tax was under or over reported on any Form MO-941 
2)  The eighth to the fifteenth day of a calendar month;                    filing, the employer must file an Amended Form MO-941.  Indicate 
3)  The sixteenth to the twenty-second day of a calendar month;             on the MO-941 if the form is an Amended.
4)  The twenty-third day through the last day of a calendar month.
                                                                            Underpayments: Interest and additions to tax will be imposed 
The employer must make a payment, at the end of each 
                                                                            on the underpaid portion according to established procedures. 
quarter-monthly period to pay 90 percent of the withholding due for 
                                                                            The Additions to Tax and Interest Calculator is located at  
the filing period. The payment must be made within three banking 
                                                                            dor.mo.gov/calculators/interest/.
days following the end of the quarter-monthly period or deposited 
in a depository designated by the director within four banking days         Overpayments: Employers should first verify with the Missouri 
after the end of the quarter-monthly period. Banking days shall             Department of Revenue the amount of overpayment the employer 
not include Saturday, Sunday, or legal holidays. The compensa-              is authorized to claim. Documentation supporting any overpayment 
tion authorized in    Section 143.261, RSMo, may be taken by the            must be submitted with any Amended Form MO-941. For example, 
employer against the payment required to be made only if such               if tax was withheld to Missouri and should have been withheld to 
payment is made on a timely basis.                                          another state, a W-2C must be provided. If the adjustment is due to 
                                                                            a calculation error, a payroll ledger showing the correction must be 
As a quarter-monthly remitter you have the option to:
                                                                            provided. In other instances, the employer must provide a detailed 
1.  Pay 100 percent of the estimated quarter-monthly amount, as             explanation of the errors that occurred. 
      deter mined by the Department, within three banking days after 
                                                                            If the Department authorizes an overpayment, the overpayment 
      the end of each quarter-monthly period (four times a month); 
                                                                            may be used to offset a debt within your withholding tax account. 
or 
                                                                            Any overpayment can be used on Line 3 of a future paper MO-941 
2.  Pay at least 90 percent of the actual tax due by the due date           return or issued back as a refund upon completion of the Employer 
      of that particular quarter-monthly period. If there is not a          Withholding Tax Refund Request (Form 4854).
      pay roll during a quarter-monthly period, no quarter-monthly 
                                                                            Claims for overpayment must be postmarked within three years 
      pay  ment voucher is necessary.
                                                                            from the date the return was filed or two years from the date the 
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tax was paid, whichever period expires later. If no return was filed       engineering, legal, research, promotion, planning, satisfaction of 
by the employer, a claim for credit or refund must be filed within         bonds, any other expenses. An interested Port Authority must 
two years from the time the tax was paid. No claim for credit              submit Notice of Intent to the Missouri Department of Revenue and 
or refund will be allowed after the expiration of the period of            work with the Missouri Department of Economic Development to  
limitations prescribed in Section 143.801, RSMo.                           establish base employment at the project facility and further  
An Amended Form MO-941 may be obtained by accessing the Depart-            document  the  creation  of  the  new  jobs.    An  employer  inter-
ment’s website at: dor.mo.gov/forms/, writing the Taxation Division,       ested in this program or tax credit should contact the Missouri 
P.O. Box 3022, Jefferson City, MO 65105-3022.                              Department of Economic Development, Business and Community 
                                                                           Services Finance Management at P.O. Box 118, Jefferson City, MO 
14.  Employer Compensation                                                 65102-0118, telephone (573) 751-4539 or send an e-mail message to  
Employers, except the United States, the state of Missouri, and all        dedfin@ded.mo.gov. Additional information may also be found at 
agencies and political subdivisions of the state of Missouri or the        ded.mo.gov/.
United States Government, may deduct and retain as compensation 
from remittances made to the Director of Revenue on or before              18.  Delinquent Returns  and Payments  — Penalty, 
the respective due dates for the payment involved, the following           Interest, Additions to Tax
percentages of the total amount of tax withheld and paid annually.         1.  Interest at the rate of 6 percent for calendar year 2023, 
 COMPENSATION PERCENTAGE  YEAR-TO-DATE TOTAL JANUARY–DECEMBER              (.0001644 daily rate computation) must be included on all 
                                                                           payments of tax not filed on a timely basis pursuant to Section 
          2%                             0 to $5,000                       143.731, RSMo. Interest is subject to change on an annual 
          1%                         $5,001 to $10,000                     basis pursuant to Section 32.065, RSMo.
          1/2%                       In Excess of $10,000
                                                                           2.  An employer’s failure to file a required return timely, unless 
This is an annual accumulative total. After employers withhold             due to reasonable cause and not to willful neglect, will result 
$10,000, they are entitled to one-half percent compensation for the        in additions to tax of 5 percent per month or fraction thereof, 
balance of the year.                                                       not to exceed 25 percent per Section 143.741(1), RSMo.
The employer is not entitled to compensation if payment is not             3.  A deficiency is subject to additions to tax of 5 percent, if the  
made  on  or  before  the  due  date.  If  the  compensation  deduction    deficiency  is  due  to  negligence  or  disregard  of  rules  and 
is allowable, the deduction must be deducted on each return filed.         regulations, or 50 percent if the deficiency is due to fraud per 
                                                                           Sections 143.751(1) and (2), RSMo.
Notice to Quarter-Monthly Remitters: The compensation deduction  
                                                                           4.  Failure to pay tax timely will result in additions to tax of 5 
authorized in Section 143.261, RSMo may be taken by the employer 
                                                                           percent per 
against the payment required to be made as long as the payment                         Section 143.751(3), RSMo.
is made by the employer on a timely basis as provided in Section           5.  A  person  who  willfully  fails  to  collect,  account,  or  pay  
143.851, RSMo.                                                             withheld taxes is subject to a penalty equal to the amount 
                                                                           not paid per     Section 143.751(4), RSMo. In addition, any 
15. Missouri Works Training - New Jobs Training                            officer, director, or statutory trustee of any corporation 
 and Job Retention Training                                                who has direct control, supervision, or responsibility for 
Eligible  employers  and  junior  college  districts  may  enter  into  a  filing returns and making payments of the tax, who fails 
cooperative agreement establishing new jobs and job retention              to file or make payment, shall be personally assessed the 
training projects with the approval of the Missouri Department of          tax, including interest, additions to tax, and penalties per 
Economic Development. The pro gram costs may be met by receipt             Section 143.241.2, RSMo.
of new jobs or job retention credit from withholding. An employer          6.  Criminal penalties are also provided in Sections 143.911 to 
interested in this program should con tact the Missouri Department         143.951, RSMo.
of Economic Development, Division of Workforce Development,                7.  A Certificate of Tax Lien may be filed for record with the 
P.O. Box 1087, Jefferson City, MO 65102-1087, telephone (800)              recorder’s  office.  The  lien  shall  be filed  on  the date  an  
877-8698.                                                                  assessment  becomes  final  and  shall  attach  to  all  real  and 
                                                                           personal property owned by or acquired by the taxpayer. A 
16.  Missouri Works Program                                                Certificate of Tax Lien may also be filed with the clerk of the 
As an  incentive  for new job  creation,  employers  meeting certain       circuit court and shall have the force and effect of a default 
eligibility requirements may be allowed to retain a percentage             judgment pursuant to Section 143.902, RSMo.
of the withholding tax for each new job created. An employer 
interested in this program or tax credit should contact the                19.  Failure to Pay Taxes Withheld
Missouri Department of Economic Development, Business and                  Any employer who fails to remit income tax withheld or to file tax 
Community Services Finance Management at P.O. Box 118,                     returns as required, may be required to deposit the taxes in a special 
Jefferson City, MO 65102-0118, telephone (573) 751-4539                    trust account for Missouri (see Section 32.052, RSMo). Penalties are 
or send an e-mail message to     dedfin@ded.mo.gov. Additional             provided for failure to make payment. If the Director of Revenue finds 
information may also be found at ded.mo.gov/.                              that the collection of taxes required to be deducted and withheld by 
                                                                           an employer may be jeopardized by delay, he or she may require 
17. Advanced Industrial Manufacturing Zones Act
                                                                           the employer to remit the tax or make a return at any time. A lien 
As an incentive for new Job creation, Section 68.075, RSMo,                outstanding with regard to any tax administered by the director shall 
establishes the Port Authority AIM Zone Fund. This program provides        be a sufficient basis for this action (see Section 143.221.4, RSMo). 
that 50% of the state tax withholdings on new jobs located in the          Effective August 28, 2004, any business with a retail sales tax license 
zone to be deposited into the Port Authority AIM Zone Fund for             who fails to pay withholding tax is subject to license revocation.
the purpose of continuing to expand, develop, and redevelop AIM 
Zones identified by a port authority and may be used for managerial,  

