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Refinance Break-Even Calculator

June 30, 2026 • By the Investor Sam Editorial Team • Reviewed by Berly Sam Varghese, Editor
Refinancing lowers your monthly payment but costs money upfront in closing fees, so the real question is how long you must stay in the home for the savings to outrun those costs. This calculator finds your break-even point — the month the accumulated monthly savings finally cover the closing costs — and the total interest you save if you keep the loan to term. If you plan to move before break-even, refinancing loses money even at a lower rate.

Example: Current loan balance: 300000 $ · Current interest rate: 7.25 % · New interest rate: 6 % · Remaining loan term: 27 years · Refinance closing costs: 6000 $

Break-even point25
Monthly payment savings$241
Lifetime savings$71,963

Worked example

Suppose you owe $300,000 with 27 years left at 7.25%, and you can refinance to 6.0% for $6,000 in closing costs. Your payment falls from about $2,077 to roughly $1,838 — a saving of $239 a month. Dividing the $6,000 cost by that $239 gives a break-even of about 25 months, just over two years. Stay longer than that and you are ahead; over the full remaining term the lower rate saves well over $70,000 net of the closing costs.

Frequently asked questions

What is the break-even point on a refinance?

It is the number of months of lower payments needed to recover the upfront closing costs. Before that point you have spent more than you have saved; after it, the savings are pure gain if you keep the loan.

When is refinancing not worth it?

If you expect to sell or refinance again before break-even, or if the rate drop is too small to overcome the closing costs, refinancing can cost you money. Time in the home is the deciding factor.

Should I refinance to a shorter term?

Refinancing from a 30-year into a 15-year can save enormous interest, but the monthly payment usually rises. This tool assumes you keep a similar remaining term; a shorter term changes both the payment and the savings math.

Can I roll closing costs into the loan?

Often yes, which avoids paying cash upfront but increases your balance and slightly raises the payment. The break-even still applies — you are just financing the cost rather than paying it directly.

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Sources

Berly Sam Varghese · Editor, Investor Sam

Berly Sam Varghese is an engineer who treats money the way he treats any hard problem — something to be engineered, not gambled on. He funded years of education and built real financial stability the patient way, by living below his means and investing rather than borrowing. He writes for the person trying to make a home a sound decision, not just a purchase. He reviews and approves every article on Investor Sam and checks the figures against primary sources before anything is published. More about our standards.