Mortgage Payoff Calculator

Paying off your mortgage early means making payments beyond the required minimum so the loan is cleared before the end of its scheduled term. Because mortgage interest is charged on the outstanding balance, every extra dollar you put toward principal removes that dollar from all future interest calculations — which is why even modest extra payments can have an outsized impact over a long loan.

The mechanics are simple but powerful. A standard mortgage payment is split between interest and principal, and in the early years most of it goes to interest. When you add an extra amount, that entire extra goes straight to principal, shrinking the balance faster than the schedule assumes. A smaller balance means less interest next month, so more of your regular payment also starts attacking principal — a compounding effect that accelerates over time.

There are several popular strategies. Adding a fixed extra amount each month is the simplest. Making biweekly payments — half your monthly payment every two weeks — results in 13 full payments a year instead of 12, painlessly shaving years off a 30-year loan. Some people apply windfalls like bonuses or tax refunds directly to principal. All achieve the same goal: less time in debt and less interest paid.

The savings can be striking. On a typical 30-year mortgage, an extra one or two hundred dollars a month can cut the term by several years and save a five-figure sum in interest. The earlier in the loan you start, the greater the benefit, because that's when the balance — and therefore the interest — is highest.

Before committing, weigh a few things. Confirm your loan has no prepayment penalty, and make sure extra payments are applied to principal rather than future interest. Consider whether your money might earn more invested elsewhere, especially if your mortgage rate is low and you haven't maxed tax-advantaged retirement accounts or built an emergency fund. For many people, though, the guaranteed return of avoided interest and the peace of mind of owning their home outright make early payoff a compelling goal. This calculator quantifies exactly what it's worth for your loan.