Home Equity Loan vs Refinance: When Each One Actually Wins

Both products let you turn home equity into cash. A home equity loan adds a second loan on top of your existing mortgage. A cash-out refinance replaces your existing mortgage with a new, larger one and gives you the difference in cash. The right choice depends almost entirely on the rate gap between your current mortgage and current market rates, plus how much cash you actually need.

The way I think about the choice is that a refinance is a big surgical move, and an equity loan is a small incremental one. If your current mortgage rate is comfortably below market, refinancing means giving up that low rate to get cash, which is usually a bad trade. If your current rate is above market, refinancing can hit two birds: lower your rate and give you cash. The rate gap is the deciding variable. Most other considerations are secondary.

How Each Product Works

Home equity loan. A second mortgage. You keep your existing first mortgage exactly as is. You add a new loan, typically 5-30 years, with a fixed rate, secured by the same property. Loan-to-value (the combined first plus second loans, divided by appraised value) usually capped at 80-90%. You get the cash as a lump sum at closing. Closing costs typically $1,000-$3,000.

Cash-out refinance. A new first mortgage that pays off your existing first mortgage and gives you the difference in cash. Loan-to-value usually capped at 80%. Rates are 30-year fixed in most cases. Closing costs typically 2-4% of the new loan amount, so $4,000-$10,000 on a $200K refi.

The Rate Gap Is the Whole Game

The single biggest factor: the spread between your current mortgage rate and current market rates.

• Your current rate is below market by 1%+: Equity loan wins almost every time. Refinancing means surrendering a valuable below-market rate to access cash.
• Your current rate is roughly at market: Compare cash-out refi rates against equity loan rates. Refi usually has a slightly lower rate but higher closing costs. Math depends on borrowing amount and time horizon.
• Your current rate is above market by 1%+: Cash-out refi wins. You lower the rate on your existing balance AND get cash. Two benefits in one transaction.

This is why the same advice doesn't apply across rate cycles. In 2021 with mortgage rates at 3%, cash-out refi was the obvious move because everyone was already refinancing anyway. In 2025 with rates closer to 6.5-7% and most homeowners locked at 3-4%, equity loans dominate because nobody wants to give up their pandemic rate.

The Closing Cost Math

Equity loans have lower closing costs in absolute dollars. On a $50K cash request:

• Equity loan closing costs: roughly $1,500.
• Cash-out refi closing costs (assuming a $250K new loan): roughly $7,500.

That's a $6,000 difference. To justify the higher closing cost, the cash-out refi needs to deliver enough rate savings on the entire mortgage balance to recoup that cost in a reasonable time frame. If you're refinancing $250K from 4% to 6.5%, you're paying $6K in closing costs to make your situation worse. The math is brutal there.

Tax Treatment

Both products allow interest deduction only when proceeds are used for “substantial home improvement” on the property securing the loan, per the 2017 Tax Cuts and Jobs Act. If you take cash to consolidate credit card debt, fund a renovation on a different property, or buy a car, the interest is no longer deductible. This is the most common misunderstanding I see in personal finance discussions.

On a $50K equity loan at 9% used for substantial home improvement, interest is roughly $4,500/year, deductible if you itemize. On the same loan used for credit card consolidation, the interest is the same dollar cost but provides no tax benefit. Run the math at the after-tax rate.

What People Actually Use Them For

The most common use cases:

• Home renovations. The cleanest use case. Adds value to the property and (if substantial) preserves interest deductibility.
• Debt consolidation. Trading 22% credit card debt for 9% home equity debt is a real arbitrage on rate, but it converts unsecured debt to secured. Default risk shifts from getting calls from collectors to losing the house.
• Education. Common but usually wrong. Federal student loans have lower rates and better protections (income-driven repayment, forgiveness in some cases).
• Investment property purchase. Using equity from your primary residence as down payment on an investment property. The loan is no longer interest-deductible against the rental, but the cash deployment can make sense if the rental returns are strong.
• Business funding. Common for small business owners. The risk is putting your house on the line for a business that may not work.

The Rule of Thumb I Use

For most decisions:

• Cash needed under $50K AND current rate is below market: Equity loan or HELOC.
• Cash needed over $100K AND current rate is at or above market: Cash-out refi.
• Cash needed in the middle, mixed rate environment: Run the actual math with current rate quotes. Don't default to either.

The simplest test is the break-even period on a refi: divide the closing costs by the monthly savings vs the equity loan. If the answer is over five years, it's usually a bad refi. Under three years, almost always good. In between, depends on your time horizon.

The Take

Most homeowners in 2025 are sitting on extremely valuable below-market mortgage rates from the 2020-2022 window. Giving up that rate to fund a renovation is usually a worse trade than people realize. Run the actual interest cost difference over the loan's life, not just the headline rate. The right answer changed dramatically once rates rose, and the financial advice from 2021 mostly doesn't apply to 2025.