...........but, 100%credit ?....perhaps not. DC would allow a credit of "up-to" what DC would have charged for the same income. So if NY is taxing at 6.2% and DC is taxing at 4%, DC would only allow a 4% credit.
But that really depends on what the total double-taxed portion of your income is, because DC and NY have progressive rates: NY is 6.21% to 8.82%, and DC is 4% to 8.5% over differing income ranges.....which is why the software is needed to puzzle it all out.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
