Do Biweekly Loan Payments Really Save Money?

Switching to biweekly loan payments is one of the most popular "painless" ways to pay off a loan faster. The trick is simple, but the savings are real — here's exactly how it works and when it's worth doing.

→ See how an extra payment a year shortens your loan

How biweekly payments work

Instead of one monthly payment, you pay half your payment every two weeks. Because there are 52 weeks in a year, that's 26 half-payments — the equivalent of 13 full monthly payments instead of 12. That one extra payment each year goes entirely to principal.

Why that extra payment matters

Loan interest is charged on your remaining balance. An extra full payment every year removes principal early, so less interest accrues over the life of the loan — and the loan ends sooner. On a typical 5-year auto loan, biweekly payments can shave a few months and save a meaningful chunk of interest.

The catch: the savings come entirely from the extra 13th payment — not from "paying more often." Paying the same 12 payments biweekly with no extra wouldn't help.

→ Compare your payoff with one extra payment a year

Watch out for these

Lender fees. Some lenders or third-party "biweekly programs" charge setup or per-payment fees that eat the savings. You can usually replicate the effect for free yourself.
Misapplied payments. Confirm your lender applies the extra to principal and doesn't just hold half-payments until a full one is due.
Prepayment penalties. Rare on auto loans, but check your contract.

The free DIY version

You don't need a special program. Just divide your monthly payment by 12 and add that amount to each monthly payment — same result, no fees. Or make one extra full payment each year (for example, from a tax refund).

A quick example

Take a $24,000 auto loan at 7% over 5 years, with a monthly payment of about $475. Paying $237.50 every two weeks instead sneaks in one extra payment a year — enough to clear the loan roughly four to five months early and save a few hundred dollars in interest. The exact figure depends on your balance and rate, but the pattern always holds: the savings come from that 13th annual payment quietly going to principal. The bigger your balance and rate, the more it adds up.

The bottom line

Biweekly payments save money because they sneak in one extra payment a year, not because of the schedule itself. If your lender applies them correctly with no fees, it's an easy way to pay off a loan faster — or just replicate it yourself for free.

→ Try it: add an extra payment and see the savings