Whenever someone pitches a refinance, the headline is the monthly savings. But savings alone is half the story. The number that actually matters is your break-even — and it's surprising how often it gets skipped.
The calculation
Take the total cost of the refinance (closing costs and fees) and divide it by your real monthly savings. The result is how many months it takes to recoup the cost. Past that point, you're truly saving. Before it, you're behind.
Example: $4,800 in costs ÷ $200/month saved = 24 months to break even. Keep the loan beyond two years and it was worth it. Sell or refinance again before then, and it wasn't.
The detail people miss
If a refinance "saves" you money mostly by stretching your loan back out to 30 years, some of that monthly savings is just paying over a longer time — not a true gain. A good break-even analysis accounts for that, not just the payment drop.
If a lender shows you a monthly savings without showing you the break-even, that's a yellow flag. The break-even is the honest number — and I'll always put it in front of you.
Thinking about a refinance?
Send me your current loan details and I'll run the real break-even — no spin. If it doesn't make sense yet, I'll tell you to wait.
This article is general education, not a commitment to lend or an offer of credit. Program availability, terms, rates, and qualification guidelines vary by lender and are subject to change; all loans are subject to underwriting and final approval. Market figures are approximate and change over time. For guidance specific to your situation, reach out directly. Garrett Potz, NMLS #631592 · Affinity Home Lending, Company NMLS #1181151 · Equal Housing Lender.