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Personal Liability                                                        e-mailed to    elecfile@dor.mo.gov. The subject of your e-mail must 
Any officer, director or statutory trustee of any corporation,            read “Compact Disc or Flash Drive Password”.  Your e-mail will must 
including administratively dissolved corporations, or foreign             contain all of the information displayed on the label of your compact 
corporations that have had their certificate of authority revoked,        disc or flash drive. 
subject to the provisions of Sections 143.191 to 143.265, RSMo,           Do not include the fourth quarter or 12th month return with the 
who has the direct control, supervision, or responsibility for filing     Form W-2(s) or Form 1099-R(s) and Form MO W-3. The last annual 
returns or making payment of the amount of tax imposed in                 remittance must be sent separately with Form MO-941.
accordance with Sections 143.191 to 143.265, RSMo, and who fails 
to file such return or make payment with the Director of Revenue,         Any employee copies of Form W-2(s) or Form 1099-R(s) that were 
shall be personally assessed for such amounts, including interest,        returned to the employer as undeliverable must be kept by the 
additions to tax, and penalties (see Section 143.241.2, RSMo).            employer for at least four years.
                                                                          Failure to file a timely duplicate Wage and Tax Statement (Form 
20.  Statements for Employees
                                                                          W-2) is  subject to a penalty  of $2 per statement  not to  exceed 
Two copies of the Wage and Tax Statement (Form W-2) shall be              $1,000, unless the failure is due to reasonable cause and not willful 
provided to each employee to whom wages were paid and were                neglect per Section 143.741(2), RSMo.
subject to withholding tax whether or not tax was withheld from 
such payments. Wages include sickness or injury payments made             B.  Paperless Reporting
by an employer under wage continuation plans, whether paid in             Employers with 250 or more Form W-2s must file their annual 
cash or otherwise.                                                        report electronically. The Department’s paperless reporting format 
                                                                          conforms with the Specifications for Filing Forms Electronically 
The Form W-2 supplied by the Internal Revenue Service must be 
                                                                          (EFW2) format used by the Social Security Administration with 
used for this purpose unless the employer uses a substitute form 
                                                                          some Missouri specific modifications as outlined on our website 
approved in writing by the Department.
                                                                          at dor.mo.gov/taxation/business/tax-types/withholding/efw2.html. 
If it becomes necessary to correct Form W-2 after it has been issued      Employers  with  fewer  than  250  W-2s can  also  file  through  our 
to an employee, two corrected Form W-2s should be issued to the           electronic filing method. For more information visit our website at 
employee and a copy mailed to the Department. The new copies              dor.mo.gov/taxation/business/tax-types/withholding/efw2.html  . If 
must be clearly marked Corrected by Employer.”                           you have additional questions you may contact the Department’s 
In case a Form W-2 is lost or destroyed, a substitute copy must be        Electronic Services Section by e-mail at elecfile@dor.mo.gov or by 
issued to the employee and must be clearly marked “Reissued by            telephone at (573) 751-8150.
Employer.”                                                                If you already include the RS records on your Social Security Admin-
                                                                          istration file and you are not required to file electronically and do 
Form W-2 and the Distributions From Pensions, Annuities,                  not wish to file electronically, you may copy that information onto 
Retirement  or Profit-Sharing  Plans,  IRAs, Insurance  Contracts,        a compact disc or flash drive and send to the Department. If you 
etc. (Form 1099-R), must be provided to the employee  on or               do not include the RS records in your SSA file you must add the 
before January 31 of the following calendar year for which the            RS records before submitting your Missouri file via compact disc or 
Form W-2 or Form 1099-R  applies. File Form 1099-R  for each              flash drive. The additional data specifications for paperless reporting 
person to whom you have made any designated distribution from             required  by  the  state  of  Missouri  are  listed  on  our  website  at  
profit-sharing or retirement plans, IRAs, annuities, pensions, etc.,      dor.mo.gov/taxation/business/tax-types/withholding/efw2.html. If 
whether or not you withheld Federal or Missouri income tax.               you have any questions regarding the reporting of your Form W-2s, 
21.  Final or Annual Report of Income Tax Withheld                        please call (573) 751-8150.
                                                                          For information regarding Form MO-99 MISC. reporting, please visit 
A. Annual Report                                                                                                                      dor.
                                                                          mo.gov/taxation/business/tax-types/withholding/efw2.html. Scroll the 
Annually, each employer must file copies of all withholding               FAQs to the heading of “Information at Source Reporting”.
statements, Form W-2 or Form 1099-R, Copy 1, for the year, along 
with the Transmittal of Tax Statements (Form MO W-3). Employers           The Department will not provide notification when paperless 
with 250 or more employees are required to submit these items             information is processed; nor will the Department return compact 
electronically (see item B) by the last day of January. Paper filers are  discs or flash drives to the employer.
