Where can I find tax information about TSP disbursements?
For detailed information about withdrawing your account, see the booklet, Withdrawing Your TSP Account after Leaving Federal Service. For detailed information about the tax consequences of your withdrawal choices and Federal income tax withholding requirements, see the TSP tax notice, “Important Tax Information about Payments from your TSP Account.” The booklet and notice are available from the TSP Web site (www.tsp.gov). Also, your agency Human Resources Office must give you this information when you leave Federal service. You should also ask your State and local tax authorities about State and local taxes.