While I was contributing to my 403B in NJ during my working career, I paid NJ tax on those contributions and they were not included in my Federal income total. Now I live in MA and am starting to take distributions from the 403B. I understand all distributions from this account is subject to federal tax but, regarding state taxes, do I need to pay state taxes to MA for the total distribution or, can it be reduced by a formula taking into account contributions that have already been taxed by a state (in this case, NJ)?
