Your refinance break-even point is when your monthly savings equal the upfront cost of refinancing. The simplest way to find it is to divide your total closing costs by your monthly principal-and-interest savings. If you expect to keep the home longer than that number of months, refinancing often makes sense, as long as the new loan does not significantly increase your total interest over time.
Key Takeaways
- The core formula: break-even in months equals total closing costs divided by monthly savings.
- Use the right cost number: include lender fees and third-party costs like title and appraisal, not just the origination fee.
- Your timeline determines whether break-even is meaningful: it only matters if you'll stay in the home long enough to reach it.
- Use the Loan Estimate to compare offers: it lays out the rate, payment, and total closing costs in a consistent format.
- APR and TIP can help you compare loans: APR reflects certain costs, and TIP shows how much interest you'll pay over the full life of the loan.
The Refinance Break-Even Calculator
Step 1: Find Your Current Monthly Principal and Interest
Look at your current mortgage statement and write down principal and interest only. Do not include property taxes or insurance since they can change independently of the loan.
Step 2: Find the New Monthly Principal and Interest
Use the lender’s Loan Estimate and pull the projected principal and interest payment.
Step 3: Calculate Monthly Savings
Monthly savings equals your current monthly principal and interest minus the new monthly principal and interest. For example, $2,100 minus $1,850 equals $250 per month.
Step 4: Calculate Break-Even Months
Break-even months equals total closing costs divided by monthly savings. For example, $5,000 divided by $250 equals 20 months. If you’re confident you’ll keep the home and the loan longer than 20 months, the refinance may be worth it, assuming the extra checks below don’t change the conclusion. If your break-even period is shorter than the time you plan to keep the home, refinancing may be worth it. If it’s longer, it usually does not make sense.
What Counts as a Refinance Cost and What Doesn't
This is where many homeowners get inaccurate results by using the wrong cost number.
Lender Fees
These are fees paid to the lender or broker and usually show clearly on the Loan Estimate. They include origination, underwriting, and processing fees, as well as discount points if you’re buying down the rate. Points matter because they increase your upfront cost even if they lower your rate.
Third-Party Costs
These are fees required to close the loan, including appraisal, title services such as title search and title insurance, and recording and local fees.
Prepaids vs True Costs
Your Loan Estimate will also show items like homeowners insurance premiums, escrow funding, and prepaid interest. These increase cash due at closing but are not true refinance costs since you would pay them regardless. The best practice is to run your break-even two ways: a pure break-even that excludes prepaids to see the clean refinance cost recovery, and a cash break-even that includes the actual amount you’ll write a check for at closing to understand the real cash impact.
Three Quick Break-Even Examples
A rate drop scenario with $4,500 in costs and $150 in monthly savings produces a 30-month break-even, which works if you’re staying three or more years. A big saver scenario with $6,000 in costs and $400 in monthly savings produces a 15-month break-even, which is a strong payoff. A point buyer scenario with $9,000 in costs and $200 in monthly savings produces a 45-month break-even, which only makes sense for a long stay.
Two Critical Checks Most People Miss
1. Term Reset and Total Interest
Break-even looks at monthly savings, but refinancing can still cost more over time if you restart a long term. For example, if you’re 10 years into a 30-year mortgage and refinance into a new 30-year, you may lower the payment but extend interest for decades. To address this, ask about a 15 or 20-year term, ask for a custom term close to what you have left, or keep paying your old payment amount to speed up payoff.
2. Amortization Reset
Early mortgage payments are more interest-heavy. When you start a new loan, you often go back to that front-loaded interest phase. In practice, your payment may improve but your equity can build more slowly unless you pay extra principal.
If You're Comparing Two Loan Estimates Fast
Use a simple three-number check: APR to see cost including certain fees, TIP to see how much interest you pay over the full term expressed as a percentage of the loan amount, and total closing costs including whether points are included. TIP can be especially helpful when you’re comparing loans over a longer time horizon.
FAQs
Many homeowners like break-even under about 24 to 36 months because life changes can interrupt the plan. But the only break-even that really matters is the one that matches your actual timeline.
Yes. Points are upfront costs, so they increase closing costs even if they reduce the rate and payment.
If your break-even is longer than your likely time in the home, refinancing usually doesn't make sense unless you're refinancing for a different reason like removing mortgage insurance or switching loan type for stability.
Rolling costs in reduces cash due at closing, but it raises your loan balance and increases interest over time. The refinance can still work, just be sure your break-even math reflects the true cost.
Yes, but you should still include those costs in your break-even calculation. Rolling costs into the loan increases your balance, which means you pay interest on them over time.
A lower payment can reduce monthly stress and reduce portfolio withdrawals. But extending the mortgage into later retirement years can increase long-term cash-flow pressure, so it's worth stress-testing against fixed income and healthcare costs.
Run Your Real Break-Even Numbers (Not Just Estimates)
If you want a more precise analysis, schedule a complimentary consultation with one of our CFP® professionals at Bauman Wealth Advisors. We’ll run a side-by-side comparison using your current mortgage statement and a Loan Estimate so you can see your true break-even point, total cost, and whether refinancing supports your long-term plan.
