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Decision Engine

Should You Refinance Your Mortgage?

The Mortgage Bankers Association tracks weekly US refinance applications and shows refi volume spikes when available rates drop about 0.75% below the average outstanding mortgage rate. Answer six questions about your rate gap, time in home, remaining term, closing-cost tolerance, refinance goal, and credit changes to see whether refinancing now likely pays off or whether waiting is the right call.

Last updated: May 2026

A refinance lean is a directional view of whether refinancing a mortgage today likely pays off, based on the rate gap, expected time in the home, remaining loan term, closing-cost tolerance, refinance goal, and how your credit profile has changed since the original loan. Rate gap that typically justifies refi typically target Over 1.0%.

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What is Refinance Lean?

The Formula

Lean Toward Refinance = (Rate Gap >= 0.75%) + (Time in Home > Break-Even) + (Workable Closing Costs)

Rate gap and time-in-home are the two heaviest signals; without both, the break-even arithmetic rarely works regardless of secondary motivations.

Worked Example

A homeowner with a 6.5% mortgage, current available rate around 5.5%, 12 years left on the loan, plans to stay 7+ years, can pay closing costs out of pocket, credit score has improved 30 points since origination.

Rate gap: 1.0%, materially favorable
Time in home: 7+ years, well beyond typical 24-30 month break-even
Remaining term: 12 years, enough to compound the savings
Closing-cost tolerance: out-of-pocket, keeps math clean
Goal: lower monthly payment
Credit: improved 30 points, opens better pricing tier

📌 Strong lean toward refinancing now. Get 2-3 quotes from competing lenders to confirm the rate and lock; written break-even should be under 30 months.

Why This Matters

Refi math is highly time-sensitive

Mortgage rates can move 0.25-0.5% in a single week. A favorable refi window often closes within months; once identified, getting quotes and locking is the right speed.

Closing costs determine break-even

Refinance closing costs typically run 2-5% of the loan balance. Rolling them into the new loan reduces immediate cash hit but stretches the break-even point and reduces lifetime savings. Out-of-pocket payment usually wins long-term.

Common Mistakes

❌ Refinancing for a 0.25% rate drop

Below about 0.5% rate reduction, closing costs rarely justify the refinance unless you are also resetting the term or pulling cash out for a high-leverage purpose. The math turns negative quickly at small rate gaps.

❌ Cash-out refinancing for discretionary spending

A cash-out refi raises the loan balance and lengthens the interest term on the new dollars. It can make sense for consolidating much higher-interest debt or for a value-adding home improvement; for discretionary spending it almost never pencils out.

Industry Benchmarks

Category	Good	Average	Poor
Rate gap that typically justifies refi	Over 1.0%	0.75-1.0%	Under 0.5%
Typical break-even on refi	Under 24 months	24-36 months	Over 48 months
Closing costs as percent of loan	Under 2%	2-5%	Over 5%

Source: Mortgage Bankers Association Weekly Applications Survey and Freddie Mac Primary Mortgage Market Survey

Benchmark data sourced from Mortgage Bankers Association Weekly Applications Survey and Freddie Mac Primary Mortgage Market Survey.

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One of the most common mistakes we see when working with clients: refinancing for a 0.25% rate drop. Below about 0.5% rate reduction, closing costs rarely justify the refinance unless you are also resetting the term or pulling cash out for a high-leverage purpose. The math turns negative quickly at small rate gaps.

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Frequently Asked Questions

How much lower do mortgage rates need to be to make refinancing worthwhile?

A common rule of thumb is that rates 0.75% to 1% below your current rate make refinancing worth considering, especially if you plan to stay in the home long enough to recoup the closing costs. Below 0.5% usually does not justify the costs unless you have another reason like extending or shortening the term, switching loan type, or pulling cash out.

How do I calculate the break-even point on a refinance?

Divide your closing costs by your monthly payment savings. If closing costs total $4,000 and the new loan saves you $200 per month, the break-even is 20 months. If you plan to stay in the home longer than that, the refinance generally pays off; if you plan to sell sooner, it usually does not. This is directional; get a real rate quote and a written break-even from your lender.

What is a cash-out refinance and when does it make sense?

A cash-out refinance increases the loan balance above what you currently owe, with the difference paid to you in cash. It can make sense when the use of the cash (consolidating much higher-interest debt, a value-adding home improvement) clearly outweighs the longer interest term on the larger mortgage. Cashing out for discretionary spending rarely pencils out.

Does refinancing reset the mortgage clock to 30 years again?

It can, but it does not have to. You can choose a shorter term (a 15 or 20 year refinance) to maintain or accelerate payoff while still capturing a lower rate. The 30-year refi reset is the default option many lenders quote first; explicitly ask for shorter terms if your goal is faster payoff rather than the lowest monthly payment.

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