Refinance Break-Even Calculator
Find out how many months it takes to recoup your refinance closing costs.
Your current loan and the refinance offer
Years left, not the original term.
Lender + title + appraisal fees for the refinance.
Months to break even on closing costs
19
Monthly savings: $321.69
Current monthly payment
$2,120.34
New monthly payment
$1,798.65
Interest left on current loan
$336,101
Interest on new loan
$347,515
Resetting the clock costs an extra $11,413in total interest, even with the lower monthly payment — because you're spreading the balance over more years again.
Estimate calculated from the numbers you entered. This is not financial, tax, or legal advice — always consult a qualified professional before making significant financial decisions.
How the Refinance Break-Even Calculator works
This tool compares your current mortgage payment against a refinance offer, calculates how many months it takes the monthly savings to cover the closing costs, and separately isolates the real cost of resetting your loan term back to a longer payoff period.
The formula
Break-even months = Closing costs ÷ (Current payment − New payment)The "cost of resetting the term" compares the total interest left on your current loan if you kept it as-is, against the total interest on the new loan — even at a lower rate, a longer remaining term can mean paying more interest overall.
Worked example
A homeowner paying $2,100 a month refinances to a payment of $1,850, saving $250 a month. Closing costs come to $6,000. The break-even is $6,000 ÷ $250 = 24 months — so the refinance only pays for itself if they stay in the home beyond two years.
One caveat the monthly saving hides: if the new loan restarts a 30-year term on a mortgage that was already 8 years in, the payment falls partly because the balance is being stretched over 38 total years rather than because the loan got cheaper. That can still be the right call for cash flow, but compare total interest over the life of both loans before treating the $250 as pure savings. Refinancing into a shorter term avoids the problem entirely.
Common mistakes
- Only looking at the monthly payment drop and ignoring the total interest over the new loan's full term.
- Forgetting to compare against the years REMAINING on your current loan, not its original term.
- Not accounting for how long you actually plan to stay in the home or keep the loan — a refinance that breaks even in 4 years is a bad deal if you're moving in 2.
Frequently asked questions
What counts as the break-even point?
The break-even point is how many months of lower payments it takes to recover what you spent on closing costs. If your new payment is $200/month lower and closing costs are $6,000, you break even in 30 months (2.5 years). If you plan to sell or refinance again before that point, the refinance likely isn't worth it.
Why would a refinance cost me more in total interest even if my payment goes down?
This is the most overlooked part of refinancing: if you're 10 years into a 30-year mortgage and refinance into a new 30-year loan, you're resetting the amortization clock back to year zero. Even at a lower rate, spreading the same balance over a much longer remaining period can add tens of thousands of dollars in total interest, despite the lower monthly payment. This calculator isolates that effect so you can see it clearly, separate from the rate change itself.
How do I avoid the term-reset problem?
Two common ways: refinance into a shorter term than your original loan's remaining years (e.g. refinance from 25 years remaining into a 15-year loan), which keeps your total payoff timeline roughly the same or shorter — or keep making your OLD payment amount on the new, lower-rate loan, which pays it off faster and closer to your original timeline while still capturing the rate savings.
What closing costs should I include?
Typical mortgage refinance closing costs run 2-5% of the loan amount and include the origination fee, appraisal, title insurance and search, credit report fee, and recording fees. Your Loan Estimate from the lender lists the exact figure — use that rather than a rule-of-thumb percentage when you have it.
What actually moves this number
Specific levers, and roughly what each one is worth. Not “save more” — the things that change the figure above by an amount you can measure.
Do not reset to 30 years without checking total interest
Refinancing a loan with 22 years left into a new 30-year loan lowers the payment and can raise total interest even at a lower rate. Compare against a term that matches what you have left.
Ask for a lender credit instead of the lowest rate
Taking a slightly higher rate in exchange for the lender covering closing costs shortens the break-even dramatically. If you might move or refinance again within a few years, that trade usually wins.
Check whether dropping PMI alone justifies it
If your home appreciated past 20% equity, a refinance can remove mortgage insurance even without a rate improvement. On a $350,000 loan at 0.75%, that is roughly $219 a month by itself.
Rate-and-term prices better than cash-out
Adding cash-out moves you into a worse pricing bucket. If you need both a better rate and cash, price the two separately before assuming one transaction is cheaper.
What this calculator does not cover
Every calculator simplifies, and the useful thing is knowing exactly where. These are the specific gaps between this estimate and your real situation:
- The break-even assumes you keep the new loan long enough to recover the closing costs. Selling or refinancing again before that point makes the refinance a loss.
- Resetting to a new 30-year term lowers the payment while extending the debt, which can raise total interest even at a lower rate.
- Cash-out refinances price above rate-and-term refinances, and the difference is not modeled unless you enter it.
- It cannot tell you what rates will do. A break-even is arithmetic on today's offer, not a forecast.
For anything that turns on an exact figure, use the primary sources below or a qualified professional. How these limits are decided and disclosed is described in the editorial standards.