PDF document
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2021 

Maryland Employer

Reporting of 1099s 

Instructions and 

Specifications 

October 2021 

Revenue Administration Division 

Annapolis, MD 21411-0001 

Peter Franchot, Comptroller 



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Table of Contents 
 
Document Change Log .............................................................................................. 3 
Introduction ................................................................................................................. 3 
Filing Requirements for 1099 Reporting ........................................................... 3 
Upcoming Changes and Enhancements .............................................................. 4 
Annoucement  Last Year for filing via Disketts/CDs .................................... 4 
Media Specifications ................................................................................................. 5 
 Diskettes and CDs ............................................................................................................................5 
Updates for Tax Year 2021 ..................................................................................... 6 
Reminders for Tax Year 2021 ................................................................................ 6 
Most Common Errors to Avoid .............................................................................. 8 
Record Format Rules ................................................................................................ 9 
Maryland Record Layout Tax Year 2021 .......................................................... 10 
 “B” Record Modified for Maryland Reporting ................................................................. 10 
Frequently Asked Questions ................................................................................ 11 
 
                         2021 Maryland Employer Reporting of 1099 Instructions and Specifications, version 1.0 
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Document Change Log  
Date     Page            Description  

11/7/2021 page 3         •         Filing Deadline:  January 31, 2022 
                                    
         page 3 & 5      •         MD follows new IRS Form 1099-NEC requirements  
                                       
         page 4          •         Filing Year 2022 (for Tax Year 2021) is the last year 
                                   Maryland will be accepting magnetic media 
                                   (Diskettes/ CDs).   
                          
         pages 8         •         There are record layout changes for Tax Year 2021 for 
                                   the records field that state ‘Same as IRS’.  See. 
                                   Pulication 1220 for modifications. 
 
Introduction  
  
Maryland law requires employers to submit their annual Withholding Reconciliation 
using the magnetic media format if the total number of 1099 statements meet or exceed 
25.  We encourage all employers, regardless of the number of 1099s, to file using 
magnetic media.   
  
The filing due date for 1099  statements/MW508 return is January 31st        .  If the due 
date falls on a Saturday, Sunday or legal holiday, it must be filed by the next business day.   
 
The 2021 Maryland Reporting Instructions and Specifications Handbook for 1099s is 
designed to be used as a companion to the IRS Publication 1220 Specifications for 
Electronic Filing of Forms  1097, 1098, 1099, 3921, 3922, 5498, 8935  AND W-2G 
Tax Year 2021.  Since many functions of the Maryland employer-reporting program are 
similar to the IRS program, this handbook highlights the special requirements of the 
Maryland program.    
 
Filing Requirements for 1099 Reporting  
  
Filers having 25 or more 1099 statements must file magnetic media in the IRS format 
from Publication 1220 Specifications for Electronic Filing of Forms 1097, 1098, 1099, 
3921, 3922, 5498, 8935 AND W2-G. 
  
Maryland requires a 1099-G, 1099-R, 1099-S and W-2G for every Maryland payee who 
receives a payment of $10 or more during the tax year being reported. 
 
Note: Maryland only requires a 1099-MISC  and 1099-NEC from the payee (or 
employer) when there is Maryland withholding greater than zero. 
  
Failure to comply may result in a penalty of $100 for each violation.  Each 1099 that is not 
properly filed is a separate violation subject to the above penalty.  Failure to comply with 
Section 13-706 of the Tax-General Article, Annotated Code of Maryland may result in the 
assessing of additional penalties. 
 
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Upcoming Changes and Enhancements 
 
Maryland continues to participate in the Combined Federal/State Filing Program for 
Forms 1099. 
Note: Prior to your submission to Combined Federal/State Filing, the 1099 file must 
include the modified B record(s) containing the required Central Registration 
Number (CRN) in positions 715-722. 
 
1099 filers who do not participate in the Combined Federal/State  
Filing Program, should submit either their magnetic media file or paper returns with 
1099s directly to Maryland by January 31st, each year. 
 
