The Annuity Calculator can help you estimate how much your monthly annuity payments would be if you have the TSP purchase an annuity for you with your account balance after you separate from service. The estimated results are rounded and displayed in whole dollars. In using the calculator, keep in mind that an annuity is only one of several TSP withdrawal options available to you after you separate from service.
Before you use the Annuity Calculator, read the booklet TSP Annuities so that you will understand the options and features that are available. You can get a copy of the booklet from your agency or service or from Forms & Publications. The TSP Annuities chapter in TSP Features (civilian or uniformed services) provides general information about TSP annuities.
Choose the kind of annuity you would like; then press the ENTER button.