PDF document
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2021 

Government of the District of Columbia, 
Office of the Chief Financial Officer,      
Office of Tax and Revenue 

[SPECIFICATIONS FOR FILING 

 FORMS 1099/W-2G 

 ELECTRONICALLY  ]
 File formats and processing for electronic 1099/W-2G in the DC Taxpayer Portal 



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Version Control 

Version Number/Date                      Comments 
1.0 – 1/31/2022                          Initial Release for 2021 

This document is reissued every tax year and may be updated at any time to ensure 
that it contains the most current information.  The Version Control Log will indicate 
what has changed from the initial publication. 

Reminders: 

• The District of Columbia (DC) Office of Tax and Revenue (OTR) will no longer 
  accept CDs or any other media for filing the 1099/W-2G.  You must use the bulk 
  upload or online data entry via OTR’s tax portal, MyTax.DC.gov.
• More information about how to bulk file will be explained later in these 
  instructions.  The District of Columbia will continue to follow Internal Revenue 
  Service (IRS) Publication 1220 Tax Year 2021 (Rev.10-2021) specifications for 
  Forms 1097, 1098, 1099, 3921, 3922, 5498, and W-2G.

• The only 1099s that are accepted by the District of Columbia are:

  1099-B        1099-DIV 1099-G 109      9-INT      1099-NEC

  1099-MISC  1099-OID    1099-R  1099-K

• Filers are not required to submit test files.  The file format must conform to the 
  specifications found in Part C (Record Format Specifications and Record 
  Layouts) of Publication 1220.  PDFs will not be accepted.
• The District of Columbia no longer participates in the Combined
  Federal/State Filing Program (CF/SF).
• The submission due date of informational statements is
               January 31st of each year
• Employers must file electronically if the number of forms is 25 or greater.  If the 
  number of forms is 24 or fewer, then employers may file electronically using our 
  online manual data entry application.  reference the "DC Income Tax 
  Withholding Statements Electronic Submission Temporary Act of 2021."

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• Please ensure that your data file is in a .txt or .zip format.
• If you use a reporting representative to submit your file, you are responsible for
  the accuracy of the file.
• Copies of federal Form 1099 must be submitted to report income of $600 or
  more, or other payments subject to DC withholding, other than salaries or wages
  subject to withholding, paid to a DC resident individual in any calendar year.
• Dividends, endowment gains and other taxable income of $600 or more are
  required to be reported unless excluded by regulations.

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Table of Contents 
General Information......................................................................................................... 4 

Filing ................................................................................................................................ 4 

Electronic Filing ............................................................................................................ 4 

Paper ........................................................................................................................... 4 

Filing Options .................................................................................................................. 4 

Option 1 – Manual Online Entry (Small Business) .................................................... 4 

Option 2 – Bulk File Submission (Larger Businesses) .............................................. 4 

Option 3 – Multiple Employer Submissions (Third Party Bulk Filers) ........................ 5 

1099/W-2G Data Requirements and File Acceptance ..................................................... 5 

Employer/Employee Record Information ......................................................................... 5 

Submitter’s Information ................................................................................................... 5 

Record Length .......................................................................................................... 5 

‘T’ Transmitter Record .............................................................................................. 5 

‘A’ Payer Record ....................................................................................................... 5 

‘B’ Payee Record ...................................................................................................... 5 

‘C’ Summary of B Records ....................................................................................... 6 

‘K’ Record ................................................................................................................. 6 

‘F’ End of Transmission Record ................................................................................ 6 

Upload File Specifications ............................................................................................... 6 

Payroll Provider Registration ........................................................................................... 6 

Adding Additional Logons ................................................................................................ 9 

W-2/1099 Bulk Upload .................................................................................................. 11 

Manual submission of W-2 or W-2C .............................................................................. 13 

Editing records before submission of file ................................................................... 14 

File Status .................................................................................................................. 14 

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General Information 
Below are the instructions for filing the 1099 or W-2G information returns to OTR via 
electronic filing using the IRS specifications for filing information returns electronically, 
and your reporting requirement is 25 or more information returns.  

Visit IRS.gov  for IRS Publication 1220 specifications. 

DO NOT send paper or PDFs of 1099s or W-2Gs if you have submitted your file(s) 
electronically.  These are for your records. 