required to submit copies of all withholding statements by the last       C.  Form W-2 Corrections
day of February. Paper filers must also be accompanied by a list,         If after you have filed your Form W-2(s) and Form MO W-3, you 
preferably an adding machine tape or a computer printout, of the          discover  an error in Line  17 or the original  W-2(s), and need  to 
total amount of the income tax withheld as shown on all “Copy 1s”         file a Form W-2C(s) you must correct it by remitting an amended 
of Form W-2 and Form 1099-R.                                              Form MO-941. This form must be used to increase or decrease 
Send Form W-2(s) and Form 1099-R(s) and Form MO W-3 to the                any previously reported tax amounts. Attach a copy of the Form 
Mis souri Department of Reve nue, P.O. Box 3330, Jefferson  City,         W-2C(s) to the amended Form MO-941 and Form W-3. If you have 
MO 65105-3330 in convenient size packages. Each package must              discovered an incorrect figure was indicated on the original Form 
be identified with the name and account number of the employer,           MO W-3; however, no changes need to be made to the amount  
and the packages must be consecutively numbered. Your compact             withholding: submit a new Form MO W-3 with the correct figures 
disc(s) or flash drive(s) must contain an external label containing the   and check W-3 Corrected on the top left corner.
tax year, Missouri I.D. Number, Business Name, and Return Address.        Note: Do not send copies of W-2C(s), if no change in withholding 
If you are submitting more than one (1), put a label on each, and         tax liability. 
number them according to the order they should be processed. If 
you wish to password protect your compact disc or flash drive, label      D.  Combined Federal/State Filing (CF/SF) Program with the Internal  
your item as “Password Protected” and the date the password was              Revenue Service
sent to the Department,  prior to mailing. The password must be           Missouri does participate in the Combined Federal/State Filing (CF/
                                                                          SF) Program which allows you to only file miscellaneous income 
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to the Internal Revenue Service. Through the program, the Internal       2)  Amounts and dates of all wage payments subject to Missouri 
Revenue Service, Information Returns Branch (IRS/IRB) will forward       income tax withholding;
original and corrected information returns filed electronically to the   3)  Employee’s state  income tax withholding certificate; 
Department free of charge for approved filers. Separate reporting to      
Missouri is not required. 
                                                                         4)  Employer’s state income tax withholding registration number;
The information returns that may be filed under the Combined 
                                                                         5)  Record  of  quarter-monthly,  monthly,  quarterly,  and  annual 
Federal/State Filing Program are:
                                                                         returns filed including dates and amounts of payments;
Form 1099-DIV Dividends and Distributions
Form 1099-G Certain Government Payments                                  6)  Records that would assist the Department in auditing the 
Form 1099-INT Interest Income                                            employer’s records.
Form 1099-MISC Miscellaneous Income                                      All records should be kept for at least three years after the date the  
Form 1099-OID Original Issue Discount                                    taxes to which they relate become due, or the date the taxes are  
Form 1099-PATR Taxable Distributions Received From Cooperatives          paid, whichever is later.
Form 1099-R Distributions From Pensions, Annuities, Retirement 
                                                                         In addition to the records listed above, all records of the allocation 
 Profit-Sharing Plans, IRAs, Insurance Contracts, etc., and 
                                                                         of working days in the state of Missouri must be retained for all 
Form 5498 IRA Contribution Information
                                                                         nonresident employees. 
However, to participate in this program you must receive written 
approval by the Internal Revenue Service. Once the approval letter        Other Important Telephone Numbers
has been received, notify the Department of your company’s partici-      Individuals with speech or hearing impairments may use TTY (800) 
pation by submitting a copy of the approval letter by either mail;       735-2966 or fax (573) 522-1762.
Missouri Department of Revenue, Taxation Division, P.O. Box 3375,        Electronic Filing Information .. .. .. .. .. .. .. .. .. ..   (573) 751-8150
Jefferson City, MO 65105-3375, fax (573) 522-6816 or e-mail to           General Inquiry Line .. .. .. .. .. .. .. .. .. .. .. .. .. ..   (573) 522-0967 
withholding@dor.mo.gov. If you do not participate in the program, 
you must file the information separately with the Missouri Depart-
ment of Revenue. 
For additional information regarding this program, please review the 
Internal Revenue Service’s website www.irs.gov/taxtopics/tc804 Tax 
Topic 804.
22.  Closing a Withholding Account and Final Report
An employer must notify the Department to close its withholding 
tax account. The Department will not automatically close the 
account because it stops making payments and filing returns.  An 
employer should close its withholding account if any of the following 
occur:
 • It permanently stops doing business;
 • It permanently stops having employees; or
 • It has a major change in business, such as forming a partnership 
 or joining others to form a corporation.
To close the account, use the Final Report (Form 5633), 
Registration or Exemption Change Request (Form 126) Failure to 
notify the Department to close the account will cause estimated  
billings to be issued. If a Non-Filer Notice is received, the employer 
must report and remit the actual amount withheld to the Depart-
ment.
23.  Records to be Kept by Employers
The following records must be retained for all employees:
 1)  Name, address, social security number, and period of  
     employment;

