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Debt Payoff Calculator

Plan a faster debt payoff with clear assumptions. Compare minimum payments versus accelerated payoff plans to estimate your debt-free date and total interest cost.

How the estimate works

The calculator applies monthly interest to the remaining balance, subtracts the regular and extra payment, and repeats until the balance reaches zero.
Change one assumption at a time to compare scenarios.
Use current balances, rates, costs, and timelines whenever possible.

Important limitation

For multiple debts, compare each balance separately or use the entered values as a combined planning estimate. Results are estimates only and are not financial, lending, legal, tax, or investment advice.

Assumptions and review

Formula review: July 29, 2026. This tool uses only the values shown above and does not pull live rates, balances, prices, or account data.

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Frequently asked questions

How does the debt payoff calculator work?

The calculator applies monthly interest to the remaining balance, subtracts the regular and extra payment, and repeats until the balance reaches zero.

Can I change the assumptions?

Yes. Every displayed input is editable so you can compare scenarios directly.

Are these results guaranteed?

No. Results are estimates only and should be used for planning, not as financial, legal, lending, or tax advice.