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Maryland W2 E-File Requirements & EFW2 Text Format | MD W2 Bulk Upload

Maryland W2 Electronic Filing Common Questions and Answers

Does Maryland mandate filing W-2s electronically?

As a Maryland employer you are only required to file electronically when you have 25 or more W2 forms. You will need to check with the state annually, since this threshold is subject to change.

What is the name of the publication that defines Maryland W2 E-Filing format and details?

Refer to "Maryland Employer Reporting of W-2s Instructions and Specifications".

What software can I use to generate Maryland W2 E-File submissions?

You can use our W2 Mate software to create W2 E-File submissions that comply with Maryland requirements. To learn more about W2 Mate and download a demo you can visit

https://www.realtaxtools.com/W2-Mate.html

Can I mail my W2 E-File submission on a CD or other formats of magnetic media to Maryland?

Maryland accepts EFW2 formatted magnetic media submissions by 3" inch diskette or CD.

Does Maryland follow the EFW2 format defined by the SSA?

Yes, Maryland follows the "Specifications for Filing Forms W-2 (EFW2)" as defined by the SSA, but the state also has its own special requirements.

How can I submit the Comptroller of Maryland -EFW2 (W2 E-File) Withholding file attachment to Maryland?

The "W2 Bulk Upload Application" allows the user to log on to the bFile system https://interactive.marylandtaxes.gov/bServices/OSC/Pages/Login.aspx and upload an EFW2 formatted file.

Do you need to include the RV (State Total) record as part of the Maryland W2 E-File Submission?

Yes, this record is mandatory and has to be included.

The RV record MW508 field "NAICS Code" must be 6- digit numeric code.

What is a NAICS code?

In the "RV" record, the NAICS code (Business Activity Code) field position 333-338 is a required 6 digit field (included on the paper MW508 for tax year 2017). Blanks in these positions will cause your file to be rejected. The North American Industry Classification System (NAICS) is the standard used by federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.

Do you need to include the RS (State Wage) records as part of the Maryland W2 E-File Submission? Yes, this record is mandatory and has to be included.

Does Maryland have a special file naming convention for W2 E-File submissions?

No, the state does not have any special requirements; however it's a good idea to have the company name included in the file name and to have .txt as the file extension.

Is the Maryland W2 Electronic Filing submission attachment an ASCII text file?

Yes, the submission is a text file that follows the specifications of both the SSA EFW2 format and the Maryland requirements defined by "Maryland Employer Reporting of W-2s Instructions and Specifications".

Does Maryland have any requirements for money fields?

Money fields must contain only numbers. No punctuation. Include both dollars and cents with the decimal point assumed (example: $89.70 = 000008970). Right-justify and zero fill to the left. Any money field that has no amount to be reported must be filled with zeros, not blanks.

Does Maryland have any requirements for Social Security Number (SSN)?

Use the number shown on the original/replacement SSN card. If there is no SSN available for the employee, enter zeros (0) in positions 10 - 18 of the RS Record.

How do I know if my submission was successful?

The W2 Bulk Upload Application will automatically validate the data in the file. A confirmation number will be assigned once the file is uploaded. After bulk uploading your file, you must return to view your submission history 20-60 minutes later to get official validation feedback.

How do I contact Maryland with questions about my W2 E-File submission?

Call (410) 260-7150 or email: efil@comp.state.md.us

The electronic filing engine available inside our W2 Mate® software gives Maryland employers and tax professionals the ability to e-File W2s with both the state of Maryland and the Social Security Administration’s (SSA). To learn more about W2 Mate visit https://www.realtaxtools.com/W2-Mate.html , email sales@realtaxtools.com or call 1-800-507-1992. 

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