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How to Calculate the Break-Even Point on a Mortgage Refinance
The break-even point of a refinance occurs when savings equal costs. Here’s how to do the math.
Abby Badach Doyle has been writing about homeownership and mortgages for NerdWallet since 2022. Her work has been featured in outlets including The Associated Press, The Washington Post and The Seattle Times. From interactive tools to practical advice, Abby is passionate about making the homebuying journey less stressful — especially for first-time buyers.
As a reporter, she is interested in writing about innovative housing solutions (like co-living) and personal stories about how homeownership builds community and a sense of belonging.
Abby is also a musician, songwriter and producer who knows the challenge of balancing creative fulfillment with financial stability. In 2024, she produced a special episode of NerdWallet’s “Smart Money” podcast on how to navigate income swings in a creative career.
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Holden Lewis is a former NerdWallet spokesman and reporter covering mortgages and real estate. He previously worked for Bankrate, where he covered the housing boom and bust. Holden is past president of the National Association of Real Estate Editors and won numerous writing awards.
Chris Jennings is a NerdWallet editor specializing in home lending topics. He has been writing and editing about mortgages and personal finance since 2016. He enjoys simplifying complex mortgage topics for first-time homebuyers and homeowners alike. Before joining NerdWallet, he wrote and edited content for a number of respected finance brands, including Bankrate, Forbes Advisor, and GOBankingRates. Born and raised in the Chicago suburbs, Chris now calls Los Angeles home, where he lives with his wife and their dog.
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Nerdy takeaways
A mortgage refinance can save you money, but you have to pay upfront fees and costs first.
To calculate how many months to break even: Add up the total loan costs. Then, divide that by your monthly savings.
It can take a few years to break even after refinancing. If you plan to move soon, consider if it’s worth it.
Before you refinance your mortgage, figure out when you would break even. Your break-even point occurs when you begin saving money — in other words, when your accumulated savings exceed the costs of the new loan.
How long does it take to recoup refinance costs?
A mortgage refinance can help you lock in a lower interest rate and save money over the life of the loan — but those savings are often offset by upfront closing costs. Depending on your loan amount, it can take several years to recoup those costs and reach your break-even point.
Did you know...
The average cost of a mortgage refinance ranges between 2% and 6% of the outstanding loan principal.
Common reasons to refinance include:
Securing a lower interest rate to reduce your monthly payment.
Shortening the repayment term to pay off your loan faster.
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First: Add up all the costs of refinancing
The first step to calculating your break-even point is determining how much you’ll spend on fees and refinance closing costs.
When you apply to refinance, each lender will give you a Loan Estimate form detailing all the costs you’ll have to pay. You can use these numbers to estimate your total loan cost.
Refinance closing costs include:
Lender fees: Such as origination or application fees that the lender may charge, as well as any discount points that you may choose to buy.
Title costs: Including a title search and insurance.
Third-party costs: Such as an appraisal or attorney’s fees or the cost of a credit report ordered by the lender.
Escrow services: For property taxes, homeowners insurance, etc.
These costs run anywhere from 2% to 6% of your outstanding principal balance, similar to the percentage of the loan amount you’d pay for a purchase mortgage. For example: If you still owe $150,000 on your home, expect to pay $3,000 to $9,000 in refinancing fees.
It’s always a good idea to apply to more than one lender to make sure you get the best deal.
🤓Nerdy Tip
Is your mortgage less than 3 years old? Read the fine print before you refinance. Some loans have a fee, called a prepayment penalty, if you pay off your balance early.
Now that you know how much you’ll spend, it’s time to figure out how much you’ll save.
Your Loan Estimate will break down your new monthly payment, which includes principal and interest, mortgage insurance (if applicable) and escrow payments.
How to calculate it
Old monthly mortgage payment - New monthly mortgage payment = Monthly savings
Example calculation
If your old monthly payment was $2,300 and your new monthly payment is $2,100, it would look like this:
$2,300 - $2,100 = $200
In this example, you’d save $200 per month. (Nice!)
Finally: Calculate the break-even point
Now, it’s time to calculate how many months it will take to recoup your refinance costs.
How to calculate it
Total loan costs / Monthly savings = Number of months it will take to break even
Example calculation
Let's say the refinancing fees will total $5,000, and you will save $200 a month. Following the above formula:
5,000 / 200 = 25
That means it will take 25 months, or a little more than two years, to recoup the cost of refinancing. Everything beyond that 25-month break-even point will be total cost savings.
Is it always worth it to refinance?
There is some small print attached to this savings celebration. Even if rates have decreased since you took out your mortgage, your savings may vary in some circumstances, for example, if:
You extend the term of the loan: If the number of months that you’ll pay on your new refinance exceeds the number of payments that remained on your original loan — say, refinancing to a new 30-year loan — you could end up paying a boatload of extra interest.
You plan on moving soon: You won't reap the savings if you move before your break-even point.
If you’re facing any of these circumstances, you'll have to do the math and decide whether the decision is worth it.
Another way to save: Refinance to a shorter term
If you want to pay off your home loan in fewer years by refinancing to a shorter term, you stand to save more in the long run than if you maintained your original mortgage term. When you refinance to a shorter term, it’s not about having a lower monthly payment, but about saving big money in total interest.
For example: If you've been paying a 30-year mortgage for five years, you have 25 years remaining on the loan. Let’s assume your financial situation has improved since then; maybe you got a higher-paying job or paid off other debt, like a car or student loan, and you can afford to pay more on your mortgage.
If you refinance to a lower rate, you might be able to afford refinancing to a 15-year loan, or maybe a 20-year mortgage. The monthly payment might rise, but you could save thousands of dollars in interest in the long run.