Biweekly Mortgage Payments Explained

Pay half your mortgage every two weeks instead of monthly, and a 13th payment appears each year like magic. It is just arithmetic, and it works.

Twenty-six half-payments per year equal 13 full monthly payments instead of 12. On a $300,000, 7%, 30-year loan, that one extra payment a year cuts about 6.3 years and $102,000 in interest, with payments that match a biweekly paycheck rhythm.

The 13th payment

There are 52 weeks in a year, so biweekly payers make 26 half-payments: the equivalent of 13 monthly payments. The extra payment lands as two months per year with three half-payments instead of two. If you are paid biweekly already, the rhythm is painless; the money leaves on payday.

The savings

On the standard $300,000, 7 percent example, the biweekly equivalent (an extra 1/12 of the payment each month) pays the loan off in about 23.8 years instead of 30 and saves roughly $102,000 in interest. Same total outlay per year as one extra monthly payment, just distributed evenly.

DIY vs bank programs

Some lenders and third parties sell biweekly programs with setup fees. Skip them: just divide your monthly principal-and-interest payment by 12 and add that amount to each monthly payment as extra principal. Identical math, zero fees. Confirm with your servicer that the extra applies to principal.

Who should not bother

If your budget is already tight, the forced extra payment removes flexibility you might need. And if you hold higher-interest debt, that debt earns a better return on extra dollars. Biweekly is a great default for stable budgets, not a universal rule.

Skip the arithmetic

Compare biweekly-style extra payments against your current payoff date.

Try the free mortgage payoff calculator

Biweekly payment questions

Do biweekly mortgage payments save money?

Yes. The extra annual payment cuts roughly 5 years and $78,000 in interest off a typical $300,000, 7 percent, 30-year loan.

Should I pay for a biweekly mortgage program?

No. You can replicate the math for free by adding one-twelfth of your monthly payment as extra principal each month. Paid programs charge fees for the same result.

How do I set up biweekly payments myself?

Either send half your payment every two weeks, or simpler: add one-twelfth of the monthly payment as extra principal each month, marked for principal.

Do biweekly payments work with any mortgage?

The math works on any amortizing mortgage. Just confirm with your servicer that additional amounts are applied to principal rather than held or applied to future payments.