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*DO=NOT=SEND*

This  form  is  for  periods  starting  on  or  after  January  2018. If  you  need  to  file  or  amend a 
return  for  a  period  ending  on  or before  December  2017,  please  visit  the Sales  Tax 
Instructions  and Forms webpage and download the applicable DR 0100. 

Sales Tax Filing Change
Beginning with sales on January 1, 2018, the Colorado Department of Revenue (CDOR) will be 
requiring ALL Colorado sales tax licensees to report and pay sales tax to the penny, regardless of 
filing format. Matching nationwide standards, the included copies of blank sales tax returns no 
longer have “00” entered in the cents column. Instead, there is space for you to enter this 
information. 

Electronic Filing
Did you know 82% of Colorado sales tax returns are filed electronically? Please note the Colorado 
Department of Revenue will eventually discontinue mailing sales tax forms. Make the switch now to 
file your return electronically. Watch our YouTube video How to File the Colorado Sales Tax 
Return in Revenue Online to see how easy e-filing can be.

What are the benefits of filing online? 
• Free, Safe and Secure: CDOR’s Revenue Online service has not been compromised by data
security breaches.
• Save money: Avoid late filing penalty fee and loss of the vendor service fee from using old
or photocopied paper forms to file.
• Save time: No need to mail the tax return or visit us in person.
• Quicker return processing: Returns are more efficient when e-filed.
• Easy Math: Software will calculate how much tax is due for your site(s).
• Convenient: Use a computer or laptop to e-file.

How do I sign up for Revenue Online? 
Watch our YouTube video Tips on Setting Up a New Sales Tax Account in Revenue Online for 
helpful information.
1. Go to Colorado.gov/RevenueOnline and click “Create a Login ID” to start.
2. Select an entity type, read the instructions and then click “Next” to continue.
3. Follow the on-screen prompts to fill in the requested fields.
4. Enter Login/Password information for your account.
5. Enter Account Information.
6. After entering the required information you will see a confirmation page on your screen.
7. Retrieve the Authorization Code we sent to your email account. Then, return to Revenue Online
and enter the Login ID and Password you created.

         *If you cannot file your sales tax return electronically, watch our YouTube video
         How to File the Colorado Sales Tax Return Using the Paper Form and read our
             Common Filing Errors before you continue, to ensure you file correctly.*

Please scroll down to continue to the DR 0100 form.

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                                        DR 0100 (07/31/17) 
                                        COLORADO DEPARTMENT OF REVENUE                   Colorado Retail 
                                        Denver, CO 80261-0013 
*DO*NOT*SEND*                           Colorado.gov/Tax                                 Sales Tax Return

                                                              with Deductions & Exemptions Schedules

General Information
You must file a sales tax return every filing period, even if no tax has   Quarterly Returns:
been collected or no tax is due. Failure to file will result in estimated  January – March due April 20
billings. If you do not file the required returns, the department will     April – June due July 20
close your account and your sales tax license will no longer be valid.     July – September due October 20
Zero tax returns can be filed in Revenue Online.                           October – December due January 20
SSN and FEIN                                                               Annual Returns: due January 20
Verify  you  are  using  a  correct  Federal  Employer  Identification     Note: If the 20th is a weekend or holiday, the return is due the next 
Number (FEIN) or Social Security number (SSN). If your account             business day. 
does not have a valid FEIN or SSN, your return could be delayed            For more information, see FYI General 15: Colorado Department of 
and you will receive a notice to provide valid proof of the FEIN or        Revenue Tax Due Dates.
SSN. Note: This will also prevent you from obtaining an EFT number 
                                                                           Filing an Amended Return? 
for payments and prevent you from filing by spreadsheet or XML. 
                                                                           If you are filing an amended return, mark the amended return box. A 
Colorado Account Number                                                    separate amended return must be filed for each period and/or each site. 
Enter your eight-digit account number and four-digit site/location         The amended return must show all lines as corrected, not merely the 
number. For example: 00000000-0010. Each sales tax return must             difference(s). The amended return replaces the original in its entirety.
have a site/location number entered on the return in order to be 
                                                                           Recommended Forms, Publications and Resources
processed. This helps the department identify and properly allocate 
                                                                           Resources  available  on  the  Colorado  Taxation  website  
local jurisdiction taxes that are paid with the return. 
                                                                           Colorado.gov/Tax
If you have applied for your license, but do not have your account number, 
                                                                           • Sales and Use Tax General Information and Reference
contact the Customer Contact Center at 303-238-7378 for assistance.
                                                                           Guide, DR 0099
Period
Enter the filing period as MM/YY-MM/YY.                                    • FYI Sales 1: How to Document Sales to Retailers, Tax-
                                                                           Exempt Organizations and Direct Pay Permit Holders
If filing for the first quarter (Jan. through March) of 2017, the dates 
for this period on a paper form should be 01/17-03/17. When filing         • FYI Sales 4: Taxable and Tax Exempt Sales of Food
in Revenue Online, the system will only require the end date of each       and Related Items
period. (e.g., first quarter: 03312017)                                    • Colorado  Department  of  Revenue  Electronic  Funds
Location Jurisdiction Code                                                 Transferred (EFT) Program For Tax Payments, DR 5782
Enter the six-digit location jurisdiction code for your site/location.     • Authorization for Electronic Funds Transfer (EFT) For
The code can be found on your Sales Tax License under 'Liability           Tax Payments, DR 5785
Information' or in the Location/Jurisdiction Codes for Sales Tax           • Sales Tax web pages
Filing, DR 0800.
                                                                           • Colorado Business Resource Book, ColoradoSBDC.org
Due Date
                                                                           Learn more about Sales Tax
Returns must be filed online or postmarked on or before the 20th 
                                                                           FREE public tax classes are offered live and online. Please visit the 
day of the month following the reporting period.
                                                                           Education page of the Taxation website Colorado.gov/Tax/Education 
Monthly  Returns:  due  the  20th  day  of  the  month  following  the     to view current schedules and to register for a class near you.
reporting month.

