Every time mortgage rates drop, you hear the same question: *should I refinance? * The answer isn't about the rate alone. it's about whether you'll stay in your home long enough for your monthly savings to cover the upfront closing costs.
here's exactly how to run the math.
What Is a Mortgage Refinance?
Refinancing replaces your current mortgage with a new one, ideally at a lower interest rate. A 1% rate drop on a $250,000 loan saves roughly **$150/month**. But refinancing isn't free.
Closing costs typically run 2–5% of the loan amount, covering origination fees, appraisal, title insurance, and recording fees. The key question: will your monthly savings outpace those upfront costs before you move?
The Only Number That Matters: Break-Even Point
The break-even point is the number of months it takes for your monthly savings to equal your closing costs. The formula: **Break-Even = Closing Costs / Monthly Savings**. If closing costs are $6,000 and you save $250/month, your break-even is 24 months.
A break-even under 24 months is excellent. Between 24 and 36 months is standard. Over 48 months?
Only refinance if you're certain you'll stay long-term. don't refinance if you plan to move within 2–3 years, your rate drop is less than 0. 5%, or you would need to roll closing costs into the loan.
Does a Lower Rate Always Mean Lower Total Cost?
Not always. If you refinance from a 20-year remaining term into a new 30-year loan, you reset the amortization clock. you'll pay mostly interest again for years, potentially increasing your lifetime interest cost even at a lower rate.
Always compare **total interest paid** over the remaining life of the loan. A rate-and-term refinance that matches your remaining term preserves your equity-building progress. Cash-out refinancing lets you borrow more than you owe and pocket the difference — useful for high-return improvements or debt consolidation, but it increases your loan balance and may carry a slightly higher rate.
| Scenario | Break-Even | Planned Stay | Verdict |
|---|---|---|---|
| 7.5% to 6.0%, $6K closing costs | 24 months | 60 months | Yes — Refi now, save $9K+ |
| 7.5% to 6.0%, $6K closing costs | 24 months | 12 months | No — you'll lose $3K |
| 7.5% to 7.25%, $6K closing costs | ~120 months | 60 months | No — Rate drop too small |
| Cash-out refi for improvements | Varies | N/A | Consider if ROI exceeds cost |
Run Your Refinance Numbers
Not sure if refinancing is right for you? Use the Refinance Calculator to get a personalized Yes/No/Wait recommendation based on your current loan, new offer, and planned stay.