Mortgage Payoff Calculator

See exactly how much faster — and how much cheaper — your mortgage can be paid off by adding extra payments each month.

Last updated:
$
%
years
$
New monthly payment
$2,012
P&I + $200 extra
Payoff time
21 yr 8 mo
Total interest
$242,158
Interest saved
$86,555
6 yr 4 mo sooner
Compared to no extra payments
Without extra: 28 years · $328,713 interest.

How it works

  1. 1
    Enter your current loan balance

    Not the original loan — the amount still owed today.

  2. 2
    Add your interest rate and remaining term

    Find these on your most recent mortgage statement.

  3. 3
    Try an extra monthly payment

    Even $100–$200 extra can knock years off your mortgage.

Paying off your mortgage early is one of the most powerful guaranteed-return moves available. Every extra dollar of principal payment saves you years of compounding interest at your mortgage rate.

Here's why it works so well: on a typical 30-year mortgage, roughly 60% of your early payments go to interest. Extra principal payments skip that interest entirely. $200 extra per month on a $300,000, 30-year mortgage at 6.5% saves around $90,000 in interest and pays the loan off ~7 years sooner.

Before accelerating your mortgage, make sure you have an emergency fund (3–6 months of expenses), are taking full advantage of any employer 401(k) match, and have paid off higher-interest debt like credit cards. Extra mortgage payments are great, but they're illiquid — you can't easily get that money back.

Other ways to pay off a mortgage faster include refinancing to a shorter term (15-year), making bi-weekly instead of monthly payments, and applying tax refunds or bonuses directly to principal.

Example scenarios

$300k loan @ 6.5%, +$200/mo

Pays off ~7 years sooner. Saves ~$90,000 in interest.

$300k loan @ 6.5%, +$500/mo

Pays off ~12 years sooner. Saves ~$140,000+ in interest.

$500k loan @ 7%, +$300/mo

Pays off ~6 years sooner. Saves ~$120,000+ in interest.

$200k loan @ 5.5%, +$150/mo

Pays off ~5 years sooner. Saves ~$40,000 in interest.

Common questions

How does paying extra on my mortgage help?

Every extra dollar reduces principal, which cuts the interest accrued every following month. Even $100/month extra can shave years off a 30-year mortgage and save tens of thousands in interest.

Should I pay off my mortgage early or invest?

If your mortgage rate is below long-term market returns (~7%) and you have other goals, investing may win mathematically. But guaranteed debt-free returns and the peace of mind of owning your home are powerful — there's no wrong answer.

Are there penalties for paying off a mortgage early?

Most US mortgages have no prepayment penalty, but check your loan documents. Some loans charge a fee if paid off within the first 3–5 years.

Is bi-weekly payment the same as extra payment?

Bi-weekly produces one extra full payment per year (26 half-payments = 13 monthly). It's equivalent to adding ~1/12 of your monthly payment each month.

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