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              Employer Withholding Tax Frequently Asked Questions
Q.    What is the timely compensation deduction?
A.  Employers who are not government agencies or political subdivisions may receive a deduction if their Employer’s Return 
    of Income Taxes Withheld (Form MO-941) is timely filed and timely paid. The timely compensation begins at 2 percent 
    and is reduced to 1 percent once the employer’s year-to-date withholding reaches $5,000. The amount of compensation 
    deduction is reduced to one-half percent once the year-to-date withholding reaches $10,000.
        For example, if my employer withholding tax is $4,000 for the month of January, I will receive a 2 percent timely compen-
    sation if timely filed and timely paid. If my February withholding tax is $4,000, (my year-to-date withholding tax would 
    be $8,000), I will receive a 2 percent compensation deduction for $1,000 and a 1 percent compensation deduction for 
    the remaining $3,000 of the February withholding tax if timely filed and timely paid.
Q.   How do I file a corrected withholding tax return?
A.   If you have overpaid or underpaid your withholding tax, file an Amended Form MO-941.  
Q.   How can I take a credit if I have an overpayment?
A.  When you receive confirmation from the Department that an overpayment exists on your withholding account, you may   
    claim it on line three of your Form MO-941 return. You must submit form 4854 requesting the credit amount and the  
    period you would like the credit to be applied to. 
Q.   When do I need to send copies of my Form W-2(s) to the Department?
A.   You must send your Form W-2(s) to the Department with Form MO W-3 on or before the last day of January if you are 
    required to file electronically and paper filers must file by the end of February. You may send copies of Form W-2(s) 
    to the Department if you have less than 250 Form W-2s. If you have 250 or more Form W-2s,visit our website at  
    https://dor.mo.gov/business/withhold/EFW2.php for electronic filing specifications.
Q.   Can I submit my 4th quarter Form MO-941 electronically with my annual report.
A.   No, Form MO-941 returns must be filed separately. 