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DR 0100 (07/31/17)
COLORADO DEPARTMENT OF REVENUE
Denver, CO 80261-0013
*DO*NOT*SEND* Colorado.gov/Tax

Colorado Sales Taxes spreadsheet filing, refer to the Spreadsheet Upload Handbook
State Sales Tax available at the Taxation website under the Alpha Index letter "S"
The state sales tax rate is 2.9% and is reported in the state column for spreadsheet filing.
of this return. PAPER FILING INSTRUCTIONS
RTD and CD Taxes Line 1. Gross Sales and Services
Regional Transportation District (RTD) and the Scientific and Cultural Enter total gross sales and services for this site/location only.
Facilities District (CD) taxes are administered in the same manner Include all taxable and nontaxable sales and collection of bad debts
as state sales tax. The RTD sales tax rate is 1% and the CD sales previously deducted. You will enter non-taxable deductions and
tax rate is .1%. These taxes are reported in the RTD/CD column. exemptions on the Deductions and Exemptions Schedules.
Special District Taxes Line 2a. Sales to licensed dealers
Special district taxes which are reported in the Special District Enter sales made to other licensed dealers (retailers) for resale.
column include the Regional Transportation Authority (RTA), Multi- Line 2b. Deductions
Jurisdictional Housing Authority (MHA), Public Safety Improvements Enter allowed deductions listed on the deductions schedule from
(PSI), Health Services District (HSD) and the Metropolitan District Page 2; Part A. Deductions taken on the "Other" line must include
Tax (MDT). an explanation. If you are claiming deductions on this line, the
Special district taxes which are not reported in the special district deductions schedule must be completed.
column include the Mass Transportation System Tax (MTS) and the Line 3. Net Sales
Local Improvement District Tax (LID). MTS is reported in the County/ Subtract total deductions (line 2c) from gross sales and services
MTS column and LID taxes are reported in the City/LID column. (line 1) $______________ this is your net sales. Enter this amount
The Baptist Road RTA (BRRTA) and the Football District Tax (FD) in each applicable column. The net sales must be the same across
have both expired and any tax collected on periodic lease or credit all applicable columns. Do not enter different amounts in the State,
payments must be remitted on the Colorado Special District Sales RTD/CD, Special District, County/MTS and the City/LID columns.
Tax Return Supplement, DR 0200. Line 3a. Sales out of taxing area
County and City Taxes Enter the amount of sales delivered out of your taxing area for this
site/location only. Note: This is applicable to physical site/locations
County and city sales taxes collected by the state are administered
only.
in the same manner as state sales tax. If the sale is subject to
state sales tax, it is also subject to state-collected local sales tax. Line 3b. Exemptions
Exceptions to this guideline as well as local sales tax rates are listed Enter the amount of state and applicable local exemptions listed
in the Colorado Sales/Use Tax Rates, DR 1002. Local sales taxes on the exemptions schedule from Page 3; Part B. Exemptions
are reported in the County/MTS and City/LID columns. taken on the "Other" line must include an explanation. Exemptions
may be specific to state, county, city and special districts. Refer to
For more information on guidelines for local sales tax, refer to
DR 1002. If you are claiming exemptions on this line, the exemptions
FYI Sales 62: Guidelines for Determining When to Collect State-
schedule must be completed.
Collected Local Sales Tax.
Line 3c. Overpayment from previous return
Self-Collected Home-Rule Cities
If you overpaid sales tax on a previous return, you may deduct
Home-rule cities that collect their own local sales tax may have the overpayment amount on line 3c only if there is not an existing
different guidelines and must be contacted directly. These cities are credit on the account due to the overpayment. To calculate the dollar
listed in the DR 1002 along with their contact information. amount on line 3c, you will divide the tax overpayment by the same
REVENUE ONLINE FILING INFORMATION tax rate you used to calculate the tax due on the original return.
You Can File Your Return Online! The calculation must be done for each applicable tax for each site.
To save time and reduce filing errors, file this return through Revenue Do not reduce the tax liability below zero. Note: If a credit is carried
Online. Use Colorado.gov/RevenueOnline to register, file, pay and forward for city taxes, the credit can only be deducted in the city
manage your sales tax account. column.
If you cannot file through Revenue Online, refer to the Paper Filing Tax Rate: Tax rates are listed in the Colorado Sales/Use Tax Rates,
Instructions below and complete this return in its entirety. DR 1002 and in Revenue Online under "Additional Services" then
"View Sales Rates and Taxes".
Sales tax filers with two or more sites (locations) may file
by XML (Extensible Markup Language) or Excel spreadsheet Line 6. Excess tax collected
through Revenue Online. A list of XML approved software vendors Enter the amount of excess tax collected. For example: The tax
is available on the website Colorado.gov/Tax under Software rate decreased but tax was collected at the old rate on payments
Developers-Sales Tax XML. Use of the department's pre-approved made after the effective date of the new tax rate. Excess tax has
XML software does not require individual approval. For the Excel been collected and should be reported on this line.
spreadsheet, there is a template and handbook on the website. Line 8a. Service Fee Rate
Use of the Excel spreadsheet requires individual approval by Service fee rates are published in the Colorado Sales/Use Tax
the department before it can be used. For more information on Rates, DR 1002.

