Should you make biweekly mortgage payments?
Biweekly mortgage payments split your monthly payment in half and pay it every two weeks. Because there are 52 weeks in a year, you end up making 26 half-payments, which equals 13 full monthly payments. That extra payment each year goes straight to principal and can shorten your loan term and reduce the total interest you pay.
How biweekly payments save money
A standard 30-year fixed mortgage has 12 monthly payments per year. With a biweekly schedule, you make the equivalent of 13 monthly payments. The extra amount is applied to principal, so your balance drops faster than it would under the normal schedule.
On a $300,000 mortgage at 7% over 30 years, the monthly principal and interest payment is about $1,996. Over the full term, you would pay roughly $419,000 in interest. Paying half that amount every two weeks, or $998 every two weeks, could cut the term by roughly four years and save tens of thousands of dollars in interest. The exact saving depends on your rate, term, and when the servicer applies the extra payment.
Why timing matters
The benefit only works if the servicer applies the extra money to principal quickly. Some servicers hold the first half-payment until the second one arrives, then treat it as a single monthly payment. That setup does not reduce your balance any faster than monthly payments. It is simply a convenience for budgeting, not a money-saving strategy.
Before you start, ask your servicer how biweekly payments are handled. Specifically, ask whether the half-payments are credited to principal when received, or whether they are held until the full monthly amount is collected. If they are held, you are not getting the interest saving.
Watch out for third-party setup fees
Several companies offer to set up a biweekly payment plan for a fee. They typically charge an upfront amount and a small fee per payment, sometimes adding hundreds of dollars over the life of the loan. This is usually unnecessary. Most borrowers can achieve the same result for free by adding extra principal to their monthly payment.
For example, instead of paying $1,996 a month, you could pay $2,163 a month, which is one-twelfth of an extra monthly payment. That gives you the same one extra payment per year without the fees or the complexity of a third-party service. It also keeps you in direct control of your mortgage account.
The do-it-yourself version
If you like the budgeting rhythm of biweekly payments but want to avoid fees, you can split the payment yourself. Set up an automatic transfer from your checking account to a dedicated savings account every two weeks for half the monthly amount. Then make one extra principal payment each year, or increase your monthly payment by one-twelfth.
This approach has two advantages. You keep the cash until you are ready to send it, which gives you flexibility in an emergency. You also avoid any risk that a third-party service delays or misapplies your payment. The only discipline required is that you actually make the extra principal payment rather than spending the accumulated cash.
Biweekly payments versus a lump-sum extra payment
Biweekly payments spread the extra principal over the year, which is easier on cash flow. A lump-sum payment at the start of the year saves slightly more interest because the balance drops sooner. The difference is usually small, but if you have the cash and the discipline, a single annual principal payment can be slightly more efficient.
For most households, the smoother cash flow of biweekly payments is more practical than saving up a lump sum. The key is that the extra money actually goes to principal. If your servicer does not apply it correctly, neither approach saves you anything.
When does it make sense?
Biweekly payments work best when you have stable income that arrives every two weeks, your servicer applies the extra principal promptly, and you have no higher-rate debt to clear first. They also make sense if you prefer the psychological rhythm of matching mortgage payments to paychecks.
They make less sense if your servicer charges fees, holds payments until the full monthly amount arrives, or if you could get a bigger return by investing the extra cash instead. The guaranteed return from paying down a 7% mortgage is attractive, but a 401(k) match or an IRA contribution may beat it on a tax-adjusted basis. Build an emergency fund and capture any employer match before you commit to an accelerated mortgage payoff.
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Last updated: 4 August 2026. This article is educational and is not financial advice.