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Student Loan Payoff Calculator

See your repayment timeline, total interest cost, and exactly how much extra payments save you. Works for federal and private student loans.

Federal repayment changed on 1 July 2026. SAVE was vacated by the courts in March 2026 and ended by statute; the Repayment Assistance Plan (RAP) replaced it. Forgiveness outside PSLF is taxable again. What changed and what it means for your payoff.

Your loan

$

US average federal student loan balance is ~$37,000.

%
Common:
months
$

Any extra payment goes 100% to principal — accelerating payoff dramatically.

Monthly payment

$420

$420 standard + $0 extra

Loan balance
$37,000
Total interest
$13,400
Total paid$50,400
Payoff date

Amortization schedule

Month-by-month payment breakdown with extra payments applied to principal.

#PaymentPrincipalInterestBalance

How this calculator works

Student loans are standard amortizing loans — you pay equal monthly amounts over a fixed term, with each payment splitting between interest on the remaining balance and principal reduction. The calculator uses the standard amortization formula to compute your minimum monthly payment, then simulates the schedule month by month.

Extra payments are handled correctly: any amount above your minimum monthly payment is applied 100% to principal, reducing the balance faster and saving interest in every subsequent month. There are no prepayment penalties on federal student loans or virtually any private student loans, so every extra dollar accelerates payoff with no downside.

Worked example

You have a $37,000 federal student loan at 6.5% APR on a standard 10-year (120-month) plan.

  • Required monthly payment: $420.27
  • Total paid over 10 years: $50,432
  • Total interest cost: $13,432

Now add $100/month extra ($520 total monthly). The loan pays off in about 96 months instead of 120 — 2 years sooner — and total interest drops to roughly $10,600, saving you about $2,800. Add $200/month extra and you finish in 80 months with $8,800 in total interest, saving $4,600. The math gets dramatic quickly: extra principal payments compound their benefit because they reduce the balance that future interest is calculated on.

What changed for federal student loans in 2026

This is the largest restructuring of federal repayment in years, and it changes the arithmetic behind every payoff decision on this page. Four things matter.

  • SAVE is gone. A federal court vacated the plan on 10 March 2026 and the One Big Beautiful Bill Act ended it by statute. Enrolled borrowers were notified from 1 July 2026 and given 90 days to choose a new plan. Anyone who did not choose was moved to Standard or Tiered Standard, which usually means a higher payment.
  • RAP replaced it. The Repayment Assistance Plan launched 1 July 2026: 1–10% of adjusted gross income by tier, a $10 monthly minimum, forgiveness after 30 years, and an interest subsidy that prevents your balance growing when the payment does not cover accruing interest.
  • Forgiveness is taxable again. The American Rescue Plan Act exemption expired on 31 December 2025. Income-driven forgiveness received from 2026 onward may be taxed as federal income, with state treatment varying. PSLF stays tax-free.
  • Borrowing limits tightened. Graduate PLUS loans are eliminated. Parent PLUS is capped at $20,000 a year and $65,000 lifetime per student, and the consolidation window that let Parent PLUS borrowers reach income-driven repayment closed on 30 June 2026.

Why this pushes toward paying early. Under SAVE, holding a balance on income-driven repayment was often the rational choice — low payments, forgiveness in 20 to 25 years, and no tax at the end. Under RAP the wait is 30 years and the forgiven amount is taxable. For borrowers who can afford more than the minimum, the case for clearing the balance is considerably stronger than it was two years ago.

Which repayment plans you can still use

Your options depend on one date: whether any of your loans were disbursed on or after 1 July 2026.

PlanForgivenessAvailable to
RAP30 yearsEveryone. The only income-driven plan for loans taken from 1 July 2026
IBR20 years (new) / 25 (old)Borrowers with pre-July 2026 loans only. Hardship requirement removed
PAYE20 yearsPre-July 2026 loans, until it sunsets 1 July 2028
ICR25 yearsPre-July 2026 loans, until it sunsets 1 July 2028
Tiered StandardNoneEveryone. Fixed 10, 15, 20 or 25-year term set by balance
SAVEEnded March 2026

Forgiveness credit carries between income-driven plans, so qualifying payments already made count wherever you move. PSLF remains available on any IDR plan after 120 qualifying payments in public service, and remains tax-free.

This calculator models a fixed amortising payment — Standard, Tiered Standard, Extended, or a private loan. Income-driven payments recalculate annually against your income, so they cannot be projected from a balance and rate alone. Use the figures here as your payoff-in-full baseline, then compare against what your servicer quotes under an income-driven plan.

Making extra payments count

Extra money only accelerates payoff if it reaches principal. Three things determine whether it does.

  • Instruct the servicer explicitly. Unallocated extra payments are commonly applied to future scheduled payments — which advances your due date and does nothing for your balance. Tell the servicer in writing to apply overpayments to principal, and check the next statement to confirm they did.
  • Target the highest rate first. With several loans at different rates, extra payments belong on the highest-rate loan. A servicer left to its own devices usually spreads them proportionally across all loans, which costs you money.
  • Watch what you give up. On federal loans, aggressive prepayment does not buy back protections. If your income is unstable, the flexibility of a lower required payment may be worth more than the interest saved.

Set the extra payment field above to see the effect on your own numbers — the amortisation schedule applies every extra dollar to principal and recalculates from there.

Common questions

What happened to the SAVE plan?

