@tkeirnan --
File DC Form D-40B to obtain a refund of the incorrectly withheld DC taxes. If you did not reside in DC in 2021, it is not necessary for you to file a DC tax return. You can download Form D-40B here:
https://otr.cfo.dc.gov/node/1576061
If you haven't done so already, advise your employer that you are a resident of VA and ask them to begin withholding taxes for VA and cease withholding for DC.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