All submitters are required to create a logon ID through MyTax.DC.gov, whether you are 
an employer, payroll provider, preparer, or enrolled agent.  For assistance with 
obtaining a logon ID or authorizing a third-party to submit the 1099/W-2G, please review 
the tutorials/FAQs on the web portal.  Instructions are also included in this guide. 

Filing 

Electronic Filing 
Filing 25 or more information returns must be done electronically online via the web 
portal, MyTax.DC.gov.  

Paper 
Small business filing fewer than 25 information returns can file electronically using 
OTR’s online manual data entry application or file upload method.    

Filing Options 

Option 1 – Manual Online Entry (Small Business) 
Filing 24 or fewer 1099/W-2G? It's easy to file electronically with online data entry. This 
option is available for small business employers or preparers and allows the preparation 
and submission of up to 25 1099/W-2G per report over a secure internet service 

Option 2 – Bulk File Submission (Larger Businesses) 
Filing 25 or more 1099/W-2Gs or using third-party bulk filing? It's easy to file 
electronically with “1099 File Upload.” This electronic filing option is available for larger 
businesses and third-party bulk filers.  Using approved software that generates the 
correct 1099 record format specifications, the bulk file submission allows an 
employer/payroll provider or others to electronically submit their 1099/W-2Gs.  To find a 
provider, search for “Form 1099 Software Providers.”  OTR does not provide approval 
for these vendors. 

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Option 3 – Multiple Employer Submissions (Third Party Bulk Filers) 
This is the same process as option 1, with the difference being that a third-party can 
submit files containing multiple employers. The mechanics of submitting these multi-
employer bulk submissions is the same as the Bulk File Submission. 

1099/W-2G Data Requirements and File Acceptance 
Please refer to the IRS handbook to obtain additional information regarding data 
requirements and file acceptance to eliminate file rejection due to errors. Listed below 
are the 1099/W-2G record requirements for file creation of records to be submitted to 
the OTR:  

• T – Transmitter Record (required)
• A – Payer (required)
• B – Payee (required)
• C – Summary of Payee “B” Records (required)
• K - State Totals for CF/SF (optional)
• F – End of Transmission (required)

Employer/Employee Record Information 

Submitter’s Information 

Record Length 
All employer records must adhere to the required record length for both 1099 and W-2G 
as follows: 750 positions. 

Each record must terminate with a carriage return at the end of each row. 

‘T’ Transmitter Record 
It is imperative that the required Publication 1220 ‘T’ Record be entered in the 
designated positions. Failure to include correct and complete transmitter contact 
information may result in OTR rejecting your file submission. 

‘A’ Payer Record 
Identifies the person making payments.  The payer is responsible for the completeness, 
accuracy, and timely submission of electronic files.  Enter a blank in position 6 as DC is 
no longer a participant in the CF/SF Program. 

‘B’ Payee Record 
Do not use decimal points (.) to indicate dollars and cents.  Only enter the payment year 
(2018) in position 2-5. 

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Positions 723-734, State Income Tax Withheld, the amount must be entered, right 
justified and unused positions must be zero filled even though the IRS defines 
this field as optional. 

‘C’ Summary of B Records 
Report the total number of payees and the totals of the payment amount fields for each 
payer and/or return.  The ‘C’ record must follow the last ‘B’ record for each type of return 
for each payer. 

‘K’ Record 
The ‘K’ Record is optional. 

‘F’ End of Transmission Record  
Summary of the entire file. It is written after the last ‘C’ record (or last ‘K’ record, where 
applicable) of the entire file. 

Upload File Specifications  
Files must be in the format .txt or .zip.  Any files submitted that are 200MB 
(uncompressed) or larger will be rejected.   

The maximum number of file attachments (less than 200MB) per file type is five (5). 

For example: 
File 1: 8.50 MB 
File 2: 90 MB 
File 3: 60 MB 

More than five attachments can be submitted in an additional request. 

o           

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Sign-up for MyTax.DC.gov/Payroll Provider Registration
In order to bulk file the W 2/- 1099 you must have a MyTax.DC.gov web logon to access 
electronic bulk filing option. The individual completing the registration will become the 
Administrator for all accounts associated with the Taxpayer Identification Number (TIN). 
Do not use an invalid TIN when registering.  

