Before you accelerate: the federal-loan checklist
Student loans are the one debt where faster isn't automatically better. If you're pursuing PSLF or on an income-driven plan headed for forgiveness, extra principal can be money donated to the servicer. If you're on the standard plan (or private loans) with no forgiveness path, the math is the ordinary amortization above and extras work beautifully — target the highest rate first (see snowball vs avalanche), keep the employer match and emergency fund ahead of acceleration, and confirm extras post as principal-only.
Frequently asked questions
How long will it take to pay off my student loans?
The federal standard plan is 120 months (10 years); your servicer sets the payment so the balance amortizes to zero. Enter your balance and rate above with a 120-month term to see the schedule — then add an extra amount to watch years disappear.
Do extra payments work on student loans?
Yes — federal and private student loans have no prepayment penalties. One caution: instruct your servicer to apply extras to the CURRENT loan’s principal, not as an early next payment ("pay ahead" status), and target the highest-rate loan in your group first.
Should I pay off student loans early or invest?
Compare the loan rate to expected after-tax returns. At 4–5% federal rates the case for investing (or just capturing an employer 401(k) match first) is strong; at 7–9% (grad/private), prepayment is a solid guaranteed return. Also weigh federal protections you give up by rushing: income-driven plans and potential forgiveness.
Does this calculator work for income-driven repayment (IDR)?
Not directly — IDR payments track your income, not amortization, and remaining balances may be forgiven after 20–25 years. This tool models fixed-payment plans (standard/private/refinanced). If you’re on IDR and aiming for forgiveness, extra payments may even be counterproductive; check your plan first.
Should I refinance student loans?
Private refinancing can cut the rate for strong credit — but refinancing FEDERAL loans forfeits IDR, deferment, and forgiveness permanently. Refinance private loans freely; refinance federal only if you’re certain you won’t need the safety net.
Which loan should I pay first with multiple student loans?
Highest rate first (avalanche) saves the most; smallest first (snowball) motivates. Run the comparison with your real loans in the debt snowball calculator.
Related calculators
- Loan Payoff Calculator — See how extra payments shorten your loan and how much interest you save.
- Debt Snowball Calculator — Compare the snowball and avalanche payoff methods side by side across all your debts.
- Personal Loan Calculator — Payment, total interest, and full schedule for any personal loan — plus early-payoff savings.
- Debt Consolidation Calculator — Your debts vs. a real loan offer at the same monthly budget — fees counted, longer-term tricks exposed.
Disclaimer: Educational purposes only — not financial advice. IDR/forgiveness rules change; verify with your servicer and studentaid.gov. See our Terms of Use.