Find out exactly when your mortgage will be paid off — and how much sooner it could happen if you add extra payments. Enter your current loan details below to see your new payoff date, years saved, and total interest saved, calculated live.
Results
Before vs. after extra payments
Biweekly and weekly schedules are estimated as their standard accelerated-payment equivalent (13 monthly payments per year). This calculator assumes a fixed interest rate for the remaining life of the loan.
Introduction
What this mortgage payoff calculator does
A mortgage payoff calculator estimates how long it will take to pay off your home loan based on your current balance, interest rate, and payment amount — and how much sooner that date moves if you add extra payments. Instead of guessing whether an extra $100 or $200 a month is “worth it,” this tool runs the actual amortization math and shows you the new payoff date and the dollars saved in interest.
It works for homeowners who are simply curious about their timeline, and for anyone actively deciding whether to make extra mortgage payments, switch to a biweekly schedule, or put a bonus or tax refund toward their loan balance.
How It Works
How the mortgage payoff calculator works
The calculator uses standard mortgage amortization: each month, part of your payment covers interest on the remaining balance, and the rest reduces the principal. As the balance drops, less of each future payment goes to interest — which is exactly why extra payments made earlier in the loan have an outsized effect.
- Loan balance — the amount interest is currently calculated on. A lower balance means less interest accrues every month.
- Interest rate — your annual percentage rate (APR), applied monthly to the remaining balance.
- Monthly payment — your regular scheduled payment, split between interest and principal.
- Extra payments — any amount above the regular payment goes entirely toward principal, with no interest charged on it.
- Interest savings — the difference between the interest you’d pay on the original schedule versus the accelerated one.
Why It’s Worth Doing
Benefits of paying off your mortgage early
Save thousands in interest
Because interest is charged on your remaining balance, every extra dollar of principal you pay off early avoids all the interest that dollar would have accrued for the rest of the loan.
Become debt-free faster
Shaving even a few years off a 30-year mortgage means reaching full ownership — and a major recurring bill disappearing — well ahead of schedule.
Improve financial planning
A clear payoff date makes it easier to plan around it — whether that’s retirement, a career change, or redirecting that payment toward other goals.
Build home equity faster
Extra principal payments increase your equity immediately, which can matter for refinancing, a home equity loan, or selling down the road.
The Mechanics
How extra mortgage payments reduce loan time
Extra payments shorten your loan because mortgage interest compounds on whatever balance is left — so a smaller balance today means smaller interest charges every month from now on, which compounds into real time savings.
Example: On a $320,000 balance at 6.5% with a $2,100 monthly payment, adding just $200 extra per month can cut roughly 6–7 years off a 27-year remaining term and save well over $60,000 in interest — try your own numbers in the calculator above to see the exact figures for your loan.
The earlier in the loan you start making extra payments, the bigger the effect, since more of your regular payment is still going toward interest at that stage. That’s also why a biweekly schedule — which sneaks in one extra full payment a year — tends to outperform an equivalent lump-sum payment made at the very end of the year.
Frequently Asked Questions
Common questions about mortgage payoff
What is a mortgage payoff calculator?
A mortgage payoff calculator estimates when your home loan will be paid off based on your current balance, interest rate, and payment amount. It also shows how extra monthly, annual, or biweekly payments change that payoff date and how much interest you save by making them.
How can I pay off my mortgage faster?
The three most common ways are adding a fixed extra amount to each monthly payment, making one additional lump-sum payment per year, and switching to a biweekly payment schedule, which results in one extra full payment every year without a large change to your budget.
Does making extra payments reduce mortgage interest?
Yes. Extra payments go directly toward your principal balance, which lowers the amount of interest that accrues in every following month. Because mortgage interest is calculated on the remaining balance, even small extra payments made early in the loan can save thousands over the full term.
How much can I save by paying extra on my mortgage?
It depends on your loan balance, interest rate, and how much extra you pay. As a general pattern, an extra $100 to $300 per month on a typical 30-year mortgage can shave several years off the loan and save tens of thousands of dollars in interest. Enter your own numbers above for an exact estimate.
Is it better to pay extra monthly or yearly?
Paying extra monthly saves slightly more interest than an equivalent lump sum once a year, because the principal is reduced sooner and stays lower for longer. That said, an annual extra payment, such as from a tax refund or bonus, is still highly effective and easier for many households to plan around.
Can I use this calculator for any home loan?
Yes. This calculator works for conventional, FHA, VA, and most fixed-rate home loans. It is not designed for adjustable-rate mortgages where the interest rate changes over time, since it assumes your current rate stays constant for the rest of the loan.