Refinance Break-Even Date Calculator
Months to recover refinance closing costs from monthly payment savings.
Calculate how many months to recover refinance closing costs from the monthly payment savings. Shows break-even in months from the values you enter.
What this tool does
Refinancing has upfront costs (arrangement fees, valuation, legal). It's worth it only if monthly savings recover those costs before you move or refinance again. Enter closing costs and expected monthly savings. The tool returns break-even in months.
Enter Values
Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
2,500 in refinance fees with 100 monthly savings breaks even in 25 months — a bit over two years. If you're staying in the mortgage at least that long, the refinance makes sense. If you'd sell or remortgage again within 25 months, the fees eat the savings.
How to use it
Enter total closing costs (fees, valuation, legal, any early repayment charges on the old mortgage) and the expected monthly payment saving from refinancing.
Don't refinance for tiny savings
If break-even is over 4 years and you're not sure you'll stay that long, the refinance is marginal. Rule of thumb: break-even under 24 months is clearly worthwhile; 24-48 months is borderline; 48+ months is rarely worth the hassle.
A worked example
Try the defaults: total closing costs of 2,500, monthly payment savings of 100. The tool returns 25 months. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.
What moves the number most
The result responds to Total Closing Costs and Monthly Payment Savings. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
The formula behind this
Simple division: closing costs divided by monthly savings. 5-year and 10-year savings assume you stay put and continue accruing benefit. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.
Why this matters before you sign
A mortgage is usually the biggest single financial commitment a person makes. The difference between a well-chosen product and a hasty one can run into tens of thousands over the life of the loan. Running the numbers here before committing is the cheapest form of due diligence available.
What this doesn't capture
The figure excludes arrangement fees, valuation costs, legal fees, insurance, and any early-repayment charges — those can add several thousand to the headline cost. Rate changes at renewal for fixed-term deals will shift the picture further. Use this for the core interest/principal math and add the other costs on top.
Months to recover refinance costs from savings is shown above.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Simple division: closing costs divided by monthly savings. 5-year and 10-year savings assume you stay put and continue accruing benefit.
References
Frequently Asked Questions
What's a good break-even period?
Should I include early repayment charges?
What about the interest saved over the full term?
Does rate change matter?
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