Why do biweekly payments save money?

There are 26 two-week periods in a year, so 26 half-payments equal 13 full monthly payments — one extra payment a year that goes straight to principal.

How much time can I save?

On a 30-year loan at around 6–7%, biweekly payments typically cut about 5–6 years and a large share of total interest.

Does my lender apply payments every two weeks?

Not always. Some lenders hold half-payments until a full payment is collected. This calculator assumes each half-payment is applied when made.

Is there a fee for biweekly plans?

Third-party biweekly services sometimes charge fees. You can get a similar result by adding 1/12 of a payment to each monthly payment.

Yes. The amortization runs entirely in your browser.

Biweekly Mortgage Calculator

See how paying half your mortgage payment every two weeks (26 payments a year) shortens the loan and cuts total interest.

100% free
Private in browser
No signup
No watermarks

Loan balance ($)

Interest rate (%)

Remaining term (years)

Monthly payment

$1,896.20

Biweekly payment

$948.10

Total interest (monthly)

$382,633.47

Total interest (biweekly)

$294,511.68

Interest saved

$88,121.78

Time saved

5 yr 10 mo (70 months)

Biweekly payoff time

24 yr 2 mo (290 months)

Rate this tool

Be the first to rate — helps others and improves this page.

About Biweekly Mortgage Calculator

Paying half of your monthly mortgage payment every two weeks adds up to one extra monthly payment each year. Enter your loan to compare monthly and biweekly schedules side by side: payoff time, total interest and the savings.

How to use Biweekly Mortgage Calculator

Enter your current loan balance and interest rate.
Enter the remaining term in years.
Compare the monthly schedule with half-payments every two weeks.

Key features

26 half-payments per year simulation
Interest saved and months shaved off
Side-by-side monthly vs biweekly totals
Works for any fixed-rate mortgage
No sign-up, runs in your browser

Frequently asked questions

Why do biweekly payments save money?: There are 26 two-week periods in a year, so 26 half-payments equal 13 full monthly payments — one extra payment a year that goes straight to principal.
How much time can I save?: On a 30-year loan at around 6–7%, biweekly payments typically cut about 5–6 years and a large share of total interest.
Does my lender apply payments every two weeks?: Not always. Some lenders hold half-payments until a full payment is collected. This calculator assumes each half-payment is applied when made.
Is there a fee for biweekly plans?: Third-party biweekly services sometimes charge fees. You can get a similar result by adding 1/12 of a payment to each monthly payment.
Is my data private?: Yes. The amortization runs entirely in your browser.

Related In-Depth Guides

Learn practical workflows, real-world examples, and expert tips in our comprehensive guides:

Home Renovation & DIY · 8 min read