I appreciate your reply, however, I did not ask about a 401(k). I asked about a federal TSP. Thrift savings plan. Federal TSP‘s are different than a 401(k). A 401(k), your rules apply that you just posted. A federal TSP in the state of New Jersey, all contributions to the TSP are not tax deferred. Therefore, in order to not be double taxed, when I take a withdrawal, there is a formula that you need to calculate to figure out how much of your TSP withdrawal is taxable in the state of New Jersey. I have that information, however, I have no Idea how to enter the data in TurboTax