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                                     DR 0100 (07/31/17) 
                                     COLORADO DEPARTMENT OF REVENUE 
                                     Denver, CO 80261-0013 
*DO*NOT*SEND*                        Colorado.gov/Tax

Line 8b. Service Fee (Discount)                                           Before mailing your return verify that: 
A "discount" is given to vendors who timely file and pay their sales        All applicable lines are complete.
taxes. If your return and payment are postmarked and received               All three pages of the return are complete. Even if you 
timely, you can subtract the applicable service fee from your sales       have no deductions (page 2) or exemptions (page 3), 
tax due. Note: not all jurisdictions allow a service fee. Refer to the    these pages must accompany page 1 when you mail in 
DR 1002 for more information.                                             your return. Page 1 of the return continues onto page 2. 
Line 10: Tax on inventory usage
                                                                            The correct version of the sales tax form is used.
If your business takes out of its inventory goods that were purchased 
tax-free for resale and uses the goods for personal or business             The  account  number  and  site  number  are  entered 
purposes, you must pay sales tax on those items when they are             correctly on the return.
taken out of inventory and used. The cost of the items must be              The correct tax rates are used. See the DR 1002.
entered on line 10 of this form. Tax is due for state, RTD, CD, special   For a list of common filing errors you can avoid when filing your return, 
districts, county or state-collected city tax. Do not use this line to    see the Common Filing Errors document on the Taxation website. 
file/pay consumer use. Consumer Use Tax is reported on the DR 
0252 and DR 0251.                                                         PAYMENT INFORMATION
                                                                          Online Payments
Lines 12 and 13. Penalty and Interest
                                                                          • EFT Payment (No Fee)
If this return and remittance is postmarked or electronically made 
                                                                          Pay by electronic fund transfer (EFT) via ACH Debit or
after the due date, a penalty of 10% plus .5% per month (not to 
                                                                          Credit. EFT registration is required prior to making your
exceed 18%) is due. 
                                                                          payment. Payments cannot be made until 24-48 hours
Line 15. Total Amount Owed                                                after you register.
Enter  the  total  from  all  columns.  Check  for  mathematical  and 
transposition errors. Both the amount on the return and the amount        • Credit Card/E-Check
of the payment must match.                                                Pay by using a credit card or electronic check. There is
                                                                          an additional service fee for making a payment using
To  avoid  processing  delays,  complete  all  applicable  and 
                                                                          these methods.
required lines. Lines on the return can be left blank if the value is 
zero, except for lines 1, 3, 4, 5, 9, 10, and 11.                         Paper Check
Multi-Location Filers: A separate DR 0100 must be filed for each          • Online Filing with Payment Coupon
physical site or for each non-physical site that is collecting sales tax. You can print a payment coupon from Revenue Online after
All physical sites must file a return even if there were no sales. Verify you have filed your return electronically. Select ‚"Payment
your sites/locations in Revenue Online under "Additional Services".       Coupon"‚ in the Payment Option. You can print a coupon for
For additional information, refer to FYI Sales 58: Requirements for       each period.
Sales Tax Remittance for Multiple Location Companies.                     • Paper Filing with Payment
Deductions and Exemptions Schedules (Page 2, Part A and                   If  you  are  filing  and  paying  by  mail,  include  the  account
