The Thrift Savings Plan website has a variety of helpful online calculators for federal employees. The TSP calculators can assist in estimating the growth of contributions, assessing tax treatment, determining retirement income from withdrawals, and estimating loan payments.
How Much Will My Savings Grow?
Estimate the growth of your TSP account by calculating the growth of your future contributions and/or the growth of the money already in your account.
Each year the IRS determines the maximum amount you can contribute to tax-deferred savings plans like the TSP. This is known as the IRS elective deferral limit. Participants should use this calculator to determine the specific dollar amount to be deducted each pay period in order to maximize your contributions and, if you are a FERS employee, to ensure that you do not miss out on Agency Matching Contributions.
Use this calculator to estimate how a contribution to your TSP account will affect your take-home pay and your account savings over time. You may also want to use the Contribution Comparison Calculator to determine which type of contributions (traditional and/or Roth) will best suit your retirement goals.
Contribution Comparison Calculator
The Contribution Comparison Calculator helps you assess how the tax treatment choice you make for your employee contributions affects your paycheck. With Roth TSP contributions, you make contributions with after-tax income by paying taxes up front. During retirement, you receive qualified Roth distributions tax-free. The traditional TSP lets you make contributions before taxes are taken out of your income and then pay taxes on withdrawals.
The Contribution Comparison Calculator provides a side-by-side comparison of traditional and Roth contributions to help you assess whether Roth TSP might be right for you. Keep in mind you may choose to contribute all, some, or none of your contributions to the Roth TSP. If contributing to both Roth and traditional balances within your TSP account, your combined contributions cannot exceed the elective deferral limit.
TSP Payment and Annuity Calculator
If you want monthly income from your TSP account when you separate from federal service, you have two options: TSP monthly payments and a life annuity
This TSP calculator will help you decide whether receiving monthly income is right for you by comparing the available options and features that might meet your needs. (If you are currently receiving TSP monthly payments and you want to do some calculations to choose a different payment amount, use the Monthly Payment Calculator listed below.)
TSP Installment Payment Calculator
If you are currently receiving monthly payments and want to choose a different amount, use this calculator to estimate how many payments you will receive and how long they will last.
If you are interested in comparing all of the TSP monthly income options (including TSP monthly payments and life annuities), use the Retirement Income Calculator listed above.
The TSP Loan Calculator estimates loan payments based on the amount you want to borrow from your TSP account, the current loan interest rate, and other factors. To borrow from your TSP account, you must be a federal employee in pay status. If you qualify for a TSP loan, the maximum amount you may be eligible to borrow is $50,000; the minimum amount is $1,000.