OK,here's the situation for you, since you lived as a resident in DC all year.
DC and MD have a reciprocal tax agreement, whereby DC residents working W2 jobs in MD will only owe/pay DC taxes. Conversely, MD residents working a W2 job in DC will only owe/pay MD taxes.
As such, you owe MD nothing on your wages for working there.....and your W-2, properly, does show no MD withholding.
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Problem I see is that your W-2 has a MD listed line (Box 15 correct?) with MD wages in box 16...and (my opinion) that shouldn't be on your W-2 at all...only a DC wages line for boxes 15,16,17.
Presuming you filed a MD form MW507 with the MD employer declaring yourself a DC resident, You shouldn't have to file a MD tax return at all for that job, but your first step would be to go to your employer payroll people and see if they will issue a corrected W-2 (called a W-2c) showing only DC wages in the state line. Then file your DC tax return when you receive that W-2C
(and you do not indicate that you worked in another state on the My Info page....all that income is treated as-if you only worked in DC)
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If they won't prepare a W-2C, it's tough to know exactly how to proceed.
Options:
1) File a Federal and DC tax return, ignoring the MD line altogether (not putting MD line in the software W-2 form)...and suspecting MD will ignore any form they get from the employer...knowing or realizing you are a DC resident.
or
2) Filing a MD non-resident tax return anyhow, but declaring zero MD income, and no taxes due since you are a DC resident. (normally, this is only done by DC residents if they happened to have MD taxes withheld by accident).
or
3) seek local professional help for this issue.
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Personally, if I couldn't get a W-2c from the employer with the MD line taken out...I'd go with option #1, then if MD ever comes back with questions about not filing...I'd let them know I was a full year DC resident that year, with saved proof...like rent agreement copies, or utility bills for the year...or property tax forms for residence(s) there.
But that's just me.
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Perhaps someone here in the Forum knows better.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
