@trinhtla
It is unlikely you can do all states as part-year Residents.
IF the move/work in NY is intended to be permanent for at least 6 mos.
Then...on the My Info page....she should indicate she "moved", from CO to NY on the date she arrived in NY to work.
Then indicate she also worked in DC.
Thus, there will be part-year CO and NY tax returns to fill out, along with a DC non-resident tax return for the short time she worked in DC.
Yep...it will be messy.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
