Mortgage Payoff Calculator

Find out exactly when your mortgage will be paid off. Enter your balance, interest rate, and monthly payment to see your payoff timeline and total interest for free — then add an extra payment to see how many years and how much interest you could save.

Last updated: June 2026

A mortgage payoff calculator shows how long until your mortgage is fully paid and how much interest you’ll pay to get there. You enter your current balance, interest rate, and monthly principal-and-interest payment, and it builds a month-by-month amortization schedule to find your exact payoff date. On a typical 30-year, $300,000 loan at 6.5%, adding just $200 a month to principal with a mortgage calculator with extra payments can cut about 7 years off the term and save roughly $100,000 in interest. Not sure it’s the right move? Should you pay off your mortgage early? walks through the trade-offs. This tool uses principal and interest only — property taxes, insurance, and PMI are excluded.

Your mortgage

Principal & interest only — exclude taxes and insurance.

See how much faster you'd be debt-free.

Your payoff timeline

Time to pay off

30 yr 1 mo

361 monthly payments

Total remaining interest

$382,637

Over the life of the loan

Free — unlock full results

Unlock your full results — free

Enter your email to reveal your exact debt-free date, total interest saved, and the complete month-by-month amortization schedule.

No spam. Unsubscribe anytime. We only use your email to send your results and occasional payoff tips.

How this mortgage payoff calculator works

A mortgage is paid off through amortization: every monthly payment covers the interest accrued that month, and whatever is left chips away at your principal balance. Early in the loan most of your payment goes to interest; over time the balance falls and more of each payment reduces principal. This calculator runs that schedule month by month so you can see your true payoff date and the total interest you will pay — not a rough estimate.

The biggest lever you control is extra principal. Because interest is charged on the remaining balance, paying even a little extra each month can remove years from your loan and save tens of thousands in interest. Add an optional extra payment above to see your personalized savings.

Why paying off your mortgage early is so powerful

Mortgages are front-loaded with interest. In the first decade of a typical 30-year loan, the majority of each payment goes to the lender as interest rather than reducing what you owe. When you send extra money to principal early, you erase not just that dollar of balance but every future month of interest it would have generated. That compounding-in-reverse effect is why a modest, consistent extra payment can shave years off the term.

How much an extra payment saves

On a $300,000 mortgage at 6.5% over 30 years, even a modest extra payment toward principal removes years from the loan and saves tens of thousands in interest. The table below shows the approximate impact of different extra monthly amounts on that loan.

Estimated time and interest saved by extra monthly payment on a $300,000 mortgage at 6.5% over 30 years
Extra per monthYears savedInterest saved
$100About 4 yearsAbout $61,000
$200About 7 yearsAbout $103,000
$300About 9 yearsAbout $135,000
$500About 12.5 yearsAbout $180,000

Estimates for illustration. Enter your own balance, rate, and payment in the calculator above for figures specific to your loan.

Pros and cons of paying off your mortgage early

Accelerating your mortgage is one of the safest returns available — but it is not always the right move for everyone. Weigh both sides:

Benefits

  • A guaranteed, risk-free return equal to your mortgage rate.
  • Tens of thousands less in total interest paid.
  • Becoming debt-free years sooner, often before retirement.
  • Lower monthly obligations and more financial security.

Trade-offs

  • Cash tied up in home equity is harder to access than savings.
  • Investing may earn more if your rate is low and returns are high.
  • You could miss out on an employer retirement match.
  • A few loans charge a prepayment penalty — check first.

Practical tips to pay off your mortgage sooner

  • Round up your payment. Bumping a $1,896 payment to $2,000 sends the difference straight to principal with little impact on your budget.
  • Make biweekly payments. Paying half your payment every two weeks results in 13 full payments a year instead of 12 — one extra payment annually.
  • Apply windfalls to principal. Tax refunds, bonuses, and raises are easy to direct at the balance before they get absorbed into everyday spending.
  • Tell your servicer “principal only.” Make sure extra amounts are applied to principal, not held toward your next scheduled payment.

