Biweekly Mortgage Payment Calculator
See how paying half your mortgage every two weeks — 26 half-payments, or 13 full payments a year — shortens your loan and cuts interest.
For information and education only — not financial advice. Results are estimates based on the numbers you enter; check important decisions with a qualified professional.
How to use
- 1Enter your loan amount, rate and term.
- 2Compare the standard monthly schedule with biweekly payments.
How it's calculated
26 half-payments a year equal 13 monthly payments. That's modeled as one-twelfth of a monthly payment added to principal each month.
Frequently asked questions
Why does biweekly save so much?
You make one extra monthly payment a year, all going to principal, and that reduces interest on every future payment.
Do I need a special program?
No. You can get the same result by adding 1/12 of your payment to principal each month. Avoid services that charge fees for biweekly plans.
Does my lender accept biweekly payments?
Some apply half-payments only when a full payment arrives. Check that extra money goes to principal promptly.