Free Mortgage Tool

Extra Mortgage Payment Calculator

See how much interest you save and how many years you cut off your loan with extra payments.

$
%
yrs
$
Interest saved
$0
You'll pay off — years early
Without extra payments
Monthly payment$0
Payoff
Total interest$0
With extra payments
Monthly payment$0
Payoff
Total interest$0

Why extra payments are so powerful

Every extra dollar you pay goes 100% toward principal. Because interest is calculated on the remaining balance, reducing principal early means every future month has a smaller interest charge. This compounding effect means even modest extra payments can save tens of thousands over the life of a loan.

Strategies for paying off your mortgage early

Extra monthly payments: Add a fixed amount each month. Even $100–$200/month adds up significantly over time.

Bi-weekly payments: Pay half your monthly payment every two weeks. This naturally results in 13 full payments per year instead of 12 — one extra payment annually at no extra effort.

Annual lump sum: Put windfalls (tax refunds, bonuses) directly toward principal once a year.

Should you pay extra or invest instead?

If your mortgage rate is below your expected investment return, investing wins mathematically. But paying down your mortgage offers a guaranteed, risk-free return equal to your interest rate. Many homeowners split the difference — especially once higher-rate debt is paid off. Use our investment calculator to compare both scenarios.

Frequently asked questions

Does paying extra on a mortgage reduce interest?

Yes. Extra payments go directly to principal, which reduces the balance interest is calculated on. This shrinks every future interest charge and can save tens of thousands over the life of the loan.

How much does one extra payment per year save?

On a typical 30-year mortgage, making one extra monthly payment per year (13 payments total) cuts the loan term by 4–6 years and saves thousands in interest.

Is it better to pay extra on mortgage or invest?

If your mortgage rate is 6.9% and you expect a 9% investment return, investing wins on paper. But mortgage payoff is guaranteed and risk-free. Many people do both — pay some extra on the mortgage and invest the rest.