How extra payments help
Interest is calculated from the outstanding balance. When an additional payment is applied to principal, later interest charges are calculated from a smaller balance.
Mortgage payoff planner
Compare your current schedule with an early-payoff plan
Model recurring extra payments, annual lump sums, a one-time principal payment, or a biweekly equivalent. Results assume every extra dollar is applied directly to principal.
Understand the trade-offs
A payoff plan is more than a faster end date.
Extra principal can reduce future interest, but the right strategy also depends on liquidity, other debt, retirement saving, and the terms of your mortgage.
Monthly versus lump sums
Earlier principal reductions normally create more interest savings. Compare a manageable recurring amount with annual or one-time payments from irregular income.
Biweekly equivalent
The option modeled here adds one full scheduled payment per year. Confirm how your servicer processes actual biweekly payments before changing your payment setup.
Check the loan terms
Verify that additional payments are credited to principal and review the mortgage documents for any prepayment conditions or administrative requirements.
Protect your flexibility
Money paid into home equity can be harder to access. Consider emergency savings and higher-rate debt before committing all available cash to the mortgage.
Compare opportunity cost
Paying down debt creates a predictable interest saving. Investing may offer a higher return, but it adds uncertainty, taxes, fees, and market risk.
What the estimate includes
Monthly principal and interest, the declining loan balance, recurring and one-time extra principal, an annual extra amount, and a biweekly-equivalent option.
What it does not include
Property taxes, insurance, association fees, adjustable-rate changes, lender fees, late charges, escrow, tax effects, or a formal payoff-statement amount.
Before you act
Use the output for planning, then confirm the outstanding balance, payment allocation, payoff instructions, and exact payoff quote with the loan servicer.