You can review the tutorial at 
https://otr.cfo.dc.gov/sites/default/files/dc/sites/otr/publication/attachments/
How_to_Sign_Up_for_MyTax.DC_.gov_Businesses_1220.pdf that contains the information
for nexus and non-nexus business entities to access the secure web portal. 

Adding Additional Logons
After you or the account administrator has successfully logged into the account, you can add 
additional logons. 
1. Select Manage My Profile in the upper left block of the page.

2. Select More in the menu bar.

3. Select Add an additional logon.

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4. At the Create a Logon for Someone Else page, enter a Logon, Name, and Email. For Type of
   Access, select Standard User.

5. At the Account Access page, select the Grant Access checkbox for each Account the user should
   access.

   6. Repeat as needed for additional users.
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W-2/1099 Bulk Upload

• Select ‘Upload bulk submissions’
• Step 1: Company Name
• Step 2: Contact information
  o Submitter and contact information needs to be the individual or company
    submitting the electronic 1099s/W-2Gs.
• If the previous option was ‘Upload Bulk Submission’ then the next step will be
  attaching the bulk submissions to the Electronic Submission request.
• From here, a pop-up screen will appear titled “Select a file to attach”
• Select your file(s) by clicking on ‘Add Attachment.’  Include the type of file
  submission and a description and save.
• Type: Tells the Portal that this is a W-2 or a 1099 bulk submission file
• Description: A free format text field that will distinguish between the attachments
• Example: 2021 Bulk Submission for DC Bagel
• Choose File: A navigation dialog to point to the file on the local machine

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•    If there are any errors, a list will automatically be displayed.  You must correct the
     errors and resubmit the attachment.

Common Errors 

           Validation                             Error 
Empty File                           The File Contains No Records: "FileName" 
File beginning with incorrect record File does not start with a correct identifier or is 
type                                 empty 
Submitter FEIN                       Invalid FEIN: "FieldValue" 
Employee SSN                         Invalid SSN: "FieldValue" 
Tax Year                             Invalid year: "FieldValue" 
State Taxable Wages                  This is a required field. Invalid value: 
                                     "FieldValue" 

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Recommendation 

Use a text editor, such as Notepad++, to verify that the length of each line follows the 
requirements (W-2: 512   1099: 750) Look for extra spaces at the end of a record or an 
extra blank line added to the end of the final record.  

•   If the file validation is successful, you will see the following:

Note: The submission can be paused at any time by clicking the ‘Save and Finish Later’ 
button at the bottom left-hand corner of the screen.  By pressing this, the portal will save 
the submission without submitting it, allowing the user to finish the submission later. 

Manual Submission of 1099/W-2G  
If the option chosen was ‘Manually key individual forms’, verify the information is 
correct, as this will be automatically pulled into each individually keyed 1099/W-2G.

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Form Submission 
Determine which type of form will be submitted or removed from the electronic 
submission 

After selecting the form type, a ‘List’ screen will pop up and allow the user to manually 
enter the forms by selecting the ‘Add new <Form>’ on the left of the window or on the 
top right of the list. 

Editing Records Before Submission of File 
• Editing an Online Data Entry file is easy; go to the 1099 Data Entry page and
  follow the steps listed below.
• To update the submitter and/or employer information, click on the link
  corresponding to the information you wish to update.
• To update the employee information, click on the ‘Update’ link corresponding to
  the employee record you wish to update.
• To delete employee information, click on the ‘Delete’ link corresponding to the
  employee record you wish to delete.

File Status 
The status of your 1099 submission will appear on the Submission History page. The 
statuses may be as follows:  

• PENDING – A request was submitted, but the system has not yet picked it up for
  processing.  At this stage, the request can be deleted.
• PROCESSING – A request was submitted, and the system is processing the file.
  No changes can be made at this stage.
• COMPLETED – The system has successfully processed the file.  No changes
  can be made at this stage.
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DELETED – The request has been withdrawn by the submitter.  No changes can
  be made at this stage.
• NOT SUBMITTED – A request is in progress and has not yet been submitted.  At
  this stage, the request can be either edited or deleted.

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