                                  Checklist For Filing Form W-2s
•  Form W-2s must be provided to the employee on or before January 31.
•  If you have less than 250 Form W-2s, you may send copies or use the compact disc, flash drive, or electronic filing 
    options by the last day of February.
•  If you have 250 or more Form W-2s, you must file Form W-2s electronically. Compact disc or flash drives are not 
    acceptable.
•  You must enclose Form MO W-3 with your Form W-2s, your compact disc, or flash drive. Electronic filers must include 
    MO W-3 information in the RV record.
•  Submit your electronic files on or before January 31.
•  Submit paper Form MO W-3 and Form W-2s, your compact disc or flash drive to the Missouri Department of Revenue,  
    P.O. Box 3330, Jefferson City, Missouri 65105-3330 on or before the last day of February.

The Missouri Department of Revenue will accept compact discs or flash drives containing records for reporting wage 
information. The employer must use the Specifications for Filing Forms W-2 Electronically (EFW2) format provided by the 
Social Security Administration (SSA). 

Ever served on active duty in the United States Armed Forces?  
If yes, visit dor.mo.gov/military/ to see the services and benefits we offer to all eligible military individuals. A list of all state 
agency resources and benefits can be found at veteranbenefits.mo.gov/state-benefits/.

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                       2023 Missouri Withholding Tax Formula

