Free Mortgage Payoff Calculator - Accelerate Your Payoff
Calculate your mortgage payoff date and see how extra payments accelerate your payoff timeline
Formula & Methodology
This calculator simulates the month-by-month amortization of your mortgage. By adding an extra payment, you reduce the principal faster, which in turn reduces the interest charged in subsequent months, creating a compounding effect that shortens your payoff timeline and saves you money.
- Monthly Interest = Balance × (Interest Rate / 100 / 12)
- New Balance = Balance + Monthly Interest - (Monthly Payment + Extra Payment)
Worked Example
Using the Mortgage Payoff Calculator: apply the formula above to your input values. For instance, Monthly Interest = Balance × (Interest Rate / 100 / 12), then New Balance = Balance + Monthly Interest - (Monthly Payment + Extra Payment). The tool performs each step instantly and shows the result.
Frequently Asked Questions
How can I pay off my mortgage early?
Extra principal payments, biweekly schedules or lump sums shorten the term and cut tens of thousands in interest.
How much interest do early payments save?
Because mortgage interest is front-loaded, extra principal early in the loan saves the most over its life.
Should I pay off the mortgage or invest?
It depends on your rate versus expected investment returns and your comfort with debt; this tool shows the payoff side.