Is Refinancing Worth It? How to Calculate Your Break-Even Point

Mortgage rates dropped and your lender sent you a refinance offer. Sounds great — but is it actually worth it? The answer comes down to one number: your break-even point. Here's how to calculate it and three real-world scenarios to help you decide.

The Break-Even Formula

The concept is simple: how many months of savings does it take to recoup what you spent to refinance?

If your break-even is 30 months and you plan to stay in the home for at least 3 more years, refinancing pays off. If you might move in 2 years, it doesn't.

What Are Typical Refinance Closing Costs?

Expect to pay 2%–5% of the new loan amount in closing costs. On a $400,000 refinance, that breaks down to:

• Appraisal fee: $300–$600
• Title insurance: $1,000–$2,000
• Origination fee: 0.5%–1% of loan ($2,000–$4,000)
• Recording fees: $50–$300
• Other (credit report, flood cert, etc.): $100–$400

For our examples below, we'll use $4,500 as a realistic mid-range closing cost.

Scenario 1: Rate Drops 0.5% (7.2% → 6.7%)

You have a $400,000 balance with 28 years remaining at 7.2%, and rates are now 6.7%:

Verdict: Marginal. Worth doing if you'll stay 5+ years. But the 5-year savings ($3,660) may not justify the hassle for some homeowners.

Scenario 2: Rate Drops 1% (7.2% → 6.2%)

A full percentage point drop makes the math much more compelling:

Verdict: Strong. A 17-month break-even is fast, and the five-year savings exceed $11,000. Refinancing here is an easy yes for most homeowners.

Scenario 3: Rate Drops 2% (7.2% → 5.2%)

A 2-point drop is rare but transformative:

Verdict: No-brainer. A 9-month break-even and nearly $180,000 saved over the loan term. If rates ever drop this much, run — don't walk — to refinance.

The Hidden Factor: Restarting the Clock

Most people refinance into a new 30-year term, which means you restart the amortization clock. Your early payments are mostly interest again. If you're 10 years into your mortgage and refinance into another 30-year loan, you could end up paying more total interest even with a lower rate — because you're stretching payments over 40 years instead of 30.

To avoid this trap, consider a shorter-term refinance (like a 20-year loan) or simply make extra payments equal to what you were paying before. Both options preserve more of your interest savings. Our mortgage calculator can model the amortization difference side by side.

Beyond Rate: Other Reasons to Refinance

• Remove PMI. If your home has appreciated enough, refinancing from FHA to conventional can eliminate mortgage insurance entirely. See our PMI calculator to check.
• Switch from ARM to fixed. If your adjustable-rate mortgage is about to reset, locking in a fixed rate protects you from future increases.
• Cash-out refinance. Tap home equity for major expenses — but remember, you're adding debt, not generating income.
• Shorten the term. Going from 30 to 15 years at a lower rate can save six figures in interest even if your payment increases.

Calculate Your Refinance Break-Even

The examples above use national averages. Your real numbers depend on your current rate, balance, closing costs, and how long you'll stay in the home. Our refinance calculator computes your exact break-even point, total savings, and whether refinancing makes sense for your mortgage.