Step 1—Using Annual Amounts                                    Step 2
(Refer to Federal Publication 15 for questions con cerning     1. Missouri  Withholding Tax — Multiply the 
gross taxable income.)                                            employee’s Missouri taxable income by the 
                                                                  applicable annual payroll period rate. Begin at the 
1. Gross Taxable Income — Determine the employ-
                                                                  lowest rate and accumulate the total withholding 
   ee’s total wages for the payroll period. Multiply 
                                                                  amount for each rate. The result is the employee’s 
   this amount by the number of payroll periods you 
                                                                  annual Missouri withholding tax.
   have in a year. The result is the employee’s annual 
   wage.  (Multiply by: 260  if  you  pay daily,  52 if  you   2. Missouri Withholding Tax Per Payroll Period     
   pay weekly, 26 if you pay bi-weekly, 24 if you pay             Divide the employee’s annual Missouri withholding 
   semi-monthly, or 12 if you pay monthly.)                       amount by: 260 if you pay daily, 52 if you pay weekly, 
                                                                  26 if you pay bi-weekly, 24 if you pay semi-monthly, 
  Note: If the employee has supplemental or overtime 
                                                                  12 if you pay monthly. The result is the employee’s 
   pay, see the withholding procedures outlined below.
                                                                  Missouri withholding tax per pay period.
2. Filing Status - Standard Deduction (annual amounts) 
                                                               Rounding on Missouri Withholding Reports.  You  must 
  Single: $13,850 
                                                               round the amounts that you withhold from your employees 
  Married and Spouse Works: $13,850                            to the nearest whole dollar. 
  Married Filing Separate: $13,850 
                                                                                Visit 
  Married and Spouse Does Not Work (this is 
   determined by the check box on Form MO W-4, Line            https://mytax.mo.gov/rptp/portal/home/withholding-calculator 
   1, and is not a separate filing status): $27,700               to access our online withholding tax calculator.
  Head of Household: $20,800  
3. Missouri Taxable Income — Subtract the annual  
   Standard Deduction from the annual gross taxable income. 
   The result is the employee’s Missouri taxable income.

In the 2018 legislative session, House Bill 2540 was passed and amended Section 143.171, RSMo, related to 
the federal tax deduction. Effective for tax year 2019, the federal income tax deduction taxpayers may claim 
is prorated based on the taxpayer’s Missouri adjusted gross income. In an attempt to ease implementation of 
the new withholding formula, the Department of Revenue chose to remove the federal tax deduction from the 
withholding tax calculation. This change may result in a small increase to the amount withheld from employee’s 
paychecks. Any withholding in excess of the tax owed will be refunded after the taxpayer files their individual 
income tax return.

The Department of Revenue encourages all employees to review their W-4 and to make corresponding changes 
based on their filing status. There are no longer allowances in the Missouri withholding tables. Employees can 
no longer increase or decrease the amount withheld from their paychecks by claiming allowances that are not 
consistent with their specific filing situation. If the employee needs additional amounts withheld, they should add 
the additional amount on line 2 of the W-4.

                                   Supplemental Pay Withholding
If the employee has supplemental or overtime pay, and the payment is included with normal wages, apply the 
withholding formula to the total payment as if it was a regular payroll wage payment.

If the employee has supplemental or overtime pay and the overtime wages are paid separately from regular 
wages, you may withhold based upon one of the following two methods.

•  Withhold a flat percentage rate of 4.95 percent of the supplemental wages; or

•   Add the supplemental wages to the regular wages paid for the payroll period and apply the withholding 
   formula to the total amount as if it was a regular payroll wage payment. Then subtract the tax already 
   withheld from the regular wage payment and withhold the remaining tax from the supplemental payment.

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                                  Income Tax Withholding Percentage Tax
                                      Daily                          Weekly                        Bi-Weekly
Rates                                 Payroll                        Payroll                       Payroll
0%                                  $  0.00  to  $  5.00            $  0.00  to  $  23.00      $  0.00  to  $  46.00
2.0%                                  5.01  to     9.00               23.01  to   46.00          46.01  to   93.00
2.5%                                  9.01  to   14.00                46.01  to   70.00          93.01  to   139.00
3.0%                                  14.01  to    19.00              70.01  to   93.00          139.01  to    186.00
3.5%                                  19.01  to    23.00              93.01  to    116.00        186.01  to    232.00
4.0%                                  23.01  to    28.00              116.01  to    139.00       232.01  to    279.00
4.5%                                  28.01  to    32.00              139.01  to    162.00       279.01  to    325.00
4.95%                                 32.01 and over                 162.01 and over               325.01 and over

                                      Semi-Monthly                   Monthly                       Annual
Rates                                 Payroll                        Payroll                        Payroll
0%                                  $  0.00  to  $  50.00          $  0.00  to  $ 101.00     $     0.00  to    $1,207.00
2.0%                                   50.01  to    101.00           101.01  to    201.00      1,207.01  to   2,414.00
2.5%                                  101.01  to    151.00           201.01  to    302.00      2,414.01  to   3,621.00
3.0%                                  151.01  to    201.00           302.01  to    402.00      3,621.01  to   4,828.00
3.5%                                  201.01  to    251.00           402.01  to    503.00      4,828.01  to   6,035.00
4.0%                                  251.01  to    302.00           503.01  to    604.00      6,035.01  to   7,242.00
4.5%                                  302.01  to    352.00           604.01  to    704.00      7,242.01  to   8,449.00
4.95%                                 352.01 and over                704.01 and over               8,449.01 and over

Note: By agreement between the employee and the employer, the employee may designate additional withholding per pay period if he 
or she expects to owe more than the amount withheld.  Additional amount of withholding may be claimed on Line 2, of the Employer’s 
Withholding Certificate (Form MO W-4).

