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CalcWolf Finance Mortgage Payoff Calculator
Finance

How Fast Can You Pay Off Your Mortgage?

See how extra payments accelerate your mortgage payoff. Calculate interest saved and years cut.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

The Power of Extra Payments

Extra mortgage payments go entirely to principal — bypassing interest. On a $280,000 mortgage at 6.5%, an extra $300/month saves $95,000+ in interest and pays off the loan 8-9 years early. Even $100/month extra saves $35,000+ and cuts 3-4 years. The earlier in the loan you start, the bigger the impact because more of each payment is interest.

Best Extra Payment Strategies

Bi-weekly payments: Pay half your monthly payment every 2 weeks. This results in 26 half-payments (13 full payments) per year instead of 12 — one extra payment annually with no lifestyle change. Round up: Round your payment to the next $100 ($1,770 becomes $1,800). Annual lump sum: Apply tax refunds, bonuses, or windfalls directly to principal.

⚡ CalcWolf Insight

Making one extra mortgage payment per year (either through bi-weekly payments or a lump sum) typically pays off a 30-year mortgage in 24-25 years and saves 15-20% of total interest. This single strategy saves the average homeowner $40,000-80,000 over the life of the loan.

Frequently asked questions
Should I pay extra on my mortgage or invest?
If your mortgage rate is below 5%, investing in index funds (historical 10% return) likely earns more. Above 7%, paying the mortgage is a guaranteed return. Between 5-7%: consider splitting — some to mortgage, some to investing. Always max your 401k match first regardless of mortgage rate.
Is there a penalty for paying off a mortgage early?
Most conventional mortgages have no prepayment penalty. Some jumbo loans and older loans may have penalties in the first 3-5 years. Check your loan documents. FHA and VA loans never have prepayment penalties. Always specify that extra payments go to principal, not future payments.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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