Mortgage Overpayment Calculator
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Mortgage Payoff Calculator

Find out when you'll pay off your mortgage and how much extra you need to pay monthly to reach your target payoff date.

Loan Details

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Payoff Results

Current Payoff Time

Extra Payment Needed

Current PlanTarget Plan
Monthly Payment
Total Interest
Total Cost
Payoff Time
Interest Saved

How the Mortgage Payoff Calculator Works

This calculator determines two things: how long it will take to pay off your mortgage at your current payment rate, and how much extra you need to pay each month to reach a target payoff date.

The "extra payment needed" is the additional amount on top of your current payment required to fully amortize the loan within your target timeframe.

Strategies to Pay Off Your Mortgage Faster

  • Biweekly payments — Pay half your monthly payment every two weeks. You'll make 26 half-payments (13 full payments) per year instead of 12.
  • Round up — Round your payment up to the nearest $100. Small increases add up over decades.
  • Annual lump sums — Apply tax refunds, bonuses, or other windfalls directly to principal.
  • Refinance — If rates have dropped, refinancing to a shorter term can save significantly on interest.