Does paying mortgage biweekly save money? See how biweekly mortgage payments reduce interest and shorten your loan term. Compare monthly vs biweekly payments side by side.
A biweekly mortgage payment schedule splits your monthly payment in half and has you pay every two weeks instead of once a month. Since there are 52 weeks in a year, this means you make 26 half-payments — equivalent to 13 full monthly payments each year instead of 12.
That extra "13th month" payment each year goes directly toward reducing your principal balance, which:
| Feature | Monthly Payments | Biweekly Payments |
|---|---|---|
| Payments per year | 12 | 26 (13 months equivalent) |
| Payment amount | Full monthly payment | Half of monthly payment |
| Extra principal per year | $0 extra | 1 full monthly payment extra |
| Interest savings (30-yr, 6.5%, $300k) | $0 | ~$60,000+ |
| Payoff time (30-yr mortgage) | 30 years | ~23–24 years |
Get precise numbers on how much interest you'll save by switching to biweekly payments based on your specific loan balance, rate, and term.
See exactly how many years and months you'll shave off your mortgage by making the switch to accelerated biweekly payments.
Our calculator lets you add extra amounts to each biweekly payment, showing how even small additional payments can dramatically increase your savings.
View monthly vs biweekly results in an easy-to-compare format so you can make an informed decision about your mortgage payment strategy.
⚠️ Disclaimer: This Biweekly Mortgage Payment Calculator is for educational and estimation purposes only. Actual savings depend on your specific loan terms, lender policies on biweekly payment application, and whether the lender offers true biweekly payment plans (which may involve fees). For important financial decisions, consult with a qualified financial advisor or mortgage professional.