Annoucement  Last Year for filing via Disketts/CDs 
 
Filing Year 2022 (for Tax Year 2021) is the last year Maryland will be accepting 
magnetic media (Diskettes/ CDs).  For Filing Year 2023 (Tax Year 2022), Maryland will 
require 1099 text files to be placed at the Comptroller of Maryland secure server by SFTP 
(Secure File Transfer Protocol), using one of the following two methods: 
• Option 1: Manually upload to Comptroller of Maryland SFTP website  
• Option 2: SFTP automated server to server transmission in which an IP address will 
  be required to be whitelisted with Comptroller, State of Maryland 
 
Please email   SecureTransmission@marylandtaxes.gov no later than October 2022 to obtain 
your SFTP 2023 Account info along with instructions for setup.  In the email, please 
provide the following:   
• Point of Contact Email address  
• Business Name 
• Point of Contact Name 
• Point of Contact Number 
• Business choice of (SFTP) either Option 1 or Option 2 or both 
                
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Media Specifications   
 
Diskettes and CDs   
 
The Maryland Revenue Administration Division uses the following criteria in acceptance 
of magnetic media:  
 
• Diskettes must  be  double-sided, double-density or high-density, MS-DOS version  or 
  compatible operating system. 
   
• All diskettes and CDs must be virus scanned before submission.   
 
• Only one file name is allowed.  The file name must be “IRSTAX” for 1099 data.  Do not 
  add an extension (e.g., “.dat”, “.bak”).   
    
• The external labels must have the company name, FEIN, the proper sequence (e.g., 
  VOL 2 of 3), and type of data (W-2 or 1099).  A contact number and name is necessary 
  if the disk arrives damaged. 
 
• Data must be uppercase letters in ASCII.   
 
• Inspect the file prior to placing on media to verify that each record type (T, A, B, C, K, 
  F) starts on a new row.   
 
• File should include record delimiters (CR- Carriage Return followed by LF  –Line 
  Feed).  Each record delimiter must consist of a carriage-return/linefeed (CR/LF) and 
  placed immediately following position 750. Do not place a record delimiter before the 
  first record (T) of the file.  
 
• Multiple companies can be submitted within one file. Be sure to repeat each set of 
  record types (T, A, B, C, K, F) in this sequence for each company. 
 
• Files may be compressed using PKZIP or WinZip.  Please indicate on the label if the file 
  is zipped and a contact name and number to retrieve the password 
   
• Maryland no longer accepts cartridges or tapes.    
 
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Updates for Tax Year 2021 
 
Starting in tax year 2021 and going forward, the IRS has removed reporting for 
nonemployee compensation from Form 1099-MISC, box 7 to Form 1099-NEC.   Maryland 
will follow the IRS guidelines for reporting of nonemployee compensation.  Information 
for submitting this information can be found online at https://www.irs.gov/pub/irs-
pdf/i1099mec.pdf or in the IRS Publication 1220.   
 
Please keep in mind that the following: 
 
Maryland only requires a 1099-MISC and 1099-NEC from the payee (or employer) 
when there is Maryland withholding greater than zero. 
 
Reminders for Tax Year 2021 
 
1. The filing due date for 1099 wage/tax statements is January 31 .st  
 
2. It is  a requirement to provide the Federal Employer Identification Number (FEIN) and 
   the corresponding Central Registration Number (CRN) in positions 715-722 of the B 
   record.  Not providing this information will either delay the processing time or will be 
   cause for the file to be rejected. 
 
3. Amounts reported on a paper Form MW508 are for paper submission only; if you are 
   providing additional information by media, exclude that which was reported on paper.  
   Duplicate filings create a bill, erroneous balance due notices and/or penalty notices 
   for the empoyer.   
 
4. If you outsource your payroll, please provide the  CORRECT Federal Employer 
   Identification Number (FEIN) and the Maryland Central Registration Number (CRN).   
    
5. The Comptroller of Maryland will only accept 3 ½-inch diskettes and CD submissions. 
 
6. Flash and thumb drives are not permitted.   
 
7. The Comptroller of Maryland requires a 1099-G, 1099-R, 1099-S, and a W-2G Form 
   for every Maryland payee that receives a payment of $10 or more during the tax year 
   being reported.  
        
8. Maryland only requires a 1099-MISC and 1099-NEC from the payee (or employer) 
   when there is Maryland withholding greater than zero.  
        
9. If the payer (employer, organization, etc.) should withhold state taxes that are 

                         2021 Maryland Employer Reporting of 1099 Instructions and Specifications, version 1.0 
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   reported on a 1099-MISC for Maryland payee(s), then the 1099-MISC should be 
   included in the payer's annual reconciliation for the tax year reported.  If there is no 
   1099-MISC Maryland withholding, then there is no need to submit this 1099-MISC 
   information to the state.  This is also true for the Form 1099-NEC. 
 
