Biweekly mortgage payments mean paying half your monthly payment every two weeks. Because a year has 52 weeks, that is 26 half-payments, or 13 full payments instead of 12. On a $300,000 loan at 7.40%, the extra payment each year cuts the loan to about 23 years 4 months and saves $118,527 of interest. Here is how it works, what it saves at different rates, and the fees to avoid.
How biweekly payments work
- Monthly: 12 payments of $2,077.14 = $24,926 a year.
- Biweekly: 26 payments of $1,038.57 = $27,003 a year.
- The extra $2,077 a year (one full payment) goes to principal, so the balance falls faster and less interest builds up.
How much do biweekly mortgage payments save?
$300,000, 30-year fixed, biweekly from the start:
| Rate | Monthly payment | Biweekly payment | Paid off in | Interest saved |
|---|---|---|---|---|
| 4.00% | $1,432.25 | $716.12 | 25 years 11 months | $34,155 |
| 5.50% | $1,703.37 | $851.68 | 24 years 10 months | $63,027 |
| 6.50% | $1,896.20 | $948.10 | 24 years 1 month | $89,345 |
| 7.40% | $2,077.14 | $1,038.57 | 23 years 4 months | $118,527 |
The higher the rate, the more you save, because each early dollar of principal avoids more interest.
Biweekly savings by loan size
| Loan at 7.40% | Biweekly payment | Paid off in | Interest saved |
|---|---|---|---|
| $200,000 | $692.38 | 23 years 4 months | $79,018 |
| $400,000 | $1,384.76 | 23 years 4 months | $158,035 |
| $500,000 | $1,730.95 | 23 years 4 months | $197,544 |
On a 15-year loan the effect is smaller because there is less interest to cut: biweekly payments on $300,000 at 6.71% end the loan in 13 years 1 month and save $25,584.
Biweekly payments and your paychecks
If you are paid every two weeks, you get 26 paychecks a year, so two months each year have three paydays. A biweekly mortgage plan lines up with that rhythm: each paycheck covers half a payment, and the two extra half-payments become the 13th payment. If you are paid twice a month or monthly, the 1/12-extra method fits better.
Biweekly vs monthly with 1/12 extra
You can get almost the same result without changing your schedule: add one twelfth of a payment ($173.09) to each monthly payment. On the example loan that pays off in 23 years 5 months and saves $115,736, against 23 years 4 months and $118,527 for biweekly. Paying the extra monthly is easier with most servicers and works with any pay schedule.
Are biweekly mortgage payments worth it?
- Yes, if you are paid every two weeks and the half-payments match your paychecks, and your servicer applies each payment when it arrives.
- Check first whether your servicer accepts biweekly payments; some hold a half-payment until the second half arrives, which removes much of the benefit.
- Avoid fees. Some third-party biweekly programs charge a setup fee or a fee per payment. You can get the same result yourself for free by paying 1/12 extra each month.
- Order matters. Like any extra payment, put an emergency fund, your 401(k) match and high-interest debt first. See paying off your mortgage early.
How to set up biweekly payments
- Ask your servicer if it offers a free biweekly plan, and how it applies partial payments.
- If it does not, set up a monthly payment plus 1/12 extra marked “principal only”.
- Check your statements to make sure the extra money reduces principal.
- Use the amortization schedule calculator (choose every two weeks) to see your new payoff date.
These examples explain the math for planning. They are general information, not financial advice; your lender’s Loan Estimate gives the real figures.
Related calculators and guides
- Amortization schedule calculator
- Mortgage calculator
- paying off your mortgage early
- 15 vs 30 year mortgage
Sources
- Primary Mortgage Market Survey (Freddie Mac): 30-year fixed 7.40% on October 15, 2026
- What is a prepayment penalty? (CFPB)
Frequently asked questions
5 quick answers
Do biweekly mortgage payments save money?
Yes. They add one extra monthly payment a year. On $300,000 at 7.40% the saving is about $118,527.
How many years do biweekly payments take off a 30-year mortgage?
About 6 years 8 months on the example loan; it depends on the rate.
Is biweekly the same as paying twice a month?
No. Twice a month is 24 half-payments, the same as 12 monthly payments. Biweekly is 26.
Do biweekly payments hurt my credit?
No, as long as each monthly amount is paid by the due date.
Is it better to pay biweekly or make one extra payment a year?
They save almost the same. Biweekly spreads the extra payment through the year, so it saves slightly more.
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