Big plans start with your numbers.
Estimate your monthly mortgage payment, understand your debt ratios, and compare the long-term impact of your choices.
Extra Payment Calculator
Uses a fixed rate and your selected remaining term. The lump sum is applied immediately, then extra principal is added monthly. Excludes taxes, insurance, fees and any prepayment penalties. Confirm principal-only instructions with your servicer.
About this calculator
See how extra principal payments cut interest and shorten your loan.
Every extra dollar you put toward principal is a dollar that stops collecting interest. Even a modest extra payment each month, or a one-time lump sum, can take years off a mortgage.
Enter your current balance, rate and remaining term, then add an extra monthly amount, a lump sum, or both. You will see how much interest you could save and how much sooner the loan could be paid off. Check with your servicer that extra payments are applied to principal only.
You don’t have to figure this out alone.
Tell us what you’re working toward. We’ll help you understand your next step.