Mortgage Refinance Break-Even Calculator
Enter your current loan details and new rate to find your break-even date, monthly savings, and whether refinancing makes sense.
For educational purposes only. Calculator results are estimates based on the inputs you provide and are not a substitute for professional financial advice. Consult a licensed financial advisor before making investment, borrowing, or retirement decisions.
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What is a mortgage refinance break-even point?
Refinancing replaces your existing mortgage with a new one — usually at a lower interest rate. While a lower rate reduces your monthly payment and total interest paid, refinancing comes with closing costs (typically 2–5% of the loan amount). The break-even point is how long it takes for your accumulated monthly savings to equal those upfront costs.
If your break-even point is 24 months and you plan to stay in your home for 10 more years, refinancing makes strong financial sense. If you expect to move in 18 months, you will never recoup the closing costs — making refinancing a net loss.
How to use this calculator
- Current Loan Balance — The outstanding principal on your existing mortgage.
- Current and New Interest Rates — Your existing APR and the rate offered by the new lender.
- Remaining Term — How many months are left on your current mortgage.
- Closing Costs — Typical refinance costs range from 2–5% of the loan balance. Get a Loan Estimate from your lender for an accurate figure.
- Click Calculate to see your break-even date, monthly savings, and cumulative savings by year.
When does refinancing make sense?
Refinancing is generally worth considering when:
- The new rate is at least 0.5–1% lower than your current rate
- Your break-even point is less than the time you plan to stay in the home
- Your credit score has improved significantly since your original loan
- You want to switch from an adjustable-rate to a fixed-rate mortgage for stability
- You want to shorten your loan term (e.g., from 30 to 15 years) and can afford the higher payment
Frequently asked questions
What are typical refinance closing costs?
Closing costs typically range from 2–5% of the loan amount, including lender origination fees, appraisal, title insurance, and prepaid property taxes. On a $300,000 loan, that is $6,000–$15,000.
What is a good break-even period for refinancing?
Most financial advisors consider a break-even period under 24 months to be strong justification for refinancing. If you plan to stay in the home at least 5 more years, even a 36-month break-even can make sense — the savings compound over many years after break-even. A break-even beyond 48 months should prompt serious scrutiny: you are betting on staying put for 4+ years, and life rarely cooperates with long-horizon plans.
Does refinancing hurt your credit score?
Yes, briefly. Applying for a refinance triggers a hard inquiry on your credit report, which typically drops your score by 5–10 points for 3–6 months. If you shop multiple lenders within a 14–45 day window (depending on the scoring model), all inquiries are typically counted as one, minimizing the impact. The temporary dip is almost never a reason to avoid refinancing if the numbers work — the long-term financial benefit far outweighs a brief score decrease.
Monthly Savings by Rate Drop — Is Refinancing Worth It?
| Rate Drop | $250K Loan | $400K Loan | $500K Loan | Typical Break-Even |
|---|---|---|---|---|
| 0.25% | ~$33/mo | ~$53/mo | ~$66/mo | 3–5 years |
| 0.5% | ~$66/mo | ~$105/mo | ~$132/mo | 2–3 years |
| 1.0% | ~$132/mo | ~$211/mo | ~$264/mo | 1–2 years |
| 1.5%+ | ~$198/mo+ | ~$316/mo+ | ~$395/mo+ | Under 1 year |
Assumes 2% closing costs. Use the calculator above for your exact break-even date.
Real mortgage refinance scenarios
Refinancing $350,000 from 7.5% to 6.0% — the numbers
On a $350,000 30-year mortgage, dropping from 7.5% to 6.0% reduces your monthly payment from $2,447 to $2,098 — a saving of $349 per month. With $7,000 in closing costs, you break even in 20 months. If you stay in the home for 10 more years, you save approximately $34,900 in total.
Refinancing into a 15-year term — is the higher payment worth it?
Refinancing a $300,000 balance from a 30-year at 6.5% to a 15-year at 5.75% raises your monthly payment from $1,896 to $2,490, but eliminates 15 years of payments. Total interest on the remaining 30-year term would be approximately $220,000; on the 15-year, approximately $148,000. You pay $72,000 less in interest and own the home outright 15 years earlier.
The 'no-closing-cost' refinance trap
A no-closing-cost refinance on $300,000 from 7% to 6.75% — with a 0.25% premium absorbing closing costs — saves $46/month instead of $144/month with a standard refinance. After 5 years, you save $2,760 vs $8,640. If you plan to stay 10+ years, paying closing costs upfront almost always yields better total savings.
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