Why Use This Mortgage Payoff Calculator
Paying off your mortgage early can provide financial freedom and peace of mind. This mortgage payoff calculator helps you:
- ⏱️ See Your New Payoff Date — know exactly when your mortgage will be paid off with extra payments.
- 💰 Calculate Interest Savings — see how much you save by paying extra each month.
- 📉 Track Your Progress — understand how extra payments reduce your principal faster.
- 🔁 Compare Scenarios — try different extra payment amounts to find the best strategy.
- 📜 Track Your History — save, review, and export past calculations to CSV or Excel.
- 🔒 100% Private — all calculations run locally; your data never leaves your browser.
Mortgage Payoff Formula Used by This Tool
The simulation runs month by month for both scenarios:
Without Extra Payment:
- Each month, interest is calculated on the remaining balance.
- The monthly payment covers interest, and the rest reduces principal.
- The process continues until the balance reaches zero.
With Extra Payment:
- The same process, but the extra payment is applied directly to the principal each month.
- This accelerates the payoff and reduces total interest.
Interest Saved = Total Interest (Original) – Total Interest (With Extra)
How to Use This Mortgage Payoff Calculator
- Select your account currency from the picker in the site header.
- Enter your current loan balance.
- Enter your annual interest rate.
- Enter your current monthly payment.
- Enter the extra monthly payment you plan to make.
- The tool updates instantly — see your original payoff date, new payoff date, time saved, and interest saved.
Frequently Asked Questions
What is the Mortgage Payoff Calculator?
It shows how extra monthly payments can shorten your mortgage term and reduce the total interest paid. You enter your current loan balance, rate, payment, and extra amount — and the tool tells you your new payoff date and total savings.
How much can I save by paying extra on my mortgage?
Even an extra $50-$200 per month can save thousands in interest and shave years off your loan. This calculator shows you the exact impact based on your numbers.
What is the best way to pay off my mortgage early?
Making extra payments toward principal is the most direct way. Bi-weekly payments, lump sum payments, and small monthly increases all help. Use this tool to test different scenarios.
How is interest saved calculated?
The calculator simulates your loan with and without extra payments. The difference in total interest between the two scenarios is your interest saved.
Is my data stored anywhere?
No. All calculations run locally in your browser. History and presets are saved in your browser’s localStorage — nothing is sent to a server.