Do Biweekly Mortgage Payments Really Save Money?

Biweekly mortgage payments are widely promoted as a painless way to pay off your home years early. The savings are real — but the reason they work isn't magic timing. It's a hidden extra payment, and once you understand it, you can capture the same benefit for free.

The Trick Behind the Savings

A standard mortgage has 12 monthly payments a year. With a biweekly plan, you pay half your monthly amount every two weeks. Because there are 52 weeks in a year, that's 26 half-payments — equal to 13 full monthly payments, not 12. You make one extra full payment per year without it feeling like much.

That single extra payment, applied to principal every year, is what cuts the loan term. On a typical 30-year mortgage it can shave off roughly 4–6 years and save tens of thousands in interest.

The Worked Example

On a $320,000 loan at 6.5% for 30 years, the standard payoff costs about $408,000 in interest over the full term. Adding the equivalent of one extra payment a year pays the loan off around 5 years early and saves roughly $70,000 in interest.

Do It for Free

Some lenders or third parties charge a setup or per-payment fee to 'enroll' you in a biweekly program. Don't pay it. You can get the identical result yourself two ways:

• Divide your payment by 12 and add that amount to each monthly payment, marked 'apply to principal.' Over a year it equals one extra payment.
• Make one full extra payment whenever you can (a tax refund or bonus works well), applied to principal.

Always confirm the extra amount is applied to principal, not held as a prepayment of next month's bill — otherwise it doesn't reduce your interest.

Frequently Asked Questions