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Biweekly Mortgage Calculator
See how biweekly payments cut years off your mortgage and save thousands in interest — without changing your monthly budget.
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How Biweekly Payments Work
Traditional mortgages require 12 monthly payments per year. A biweekly payment schedule requires you to pay half of your monthly mortgage payment every two weeks. Because there are 52 weeks in a year, paying every two weeks results in 26 half-payments annually.
Since 26 divided by 2 equals 13, making biweekly payments means you effectively make 13 full monthly payments each year instead of 12. That single extra monthly payment equivalent spread across the year goes entirely toward paying down your principal loan balance.
Furthermore, because interest on a mortgage accrues daily based on your current principal balance, making payments every two weeks reduces your average daily balance faster than waiting until the end of the month, resulting in additional compounding interest savings.
Biweekly vs Extra Monthly Payments
Both biweekly schedules and making an extra monthly payment achieve the same ultimate financial milestone: eliminating your mortgage years ahead of schedule and reducing total interest.
The primary advantage of a biweekly schedule is psychological and alignment-based. If you get paid every two weeks (26 paychecks per year), budgeting half your mortgage payment out of each paycheck matches your cash flow rhythm perfectly without requiring you to save up a lump sum or make manual monthly transfers.
Frequently asked questions
How does a biweekly mortgage work?
Instead of making 12 monthly mortgage payments per year, you pay half of your monthly payment every two weeks. Because there are 52 weeks in a year, you make 26 half-payments—which equals 26 / 2 = 13 full monthly payments per year. That extra annual payment goes directly toward reducing your principal balance.
Is biweekly better than extra monthly payments?
Both methods achieve the same financial goal of accelerating mortgage payoff and cutting total interest. Biweekly payments synchronize naturally with biweekly paychecks, making budgeting seamless without having to manually remember extra monthly transfers.
Do I need to enroll in a biweekly program?
You do not need to pay a third-party company for a biweekly program. Many mortgage servicers allow you to set up biweekly payments directly on your online portal for free, or you can simply make one extra principal payment per year on your own.
Does biweekly hurt my credit score?
No, paying your mortgage more frequently does not harm your credit score. Lowering your total loan balance faster can improve your credit utilization ratio and long-term financial standing.
How much does biweekly save on a 30-year mortgage?
On a typical $320,000 mortgage at 6.76% interest, switching to biweekly payments shaves several years off a 30-year term and saves tens of thousands of dollars in total interest charges.