Break-even point and the number people miss
Break-even point and the number people miss
Refinancing replaces your existing mortgage with a new one, usually to secure a lower rate. Enter your current balance, rate, and years remaining, then the terms you have been offered and the closing costs. The calculator shows monthly savings, the break-even month, and — most importantly — total interest under both loans.
The monthly saving is what lenders lead with. It is also the least complete measure, for a reason worth understanding.
Refinancing costs money upfront. Break-even tells you how long you must stay in the home before the savings exceed those costs:
Break-even months = Closing costs ÷ Monthly saving
With $5,500 in closing costs and a $230 monthly saving, break-even is roughly 24 months. Sell or refinance again before then and the transaction cost you money. Stay longer and every subsequent month is genuine saving.
The honest question is therefore not “is the rate lower?” but “am I confident I will be here past the break-even point?” If a move is plausible within two or three years, a refinance with meaningful closing costs is usually not worth it.
Here is the number that gets hidden. If you are 4 years into a 30-year mortgage and refinance into a new 30-year term, you have just added 4 years back onto the loan. The monthly payment falls partly because of the better rate and partly because you stretched the repayment out again.
The result is that a refinance can lower your payment while raising your total interest. This calculator shows lifetime interest under both loans precisely so you can see whether that has happened. If the new total is higher, the refinance is buying you monthly cash flow at a long-term cost — sometimes a reasonable trade, but it should be a conscious one.
The clean way around this is to refinance into a term matching the years you have left, or shorter. Refinancing 26 remaining years into a 20-year loan at a lower rate can cut both the total interest and the payoff date at once.
Typically 2–5% of the loan amount, covering the lender's origination fee, appraisal, title search and title insurance, recording fees, credit report, and prepaid items such as escrow deposits. On a $280,000 loan that is commonly $5,000–$12,000.
A “no-closing-cost” refinance does not remove these — it either rolls them into the balance or compensates the lender with a higher rate. Both are legitimate options if you lack cash upfront, and both make the loan more expensive overall. Ask for the rate with and without to see what the convenience costs.
Removing mortgage insurance. If your equity has passed 20%, refinancing out of an FHA loan can eliminate a monthly insurance premium, sometimes justifying the move even without a large rate improvement.
Switching from adjustable to fixed. Converting an ARM to a fixed rate buys certainty. That has value independent of whether the rate is lower today.
Shortening the term. Moving from 30 years to 15 raises the payment but usually cuts lifetime interest by more than half.
Cash-out refinancing converts home equity into cash at mortgage rates, which are lower than most alternatives. It also increases your balance and puts your home behind the debt, so it warrants more caution than the rate alone suggests.
The old guidance of “refinance when rates drop 1%” is a rough heuristic that ignores balance size and time remaining. On a large balance, half a point can be worth it. On a small balance with six years left, even two points may not cover closing costs. Run your own numbers and check three things: monthly saving, break-even month, and total interest under both loans. If all three point the same direction, the decision is straightforward.
There is no fixed threshold. What matters is whether the monthly saving recovers the closing costs before you sell or refinance again. On a large balance, half a percentage point can be enough; on a small balance with few years left, even a large drop may not cover costs.
If you take a new 30-year term, yes. You return to the front of the amortisation schedule where payments are mostly interest. Refinancing into a term matching your remaining years, or shorter, avoids this.
Usually 2-5% of the loan amount, covering origination, appraisal, title insurance, and recording fees. A no-closing-cost refinance rolls these into the balance or the rate rather than removing them.
Yes, and it is common. Extending the term lowers the monthly payment while increasing total interest. Always compare lifetime interest under both loans, not just the monthly figures.