⚡ Extra Mortgage Payment Calculator

See how making extra payments on your mortgage saves thousands in interest and years off your loan.

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📊 Extra Payment Impact
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With Extra Payments
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How Extra Mortgage Payments Work

Every dollar of extra principal payment reduces your outstanding balance, which reduces the interest charged in all future months. Because of this compounding effect, even modest extra payments early in a mortgage can save tens of thousands in interest and cut years off the loan term.

Best Time to Make Extra Payments

Extra payments are most impactful in the early years of a mortgage, when more of each regular payment goes to interest. Making extra payments in years 1–5 provides significantly more benefit than the same payments made in years 20–25.

Bi-Weekly Payment Strategy

Switching from monthly to bi-weekly payments (half your monthly payment every two weeks) results in 26 half-payments = 13 full payments per year instead of 12. This one extra payment per year typically saves 4–6 years on a 30-year mortgage with no noticeable change to your budget.

Should extra payments go to principal or escrow?
Always specify that extra payments should be applied to principal, not escrow or next month's payment. Contact your lender or include a note with your payment to ensure it's applied correctly. Reducing principal is what saves you interest — applying it elsewhere has no effect on your payoff timeline.