Home  /  Mortgage Calculators  /  Biweekly Mortgage Calculator
Biweekly Mortgage Calculator

See how a biweekly strategy could help you pay off your mortgage sooner.

Compare a standard monthly mortgage schedule with an accelerated biweekly strategy of 26 half-payments per year, equal to roughly 13 full monthly payments annually.

Enter your mortgage details

We'll compare the normal monthly schedule with an accelerated biweekly equivalent.

Annual fixed interest rate (%).
Estimated interest savings
$0
Estimated savings from the accelerated biweekly equivalent compared with normal monthly payments.
Normal monthly payment $0
Biweekly half-payment $0
Estimated time saved —
Accelerated payoff —
Monthly-plan annual payments $0
Biweekly annual payments $0
Extra principal equivalent per year $0
Normal estimated payoff —
Payment Comparison

Monthly vs. accelerated biweekly payments

The accelerated plan effectively adds one extra monthly payment each year.

Standard Monthly Schedule

Monthly payment $0
Payments per year 12
Annual amount paid $0
Total interest $0
Estimated payoff —

Accelerated Biweekly Equivalent

Payment every two weeks $0
Half-payments per year 26
Annual amount paid $0
Total interest $0
Estimated payoff —
Accelerated Loan Schedule

See the estimated balance by year

This schedule models the extra annual payment as an equivalent additional amount spread across the year.

Year Beginning Balance Scheduled Payments Extra Principal Principal Paid Interest Paid Ending Balance
Understanding Biweekly Payments

Why biweekly payments can shorten a mortgage

A year has 52 weeks. Making a half payment every two weeks produces 26 half-payments during the year.

Twenty-six half-payments equal 13 full monthly payments, compared with the 12 full payments made under a normal monthly schedule.

The extra-payment effect

The additional amount is generally applied toward principal. Reducing principal sooner means less balance remains on which future interest can be calculated.

Why actual lender results can differ

Mortgage servicers do not all process partial payments the same way. Some may hold a half-payment until enough money has been received to make a complete monthly payment.

For that reason, this calculator models the common financial effect of making the equivalent of 13 monthly payments per year rather than assuming a specific lender's payment-processing method.

Check for fees

Some third-party biweekly payment programs charge setup or transaction fees. You may be able to create a similar accelerated-payment effect by making an additional principal payment directly to your mortgage servicer.

How this calculator models biweekly payments

26 half-payments ÷ 2 = 13 monthly-payment equivalents per year
✓ Calculates the standard monthly principal-and-interest payment
✓ Divides the regular payment in half to show the biweekly amount
✓ Models one additional monthly-payment equivalent per year
✓ Estimates potential interest savings
✓ Estimates potential payoff-time savings
✓ Provides an annual accelerated balance schedule

This is an educational estimate. Actual mortgage servicing, payment application, interest accrual and lender policies may differ.

Biweekly Mortgage FAQ

Frequently asked questions

How many biweekly mortgage payments are made each year?

There are 52 weeks in a year, so a payment made every two weeks results in 26 half-payments. Those 26 half-payments equal approximately 13 full monthly payments.

Why does a biweekly plan pay the mortgage off faster?

The strategy effectively makes one additional monthly payment each year. The extra amount reduces principal sooner, which can reduce future interest.

Is biweekly the same as paying twice a month?

No. Paying twice a month creates 24 half-payments per year, equal to 12 full payments. Paying every two weeks creates 26 half-payments, equal to 13 full payments.

Will my mortgage servicer accept half-payments?

Policies vary. Some servicers accept biweekly payments while others may hold partial payments until a full monthly payment is available. Check with your mortgage servicer before changing your payment schedule.

Can I get a similar result by making one extra payment per year?

Generally, making one additional full principal-and-interest payment per year can create a similar accelerated-payoff effect, depending on when and how the extra amount is applied.

Does this calculator include taxes and insurance?

No. The accelerated-payoff calculation focuses on mortgage principal and interest. Property taxes, homeowners insurance, mortgage insurance and HOA dues are not included.

LoanMathWorks provides calculators and educational information for general informational purposes only. Results are estimates and should not be considered financial, lending, tax or legal advice. LoanMathWorks is not a lender. Actual mortgage servicer processing, payment timing, interest calculations, fees and payoff results may differ.