Refinance Break-Even Point: How to Work It Out
Refinancing only pays off if you stay long enough to earn back the closing costs. Learn the one-line formula for the break-even point, with a full example.
By Muhammad AhmadPublished Last reviewed 8 min read
Not financial or tax advice. This guide explains how the numbers work, with examples. It cannot know your whole situation, so check big decisions with a licensed professional or the official source. See the disclaimer.
The quick answer
- Break-even point = closing costs ÷ monthly savings. The answer is the number of months until the refinance has paid for itself.
- Example: $9,000 of costs and $242 a month saved gives about 37 months, a little over three years.
- Costs are real. The Federal Reserve's refinancing guide says it is not unusual to pay 3% to 6% of your outstanding principal in refinancing fees.
- Stay past the break-even date. If you sell or refinance again before it, you lose money.
- Watch the term. A new 30-year loan resets the clock and can raise the interest you pay over time.
A lower rate sounds like free money, but a refinance is a new loan, and a new loan has costs. You pay fees to get it. The question is simple: how long does it take for the monthly savings to cover those fees? That time is called the break-even point. If you will stay in the home longer than that, the refinance helps. If not, it hurts.
The formula
The Federal Reserve's consumer guide to mortgage refinancing gives the same steps:
- Subtract your new monthly payment from your current one. That is your monthly savings.
- Add up all the costs of the refinance. That is your total cost.
- Divide the total cost by the monthly savings. The result is the number of months to break even.
The guide also adds a step for people who itemize deductions, because mortgage interest is deductible only then. In that case you multiply the monthly savings by (1 minus your tax rate), since a lower payment also means a smaller deduction. Most households take the standard deduction, so for them the simple version is the right one.
A full example
These are example numbers, not a quote.
- Current loan: $300,000 balance, 7.5% rate, 28 years left. The payment (principal and interest) is about $2,139.
- New loan: $300,000, 6.5%, 30 years. The payment is about $1,896.
- Closing costs: 3% of the loan, which is $9,000.
Monthly savings: $2,139 − $1,896 = about $242. Break-even: $9,000 ÷ $242 = about 37 months, or 3 years and 1 month.
| If you stay | Savings so far | Minus costs | Net result |
|---|---|---|---|
| 2 years | $5,818 | $9,000 | −$3,182 |
| 3 years | $8,726 | $9,000 | −$274 |
| 5 years | $14,544 | $9,000 | +$5,544 |
| 10 years | $29,088 | $9,000 | +$20,088 |
If this homeowner moves after two years, the refinance cost $3,182 more than it saved. After five years it is ahead by about $5,500.
How the cost level changes the answer
Closing costs are the biggest lever. Here is the same loan, with $242 saved a month, at different cost levels:
| Costs (percent of $300,000) | Dollars | Break-even |
|---|---|---|
| 1.5% | $4,500 | About 19 months |
| 2% | $6,000 | About 25 months |
| 3% | $9,000 | About 37 months |
| 4% | $12,000 | About 50 months |
| 5% | $15,000 | About 62 months |
The Federal Reserve guide says 3% to 6% of your outstanding principal in fees is not unusual. At the top of that range, the break-even point in this example is more than five years away.
What counts as a cost
- Lender fees: origination or application fees, and any points you pay to buy a lower rate.
- Third-party fees: appraisal, credit report, title search and title insurance, recording fees.
- Costs of leaving your old loan: a prepayment penalty if your loan has one.
The Consumer Financial Protection Bureau's Loan Estimate form lists the costs of a loan offer in a standard layout. Ask for estimates from several lenders and compare them. The CFPB says that is the best way to tell whether an offer is competitive.
Three traps to avoid
Trap 1: resetting the clock
In the example above, the borrower had 28 years left and took a new 30-year loan. The payment fell, but the borrower now has two more years of payments. Over the whole loan, the total interest in this example is still lower: about $382,600 on the new loan against about $418,600 on the old one, before the $9,000 of costs. But that is not always true, and if you have already paid many years on a 30-year loan, a new 30-year loan can raise your total interest.
A cleaner comparison keeps the same end date. If the new loan also ended in 28 years, the payment would be about $1,941, saving about $198 a month, and the break-even point would be about 46 months. You get a smaller monthly saving, but you finish on time.
Trap 2: rolling the costs into the loan
Many lenders let you add the closing costs to the new loan, so you pay nothing at the closing table. That is not free. Adding $9,000 to a $300,000 balance at 6.5% makes the payment about $1,953, and you pay interest on the $9,000 for the life of the loan. The monthly saving falls from about $242 to about $186. Your break-even point does not disappear. It just becomes a longer way to the same place.
Trap 3: moving or refinancing again too soon
The break-even point only works if you keep the loan that long. If you may move in two or three years, a refinance with a 37-month break-even is a bad bet. If rates are expected to fall further, a second refinance restarts the costs and the clock again.
Is a bigger rate drop always needed?
There is no magic number. You may hear rules of thumb about how big the rate drop must be, but the break-even calculation is better than any rule of thumb. A small rate drop with low costs can break even fast. A big rate drop with high costs can take years. Run the numbers for the loan you are offered.
To see the new payment for a given balance, rate and term, use the mortgage calculator. Compare it with your current payment, and divide the costs by the difference.
Other reasons people refinance
- To shorten the term. Moving from 30 years to 15 years raises the payment but cuts the interest a lot.
- To get out of an adjustable rate. A fixed rate gives a payment that cannot change.
- To drop mortgage insurance. If your home has gained value, a new loan with 20% equity may remove PMI. Ask your servicer first, because you may be able to cancel PMI without refinancing.
- To take cash out. This raises your balance and your payment, so treat it as a new loan for a new purpose.
Each reason has a different test. The break-even formula is the right test when your goal is a lower payment.
Frequently asked questions
How long should I plan to stay in my home after refinancing?
Longer than your break-even point, with some margin. If your break-even point is 37 months, staying five years or more makes the refinance clearly worthwhile in the example above.
What are typical closing costs for a refinance?
The Federal Reserve's guide says it is not unusual to pay 3% to 6% of your outstanding principal in refinancing fees. Your own Loan Estimate shows the real costs for your loan.
Should I refinance if rates drop by one point?
It depends on the costs and how long you will stay. With low costs, a one-point drop can pay off in a year or two. With high costs, it may take five years or more. Calculate the break-even point before you decide.
Can I refinance with no closing costs?
Some lenders offer loans with fewer upfront costs, usually through a higher rate or by adding costs to the loan. Neither is free, so compare the full Loan Estimate, not only the cash due at closing.
Does refinancing hurt my credit?
A new loan application can cause a small, short-term dip in your credit score because of the credit check. The effect is usually small, but avoid opening other new credit at the same time.
The bottom line
Do the division before you sign: total costs divided by monthly savings. If you will stay in the home well beyond that number of months, and the new loan does not stretch your payments out too far, a refinance can be a smart move. If not, the best refinance is the one you skip.
Sources
- A Consumer's Guide to Mortgage Refinancings, Federal Reserve Board
- Loan Estimate explainer, Consumer Financial Protection Bureau
- When can I remove private mortgage insurance (PMI) from my loan?, Consumer Financial Protection Bureau
The loan figures above are examples calculated with the standard fixed-rate loan formula. They exclude taxes, insurance and any prepayment penalty. Your rate and costs will differ. Last reviewed October 12, 2026.
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This guide is for education, not financial, tax or medical advice. See our editorial policy. Spotted a mistake? Tell me.