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Calculator · Updated for 2026

Debt Payoff Calculator

Estimate how long it may take to pay off debt with a fixed monthly payment.

Important: This tool is for educational estimates only. Verify exact rates, fees, taxes, and terms with the provider.
Enter values and calculate.

How to use this calculator

Enter realistic assumptions, run the estimate, then test a higher and lower scenario. Small changes to rates, time, and payments can change the result significantly.

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How debt payoff works

When you make a monthly payment on a debt, part of it covers the interest that accrued since your last payment, and the rest reduces your principal balance. In the early months of a high-APR loan, a large share of each payment goes to interest rather than the balance. As the balance decreases, more of each payment goes toward principal, and payoff accelerates.

The minimum payment trap is a real phenomenon with revolving debt like credit cards. Minimums are often set so low (1–3% of the balance) that barely any principal is being paid down each month. A $5,000 balance at 22% APR with a $100 monthly payment will take over 8 years to pay off and cost more than $4,500 in interest alone — nearly doubling the original debt.

Increasing your payment by even a small amount — $25 or $50 per month — can shave years off your payoff timeline and save hundreds or thousands in interest. Use the calculator above to test different payment scenarios.

Strategies to accelerate payoff

  • Debt avalanche: Pay minimums on all debts; put extra money toward the highest-interest debt first. Saves the most total interest.
  • Debt snowball: Pay minimums on all debts; put extra money toward the smallest balance first. Provides psychological wins faster.
  • Biweekly payments: Making half your monthly payment every two weeks results in 26 half-payments per year — equivalent to 13 full monthly payments instead of 12.
  • Windfalls: Apply tax refunds, bonuses, or gifts directly to debt principal for an immediate reduction.