Federal Employee Financial Tools
TSP Loan Calculator
Estimate your Thrift Savings Plan (TSP) loan payments before you borrow. Use this TSP loan calculator to explore potential repayment amounts, interest costs, and the total you may repay over your selected loan term.
Whether you are considering a general-purpose loan or a residential loan, understanding the potential cost can help you make a more informed financial decision. Adjust your loan amount, repayment period, and other available inputs to compare estimates and see how different choices may affect your budget. You can also explore our TSP Catch-Up Contribution Calculator for another federal retirement planning tool.
Loan Planning Tool
Calculate Your TSP Loan Payments
Estimate your loan payment, total interest, and repayment cost. Enter your proposed loan details below and adjust the inputs to compare possible borrowing scenarios.
Your Estimated Results
Your estimates update as you change the loan details.
Enter your loan details to view your estimate.
This calculator provides a general fixed-rate loan estimate, not an official TSP quote or loan approval. It assumes the annual interest rate is divided by the selected number of payment periods and that equal payments are made over the term. Actual TSP rates, payment schedules, fees, loan eligibility, maximum amounts, and repayment rules may differ. Confirm current terms with the official Thrift Savings Plan before making a borrowing decision.
How TSP Loans, Payments, and Interest Work
A Thrift Savings Plan (TSP) loan allows eligible federal employees and members of the uniformed services to borrow from their TSP account and repay the loan under the plan’s rules. Before borrowing, it is important to understand the repayment schedule, applicable interest rate, fees, and how repayments may affect your budget.
A TSP loan calculator can help you estimate payments and compare potential borrowing scenarios. Enter a proposed loan amount, interest rate, and repayment term in the calculator above to see an illustrative payment and the total amount you may repay. Your actual payment schedule may differ from a standard loan calculation, so use the results for planning rather than as an official loan quote.
Important: A calculator estimate does not confirm that you qualify for a TSP loan or that your requested amount and repayment term meet current plan requirements.
What affects your TSP loan repayment?
- Loan amount: Borrowing more generally increases the amount you need to repay.
- Interest rate: The applicable rate affects the overall cost of borrowing. Confirm the current rate with the TSP.
- Repayment term: Spreading repayment over a longer period may reduce each payment while increasing the time required to repay the loan.
- Fees and deductions: Applicable loan fees and payroll repayment arrangements can affect your available cash and take-home pay.
General-purpose vs. residential TSP loans
TSP offers different loan types with different purposes and rules. A general-purpose loan can be used for a range of personal needs, while a residential loan is intended for qualifying purchases or construction of a primary residence. Eligibility requirements, permitted uses, documentation, and repayment terms can differ. Check the official TSP loan guidance before selecting a loan type.
Consider the impact on your retirement savings
Taking a loan from your retirement account can affect how much money remains invested while the loan is outstanding. Your repayments return money to your account under the plan’s rules, but the amount and timing of investment growth you might otherwise have received can differ. Consider your immediate borrowing needs alongside your long-term retirement goals before making a decision.
If you are also planning future retirement contributions, our TSP Catch-Up Contribution Calculator can help you explore contribution targets as part of your broader retirement plan.
This page provides educational estimates, not financial, tax, or legal advice. TSP rules, rates, fees, and eligibility requirements can change. Verify current details directly with the official Thrift Savings Plan before applying for a loan.
TSP Loan Calculator FAQs
Find answers to common questions about estimating TSP loan payments, interest costs, and repayment amounts.
How do I calculate my TSP loan payment?
Enter your estimated loan amount, annual interest rate, repayment term, and payment frequency in the calculator. The tool estimates your payment and total interest using a standard fixed-rate loan calculation. Your official TSP repayment schedule may differ.
How does the interest rate affect my TSP loan?
The interest rate affects how much you repay over the life of the loan. Changing the rate in the calculator lets you compare estimated payment amounts and total interest. Confirm the applicable rate and terms with the official Thrift Savings Plan before borrowing.
Can this calculator tell me how much I am eligible to borrow?
No. This calculator estimates repayments for the loan amount you enter; it does not verify your TSP account balance, eligibility, or maximum borrowing limit. Check the official TSP loan information and your account before deciding how much to borrow.
Can I use this for a residential or general-purpose TSP loan?
You can use it for a preliminary payment estimate for either type by entering your intended amount and assumptions. However, loan types may have different eligibility requirements, terms, and application rules. Verify the requirements for your specific loan with the official TSP.
Does taking a TSP loan affect my retirement savings?
It can. Borrowing from your retirement account may affect how much money remains invested and can grow over time. Consider the repayment commitment and potential long-term impact before applying.
Is the TSP loan payment estimate official?
No. This is an educational estimate based on the inputs you provide, not an official TSP quote or repayment schedule. Review current rules, rates, fees, and loan terms through the official Thrift Savings Plan before making a financial decision.
Plan Your Next Financial Step
Use this TSP loan calculator to explore estimated payments before making a decision. For broader retirement planning, compare your options with Ghaline’s other financial calculators and always verify loan details with official TSP resources.