not sure what you are talking about. any state taxes paid on your 401K distribution would be an itemized deduction on Schedule A . the deduction for state taxes is limited to $10000
under a SCOTUS ruling, your pension can only be taxed by the resident state.
here's what happened. Taxpayer earned a pension while working for the State of California. retired to another state. pension payments were made to taxpayer while residing in the other state. Cal tried to taxed him. SCOTUS said no way.
problems do arise if no change of address is filed with the pension administrator. they use the address on file and would send a copy of the 1099-R to that state which then thinks you are a resident and sends you a bill.
if you are a part-year resident of two states the pension needs to be split based on when received and what is your resident state at the time.
if this is not your situation you'll need to clarify what happened.
