PlainFigure

Extra mortgage payment calculator

Compare your scheduled payoff against extra monthly or one-time principal payments, including payoff date, interest saved, and cashflow tradeoffs.

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Calculate your accelerated payoff

Use principal-and-interest payment only. Do not include taxes, insurance, HOA dues, or PMI in the payment field.

Original payoff
Accelerated payoff
Time saved
Interest saved
Current P&I payment
Extra monthly cashflow
Original interest
Accelerated interest
PathMonthly P&IExtra monthlyOne-time extraPayoff timeTotal interestTotal paid
MonthPaymentPrincipalExtra principalInterestEnding balance

The payment path table shows the first 12 accelerated months and the final payoff month. It is intended for planning, not a servicer statement.

Methodology notes

Amortization

Each month, interest is calculated from the remaining balance and monthly rate. Scheduled principal plus extra principal then reduces the balance.

Current payment

If you leave the payment blank, PlainFigure estimates the principal-and-interest payment from balance, rate, and remaining term.

Payoff dates

Payoff dates count forward from the selected month. Actual lender posting dates, recasts, fees, and escrow changes are not modeled.

Results are estimates for educational purposes only and are not financial advice. PlainFigure may earn a commission from partner links, but calculator formulas are independent. See full disclosure.

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