Tools / One-loan payoff estimate

Plan a student loan payoff.

Start with one free scheduled-payment estimate and a Loan Health Score using a balance, annual interest rate, and monthly payment. Active Premium includes score-matched improvement strategies, multiple payoff scenarios, and the scheduled-versus-extra payment comparison below.

Sample values are prefilled. Replace them with figures from a current loan statement. Estimates are educational planning information, not a promise of savings or a payoff date.

Use the calculator Get your AfterGrad Readiness Score Get the free worksheet

One free payoff scenario

Plan a payoff scenario

Your first balance, rate, payment, and payoff estimate are free. Multiple scenarios require an active Premium subscription.

Scenario name

Current balanceAnnual interest rateMonthly payment

Estimated payoff date

September 2035

About 8 yr 10 mo at this payment.

Estimated total interest: $11,314.23

Estimated balance over time · Scenario 1Estimate

Based on this scenario’s current inputs, with the rate and payment held steady. Starts at $36,000.00 in November 2026; estimated payoff is September 2035 at $0.00.

Estimated loan balance (USD)

Estimated calendar month

Free · educational indicator

Loan Health Score

This score updates with the balance, annual rate, and scheduled monthly payment entered above. It is an educational loan-health indicator, not a credit score, lender assessment, or promised outcome.

How the 1–100 scale works

55% · Payment after interest: more of the scheduled payment left for principal raises the score.
25% · Annual interest rate: a lower entered rate raises the score.
20% · Payment relative to balance: larger scheduled payments compared with the balance raise the score, capped at one year of the balance.

Each factor is normalized, weighted as shown, combined, and rounded to an integer from 1 to 100. A zero balance receives 100. Estimates use the entered figures and do not account for fees, changing rates, or loan-status changes.

Aftergrad Ledger Premium

Turn this score into practical next steps.

Active Premium includes actionable strategies matched to the score’s payment, rate, and balance factors, alongside the existing specialized calculators and comparisons.

Existing plans: $9.99 monthly or $79 annually. Strategies require active Premium.

Explore Premium plans

One-time What If access · $6.99 USD

What If?

Compare four changes with the free payoff estimate above. The basic balance, rate, scheduled payment, and payoff result remain free.

$6.99 USD · one time

Add $50/month
Add $100/month
Refinance at 5%
Increase salary by 10%

Set the salary scenario

Enter gross annual salary and the share of a 10% gross raise to put toward monthly loan payments.

Gross annual salaryGross pay before taxes; up to $1,000,000.00.Share of the raise allocated to loansChoose any share from 0% to 100%.

Enter both values to see the monthly payment increase from the gross raise.

Add $50/month

Modeled payment: $500.00/month

Estimated payoff: Around July 2034 (7 yr 8 mo)
Estimated total paid: $45,751.16
Estimated interest: $9,751.16

Compared with the free baseline1 yr 2 mo sooner; $1,563.07 less interest versus the free baseline.

Add $100/month

Modeled payment: $550.00/month

Estimated payoff: Around September 2033 (6 yr 10 mo)
Estimated total paid: $44,573.97
Estimated interest: $8,573.97

Compared with the free baseline2 years sooner; $2,740.26 less interest versus the free baseline.

Refinance at 5%

Hypothetical rate: 5% · same $450.00/month payment

Estimated payoff: Around January 2035 (8 yr 2 mo)
Estimated total paid: $43,881.62
Estimated interest: $7,881.62

Compared with the free baseline8 months sooner; $3,432.61 less interest versus the free baseline.

Increase salary by 10%

Monthly payment unavailable until both salary inputs are valid.

Estimated payoff: Enter salary and allocation to see this estimate.
Estimated total paid: Unavailable
Estimated interest: Unavailable

Compared with the free baselineSavings comparison unavailable because a payoff estimate is unavailable.

Checking What If access…

The four scenario identities remain visible while payment status is checked.

How to read these estimates

Each comparison models one loan with a steady balance, rate, and monthly payment. Monthly interest is applied before the payment and rounded to cents, matching the free calculator; results stop at 1,200 months.
The 5% refinance is a hypothetical rate-only comparison on the same balance and current payment, not a lender quote. New loan term changes, refinance fees, and effects on federal borrower protections are not modeled.
The salary case uses gross annual salary before taxes. It assumes the 10% gross raise has occurred and the selected share becomes a steady monthly payment increase; taxes and take-home pay are not estimated.
Fees, deferments, new borrowing, and loan-status changes are excluded. These are estimates, not financial advice; confirm payment handling and current terms with your servicer.

This free link contains the first scenario only.

One loan · two payment amounts

Compare a scheduled payment with an extra.

Keep the same balance and annual rate, then see the estimate with a recurring extra payment. The example and PDF below use this calculator.

Premium access

Checking access to The scheduled-payment versus extra-payment comparison…

Related student loan guides

A little more context for your next step.

Student loan interest deduction: Eligibility, limits, and how to claimReview who may qualify, the annual limits, and filing steps.Student loans and your credit reportLearn how payment history, delinquency, and default may be reported.

Partner recommendations

No paid partner offer is featured with this estimate.

If a referral recommendation is published here, the financial relationship will be disclosed beside that specific offer link.