Missouri Withholding Formula Example                                 Income Tax Withholding Percentage Table 
                                                                               (Annual Payroll Period)
Employee is married (spouse works)
                                                             $ 1,207.00  x  0.0%  =  $  0.00  $   21,150.00
  Annual Gross Taxable Income  $35,000.00                      1,207.00  x  2.0   =    24.00    –  8,449.00
  Annual Standard                                              1,207.00  x  2.5   =    30.00  $    12,701.00 EXCESS
   Deduction       – 13,850.00                                 1,207.00  x  3.0   =    36.00    x  4.95%
                                                               1,207.00  x  3.5   =    42.00  $       628.70
  Missouri Taxable                                             1,207.00  x  4.0   =   48.00
   Income          21,150.00                                   1,207.00  x  4.5   =    54.00  $    628.70
                                                                                               +   234.00
                                                               8,449.00               234.00  $    862.70  Annual
                                                                                                             Missouri 
                                                                                                             Withholding

                                                                  $862.70  ÷12 = $72.00   Monthly Missouri Withholding
                                                                                           (Rounded to the nearest  
                                                                                            whole dollar.)

                                                           Tips
•  Make employees aware of their option to change or update their Form MO W-4.
•  If employees have overtime pay, use the appropriate formula for supplemental pay withholding.
•   If the employee is married, but spouse does not work, apply the full standard deduction.
• In order to keep your account up to date and fully filed you will need to submit returns for each filing period, 
even if no tax was withheld. 

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                                                                                      Department Use Only
           Form                                                                       (MM/DD/YY)
 MO-941              Employer’s Return of Income Taxes Withheld
                                                                                                                                                           Amended Return

                                                          Address Change - In the event your mailing address or primary business location changed, please 
                                                          complete the Registration or Exemption Change Request (Form 126) and submit it with your return.
Filing Frequency
Missouri Tax                                        Federal Employer                              Reporting Period
I.D. Number                                         I.D. Number                                   (MM/YY)
Business
Name

Address

City                                                                                                                                                       State

ZIP                        -

                     Final Return                   1.  Withholding this period ..................................................................       1      . 00
 If this is your final return, enter the close date 
 below and check the reason for closing your 
 account.                                           2.  Compensation deduction ...............................................................           2      . 00
 Date Closed
 (MM/DD/YY)                                         3.  Existing credit(s) or overpayment(s) ..............................................              3      . 00

           Out Of Business      Sold Business       4.  Balance due ...................................................................................  4      . 00

           Filed under Professional Employer        5.  Additions to tax (see instructions) ..................................................           5      . 00
           Organization (PEO)
           PEO Name  ____________________           6.  Interest (see instructions) ..............................................................       6      . 00
           ______________________________
                                                    7.  Total amount due (U. S. Funds only) or overpaid ..........................                       7      . 00

                                                                                      Department Use Only                                                       . 00
           Under penalties of perjury, I declare that the above information and any attached supplement is true, complete, and correct.

           Signature                                                   Printed Name
 Signature                                                                            Date Signed 
           Title                                                                      (MM/DD/YY)

           Visit our website at mytax.mo.gov/rptp/portal/home/fileandpaybusinesstaxesonline to e-file this return.
 E-filing provides a fast and secure way for you to transmit your return and any applicable payment to the Department of Revenue.  All 
 transactions provide a confirmation number which you can keep for your records to verify that your filing has been received.  E-filing 
 also eliminates the need to physically mail your return and payment.

                                  See page 2 for instructions on completing Form MO-941.

             Taxation Division                      E-mail: withholding@dor.mo.gov                                                                         Form MO-941 (Revised 06-2022) 
Mail to: 
             P.O. Box 999                           Visit dor.mo.gov/taxation/business/tax-types/withholding/ for additional information.
             Jefferson City, MO 65105-0999
                                                    Ever served on active duty in the United States Armed Forces?  
 Phone:          (573) 751-7200                     If yes, visit dor.mo.gov/military/ to see the services and benefits we offer to all eligible 
     Fax:        (573) 522-6816                     military individuals. A list of all state agency resources and benefits can be found at 
                                                    veteranbenefits.mo.gov/state-benefits/.

