Mortgage Early Payoff Calculator

Calculate how much faster you can pay off your mortgage with extra payments.

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Inputs

$
%
Years
$

Your values stay on this device.

Results

Time Saved
Interest Saved$97,618.12
New Payoff Time22 years, 1 months

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Assumptions

  • Calculated locally from the inputs shown in this report.

Sensitivity preview

Current Balance -10%: Time Saved 8 years, 6 months

Current Balance Current: Time Saved 7 years, 11 months

Current Balance +10%: Time Saved 7 years, 5 months

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About this Mortgage Payoff

Mortgages are front-loaded with interest. By making extra principal payments, you attack the balance directly, reducing the interest charged in every subsequent month. This creates a snowball effect that can shave years off your loan.

How to use this calculator

  1. Enter your Current Loan Balance.
  2. Enter your Interest Rate and remaining Term.
  3. Add an Extra Monthly Payment to see the impact.

Accuracy and testing

Review formula sources, default test cases, assumptions, unit handling, rounding rules, and changelog for this calculator.

View accuracy page

How this calculator works

The calculator runs two amortization schedules. The first pays only the required amount. The second adds your extra payment to the principal every month. It tracks how quickly the balance hits zero in both scenarios.

Inputs explained

Current Balance

The amount you still owe (principal only), not the original loan amount.

Remaining Term

How many years are left on your contract. If you are 5 years into a 30-year mortgage, enter 25.

Extra Monthly Payment

Additional money paid over and above your required monthly payment, designated for principal.

Understanding your results

The Time Saved highlights how much sooner you will be debt-free. The Interest Saved is often a shocking amount—money that stays in your pocket instead of going to the bank.

Example scenarios

Small Extra Payment

$200k loan at 6% for 30 years. Payment $1,200. Adding just $100/mo saves ~$47,000 in interest and pays off 4.5 years early.

Bi-Weekly Strategy

Paying half your monthly payment every 2 weeks results in 13 full payments per year (one extra month). This typically shaves 4-6 years off a 30-year loan.

Key Features

  • Time Saved Calculation
  • Interest Savings
  • Extra Payment Logic

Things to Keep in Mind

Assumes the extra payment amount stays constant for the entire remaining term. Does not account for lump sum payments.

Tips & Best Practices

  • Make sure your lender applies extra payments to the *principal*, not to future interest.
  • Ensure there are no 'prepayment penalties' on your mortgage (most modern loans do not have them).
  • Compare the interest saved vs investing that extra money. If your rate is low (e.g. 3%), investing might yield higher returns.

Glossary of Terms

Principal
The actual money borrowed that you are repaying.
Amortization
The schedule of payments that pays off a loan over time.

Frequently Asked Questions

Is it better to pay off my mortgage or invest?
It depends on the interest rate. If your mortgage rate is high (6-7%), paying it off is a guaranteed 6-7% return. If it is low (3%), investing in the market (avg 7-10%) usually builds more wealth.
Can I pay off my mortgage early?
Yes, you can pay off almost any standard residential mortgage early without penalty. This saves you all remaining interest.