Refinance Break-Even Calculator

Break-even is the simple ratio of closing costs divided by your monthly payment savings. If a refinance saves you $200 a month and costs $4,000 in closing costs, you break even at month 20 - meaning that's when your cumulative savings have fully covered what you paid to refinance. After that point, every dollar of savings is real money in your pocket. The calculation assumes you keep the new loan and don't refinance again. Some calculators add the time value of money or compare lifetime interest, but the straightforward closing-costs-divided-by-monthly-savings method is the industry standard most lenders quote.

A break-even of under 24 months is generally considered excellent, 24-48 months is solid, and anything past 60 months starts to get questionable. The real test isn't a fixed number though - it's how it compares to how long you plan to stay in the home. If you'll be there 10+ years, even a 48-month break-even leaves you with 6+ years of pure savings. If you might move in 4 years, you want break-even well under 36 months to leave a meaningful cushion. Use your honest expected stay time, not a wishful number, when judging whether the math works.

Almost never for rate savings alone. With closing costs typically running $3,000-$6,000 on a Texas refinance, you need monthly savings of $125-$250 just to break even within 24 months - and that requires a substantial rate drop on a meaningful balance. Run the numbers honestly: if break-even lands in month 20 and you move in month 24, you only pocket 4 months of savings. There are exceptions: a no-closing-cost refi (where the lender covers fees in exchange for a slightly higher rate) can make sense for short horizons, and so can dropping PMI or removing a co-borrower.

Yes, and it's extremely common on refinances. Instead of paying $4,000 out of pocket at closing, that amount gets added to your new loan balance. The trade-off is you'll pay interest on those costs for the life of the loan, and your break-even calculation needs to account for the slightly higher payment. The benefit is zero out-of-pocket cost and the ability to refinance even when cash is tight. Some lenders also offer no-closing-cost refis where they absorb fees in exchange for raising your rate by roughly 0.25-0.50%, which works well if you may not stay in the home long-term.

The standard break-even formula doesn't account for resetting your amortization clock - and that's worth understanding. When you refinance into a new 30-year loan, you restart at a payment that's heavily weighted toward interest for the first several years. Even if your monthly payment drops, you may pay more interest over the loan's life and build equity slower than if you'd kept your original mortgage. This calculator focuses on cash-flow break-even (the most common metric), but if you're 10+ years into your current loan, also compare total interest paid and consider a shorter new term to avoid restarting the equity-building cycle.