Biweekly Mortgage Payment Calculator

See how switching to biweekly payments — 26 half-payments a year — speeds up your payoff.

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Biweekly payment

Estimates only. CalcPenny is not a lender, broker or financial adviser and this is not financial advice. Verify figures before making decisions.

One extra payment, painlessly

Because paychecks often arrive biweekly, splitting the mortgage payment the same way rarely feels like a sacrifice — yet it quietly adds a full extra payment every year, which compounds into years shaved off a 30-year loan.

Frequently asked questions

How does biweekly payment save money?
Paying half your monthly payment every two weeks means 26 half-payments a year — equal to 13 full monthly payments instead of 12. That one extra payment a year goes straight to principal.
Do I need my lender's permission?
Many lenders offer a formal biweekly program, sometimes with a setup fee. You can get the same effect for free by simply adding 1/12th of your payment to each regular monthly payment yourself.
Is this the same as the extra-payment approach?
Yes, mathematically — biweekly is just a specific, disciplined way of making one extra monthly-equivalent payment a year. See the Mortgage Payoff Calculator to model any custom extra amount.

Last updated: June 2026

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