Frequently asked questions

How does a mortgage payoff calculator work?
It takes your current loan balance, interest rate (APR), and monthly principal-and-interest payment, then builds a month-by-month amortization schedule. Each month, interest is charged on the remaining balance and the rest of your payment reduces principal. The calculator counts the months until the balance reaches zero to find your payoff date and total remaining interest.
How can I pay off my mortgage faster?
The most reliable way is to add an extra amount to your monthly payment that goes straight to principal. Even a small extra payment shortens the term and cuts total interest because you reduce the balance that interest is charged on. Enter an extra monthly amount above to see exactly how many months and how much interest you would save.
Does the calculator include taxes and insurance?
No. This calculator uses your principal-and-interest (P&I) payment only. Property taxes, homeowners insurance, PMI, and HOA dues are not part of the loan amortization, so exclude them from the monthly payment field for an accurate payoff date.
What is the difference between APR and interest rate for this calculator?
For payoff math, enter your loan's note rate — the interest rate written on your mortgage that is actually used to accrue interest each month. A lender's advertised APR also folds in certain closing costs and fees, so it is usually slightly higher and is not the rate used to build your amortization schedule. If you only have the APR handy it will give a close estimate, but your statement's interest rate will be the most accurate.
How do I find my current loan balance and payment?
Both appear on your most recent mortgage statement or in your online servicer portal. Use your current principal balance (not the original loan amount) and your scheduled principal-and-interest payment. If your statement shows one combined payment that includes escrow for taxes and insurance, subtract the escrow portion so you enter principal and interest only.
Should I pay off my mortgage early or invest the money instead?
It depends on your mortgage rate, your tax situation, and your goals. Paying extra principal earns a guaranteed return equal to your mortgage rate and reduces risk, which is attractive when rates are high or when peace of mind matters most. Investing may earn more over the long run if your expected returns exceed your mortgage rate, but it is not guaranteed. Many people do both. Make sure you have an emergency fund and are capturing any employer retirement match before accelerating your mortgage.
Does paying off my mortgage early hurt my credit score?
Paying off a mortgage will not meaningfully hurt your credit. You may see a small, temporary dip because closing a long-standing installment account can slightly reduce your credit mix and average account age, but the effect is minor and short-lived. The benefit of being debt-free almost always outweighs a few points on a score.
Is this mortgage payoff calculator free?
Yes. The headline payoff timeline and total interest are shown instantly and free. Entering your email also unlocks your exact debt-free date, your total savings, and the full month-by-month amortization schedule at no cost. The site is supported by advertising so the tools can stay free for everyone.
Is there a penalty for paying off my mortgage early?
For most homeowners, no. The vast majority of standard 30-year and 15-year fixed mortgages written in recent years carry no prepayment penalty, so you can add extra principal or pay the loan off entirely with no fee. A minority of loans — typically some older mortgages, certain non-conforming or subprime loans, and a few adjustable-rate products — include a prepayment penalty clause that applies if you pay off the loan within the first few years. To check, look in your loan estimate, closing disclosure, or promissory note for a section titled "Prepayment Penalty," or call your servicer and ask directly. If a penalty exists, it is usually a percentage of the remaining balance (often around 1% to 2%) or a set number of months of interest, and it almost always expires after two to three years. Even when a penalty applies, paying extra after it expires — or running the numbers to see whether the interest you save exceeds the one-time penalty — often still comes out ahead. Always confirm with your servicer before making a large lump-sum payment.
At what age should you pay off your mortgage?
There is no universal right age, but a common goal is to be mortgage-free by the time you retire, often around 65, so your fixed housing cost disappears when your income drops. Carrying a mortgage into retirement is not automatically a mistake — if your rate is low and your retirement savings are on track, the money might work harder invested than paying the loan down early. The better question is whether your mortgage payment fits comfortably within your expected retirement income. Many people aim to accelerate payoff in their 40s and 50s, once higher-interest debt is gone, an emergency fund is in place, and they are capturing any employer retirement match. If being debt-free brings you peace of mind, targeting payoff before retirement is reasonable at any age. Use the calculator above to see how a consistent extra payment moves your payoff date earlier, then compare that date to your planned retirement.
What happens if I make 2 extra mortgage payments a year?
Making two extra full payments a year — beyond your normal twelve — sends a substantial amount straight to principal and can shorten a 30-year mortgage by roughly eight to ten years, depending on your rate and balance, while saving tens of thousands in interest. Because each extra payment permanently removes that principal from the balance, it also erases every future month of interest that balance would have generated, which is why the effect compounds. The earlier in the loan you start, the larger the savings, since the early years are the most interest-heavy. To do this, you can split the cost across the year — for example, set aside one-sixth of a payment each month — so the two extra payments are easier to budget. Make sure you instruct your servicer to apply the extra amounts to "principal only," or they may credit your next scheduled payment instead. Enter your loan details and an equivalent extra monthly amount above to see your exact months saved and interest saved.

Related mortgage calculators & guides

Keep planning with the rest of our free, lender-neutral tools.

Mortgage calculator with extra paymentsSee how extra monthly and one-time payments shorten your loan.Mortgage recast calculatorFind your lower payment after a one-time lump-sum principal payment.Biweekly mortgage paymentsPay half every two weeks — 13 payments a year — to finish years early.Should you pay off your mortgage early?Pros and cons, penalties, taxes, and the pay-off-vs-invest decision.