Amortize

Where every dollar of a mortgage payment goes

Biweekly plans, examined

In one paragraph

Paying half a monthly payment every two weeks adds up to 26 half payments, or 13 full payments, a year instead of 12. The extra payment goes to principal, which is why the loan ends sooner. You can usually get the same effect yourself by adding one twelfth of a payment to each monthly payment.

Last reviewed against the primary sources listed below.

How the calendar creates the extra

A year has 52 weeks. Paying every two weeks means 26 payments; two halves make a whole, so that is 13 monthly payments.

Questions before you enroll

The do-it-yourself version

Add one twelfth of your principal and interest payment to each monthly payment, marked as principal. Try it in the schedule tool.

Common questions about interest

Do biweekly payments really save interest?

Yes, mostly because they add one extra monthly payment per year to principal. A third-party fee can eat into the benefit.

Can I do biweekly payments without a program?

Usually yes. Adding one twelfth of a payment each month, marked as principal, gives a similar result.

Primary sources

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