Mortgage Payoff Calculator

Companion to the Buy vs Rent & Readiness tools

Mortgage Payoff Calculator

See exactly how bi-weekly payments and extra principal shrink your loan — how many years you cut, how much interest you save, and why paying early matters most. Every scenario updates live.

Enter your loan to see the payoff strategies.

Your loan

$
The mortgage balance — home price minus down payment.
%

Extra payments

$
Added to every monthly payment, straight to principal.
$
A lump sum — a bonus or tax refund — applied once, N months in.

Strategy comparison

Balance over time

Where your money goes

Year-by-year schedule

View amortization table
How the strategies are modeled. Bi-weekly means paying half the monthly amount every two weeks — 26 payments a year, which equals 13 monthly payments (one extra per year) with principal reduced every two weeks. The savings shown assume your servicer actually applies each payment when received; some "bi-weekly programs" instead hold your money and apply one extra payment once a year (a smaller benefit) and may charge a fee — you can replicate true bi-weekly for free by adding 1/12 of a payment to your principal each month yourself. Figures are principal and interest only (not taxes, insurance, or PMI), use the standard rate-over-frequency convention, and assume no prepayment penalty. Estimates for learning, not financial advice.