10. TheComptroller of Maryland is a participant in the IRS Combined Federal/State 
   Filing Program.  The following resources are available: 
       
   a. The IRS format from Publication 1220, Specifications for Electronic Filing of Forms 
      1097, 1098, 1099, 3921, 3922, 5498, 8935 and W-2G  
   b. The Magnetic Media Guide 1099 Instructions and Specifications,  
      Section: “B” Record Modified for Maryland Reporting 
       
11.  If you are participating in the Combined Federal/State filing program, do not 
   send paper or media with the same returns that are being reported to the IRS.  
   The IRS will forward the 1099 information to Maryland.  Additionally,  if the IRS 
   includes the 1099-NEC in the Combined Federal/State filing program, then Maryland will 
   accept the 1099-NEC from the IRS. 
    
12. Current and prior year data may be submitted in the same shipment however, each 
   tax year must be on separate media.    
    
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Most Common Errors to Avoid   
 
• Failure to include the “A ”record.   
 
• Failure  to  include  the  Federal  Employer  Identification  Number  (FEIN)  on  the                        “A” 
  record, position 12.  
 
• Failure to modify the B record to include the required Central Registration Number 
  (CRN) in positions 715-722 or failure to place the required Central Registration 
  Number in the correct location. 
 
• Failure to include the “C” record containing the MW508 information.  
 
• Using the Unemployment Insurance number instead of the Maryland Central 
  Registration number.  
 
• Using the FEIN instead of the Maryland Central Registration number.    
    
• Sending PDF, MSWord or Excel 1099 files on media. These are not acceptable 
  formats.  This will result in a failed submission and may cause erroneous balance due 
  notices and/or penalty notices.   
   
• Failure to include record delimiters (CR- Carriage Return followed by LF  –Line Feed).  
  Each record delimiter must consist of a carriage-return/linefeed (CR/LF) and placed 
  immediately following position 750.    
 
• Failure to verify each record type (T, A, B, C, K, F) starts on a new row. 
    
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Record Format Rules   
 
All  fields  in  the  record  layouts  are  required  and  must  follow  the  formatting  rules  as 
follows:   
 
Alpha fields (Alphabetic characters and blanks only)   
 
• Left-justify and fill with blanks.   
 
Numeric fields (Numeric characters only)   
 
• Right-justify and fill with zeroes.  
 
• Fill unused fields with zeroes.   
 
Alpha/numeric fields (Alphabetic, numeric and blanks are allowed)   
 
• Left-justify and fill with blanks.  
 
• Fill unused fields with blanks.   
 
Money fields   
 
• Must contain only numbers.  
 
• No punctuation.  
 
• No signed amounts (high-order signed or low-order signed).  
 
•  Include  both  dollars  and  cents  with  the  decimal  point  assumed  (example:  $59.60  = 
 000000005960).  
 
• Do not round to the nearest dollar (example: $5,500.99 = 000000550099).  
 
• Right-justify and zero fill to the left.  
 
• Any money field that has no amount to be reported must be filled with zeroes.   

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 Maryland Record Layout Tax Year 2021 
  
Attention:  There have been changes to the record layouts for tax year 2021 for the field 
position that are the same as IRS.  Please, review Publication 1220.  Only the addtional 
record, the 1099-NEC, entered with a separate code for fields 547-548 of the B record will 
change.  This can be found in IRS Pub 1220. 
 
The 2021 Maryland record layout is the only acceptable format for both current and back-
year tax magnetic media submissions.     
 
1099 Filers must include the required Central Registration Number in positions 715  
722 of the modified “B” record prior to submission of magnetic media to Comptroller, 
State of Maryland or file submission to IRS Combined Federal/State filing program. 
Note: Maryland only requires a 1099-MISC          and 1099-NEC from the payee (or 
employer) when there is Maryland withholding greater than zero. 
  
• Do not include more than one “IRSTAX     ” file per diskette or CD.   
 
• The required records are:  
  “T” Transmitter Record (Same as IRS)  
   “A” Payer Record (Same as IRS)  
   “B” Payee Record (Modified, record description below)  
   “C” End of Payer Record (Same as IRS)  
   “K” Use for Combined Federal/State Filing Program (Same as IRS)  
    “F ”End of File Record (Same as IRS)  
  
