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Biweekly mortgage

See how paying half a mortgage payment every two weeks shortens the loan.

Built and maintained by The NumberPrism Editorial TeamEditorial policy

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Results update as you type. The formula and assumptions are explained below the calculator.

Interest saved with biweekly payments

$87,256.29

Standard monthly payment$1,896.20
Biweekly payment$948.10
Payoff time24.2 years
Time saved70 months

Estimate only. It approximates 26 half-payments as 13 monthly payments, assumes the rate stays fixed and ignores lender setup fees or transaction charges.

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How to read the biweekly result

Compare the accelerated schedule with the standard one.

1

Enter the loan

Use the outstanding balance, rate and remaining term.

2

Check the payment

The biweekly amount is half the standard monthly payment.

3

Compare the saving

Weigh the interest saved against any lender fee for the plan.

What does this tool do?

Twenty-six half-payments add up to thirteen monthly payments a year. That extra payment goes to principal and compounds into a shorter term and lower interest.

The Formula

Accelerated payment = Monthly payment × 13 ÷ 12; interest saved = Base interest − Accelerated interest

Frequently Asked Questions

Is a biweekly plan the same as an extra payment?

Effectively yes for a fixed-rate loan. The extra annual payment is what shortens the term.

Does the lender charge for this?

Some do. Setup fees or transaction charges can reduce the benefit, so compare them with the interest saved.