Mortgage Payoff Calculator

This free online mortgage payment calculator helps you figure out exactly how extra payments reduce your mortgage balance and save you money. Choose one of two modes depending on what information you have:

1. "I Know My Loan Details" — enter your original loan amount, loan term, interest rate, and how much time remains. The calculator will compute your remaining balance and current monthly payment automatically. This mode works best for new loans or loans you've never made extra payments on.
2. "I Know My Balance" — enter your current unpaid principal balance, monthly payment, and interest rate directly from your mortgage statement. The calculator will determine your remaining term. Use this mode if you've already made extra payments or aren't sure of the original loan details.

Then add extra payments — monthly, yearly, or a one-time lump sum — and watch the results update instantly. Toggle biweekly payments to see how splitting your payment into two payments every two weeks can shave years off your mortgage. No "calculate" button needed — this mtg payment calculator updates in real time.

Every extra dollar you put toward your mortgage goes directly to reducing the principal balance. Since interest is calculated on the outstanding balance each month, a lower principal means less interest accrues — creating a compounding effect that accelerates your payoff.

For example, on a $400,000 loan at 6.5% for 30 years, paying just $200 extra per month saves over $100,000 in total interest and pays off the loan roughly 7 years early. Even a small amount like $50/month can save $30,000+ over the life of the loan. Use the calculate mortgage payment feature above to see your exact savings.

• Monthly extra payments — the most impactful strategy because the savings compound every single month. Even rounding up to the nearest $100 helps.
• Annual lump-sum payments — great for using tax refunds, bonuses, or year-end savings. Applied once per year toward principal.
• One-time extra payment — an inheritance, gift, or windfall applied immediately to slash your balance and the interest it generates.

Biweekly payments are one of the simplest mortgage payoff strategies. Instead of making one monthly payment, you pay half the amount every two weeks. Since there are 52 weeks in a year, you end up making 26 half-payments — the equivalent of 13 full monthly payments instead of 12.

That one extra payment per year goes entirely toward principal. On a typical 30-year mortgage, this can shave 4 to 6 years off your loan and save tens of thousands in interest — all without a dramatic change to your cash flow. This mortgage payment calculator by payment frequency shows you the exact impact.

Biweekly payments are especially convenient if you receive a paycheck every two weeks. Simply align your mortgage half-payment with your pay cycle, and the savings happen automatically.

Paying off your mortgage early isn't always the best financial move. Here are the key factors to consider before funneling extra cash toward your mortgage:

• High-interest debt first — credit cards charging 15-25% should be paid off before making extra mortgage payments at 5-7%. The interest savings are dramatically higher.
• Emergency fund — maintain 3-6 months of expenses in savings before accelerating mortgage payoff. Once money goes into your mortgage, you can't easily access it.
• Retirement contributions — max out tax-advantaged accounts (401k, IRA) first. The tax benefits and potential market returns often exceed mortgage interest savings.
• Prepayment penalties — check your loan documents. Some mortgages charge a penalty for early payoff, though this is uncommon for loans originated after 2014.
• Peace of mind — for those approaching retirement or who simply value the security of owning their home outright, the guaranteed "return" of eliminating mortgage interest is hard to beat.