Early Mortgage Payoff Calculator

Extra Payments · Target Date · Interest Saved

Pay off your mortgage faster. Enter an extra monthly amount or a target payoff date — see exactly how much time and money you save.

$
%
yrs
mos

Enter how much time is left on your loan

$

Applied immediately to principal

$

Interest Saved

$69,082

Pay off 4 yr 6 mo sooner

Comparison

Original
Accelerated
Monthly
$2,160.66
$2,360.66
Payoff
25 yr
20 yr 6 mo
Total Interest
$328,199
$259,117

Loan Balance Over Time

$0$80k$160k$240k$320kNow5yr10yr15yr20yr25yr
Original
Accelerated

Want to refinance to a lower rate AND pay it off faster?

A licensed loan officer can show you options that save both time and money.

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How to Use This Calculator

Mode 1 — I'll Pay Extra Monthly

Enter your current loan balance, rate, and remaining term. Then type in how much extra you can add to your monthly payment. The calculator instantly shows how many months you cut off your loan and how much interest you save over the life of the loan.

Mode 2 — I Have a Target Payoff Date

If you know you want to be mortgage-free in 15 or 20 years instead of 30, switch to this mode. Pick your target and the calculator works backwards to tell you exactly how much extra you need to pay each month to hit that goal.

One-Time Extra Payment

Got a bonus, tax refund, or inheritance? Enter it as a one-time lump sum payment. It gets applied directly to your principal, reducing the balance the monthly simulation starts from — and the impact is larger than you might expect.

Why Extra Payments Are So Powerful

Every dollar you pay toward principal today eliminates all the interest that would have been charged on that dollar for the remaining life of the loan. On a 30-year mortgage at 6.5%, that can multiply a $200/month extra payment into over $80,000 in interest savings.

The earlier in the loan you make extra payments, the more powerful they are — because you are cutting principal while the balance is highest and the most interest is being charged. Extra payments made in year 1 save far more than the same payments made in year 25.

Things to Know Before Paying Extra

Make Sure It Goes to Principal

When making extra payments, tell your lender or servicer explicitly that the extra amount should be applied to principal — not to the next month's payment. Some servicers will advance your due date instead, which does not save you any interest.

Check for Prepayment Penalties

Most conventional loans have no prepayment penalty, but some older or non-QM loans do. Check your loan documents before making large lump sum payments.

Compare to Other Uses of the Money

If your mortgage rate is 6.5% but you can earn 8% in investments, you may come out ahead investing the extra money instead. Consider the after-tax cost of your mortgage versus expected investment returns before deciding.

Use this calculator on your own website

Results are estimates based on a fixed interest rate and consistent extra payments. Actual savings may vary based on your loan servicer, payment timing, and any rate changes.