🏠 Finance Tool

Mortgage Payoff Calculator

See how extra payments, biweekly schedules, or lump sums can shorten your mortgage and save thousands in interest. Compare original vs accelerated payoff side by side.

I know my remaining loan term

Enter original loan amount + years remaining. Best for new loans or loans on schedule.

I know my current balance & payment

Enter unpaid balance + monthly payment. Ideal for checking your latest mortgage statement.

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Mortgage Details

Known remaining term

Original Loan Amount

Annual Rate (%)

Remaining Term (Yrs)

Extra Payments (Optional)

Extra Monthly Payment

🔄 Biweekly Payments

Pay half monthly every 2 weeks = 13 full payments/yr

Original Schedule

Dec 2050

300 payments remaining

Monthly Payment$1,896

Total Interest$318,880

Total Paid$568,800

Accelerated Schedule

Dec 2050

No extra payments

Monthly Payment$1,896

Total Interest$318,880

Total Paid$568,800

📊 Balance: Original vs Accelerated

📋 Payoff Schedule

How to Pay Off Your Mortgage Faster

Our mortgage payoff calculator shows exactly how extra payments, biweekly schedules, or lump sums affect your loan's payoff date and total interest. Enter your current loan details and try different extra payment amounts — the side-by-side comparison shows original vs accelerated schedule instantly. For a full mortgage payment with taxes and insurance, also use our mortgage calculator and amortization calculator.

💡 Extra Monthly Payments

Extra $100/month on $300K at 6.5% (25yr) = ~$28,000 saved
Extra $300/month = ~$67,000 saved + 6 years shorter
Extra $500/month = ~$97,000 saved + 9 years shorter

Every dollar applied to principal now saves much more in future interest.

🔄 Biweekly Payment Strategy

Paying half your monthly payment every 2 weeks = 26 half-payments = 13 full payments/year instead of 12.

On a $300K, 6.5%, 25-year mortgage: biweekly payments can save ~$30,000 in interest and cut ~3 years off the loan.

No extra budget needed — just pay more frequently. Toggle the biweekly switch above to see your savings.

💰 Lump-Sum Extra Payments

Tax refunds, bonuses, or inheritance can make a big dent
A $10,000 lump sum early in the loan can save $25,000+ in interest
Earlier in the loan = more savings (interest compounds on balance)
Check your mortgage for prepayment penalties before making large payments
Always confirm extra payments are applied to principal, not future payments

⚖️ Should You Pay Off Early?

Pay off early if: Mortgage rate > expected investment return, near retirement, low risk tolerance
Invest instead if: Mortgage rate is low (<4%), maxing tax-advantaged accounts first, long investment horizon
Prioritize first: Emergency fund (3–6 months), high-interest debt (credit cards)

A 6.5% mortgage interest "saved" is a guaranteed 6.5% return — hard to beat risk-free.

Frequently Asked Questions

Savings depend on your loan balance, interest rate, and how much extra you pay. As a general example: on a $300,000 mortgage at 6.5% with 25 years remaining, paying an extra $200/month saves approximately $50,000 in interest and shortens the loan by about 5 years. Use our mortgage payoff calculator above to see your exact savings.

Instead of making 12 monthly payments, you make a half-payment every 2 weeks. Since there are 52 weeks in a year, this equals 26 half-payments — or 13 full monthly payments per year. The extra full payment each year reduces your principal faster. Important: confirm with your lender that biweekly payments are applied directly to principal and not held in a holding account.

Mode 1 (known term) is for when you know your original loan amount and how many years are left — useful if your loan has followed its original schedule. Mode 2 (balance + payment) is for when you only have your current unpaid balance and monthly payment from your latest statement — the calculator derives the remaining term automatically. Both give accurate payoff projections.

For most mortgages, extra payments reduce the loan term (you pay it off earlier) while keeping your regular monthly payment the same. Some lenders offer "recasting" — where you make a large principal payment and they recalculate a lower monthly payment over the remaining term. Our calculator models the standard approach: extra payments shorten the term. Contact your lender about recasting if you prefer lower monthly payments.

Most conventional mortgages in the US originated after 2014 do not have prepayment penalties, as the Dodd-Frank Act restricted them for qualified mortgages. However, some older loans, jumbo loans, or certain lender agreements may still include them. Always check your mortgage agreement or call your servicer before making large extra payments to ensure you won't face a penalty that erases the interest savings.