Free Mortgage Payoff Calculator
Calculate how many months and how much interest you save by paying extra toward your mortgage principal each month. Free. No signup required.
- Principal$210,000.00 · 63%
- Total Interest$120,999.49 · 37%
For every dollar borrowed, you pay back $1.58 — interest adds 58% on top.
- Total Interest Paid$120,999.49
- Total Paid$330,999.49
ƒShow your work
- 1Monthly interest rate = 6.5% ÷ 12 = 0.5417%
- 2Simulated month-by-month: interest = balance × monthly rate, then the payment reduces the balance, until it reaches $0.
- 3Result: 183 months, $120,999.49 in total interest.
About the Free Mortgage Payoff Calculator
If you're already years into a mortgage, the question isn't what a new loan would look like — it's how much sooner you could be done with the one you have, and how much interest that actually saves, starting from exactly where your loan stands today. This calculator takes your current remaining balance and time left, rather than the original loan terms, and shows the payoff date and interest savings if you added a set amount to every payment from here forward.
It's for homeowners partway through a mortgage who are weighing an extra payment against other uses for that money — deciding whether accelerating the mortgage is worth it, using their loan's actual current numbers instead of a generic 30-year example.
Your current balance, how many months you have left, how much extra you're actually considering — none of it needs to be run through your servicer's site to get an answer. This stays private to your device.
Frequently asked questions
How much faster can I pay off my mortgage by adding extra to each payment?
It depends on your current balance, rate, and months remaining — this calculator runs your specific numbers rather than a generic estimate, since the impact of an extra payment differs a lot depending on how much interest-heavy time is left on your loan.
Is it smarter to pay extra on my mortgage or invest that money instead?
It depends on your mortgage rate compared to what you'd realistically earn investing — paying down a 7% mortgage is a guaranteed 7% return, while investment returns aren't guaranteed. There's no universal answer, but comparing your mortgage rate against a realistic expected investment return is the right framework.
Do extra mortgage payments need to be marked 'apply to principal'?
Often yes — many servicers default to applying extra amounts toward your next scheduled payment rather than directly reducing principal unless you specify otherwise. Check with your servicer, since this affects how much of the extra payment actually accelerates your payoff.
What if I can only afford a small extra amount each month?
Even a modest extra payment compounds meaningfully over years, since it reduces the balance that all future interest is calculated on. Try a few smaller amounts in this calculator to see the real tradeoff between what's affordable and how much time and interest it actually saves.
Will paying off my mortgage early hurt my credit score?
It can cause a small, typically temporary dip, since it closes a long-standing account and slightly changes your credit mix — but this effect is usually minor and short-lived compared to the interest savings from paying off the loan sooner.
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