Mortgage Prepayment Savings Calculator
Calculate how much time and interest you save by making extra principal payments on your mortgage.
Calculation Inputs
Calculation Results
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Enter inputs on the left and click Calculate to view results.
Formula & Methodology
Simulate amortization with extra payment; count months to zero balance
Even small additional principal payments dramatically reduce total interest and loan duration.
Frequently Asked Questions
Does my lender apply extra payments to principal?
Specify "apply to principal" when making extra payments. Without this instruction, lenders may apply it to next month's payment.