Refinance Break-Even Calculator
Should you refinance? Calculates how many months until refinance savings cover closing costs, factoring in new rate and term.
About the Refinance Break-Even Calculator
The Refinance Break-Even Calculator answers the only question that matters when deciding to refinance: how long until your savings cover the closing costs? It compares the remaining payments on your current loan against the proposed new loan, factoring in your new rate, new term, and total closing costs.
Beyond the simple breakeven date, the tool models the full economics of the refinance - total interest saved over the life of the loan, monthly payment reduction, total cost of refinancing, and the break-even crossover month on a chart. It also flags when refinancing into a fresh 30-year term costs you more in total interest than staying on your current loan, even at a lower rate.
Common use cases
- Decide whether the current rate environment justifies refinancing
- Compare 30-year refi vs 20-year vs 15-year at the new rate
- Evaluate cash-out refinance for debt consolidation
- Stress-test refinance decision against the possibility of moving in 3-5 years
Tips for accurate results
If you refinance into a fresh 30-year mortgage 8 years into your current loan, you're paying interest on the same principal for 38 total years - even at a lower rate the total cost can be higher. The smart move is usually to refinance into a shorter term (e.g. 22 years to match your remaining time) or to keep the new payment the same as the old one and let the loan amortize faster.
Privacy & data handling
The Refinance Break-Even Calculator runs entirely in your browser. Nothing you enter is uploaded, logged, or shared with third parties - the math happens locally and your inputs disappear when you close the tab. There is no signup, no email collection, and no daily-use limit.
What is the refinance break-even point?
Break-even is when your accumulated monthly savings from the new lower rate equal the closing costs of the refinance. If closing costs $4,800 and the new payment saves $200/month, break-even is at month 24. After that you're ahead; before that you're behind on the deal.
What rate drop justifies refinancing?
The old rule was "1% drop or more," but that ignores closing costs and how long you'll stay. The right answer: refinance if your break-even is well before you plan to sell or refinance again. A 0.5% drop can be worthwhile on a large balance you'll hold 5+ years; a 1% drop isn't worth it if you're moving in two years.
Do I really want a new 30-year term?
Maybe not. Refinancing into a fresh 30-year resets the amortization clock and shifts more of each new payment back to interest. If you're 8 years into a 30-year mortgage, refinance into a 22-year (or shorter) loan instead, so you're not paying interest on the same principal for 38 total years. The tool models both scenarios.
What costs should I include?
Lender fees (origination, application, underwriting), third-party costs (appraisal, title insurance, recording), points if you're buying down the rate, and prepaid items (escrow funding, interim interest). Total closing costs typically run 2-5% of the new loan amount; the tool defaults to 3% with adjustability.
What about cash-out refinancing?
Same break-even math but factor in what you'll do with the cash. Cash-out for high-rate debt consolidation almost always wins on net interest. Cash-out for renovations is conditional on whether the renovation adds value or just consumption. Cash-out for vacations or speculation is almost never a good idea - you're trading equity for short-term spending.
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