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Mortgage extra payment & savings calculator

Calculate total interest savings and years saved by making extra monthly principal payments.

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Scenario calculator

Calculate total interest savings and years saved by making extra monthly principal payments.

Scenario math only—not financial, investment, tax, accounting, or lending advice. Rates, fees, compounding, timing, taxes, insurance, rounding, and provider rules can change the real result.

Mortgage loan balanceAnnual interest rate (%)Original term (years)Extra monthly principal payment