UtilibyWritten by the Utiliby editorial team · Last updated October 15, 2026 · Rules and formulas reviewed October 2026
What this free online refinance break-even calculator does
Every refinance has a price. You pay closing costs, and sometimes discount points, before you see any benefit. The break-even point is the moment the benefit catches up with the price. It is the single most useful number for deciding whether a refinance is worth it, because it turns a vague hope of "saving money" into a date you can compare with your plans.
This free online refinance break-even calculator finds that date for you. It compares your current mortgage with a new offer, counts the savings month by month, and tells you in which month you have recovered your costs. It also shows the break-even on an interest basis, the net saving for the years you plan to stay, the highest new rate that would still pay off, a break-even grid for different rates and fees, and a chart of your savings over time. Everything runs in your browser, so your numbers stay private.
How to use the refinance break-even calculator
- Enter the current loan. Use today's balance, your rate and the years left. If you know your real principal and interest payment, enter it in the optional box.
- Enter the offer. Put in the quoted rate and choose a term. Add closing costs and points as percentages, and any fixed fees, including a prepayment penalty on the old loan.
- Choose how you pay the costs. Pay at closing, or roll them into the new loan.
- Set how long you will stay. This is the most important input after the rate. Be honest and conservative.
- Read the verdict and the timeline. The headline says whether the refinance is worth it for your stay, and the bar shows the months spent repaying costs against the months of pure savings.
- Explore. The By years stayed tab shows the net saving at each length of stay, and the grid shows how rates and fees move the break-even.
How the break-even is calculated
The quick formula is closing costs ÷ monthly saving = months to break even. It works well when the new loan has a similar term to the old one, and many articles stop there. This calculator goes further, because the quick formula can be wrong in three common cases: when you extend the term, when you roll in costs, and when you make extra payments. Instead it adds up your payments month by month on both loans and finds the first month in which the total saved, less any costs paid at closing, reaches zero.
| Measure | What it counts |
|---|---|
| Payment break-even | Cash you keep: old payment minus new payment, month by month, against the costs paid at closing |
| Interest break-even | Interest avoided on the old loan minus interest on the new loan, against all costs |
| Net after your stay | The saving in each basis at the end of the years you plan to stay |
| Rate needed | The highest new rate that still breaks even within your stay |
Why two break-evens? The payment view tells you when your wallet is ahead. The interest view tells you when the loan has become cheaper. They can differ. When the new term is the same as the time you have left, the new loan pays down principal faster than the old one, so interest is saved sooner than the payment drops. When the new term is longer, the payment saving is partly just spread-out repayment, so the interest view is the more cautious test.
Worked example
Suppose you owe 250,000 at 7.0% with 28 years left, and you are offered 6.0% on a new 30-year loan with costs of 3%, or 7,500. Your current payment is about 1,699 and the new one about 1,499, so you save about 200 a month. The quick formula gives 7,500 ÷ 200 = 37.5, so you break even in about 38 months, a little over three years. If you plan to stay five years, you come out about 4,500 ahead after costs. If you move in two years, you are about 2,700 behind.
Now suppose the new loan is 28 years, the same as you have left. The payment saving shrinks to about 161 a month, so the payment break-even moves to month 47. But the interest break-even is month 36, and the lifetime saving rises to roughly 46,700, because you are not restarting the clock. This is why checking both measures, and the term, matters.
How long you plan to stay changes everything
The break-even only means something compared with your own timeline. If you break even in 38 months and expect to stay ten years, the refinance is very likely worth it. If you expect to move in two years, it is not, however big the monthly saving looks. The By years stayed tab shows the net saving after 1, 2, 3, 5, 7, 10, 15 and 30 years, so you can read the answer for several possible futures at once.
People are often too optimistic about how long they will stay. Jobs change, families grow and markets move. A cautious approach is to test a stay shorter than your guess. If the refinance still works at three years, it is a robust choice. If it works only at ten, you are betting on staying put.
Closing costs, points and fees to include
The break-even is only as good as the cost figure. Refinance costs commonly fall in a range of around 2% to 6% of the loan, and they include lender fees, appraisal, title and recording charges, and prepaid items. Your Loan Estimate lists them. Add discount points, which cost 1% of the loan per point, and any prepayment penalty on the current loan. Do not include costs you would pay anyway, such as the ongoing escrow for taxes and insurance, because they do not change the saving.
If a lender advertises "no closing costs", the costs are still there. They are either rolled into the loan or paid through a higher rate. Enter the quoted rate and choose Roll into the new loan to see the true result.
The rate you need to break even
Many borrowers ask how far rates must fall before a refinance makes sense. The old advice of one full percentage point is only a rough guide, because it ignores the loan size, the costs and your stay. The calculator replaces the guess with a number. It tests lower and higher rates and reports the highest new rate that still repays your costs within the years you plan to stay. If the best rate you can find is above it, wait or negotiate fees. If it is well below it, you have margin.
When the break-even test is not enough
- You want to shorten the loan. A shorter term can have a longer break-even on payments but a large interest saving.
- You are removing mortgage insurance. The saving may include insurance that this tool does not model.
- You are moving from an adjustable rate. The value of certainty can matter more than the payment.
- You are taking cash out. The cash is not a saving, so use a cash-out calculator.