                                                    *14207010001*
                                                                     14207010001
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      Form
  MO W-4               Employee’s Withholding Certificate
                       This certificate is for income tax withholding and child support enforcement purposes only. Type or print.
            Full Name                                                                                                           Social Security Number 

            Home Address (Number and Street or Rural Route)                                 City or Town                        State                             ZIP Code 

             1.  Filing Status: Check the appropriate filling status below. 
                     r Single or Married Spouse Works or Married Filing Separate             r Married (Spouse does not work)   
                     r  Head of Household 

             2.  Additional withholding: If you expect to have a balance due (as a result of interest income, dividends, income from a 
                part-time job,  etc.) on your tax return, you may request your employer to withhold an additional amount of tax from each 
                pay period. To calculate the amount needed, divide the amount of the expected tax by the number of pay periods in a  
                year. Enter the additional amount to be withheld each pay period on line 2.....................................  2
             3.  Reduced withholding: If you expect to receive a refund (as a result of itemized deductions, modifications or tax credits)                        
                on your tax return, you may direct your employer to only withhold the amount  indicated on line 3. Your employer 
  Employee      will not use the standard calculations for withholding. If you designate an amount that is too low, it could result in you  
                being under withheld. To calculate the amount needed, divide the amount of your expected tax by the number of pay  
                periods in a year. Enter the amount to be withheld instead of the standard calculation. If no amount is indicated on 
                line 3, the standard calculations will be used.............................................................  3
             4.  Exempt Status: Select the appropriate reason you are claiming an exemption from withholding below and indicate                                  
                EXEMPT on line 4. ............................................................... .................  4
              
                r    I am exempt because I had a right to a refund of all Missouri income tax withheld last year and expect to have no tax liability  
                     this year. A new MO W-4 must be completed annually if you wish to continue the exemption. 
               r     I am exempt because I meet the conditions set forth under the Servicemember Civil Relief Act, as amended by the  
                     Military Spouses Residency Relief Act and have no Missouri tax liability.
               r     I am exempt because my income is earned as a member of any active duty component of the Armed Forces of the  
                     United States and I am eligible for the military income deduction. 

            Under penalties of perjury, I certify that the information provided on this form is true and accurate.  
            Employee’s Signature (Form is not valid unless you sign it)                                                                                         Date (MM/DD/YYYY)
  Signature                                                                                                                                                     __ __ / __ __ / __ __ __ __  
            Employer’s Name                                                Employer’s Address

            City                                                           State                                                       ZIP Code

  Employer  Date Services for Pay First Performed by Employee (MM/DD/YYYY)                         Federal Employer I.D. Number                                 Missouri Tax Identification Number
             __ __ / __ __ / __ __ __ __                                                                 |      |      |      |      |      |      |      |           |      |      |      |      |      |      |      
Notice to Employer:
Within 20 days of hiring a new employee, a copy of the Employee’s Withholding Certificate (Form MO W-4) must be submitted by one of the following methods:  
          Email: withholding@dor.mo.gov
          Fax: 877-573-6172
          Mail to: Missouri Department of Revenue  
                     P.O. BOX 3340
                     Jefferson City, MO 65105-3340
Please visit dss.mo.gov/child-support/employers/new-hire-reporting.htm            for additional information regarding new hire reporting. 
Notice to Employee:
Return completed form to your Employer. Consider completing a new Form MO W-4 each year and when your personal or financial situation changes. Visit our online                   
withholding calculator mytax.mo.gov/rptp/portal/home/withholding-calculator.
Items to Remember:
•  Employees must complete a new form if their filing status changes or to adjust the amount of withholding.  
•  If you are claiming an “Exempt” status due to the Military Spouses Residency Relief Act you must provide one of the following to your employer: Leave and Earnings  
            Statement of the non-resident military servicemember, Form W-2 issued to the nonresident military servicemember, a military identification  card, or specific military  
            orders received by the servicemember. You must also provide verification of residency such as a copy of your state income tax  return filed in your state of residence,  
            a property tax receipt from the state of residence, a current drivers license, vehicle registration or voter ID card. For additional assistance in regard to Military, visit the  
            department’s website dor.mo.gov/military/.
•  Additional information can be found at         mo.gov/business/withhold/.
Mail to:             Taxation Division                    Ever served on active duty in the United States Armed Forces?                                           Form MO W-4 (Revised 10-2022)
                     P.O. Box 3340                        If yes, visit dor.mo.gov/military/ to see the services and benefits we offer to all eligible 
                     Jefferson City, MO 65105-3340        military      individuals. A list of all state agency resources and benefits can be found at             
  Phone:             (573) 522-0967                       veteranbenefits.mo.gov/state-benefits/.
              Fax:   877-573-6172
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