“B” Record Modified for Maryland Reporting  
      FIELD    FIELD NAME             FIELD  FIELD TYPE            FIELD DESCRIPTION 
  POSITION                            LENGTH 
     1-700     Same as IRS            700    ALPHA NUMERIC         Required. Same as IRS. 
   701-712     Maryland State Pickup  12     NUMERIC               For use by Maryland State 
                                                                   Retirement System. Right 
                                                                   justify and fill with zeros. 
   713-714     Filler                 2      ALPHA NUMERIC         Maryland does not use this 
                                                                   field. 
   715-722     Maryland Central       8      NUMERIC               Required. Eight-digit 
               Registration Number                                 Maryland Central 
                                                                   Registration Number (Tax 
                                                                   Withholding Account 
                                                                   Number) 
   723-734     Maryland State Income  12     NUMERIC               Required.  
               Tax Withheld                                        Total of state and local 
                                                                   taxes withheld must be 
                                                                   added together.  
                                                                   Do not report separately. 
                                                                   Right justify and fill with 
                                                                   zeroes 
   735-746     Filler                 12     ALPHA NUMERIC         Maryland does not use this 
                                                                   field. 
   747-748     Combined               2      NUMERIC               Constant “24” for Maryland. 
               Federal/State Code 
   749-750     Same as IRS            2      ALPHA NUMERIC         Required. Same as IRS. 
                                      750                                                                       

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Frequently Asked Questions     
 
What is the Maryland Central Registration number?   
 
The  Central  Registration  number  is  an  eight-digit  number  assigned by  Maryland  when 
you open a state withholding account.  
 
How can I confirm an employer’s Maryland Central Registration number?   
 
You may contact Taxpayer Service by telephone at 410-260-7980 from Central Maryland, 
or 1-800-638-2937; by e-mail at taxhelp@comp.state.md.us.  Be prepared to provide the 
following information: Federal Employer Identification Number (FEIN), name of 
company, as well as name and phone number of the person inquiring. 
 
Who can file paper information returns?   
 
Employers having less  than  25 1099s to  submit  may send a  paper Form MW508 with 
paper copies of the 1099s to:   
 
Revenue Administration Division  
ATTN: Returns Processing, Room 206   
110 Carroll Street  
Annapolis, MD 21411-0001    
 
Can I file my corrections on magnetic media?   
 
No, we cannot process corrected or amended 1099s and MW508s on magnetic media.  All 
corrected and amended 1099s and MW508s must be submitted on a paper MW508A to 
the address above.    
 
What if I file both paper returns and magnetic media?   
 
All paper 1099s not included on media must be submitted together in one package with 
the  media.  Also,  include  Form  MW508  showing  the  totals  of only  paper  1099Rs  and 
payment of balance due, if applicable. Do not duplicate information between media and 
paper. Please be sure your name, Federal Employer Identification Number, and Maryland 
Central  Registration  number  are  on  all  documents.  Send  the  package  to  the  following 
address:  
 
Revenue Administration Division  
Attn: Magnetic Media Unit, Room 214   
110 Carroll Street  
Annapolis, MD 21411-0001    
 
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Am I required to submit a test file?   
 
No, test files are not required, but are encouraged.  We do recommend and encourage 
filers to submit a test file on CD or diskette.  This will validate proper format and identify 
problems before the returned is filed, avoiding delays in processing.  Please clearly mark 
your media as “Test” and send to the address listed above. 
 
Is there a filing deadline?   
 
The filing deadline for submitting the MW508 return and 1099s is January 31st.  If the due 
date falls on a Saturday, Sunday or legal holiday, the statements must be filed the next 
business day.    
 
Can I file back-year data on magnetic media?   
 
Yes.  Maryland can process all back-year data submitted on magnetic media. All data must 
be presented in the current year format and the tax year must be properly entered in the 
“A” record.     
 
Do you return the media after you are done?   
 
No. Magnetic media becomes the property of the Revenue Administration Division and for 
security purposes it is destroyed after being successfully processed.   
 
How do I request a waiver of the Magnetic Media/Electronic filing requirement?  
 
To request a waiver of the minimum filing threshold, you should send a written request 
stating the nature of the hardship.  The request should be sent by mail to the address 
below.  You may prefer to email efil@comp.state.md.us or fax at 410 974-2274. 
 
Will  I  be  penalized  for  not  filing  electronically  or  by  magnetic  media  when 
required? 
 
Employers failing to file electronically (with 25 or more 1099s) may incur a penalty of 
$100  for  each  violation.  Each  1099  submitted  that  is  not  properly  filed  is  a  separate 
violation subject to the above penalty.  Failure to comply with Section 13-706 of the Tax 
General  Article,  Annotated  Code  of  Maryland  may  result  in  the  assessing  of  additional 
penalties. 
 
Where do we send the magnetic media?   
 
Revenue Administration Division  
ATTN: Magnetic Media Unit, Room 214   
110 Carroll Street  
Annapolis, MD 21411-0001   

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