@ravello96 - If you were not a resident of DC in 2019, you do not need to file a DC tax return.
File DC Form D-40B in order to obtain a refund of the incorrectly withheld DC taxes. Here's a link:
https://otr.cfo.dc.gov/node/1450551
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