Page 3, Part B)                                                           number, filing period and write‚ "sales tax"   , on your check
                                                                          to ensure proper credit is applied to your account. One check
If deductions and exemptions are being claimed on lines 2b and 
                                                                          can be remitted for the total for all returns.
3b, the Deductions and Exemptions Schedules are required to 
be completed. If these schedules are missing, incomplete or               Sign and date the return and mail with your payment to:
incorrect, all deductions and exemptions will be disallowed.              Colorado Department of Revenue 
A separate schedule must be completed and submitted for each              Denver, CO 80261-0013
site/location.  For  more  information  on  allowed  deductions  and      Retain copies of all returns for your records. 
exemptions, refer to DR 1002. Additional information is available at      If you need further assistance, please call our Customer Contact 
the Taxation website under the Alpha Index letter "S" for Sales Tax.      Center at 303-238-7378.

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                                                  DR 0100 (07/31/17) 
                                                  COLORADO DEPARTMENT OF REVENUE 
                                                  Denver, CO 80261-0013 
*170100==19999*                                   Colorado.gov/Tax           Colorado Retail 
                                                                             Sales Tax Return 
                                                  with Deductions & Exemptions Schedules
Signature (Signed under penalty of perjury in the second degree).                                        Date (MM/DD/YY)

SSN 1                                       SSN 2                                      FEIN

Last Name or Business Name                                                   First Name

Address                                                           City       State     Zip               Phone

Colorado Account Number (XXXXXXXX-XXXX)     Period (MM/YY-MM/YY)       Location Juris Code (Refer to form DR 0800)   Due Date (MM/DD/YY)

                                                         –
                                      (1-1)
1.  Gross Sales and Services for                         Mark here if this is an Amended Return                      0021-102
  this site/location only. 
Subtractions
                               (2a-1)                                  (2b-1)
2a. Sales to licensed                       2b.Deductions         -                        2c. Total Deductions (add 
dealers.                                          Page 2, Part A.                              lines 2a & 2b.)
3. Net sales: Subtract line 2c        State              RTD/CD              Special District  County/MTS                  City/LID
from line 1:                   (3-1)              (3-2)                      (3-3)             (3-4)                 (3-5)
$ _____________________
Enter amount from above in 
each applicable column 
                               (3a-1)             (3a-2)                     (3a-3)            (3a-4)                (3a-5)

3a. Sales out of taxing area 
                               (3b-1)             (3b-2)                (3b-3)                 (3b-4)                (3b-5)
3b. Exemptions- 
Page 3, Part B. 
                               (3c-1)             (3c-2)                     (3c-3)            (3c-4)                (3c-5)
3c. Overpayment from 
previous return 
4. Net taxable sales (line 3 
minus lines 3a, 3b and 3c) 
                 Tax Rate
5. Amount of sales tax 
(multiply tax rate by line 4) 
                               (6-1)              (6-2)                      (6-3)             (6-4)                 (6-5)
6. Add: Excess tax 
collected 

7. Total (add lines 5 & 6) 

8. a. Service fee rate 
                               (8-1)              (8-2)                      (8-3)             (8-4)                 (8-5)
b. Service fee (discount) 
(multiply line 7 by line 8a).  
9. Sales tax due 
(line 7 minus line 8b)

                               Attention: Continue to pages 2 and 3 to complete your return.
                                                                       Page 1