SAVE is gone. A federal court vacated the plan on 10 March 2026, and the One Big Beautiful Bill Act eliminated it by statute. Borrowers who were enrolled began receiving servicer notifications from 1 July 2026 with a 90-day window to choose a different plan. Anyone who does not choose is moved automatically to the Standard or new Tiered Standard plan, which generally carry higher payments than income-driven repayment. If you were on SAVE and are pursuing Public Service Loan Forgiveness, you must switch to another IDR plan to stay eligible.

What is the RAP repayment plan?

The Repayment Assistance Plan launched on 1 July 2026 and replaces SAVE as the main income-driven option. Payments run from 1% to 10% of adjusted gross income depending on income tier, with a $10 monthly minimum. Forgiveness comes after 30 years — longer than any plan it replaced. Its distinguishing feature is an interest subsidy that stops your balance growing when your payment does not cover accruing interest, which was the main complaint about older IDR plans.

Is student loan forgiveness taxable now?

For non-PSLF forgiveness, yes. The American Rescue Plan Act exemption that made forgiven balances tax-free expired on 31 December 2025 and was not extended. Anyone receiving income-driven repayment forgiveness from 2026 onward may owe federal income tax on the forgiven amount, and state treatment varies. Public Service Loan Forgiveness remains tax-free. This matters enormously for planning: 30 years of RAP payments followed by a taxable forgiveness event is a very different outcome from what SAVE promised.

Which repayment plans still exist?

It depends on when you borrowed. If all your loans were disbursed before 1 July 2026, you can still use IBR, and PAYE and ICR until they sunset on 1 July 2028, after which IBR and RAP are the only income-driven options. If you take out any new federal loan on or after 1 July 2026, your only choices for all your loans are RAP and the new Tiered Standard plan. One piece of good news: forgiveness credit carries across plans, so qualifying payments you have already made count wherever you move.

Should I pay off student loans early?

Compare your loan APR against what the money would earn elsewhere. At 4–5% the arithmetic often favours investing; at 7% or above, paying early is close to a guaranteed return at that rate and usually wins on a risk-adjusted basis. Two rules hold regardless: never miss the minimum, and never give up an employer retirement match to pay loans faster — that match is an immediate 50–100% return no loan rate matches. Also weigh what you would give up: extra payments on federal loans do not buy back the protections you keep by staying enrolled.

How much does an extra $100 a month save?

On a $37,000 balance at 6.5% with the standard 10-year payment of about $420, adding $100 a month clears the loan in roughly 96 months instead of 120 and saves about $2,800 in interest. At $200 a month extra it finishes in about 80 months and saves roughly $4,600. The effect compounds because every extra dollar of principal removes the interest that dollar would have generated for the rest of the term. There is no prepayment penalty on federal loans or on virtually any private loan.

What is Public Service Loan Forgiveness?

PSLF cancels the remaining balance on federal Direct Loans after 120 qualifying monthly payments — ten years — while working full-time for a government body or a qualifying 501(c)(3) nonprofit. It is one of the few forms of forgiveness that remains tax-free. Most borrowers need to be on an income-driven plan for the payments to count, which is why former SAVE enrollees pursuing PSLF had to move to another IDR plan. Recertify employment annually rather than at the end.

How have federal borrowing limits changed?

Substantially. Graduate PLUS loans have been eliminated, so graduate and professional students now face strict borrowing caps. Parent PLUS is capped at $20,000 per year and $65,000 lifetime per student. The window to consolidate Parent PLUS loans in order to reach an income-driven plan closed on 30 June 2026, leaving those borrowers with the Standard, Extended, Graduated or Tiered Standard plans and no income-driven path. If you are modelling costs for a degree not yet started, these caps change what is borrowable.

Federal or private — what actually differs?

Federal loans carry fixed rates, income-driven repayment, deferment and forbearance protections, and access to PSLF. Private loans have stricter terms, few protections, and credit-based pricing that often needs a cosigner. The only real reason to choose private is a materially lower rate with strong credit. Refinancing federal into private surrenders every federal protection permanently, and that decision cannot be reversed.

Should I refinance my student loans?

For private-to-private the calculation is simple: if rates have fallen or your credit has improved, refinance. For federal-to-private it is a much heavier decision, and the 2026 changes cut both ways. Forgiveness being taxable again and RAP's 30-year timeline make federal forgiveness less valuable than it looked, which strengthens the case for refinancing if you have stable high income and will never need income-driven repayment or PSLF. But you are trading away protections you cannot buy back, so only do it if your income is genuinely secure.

What happens if I default?

Federal loans enter default after 270 days of non-payment. Consequences include wage garnishment up to 15%, seizure of tax refunds, garnishment of Social Security, loss of eligibility for further federal aid, a credit-score drop often exceeding 100 points, and collection fees. Recovery is possible through rehabilitation — nine voluntary on-time payments removes the default — or through consolidation. Private lenders sue and obtain judgments instead, with consequences varying by state. Contact your servicer before you reach 270 days; the options while current are far better than the options after.

Can student loans be discharged in bankruptcy?

Rarely, but the door is not closed. Federal guidance issued in 2022 made the process somewhat more navigable: borrowers demonstrate undue hardship through a separate adversarial proceeding, generally assessed against present hardship, future inability to repay, and good-faith effort. Success rates remain low and the process is expensive enough to need a bankruptcy attorney. For most borrowers an income-driven plan or PSLF is the more realistic route.

Gaurav Yadav

Built by Gaurav Yadav

Designer, author, and the one person behind Calculatory. Student loan math validated against StudentAid.gov, NerdWallet, and Bankrate calculators. More about the project.

Repayment-plan rules reflect the One Big Beautiful Bill Act and Department of Education guidance current as of September 2026. This is general information, not financial advice.

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