Mortgage Payoff Calculator
How much sooner could you be mortgage-free? Enter your current loan, add an extra monthly amount or a one-time lump sum, and watch your payoff date move closer — along with the interest you will never pay.
The real cost of paying only the minimum
On a $320,000 balance at 6.5% with a payment of $2,023 a month, you need the full 30 years and pay about $408,143 in interest — more than the house loan itself. Now add just $200 a month to principal: the loan ends in about 23 years 11 months and total interest falls to roughly $298,991. That is $109,152 saved and 73 months of payments eliminated — from an extra amount many households can find by trimming two subscriptions and a weekly takeout.
Four proven ways to pay off a mortgage early
- Round up every payment. Pay $2,100 instead of $2,023. Painless, automatic, effective.
- One extra payment a year. A 13th payment annually (or its monthly equivalent, 1/12 extra each month) cuts about 4–6 years off a 30-year loan.
- Biweekly half-payments. 26 half-payments equal 13 full ones — see the biweekly calculator.
- Throw windfalls at principal. Tax refunds, bonuses and raises applied as lump sums — use the lump-sum fields above to model them.
Before you pay extra, check these three things
- Prepayment penalties are rare on modern US mortgages but check your note.
- Higher-interest debt first. Credit cards at 22% beat a 6.5% mortgage every time.
- Emergency fund and retirement match. Keep 3–6 months of expenses liquid, and never skip an employer's 401(k) match to prepay a mortgage.
Tell your servicer in writing to apply extra amounts to principal, and confirm on your next statement. For the month-by-month picture, open the amortization calculator, and read our strategy guide on how to pay off your mortgage early.
Your next steps
Related calculators
Mortgage Payment Calculator
Your true monthly payment with taxes, insurance & PMI.
Amortization Calculator
Every payment, principal vs interest, to payoff day.
Home Affordability Calculator
How much house your income can really carry.
Refinance Calculator
Break-even and lifetime savings, honestly totaled.
Frequently asked questions
How much can I save by paying my mortgage off early?
Is it better to pay extra monthly or one lump sum?
Should I pay off my mortgage or invest instead?
Does paying extra lower my monthly payment?
Will my lender let me pay off early?
Sources & further reading
- Consumer Financial Protection Bureau — Owning a Home hub
- Federal Housing Finance Agency (FHFA)
- Federal Reserve — consumer resources
Official sources for program rules and consumer rights. Zorvex is not affiliated with these agencies; figures here are estimates for education.
