Can I Pay My Mortgage Biweekly? How It Works and What to Check

Yes, you can pay your mortgage biweekly. Most servicers either offer a formal biweekly draft program or let you achieve the same result by adding a little extra principal to each monthly payment. Either way, paying half your monthly amount every two weeks produces 26 half-payments per year, which equals 13 full monthly payments instead of 12. That thirteenth payment goes straight to principal and can knock roughly four years off a 30-year loan.

How the Biweekly Math Works

A calendar year has 52 weeks. Split your monthly payment in half and pay it every two weeks, and you make 26 half-payments — the equivalent of 13 full payments. The extra payment reduces your principal balance, which cuts the interest you pay for the rest of the loan.

Don’t confuse biweekly with semi-monthly. Semi-monthly means twice a month (say, the 1st and the 15th), producing 24 half-payments, or exactly 12 full payments a year. Semi-monthly does not shorten your loan. If your servicer offers both, pick biweekly.¹

What You Actually Save

On a typical 30-year fixed-rate loan, switching to a biweekly schedule can shorten the term by about four years. The higher your interest rate, the bigger the savings, because every extra dollar of principal removes future interest from the base. On a $300,000 loan at 7 percent, the single extra annual payment produced by a biweekly schedule can save tens of thousands of dollars in interest over the life of the loan.

One caveat: the savings compound over time. If you sell or refinance in the first few years, the benefit is small because the extra payments haven’t had long to work.

Check Whether Your Servicer Offers a Biweekly Program

Not every servicer supports biweekly drafting. Log into your account portal and look under payment settings or automatic payment options. Some lenders, including Wells Fargo, let you choose monthly, semi-monthly, biweekly, or weekly withdrawals directly through the website, phone, or fax.¹ Others don’t support it at all, or push you toward a third-party administrator.

Be cautious with third parties. The Consumer Financial Protection Bureau has sued a large biweekly payment administrator over setup fees of up to $995 and annual fees of $84 to $101, alleging that a typical borrower would need to stay enrolled for nine years just to break even, and that marketing materials falsely implied the company was affiliated with the borrower’s lender.² If a company that isn’t your servicer contacts you about a biweekly program, get the full cost in writing — setup, annual, and per-transaction — before signing.

If your servicer does offer it, setup usually requires your mortgage account number, your bank’s routing and account numbers, and a signed ACH authorization. Some servicers ask for a voided check. Expect one to two billing cycles before drafts begin, and watch your statements closely during the first few months to confirm payments post correctly.

The Manual Alternative

If your servicer doesn’t offer a biweekly option, or if the only route runs through a paid third party, you can replicate the same result yourself for free. Take your monthly principal and interest, divide by 12, and add that amount to each regular payment. Over a year, you’ve made the equivalent of one extra payment.

The one thing you have to get right is applying the extra amount to principal only. When paying online, look for a field labeled “additional principal” or “extra principal payment.” If you mail a check, write “apply to principal” in the memo line or use the principal-only line on the coupon. Without that instruction, the servicer may push the extra money toward next month’s payment or park it in a suspense account.

Check your statement after each payment. Your balance should drop by the regular principal reduction plus the extra amount you sent. If it doesn’t, call the servicer right away.³

How Your Servicer Credits Half-Payments

Because each biweekly draft is only half of a full monthly payment, federal law treats it as a partial payment. Servicers have three options for handling it:

Hold each half-payment in a suspense (or “unapplied funds”) account, and disclose the amount held on your periodic statement.⁴
Credit the funds as a payment received once the suspense account holds enough to cover one full periodic payment.⁴
Return the payment without cashing it, though this is uncommon in a formal biweekly program.³

There’s no set federal time limit on how long money can sit in suspense. The rule is accumulation-based: once the account holds a full periodic payment, the servicer has to apply it. Check your statements for at least the first 90 days to make sure payments are being credited and not diverted to fees.

Before You Commit, Check These Four Things

Prepayment Penalties

A biweekly schedule produces only one extra payment per year, which rarely triggers a prepayment penalty on its own. But over several years, you are paying the loan down early, so it’s worth confirming your loan doesn’t include one.

Federal law limits these fees sharply. For loans that don’t meet the definition of a “qualified mortgage” under the Dodd-Frank Act, prepayment penalties are banned outright.⁵ For qualified mortgages, a penalty is permitted only on fixed-rate loans that aren’t higher-priced, can’t extend past three years after closing, and is capped at 2 percent of the prepaid balance in years one and two and 1 percent in year three. A lender offering a loan with a penalty also has to offer one without.⁶ If your loan is more than three years old, a penalty almost certainly no longer applies.

Escrow

If your payment includes escrow for taxes and insurance, biweekly drafts change how funds flow into that account. Federal rules require servicers to recalculate escrow when payment frequency changes.⁷ Ask your servicer to confirm the escrow portion will still be funded correctly under the new schedule.

Government-Insured Loans

Loans backed by the FHA, VA, or USDA can carry extra rules about how servicers handle partial payments. If you have a government-insured mortgage, confirm with your servicer that a biweekly arrangement is permitted under your loan’s guidelines before enrolling.

Your Mortgage Interest Deduction

Paying less interest is the point, but it also means a smaller mortgage interest deduction if you itemize. For most borrowers the interest savings dwarf the lost deduction. Mortgage interest is deductible on debt used to buy, build, or substantially improve your home.⁸ Under the Tax Cuts and Jobs Act, the deduction currently applies to interest on the first $750,000 of mortgage debt ($375,000 if married filing separately) for loans originated after December 15, 2017. That cap is scheduled to expire after 2025, returning to $1,000,000 ($500,000 if married filing separately) in 2026 unless Congress extends it.

One technical wrinkle: the IRS’s simplified averaging method for calculating your average mortgage balance generally isn’t available if you prepay more than one month’s principal during the year, which biweekly payers may exceed. In that case you’d use the interest-paid-divided-by-interest-rate method instead.⁸ It rarely changes the outcome much, but it matters if your balance is near the deduction cap.

1
Wells Fargo Home Mortgage. Automatic Mortgage Payment Options
2
Consumer Financial Protection Bureau. CFPB Files Suit Against Nationwide Biweekly for Luring Consumers with False Promises of Mortgage Savings
3
Consumer Financial Protection Bureau. My Mortgage Servicer Refuses to Accept My Payment. What Can I Do?
4
eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices and Certain Requirements for Credit Secured by a Dwelling
5
Office of the Law Revision Counsel. 15 U.S. Code 1639c – Minimum Standards for Residential Mortgage Transactions
6
Consumer Financial Protection Bureau. 12 CFR 1026.43 – Minimum Standards for Transactions Secured by a Dwelling
7
Consumer Financial Protection Bureau. RESPA Regulation 1024.17 – Escrow Accounts
8
Internal Revenue Service. Publication 936 Home Mortgage Interest Deduction