Quick answer
The break-even point of a refinance is the number of months it takes for the monthly savings to add up to the closing costs: closing costs ÷ monthly savings. If you sell or refinance again before that month, the refinance has cost you more than it saved.
Key facts
7.24%
30-year fixed average (new rate in the example)
Freddie Mac Primary Mortgage Market Survey · Week of Oct 29, 2026
Example
You owe $300,000 with 28 years left at an example rate of 8.24%. Refinancing into a 30-year loan at 7.24% lowers principal and interest by $245 a month. Closing costs at 3% come to $9,000, paid in cash. Break-even: $9,000 ÷ $245 = 37 months. Keep the new loan longer than that and the refinance comes out ahead.
Where the simple formula falls short
- Term reset. Restarting at 30 years lowers the payment partly by stretching the debt, so compare balances too, not just payments.
- Rolled-in costs. Financing the costs means you pay interest on them, which pushes break-even later.
- Points. The same test tells you whether buying discount points pays.
VA writes the idea into law: an IRRRL must recoup its costs within 36 months. The refinance break-even calculator runs the fuller comparison, and the break-even guide explains the method.
Related terms
Sources
- Freddie Mac Primary Mortgage Market Survey — 30-year fixed rate, national weekly average (Week of Oct 29, 2026)
- Freddie Mac My Home — Typical refinance closing costs, low end (share of loan principal) (Oct 28, 2026)
- 38 U.S.C. 3709 — VA IRRRL: fees and closing costs must be recouped within (Oct 28, 2026)
- CFPB: Should I refinance? (handout)
Last reviewed Figures are checked against the sources above. Read our editorial policy. This page is general information, not financial advice — see the disclaimer.