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See how extra principal payments can shorten your payoff timeline and reduce total interest.
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Extra principal lowers the balance faster, which reduces future interest charges and shortens the loan timeline.
No. Extra payments reduce the balance and can shorten payoff. A recast usually lowers the required monthly payment after a lump-sum principal reduction.
That depends on your current rate, cash flow goals, and how long you plan to keep the loan. The calculator isolates the payoff effect of extra principal.
If the payment is too low to cover the monthly interest, the balance will not amortize down, so the payoff estimate cannot work.
Updated 3/15/2026
Calculators Mortgage Payoff Guide is updated daily with practical mortgage guidance for this page.