To find your refinance break even, divide your total closing costs by your monthly savings. The result is the number of months it takes to recover what you paid upfront. If that number is shorter than the time you plan to stay in your home, refinancing may pay off. If it is longer, the savings may never catch up with the costs.
TL;DR:
- Include origination, application, discount points, appraisal, title, recording, escrow, and third party fees; use your Loan Estimate rather than a generic closing cost percentage.
- Paying closing costs upfront keeps the basic calculation straightforward; financing them preserves cash but adds interest and pushes the true break even later.
- Tax adjustments can extend the timeline: $2,500 in fees divided by $91 in monthly after tax savings leaves a 27 month recovery period.
- Request at least three Loan Estimates for the same loan type and amount, compare every fee, and check your current loan for prepayment penalties.
- A rate drop of roughly 0.5 to 0.75 percentage points is only a prompt to calculate costs, not proof refinancing will pay off.
Table of Contents
- How do you calculate your break-even point step by step?
- Which costs belong in your total?
- What can change the math?
- What is a good rule of thumb for deciding?
- How do you get numbers you can trust?
- Why we focus on break-even first
- Get your break-even calculated with our team
- FAQ
- Sources
How do you calculate your break-even point step by step?
The math is straightforward once you have the right numbers. NerdWallet defines the break-even point as the time it takes for cumulative monthly savings from a new loan to equal total upfront refinancing costs. Here is how to run it:
- Write down your current monthly payment, including principal and interest, plus mortgage insurance and escrow if they are part of it.
- Get your new monthly payment, built the same way, so the two numbers compare fairly.
- Subtract the new payment from the current one to find your monthly savings.
- Add up every cash cost you will pay at closing.
- Divide total costs by monthly savings. The answer is your break-even in months.
Take a worked example. Say your refinance costs are $5,000 and your new payment is $200 lower each month. That is $5,000 ÷ $200 = 25 months, as shown in NerdWallet’s example.
Illustrative example: $5,000 in costs ÷ $200 in monthly savings = 25 months to break even.
You can also visit our mortgage calculator.
Which costs belong in your total?
Undercounting is the most common mistake we see. Your total should include every fee you pay to close the new loan:
- Origination and application fees
- Discount points, which are prepaid interest that lowers your rate (our guide to mortgage points shows how to test them against savings)
- Appraisal fee
- Title search and title insurance
- Recording fees
- Escrow and other third-party fees
The Federal Reserve's consumer guide to refinancing lists these common fees and the considerations that come with them. Closing costs are often quoted as a percentage of the loan amount, and the range varies by lender and loan profile, so rely on your own Loan Estimate rather than a general rule.
You also choose how to pay. If you pay costs in cash, your break-even is the straightforward calculation above. If you roll them into the new loan, you keep your cash, but you borrow more and pay interest on those costs for the life of the loan. That makes the true break-even later than the simple formula suggests.
What can change the math?
The basic formula is a starting point, and several factors can push your real break-even later.
Taxes. If you deduct mortgage interest, a lower rate means a smaller deduction. Your after-tax savings are then lower than your gross monthly savings, which lengthens the break-even period. The Federal Reserve guide walks through this adjustment: fees of $2,500 divided by $91 in after-tax monthly savings comes to 27 months.
Prepayment penalties. Some existing loans charge a fee for paying off early. That fee counts as a refinance cost, and a large one can make refinancing unprofitable unless it is waived. For a deeper look at how these penalties work, see this explanation of prepayment penalties and yield maintenance.
Opportunity cost. Cash spent at closing is cash you cannot save or invest elsewhere. Weigh that against the monthly savings you expect.
Pro Tip: Check your current loan documents for a prepayment penalty before you request quotes, so the fee is in your total from day one.
What is a good rule of thumb for deciding?
A commonly cited guideline is to consider refinancing when rates are roughly 0.5 to 0.75 percentage points lower than your current rate. Treat it as a prompt to run your numbers, not a verdict. A rate drop does not guarantee a good deal: as one wealth management firm notes, if you move or refinance again before reaching break-even, the upfront costs will likely outweigh the savings.
Use this quick checklist:
- Compute your break-even in months.
- Confirm you plan to stay in the home longer than that.
- Check for prepayment penalties on your current loan.
- Compare Loan Estimates from multiple lenders.
Watch for these red flags: tiny monthly savings, high closing costs, or plans to move soon. Our guide on whether refinancing is worth it covers the decision beyond break-even, and our rate-and-term refinance explainer shows what that common type can save.
How do you get numbers you can trust?
Online calculators give approximations. Actual costs vary with your loan profile, so a firm decision needs real quotes. The Consumer Financial Protection Bureau advises requesting a formal Loan Estimate from multiple lenders. Here is how to put that to work:
- Ask at least three lenders for a Loan Estimate on the same loan type and loan amount.
- Confirm the origination fees and any discount points on each one.
- Check the appraisal fee, title fees and recording fees line by line.
- Ask directly whether there is any prepayment penalty or yield maintenance clause.
- Add up each estimate's costs and run the break-even formula separately for each lender.
Why we focus on break-even first
In our experience, borrowers decide better when they see the break-even number before they see a sales pitch. We run personalized scenarios and explain Loan Estimates line by line, so you know what each fee means. Your next step is simple: collect your Loan Estimates, then talk with a mortgage expert about a calculation built on your own numbers.
— David
Get your break-even calculated with our team
We provide personalized refinance guidance, and we can run your break-even calculation using your Loan Estimates. Our mortgage refinance team is ready to help you see the real payoff of a lower rate.
- Request a refinance consultation and walk through your numbers with us
- Send us the Loan Estimates you have collected so we can compare them side by side
- Ask us to explain any fee you do not recognize before you commit
Start with a conversation on our mortgage refinance page.
FAQ
What is the 2% rule for refinancing?
A rough screen is not a substitute for the break-even formula. Run your actual costs and savings before deciding.
How long should I stay in my home to make refinancing worthwhile?
Stay longer than your break-even period. If your break-even is 25 months, you need to keep the loan well past two years before savings exceed costs. Moving or refinancing again earlier means the upfront costs likely outweigh the savings.
Does a lower interest rate always mean I should refinance?
No. A lower rate lowers your payment, but closing costs, a possible prepayment penalty and a longer loan term can all erase the benefit. Divide your total costs by your monthly savings to see whether the trade is worth it.
How can I get the most accurate refinance costs?
Request a formal Loan Estimate from several lenders for the same loan. Estimates show your actual rate and fees, while generic calculators only approximate them. Comparing them side by side also makes cost differences easy to spot.
Sources
- How to Calculate the Break-Even Point on a Mortgage Refinance - NerdWallet
- Consumerfinance
- A Consumer's Guide to Mortgage Refinancings