Money ManagementETF vs Mutual Fund: Which Is Better for Beginners?
ETF vs Mutual Fund: Which Is Better for Beginners? Explore costs, tax implications, and trading flexibility for informed investment decisions.
MAJun 11, 2026Read More →
Biweekly Mortgage Calculator
See how paying half your mortgage every two weeks pays the loan off years early and saves interest compared with monthly payments. Enter your numbers and press Calculate.
Written by TopicDrill Editorial Team·Updated June 2026
Remaining balance over time
Monthly Biweekly
Advertisement
How the biweekly mortgage calculator works
A standard mortgage is paid once a month, twelve times a year. A biweekly schedule splits that payment in half and charges it every two weeks. Since a year has 52 weeks, you make 26 half-payments, which adds up to 13 full monthly payments instead of 12. That one extra payment each year goes entirely to principal.
Knocking down the principal faster means less interest accrues on the remaining balance, so the loan is paid off sooner. The chart above shows both plans side by side: the biweekly balance (orange) falls below the monthly balance (dashed) and reaches zero years earlier.
A quick example
Take a $300,000 loan at 6.5% over 30 years. The monthly payment is about $1,896, so the biweekly payment is roughly $948. Paying that every two weeks clears the loan in about 25 years instead of 30 and saves well over $60,000 in interest, simply from one extra payment a year.
Things to keep in mind
The savings rely on the extra amount actually reaching principal, so confirm your lender applies it that way and that there is no prepayment penalty. Watch out for biweekly programs that charge fees. For guidance on managing a mortgage, the Consumer Financial Protection Bureau is a reliable source. Compare more scenarios with our other free calculators.
Frequently asked questions
How does a biweekly mortgage work?
Instead of one monthly payment, you pay half of it every two weeks. Because there are 52 weeks in a year, that means 26 half-payments, which equals 13 full monthly payments instead of 12. The one extra payment each year goes straight to principal and shortens the loan.
How much can a biweekly schedule save?
On a typical 30-year loan, switching to true biweekly payments often pays the mortgage off about four to six years early and can save tens of thousands of dollars in interest. The exact figures depend on your loan amount, rate and term, which this calculator works out for you.
Is a biweekly mortgage the same as paying extra?
Essentially yes. The savings come from the single extra monthly payment spread across the year. You could achieve the same result by adding one-twelfth of your payment to each monthly bill, as long as the lender applies the extra to principal.
Are there any downsides to biweekly payments?
Some lenders or third-party services charge setup or transaction fees for biweekly programs, which can erode the savings. Always confirm there is no prepayment penalty and that extra amounts are applied to principal. Doing it yourself by paying extra each month avoids most fees.
Related guides
View all →
Business FinanceHow Much Will $1,000 Invested Today Be Worth in 10 Years?
Invest $1,000 today and the answer to "what's it worth in 10 years?" ranges from about $1,040 in a basic savings account to roughly $2,594 at the stock market's long-run average. Here's the math behind every scenario — plus how inflation, fees and taxes change the real number.
MAJun 9, 2026Read More →
Business FinanceHow Much Do You Need to Retire Comfortably? (2026 Guide)
There's no single magic number for retirement — but there are proven formulas that get you close. Using the 4% rule, most people need roughly 25 times their annual spending invested. Here's how to find your personal target, factoring in Social Security, healthcare, inflation and lifestyle.
MAJun 9, 2026Read More →
Advertisement