Refinance Break-Even Calculator: When Closing Costs Pay Off
Estimate when a lower monthly P&I pays back refinance costs you covered in cash, with the old and new loan at equal balance and remaining term.
What This Calculator Does
This calculator counts the months a smaller principal-and-interest payment needs to earn back the refinancing costs you pay out of pocket. The old and new loan keep the same amount and exactly the same remaining term. Pay more each month and the tool shows a loss. Unrecovered costs count as losses too. Once the loan is paid off, tracking stops. Should you refinance your mortgage? Whether refinancing pays off overall is a bigger question, and this tool doesn't answer it.
Who Is This For
Built for Florida homeowners and real estate professionals weighing a fixed-rate refinance, where the costs are paid in cash and the balance and term stay put. Enter only net costs you've confirmed. For the time frame, pick your realistic exit: a sale, a payoff or your next refinance. Any other loan setup needs its own comparison.
How It Works
Start with the numbers. You'll need the loan balance, the note rate on the current loan and on the new one, and the net refinance costs you're paying in cash. Remaining term and how long you expect to keep the loan both go in as whole years plus months. Then make sure the costs come out of pocket and that the old and new loan share the same amount and term. In the results, look at the monthly reduction (it can be + or −), the period the tool actually applied, and the break-even time. Last, check the net cash difference: it shows any loss and warns you when break-even would land after the loan is paid off.
Frequently Asked Questions
What is cash-cost recovery?
It's the number of months your lower payment needs to hand back the cash you put up front. The tool divides those cash-paid costs by the monthly P&I reduction and rounds up to whole months, but only when that reduction is positive. Getting your money back isn't profit. The count stops at your planned horizon or at the loans' shared payoff date, whichever comes first.
Can I enter fees rolled into the new loan?
No. The model assumes both loans carry the same principal and that you pay the costs from your own funds. Fold fees into the new loan and the principal goes up, so the payment moves too; plugging them in here as upfront cash skews the comparison. Leave them out, and don't treat them as free either. Compare the real balances, payments and costs on their own, outside this tool.
What happens if the new payment is higher or the same?
Then the payment can't win back your costs. A higher payment gives a negative monthly difference, and the cash loss keeps growing over the period. With equal payments, the costs simply stay unrecovered. A missing break-even doesn't by itself prove there's no reduction. Check whether the monthly difference is + or −, and read the payoff warning.
How do I enter years and holding time?
In whole years plus 0–11 months. Typing 2.0 means 2 years, not 20. The remaining term has to total 1–600 months, and your planned holding period 0–480 months. Very long or custom terms are what-if scenarios, not offers from a lender. Savings stop at payoff. A move only matters if the loan ends with it. When recovery lands after payoff, these loans can't get you there.
Which costs should I enter?
Only confirmed net refinance costs you pay from your own money, after any lender credits you can actually use. Refundable escrow deposits stay out, and so do fees rolled into the loan. Make sure no cost is repeated. A blank field means the cost is unknown, not zero. Type 0 only after you've verified there's no net cash cost; with 0 and a positive payment reduction, there's no upfront cash left to recover.
Does a positive result mean I should refinance my mortgage?
No. The result covers P&I cash flow only, with principal and term held equal. It leaves out differences in remaining debt and equity. Taxes, discounting and other housing charges are outside it too. Stretching the term, taking cash out and loan approval aren't modeled. Before you decide, get real quotes from your lender and confirm the total cost of borrowing.