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                                                                      DR 0100 (07/31/17) 
                                                                      COLORADO DEPARTMENT OF REVENUE 
                                                                      Denver, CO 80261-0013 
*170100==29999*                                                       Colorado.gov/Tax
 Colorado Account Number (XXXXXXXX-XXXX) Period (MM/YY-MM/YY)                                    Name
                                                                                    –
 Additions
10.                            State                                  RTD/CD                     Special District County/MTS            City/LID
Tax on                  (10-1)                                 (10-2)                            (10-3)           (10-4)          (10-5)
inventory 
usage     $
                        (11-1)                                 (11-2)                            (11-3)           (11-4)          (11-5)
11. Total tax due 
(add lines 9 & 10) 
                        (12-1)                                 (12-2)                            (12-3)           (12-4)          (12-5)

12. Penalty 
                        (13-1)                                 (13-2)                            (13-3)           (13-4)          (13-5)

13. Interest 
14. Total each tax 
(add lines 11, 12, & 13)
The State may convert your check to a one-time electronic banking transaction. 
State. If converted, your check will not be returned. If your check is rejected due 
Your bank account may be debited as early as the same day received by the           15.  Total Amount Owed Paid by EFT 
to insufficient or uncollected funds, the Department of Revenue may collect the      (add all columns 
payment amount directly from your bank account electronically.                       on line 14)                         (355)   $
 Deductions Schedule- Part A 
 This schedule is required for deductions claimed on line 2b, page 1.
                                                                                                                               (A1-1)

 1.  Service sales
                                                                                                                               (A2-1)

 2.  Sales to governmental agencies, religious or charitable organizations
                                                                                                                               (A3-1)

 3.  Sales of gasoline
                                                                                                                               (A4-1)

 4.  Sales of drugs by prescription and prosthetic devices
                                                                                                                               (A5-1)

 5.  Trade-ins for taxable resale
                                                                                                                               (A6-1)
 6.   Bad debts charged-off, returned goods, trade discounts and allowances where tax was paid  
    (cash discounts are not allowed)
                                                                                                                               (A7-1)

 7.  Cost of utilities, excluding tax. Restaurants must complete and attach form, DR 1465.
                                                                                                                               (A8-1)

 8.  Sales of agricultural compounds and pesticides
                                                                                                                               (A9-1)

 9.  Other Deductions, explanation required
 Explain

          Total add lines 1 through 9. Enter total deductions on line 2b, page 1.                                  Total
                                                                                     Page 2

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                                                   DR 0100 (07/31/17) 
                                                   COLORADO DEPARTMENT OF REVENUE 
                                                   Denver, CO 80261-0013 
*170100==39999*                                    Colorado.gov/Tax

Colorado Account Number (XXXXXXXX-XXXX)     Period (MM/YY-MM/YY)   Name
                                                   –

  Exemptions Schedule- Part B (Exemptions vary, refer to Colorado Sales/Use Tax Rates, DR 1002).
  This schedule is required for exemptions claimed on line 3b, page 1.
                                      State        RTD/CD          Special District County/MTS       City/LID
                               (B1-1)       (B1-2)               (B1-3)             (B1-4)     (B1-5)
1. Food, including food sold 
through vending machines
                               (B2-1)       (B2-2)               (B2-3)             (B2-4)     (B2-5)

2. Machinery
                               (B3-1)       (B3-2)               (B3-3)             (B3-4)     (B3-5)

3. Electricity
                               (B4-1)       (B4-2)               (B4-3)             (B4-4)     (B4-5)

4. Farm Equipment
                               (B5-1)       (B5-2)               (B5-3)             (B5-4)     (B5-5)
5. Sales of low-emitting 
vehicles, etc.
                               (B6-1)       (B6-2)               (B6-3)             (B6-4)     (B6-5)

6. School related sales
                               (B7-1)       (B7-2)               (B7-3)             (B7-4)     (B7-5)

7. Cigarettes                         N/A          N/A
                               (B8-1)       (B8-2)               (B8-3)             (B8-4)     (B8-5)
8. Renewable energy 
components
                               (B9-1)       (B9-2)               (B9-3)             (B9-4)     (B9-5)

9. Space Flight Exemption
                               (B0-1)       (B0-2)               (B0-3)             (B0-4)     (B0-5)
10. Other Exemptions, 
explanation required
Explain

11. Total: add lines 1 through 
10 of each column, enter total 
exemptions on line 3b, page 1.

                                                          Page 3

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