In these cases the break-even is still a useful guide, but it should not be the only test. Combine it with your goals and a Loan Estimate from your lender.
Common mistakes
- Using the original loan amount instead of today's balance.
- Leaving out points or a prepayment penalty.
- Counting the payment saving only when the term is longer.
- Assuming you will stay for decades.
- Ignoring the cost of repeated refinancing. If you refinance again, you start the clock over, so keep the loan longer than the break-even.
Related refinance tools and guides
This calculator is one of a set of free refinance tools on Utiliby. Depending on what you are deciding, these may help next.
- Mortgage Refinance Calculator: see the full savings and total interest.
- Refinance Closing Costs Calculator: build an accurate cost figure.
- Refinance Loan Term Calculator: compare terms.
For background reading:
- How to Calculate Mortgage Refinance Savings
- Refinancing with Bad Credit, Self-Employed Income or Negative Equity
Privacy, accuracy and limits
The calculator runs entirely in your browser. The figures you enter are not sent to a server and are not stored, and reloading the page returns the example. Files you download are created on your device. The model assumes fixed rates and level payments and does not cover adjustable-rate loans, interest-only periods or balloon payments. Taxes, insurance and mortgage insurance are not modelled. Real fees, rates and rules vary, so confirm every figure with a Loan Estimate.
Frequently asked questions
What is a refinance break-even calculator?
It finds how many months it takes for the money you save on your monthly payment to equal the closing costs and points you pay to refinance. That month is the break-even point. Keep the loan longer than that and the refinance saves you money.
How do I calculate my refinance break-even point?
Divide the total costs by the monthly saving. With 7,500 in costs and a 200 monthly saving, you break even after about 38 months. This calculator does the same maths month by month, so it also handles extra payments, rolled-in costs and different terms.
Is refinancing worth it?
It is worth it when you will keep the loan well past the break-even month and the new terms suit your goals. The verdict compares your break-even with the years you plan to stay. If you may move sooner than the break-even, refinancing usually loses money.
What is a good break-even period for a refinance?
There is no single rule. Many people want to break even within two to three years, and a longer stay can justify a longer period. The right answer is the one that is shorter than the time you expect to keep the loan.
What is the difference between the two break-even months?
One counts payments saved, which is cash in your pocket. The other counts interest saved, which is the true cost of borrowing. They differ when the term changes or when the new loan pays down principal faster. Look at both before deciding.
Do closing costs include discount points?
Points are a separate cost in the calculator, and both are added together as your total cost. Enter closing costs and points as a percentage of the loan, then add fixed fees such as an appraisal or a penalty on the old loan.
What happens if I roll closing costs into the loan?
You pay nothing at closing, but the loan is larger, so the payment saving is smaller and you pay interest on the costs. The break-even then measures the payment saving against the extra cost. Choose Roll into the new loan to compare.
Why is my break-even never reached?
The monthly saving is zero or negative, or it is too small to repay the costs before the old loan would have ended. Try lower costs, a lower rate or a shorter stay in the grid to see what would work.
What new rate do I need to break even in time?
The calculator works out the highest new rate that still repays your costs within the years you plan to stay. If your quote is higher than that, the refinance probably does not pay off for you.
How does extending the loan term affect break-even?
A longer term lowers the payment, which can make the payment break-even look quick, but you borrow for more years and may pay more total interest. Compare the two break-even figures and the lifetime interest saved.
Does a lower payment always mean I save money?
No. A lower payment can come from a longer term, which raises total interest. That is why this tool shows the interest break-even and the net interest saved, not just the payment.
How many years should I plan to stay?
Enter your honest estimate of how long you will keep the loan, not the longest it could last. People move, sell or refinance again sooner than they expect, so also check shorter stays in the By years stayed tab.
What is the break-even grid?
It is a table of break-even months for different new rates and different closing cost levels. Green cells break even within your planned stay. It shows how much a lower rate or lower fees would help.
Does the break-even include taxes and insurance?
No. Taxes and insurance normally stay the same after a refinance, so they do not change the saving. Mortgage insurance can change, so check your Loan Estimate for it.
Can I use it for a cash-out refinance?
This tool compares rate and term. If you take cash out, the cash is not a saving, so use the cash-out refinance calculator, which shows the cash available, the new payment and the cost of the extra borrowing.
Is my information private?
Yes. The calculator runs in your browser. Nothing you enter is sent to a server, saved or shared, and reloading the page resets it.
Is this refinance break-even calculator free?
Yes. It is a free online calculator with no sign-up, trial or limit. You can print or download the results.
Sources and further reading
- Consumer Financial Protection Bureau, "When should I refinance my mortgage?" and "What is a mortgage refinance?" (consumerfinance.gov/ask-cfpb).
- Consumer Financial Protection Bureau, Loan Estimate and Closing Disclosure explainers (consumerfinance.gov).
- Freddie Mac, Primary Mortgage Market Survey, for average US mortgage rates (freddiemac.com/pmms).
- Internal Revenue Service, Publication 936, Home Mortgage Interest Deduction, on points paid on a refinance (irs.gov).
- Standard loan amortization formulas for fixed-rate mortgages, as used in lender disclosures under the Truth in Lending Act.
Sources were consulted in October 2026. Standards and rules can change, so always check the official page for your situation.