How Refinance Break-Even Works
Refinancing replaces your current mortgage with a new one — usually to get a lower interest rate, change your loan term, or pull out equity as cash. But getting a new loan isn't free: lenders charge closing costs (appraisal, origination fees, title insurance, and more) that typically run 2–5% of the loan amount. The break-even point is the number of months it takes for your monthly savings to add up to enough to cover those upfront costs. Before that point, refinancing has cost you more than it's saved you; after it, you're ahead.
Monthly Savings Isn't the Whole Story
A lower rate almost always means a lower monthly payment, but if you also reset your loan term back to 30 years — even if you were 10 years into your current mortgage — you're spreading the remaining balance over more time. That can shrink your monthly payment significantly while actually increasing the total interest you'll pay over the life of the loan, because you're paying interest for longer. This calculator shows both numbers: the monthly savings (which drives your break-even point) and the lifetime interest comparison (which shows the bigger picture).
Why "Years You Plan to Stay" Matters
If your break-even point is 28 months and you plan to sell or refinance again in 2 years, you'd come out behind — you'd pay the closing costs but never fully recoup them in monthly savings. If you're planning to stay in the home for a decade, even a break-even point of 3–4 years can be well worth it. There's no universal "good" break-even number; it only makes sense relative to your own timeline.
Cash-Out Refinances
If you're taking cash out, your new loan balance is higher than your current one, which increases both your new monthly payment and the total interest on the new loan — that's the cost of accessing your equity. This calculator adds your cash-out amount to your current balance to size the new loan correctly, so the comparison reflects the true cost of borrowing against your home rather than just comparing rates in isolation.
Other Things to Check Before You Refinance
Rate and term aren't the only variables. Watch for prepayment penalties on your current loan, whether you'll need to restart private mortgage insurance (PMI) if your equity has changed, and whether the new loan resets your amortization clock in a way that conflicts with your payoff goals. Get a Loan Estimate from at least two or three lenders — closing costs vary more than rates do, and a few thousand dollars in fees can shift your break-even point by a year or more.