Refinance Cost Break-Even CalculatorFree online financial calculator — instant results, no sign-up
Find the simple recovery period for refinancing costs from monthly payment savings.
Estimates only, based on the inputs and assumptions shown. This is not financial, investment, tax, or legal advice. Prices, rates and local rules may change; crypto scenarios do not predict returns. Confirm important decisions with a qualified professional.
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About the Refinance Cost Break-Even Calculator
The Refinance Cost Break-Even Calculator estimates how many months of lower mortgage payments it takes to recover your net refinancing costs. It subtracts your proposed monthly payment from your current payment, then divides your refinance costs by that monthly savings. With the default inputs, the monthly savings is $250.00 and the simple break-even period is 24 months.
- Current monthly payment ($)
- Your monthly mortgage payment before refinancing, in dollars, with a default of $2,100.
- New monthly payment ($)
- Your expected monthly mortgage payment after refinancing, in dollars, with a default of $1,850.
- Net refinance costs ($)
- The refinancing costs you want to recover after subtracting applicable lender credits or rebates, in dollars, with a default of $6,000.
Formula and method
S = P_current − P_new; B = C_net / S, provided S > 0. With the default inputs: S = $2,100 − $1,850 = $250.00 per month; B = $6,000 / $250.00 = 24 months.
- P_currentCurrent monthly mortgage payment, in dollars per month.
- P_newNew monthly mortgage payment, in dollars per month.
- C_netNet refinance costs to recover, in dollars.
- SMonthly payment savings, in dollars per month.
- BSimple break-even period, in months.
Subtract the new monthly payment from the current monthly payment to find monthly savings. If savings is positive, divide net refinance costs by that savings to estimate the recovery period in months. This is a simple cash-flow calculation: it assumes constant savings and does not discount future dollars. If savings is zero or negative, positive refinance costs cannot be recovered through monthly payment savings.
Worked example
These are the calculator's starting values and the results it actually produces for them.
Inputs
- Current monthly payment2100 $
- New monthly payment1850 $
- Net refinance costs6000 $
Results
- Monthly savings$250.00
- Simple break-even24
How to use the Refinance Cost Break-Even Calculator
- 1Enter your current monthly mortgage payment; the default is $2,100.
- 2Enter your proposed new monthly payment; the default is $1,850, and both payment figures should include comparable components.
- 3Enter your net refinance costs after applicable credits or rebates; the default is $6,000.
- 4Review the monthly savings and simple break-even results: the defaults produce $250.00 in monthly savings and 24 months to break even.
- 5Compare the recovery period with how long you expect to keep the refinanced loan before selling, paying it off, or refinancing again.
Reading your result
The Monthly savings row shows how much less you would pay each month: $250.00 with the default inputs. A zero value means no payment reduction, and a negative value means the new payment is higher. The Simple break-even row shows the months required for cumulative payment savings to equal net refinance costs: 24 means 24 months, or two years, with the defaults. If a result includes a fraction of a month, round up to the next whole month when counting full monthly savings payments. Keeping the loan beyond break-even allows additional payment savings to exceed the entered costs, but does not by itself establish that refinancing reduces total borrowing costs.
Limitations
This tool measures payment-based cost recovery, not lifetime interest savings or overall financial benefit. It assumes net refinance costs are nonnegative and monthly savings remains constant. It does not model amortization, changes in loan term or remaining balance, adjustable rates, taxes, opportunity cost, or the time value of money. A longer loan term may lower payments while increasing total interest. Use comparable payment components so changes in escrow estimates are not mistaken for savings from refinancing. Costs rolled into the loan still matter, but their financing effects are not separately modeled. Zero or negative monthly savings does not provide a finite recovery period for positive costs.
Common questions
Does a simple break-even result of 24 mean months or years?+
It means months because refinance costs are divided by savings per month. With $6,000 in costs and $250.00 in monthly savings, recovery takes 24 months, or two years.
Should I include property taxes and homeowners insurance in both payment figures?+
Use the same payment components for both figures. Comparing principal and interest on both loans can help isolate the mortgage payment change; include mortgage insurance consistently when applicable. Avoid treating a lower escrow estimate as savings caused by refinancing.
What should I include in net refinance costs?+
Include relevant refinance expenses such as origination fees, discount points, appraisal fees, and title or recording charges, less applicable lender credits or rebates. Distinguish actual fees from prepaid expenses and escrow deposits, which may be timing changes rather than added costs. Do not automatically treat financed fees as zero simply because they are not paid in cash at closing.
Can refinancing pass this break-even test but still cost more overall?+
Yes. Extending the repayment term can reduce the monthly payment while increasing lifetime interest or leaving a larger loan balance at a future sale. Use this result alongside a comparison of total interest, loan balances, and how long you expect to keep the new loan.
Does the calculator save my information?+
Calculations run in your browser. While signed in, inputs and results are automatically recorded in account history; saving a result creates a separate saved record.
Further reading
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Results are estimates for informational purposes and are not financial, medical or legal advice.