If you are not a DC resident and you had DC taxes withheld, you need to file form D-40B, Nonresident Request for Refund, to receive a refund of the taxes withheld.
You can also file form D-4A to claim exempt from DC withholdings if you are a nonresident.
Filing a Nonresident DC return within your account is easy! Log into your account and go to the State Section and create the Nonresident return. With just a few questions your return is created. We will include form D-40B and D-40WH (Withholding tax Schedule) with your nonresident return.