The math says yes. Take $12,000 in credit card debt at 21 percent, throw $500 a month at it with the avalanche method, and you'll pay roughly $3,700 in interest over about 31 months. Move that same $12,000 onto a home equity loan at 7 percent, keep the $500 payment, and the interest drops to about $960 over 26 months. That's nearly $2,750 saved. And it is also the most dangerous sentence in personal finance, because the cheaper debt is secured by your house.
This is the trade the avalanche can't offer and the home equity pitch never leads with. You are converting unsecured debt, which a creditor cannot take your home over, into secured debt, which it can. If your income drops mid-payoff and you default on the credit cards, your credit takes the hit. If you default on the home equity loan, you can lose the house. The interest rate is lower because the lender's risk is lower. Your risk is higher.
Home equity loan vs avalanche: the math and the risk
Run the numbers honestly first, because the savings are real when the structure fits. The avalanche on $12,000 at 21 percent with $500 monthly payments runs about 31 months and $3,700 in interest. The 7 percent home equity loan at the same payment clears in about 26 months with roughly $960 in interest. The difference, around $2,750, comes entirely from the rate gap. Nothing about your behavior has to change. Same payment, same discipline, less money burned.
But three conditions have to hold, and the home equity version fails on the third one more often than people admit. First, the new rate has to be meaningfully lower than your weighted average rate. Seven percent against 21 percent qualifies. Seven percent against a 9 percent personal loan barely does, especially after origination fees. Second, the timeline can't stretch. Consolidation loans often seduce people into lower payments over longer terms, which can erase the rate advantage entirely. If the home equity loan drops your payment to $300 a month for 60 months, you will pay more total interest than the avalanche would have cost at $500. Third, and this is the one that matters, you have to stop borrowing. Consolidation clears your credit cards to zero, and a zeroed card feels like found money. Run the balances back up and you now have the home equity loan plus the cards, which is the failure mode that wrecks households.
The tax angle is smaller than the pitch suggests. Since the 2017 tax law, home equity interest is deductible only when the loan is used to buy, build, or substantially improve the home securing it. Paying off credit cards doesn't qualify. So the after-tax cost is the full 7 percent, not a discounted version of it.
My honest position: the avalanche is the default and the home equity loan is the exception. Use the exception only when all four of these are true: the rate gap is large (double digits on the cards versus single digits on the loan), you keep the monthly payment the same or higher, the term is shorter or equal, and you have a written plan for the freed-up cards, usually cutting them up or freezing them, not just good intentions. If any one of those fails, the avalanche wins, because the avalanche's only real cost is interest, while the home equity loan's cost can be your home.
One more scenario where the home equity route makes sense and the avalanche doesn't: you are debt-free on the behavior side, the only problem is the rate, and the cards will be paid in full within a year either way. Then the risk window is short and the savings are nearly certain. Short risk, high certainty. That is the only version of this trade I would take without flinching.
Frequently asked questions
Is it smart to use a home equity loan to pay off credit card debt?
It can save thousands in interest when the rate gap is large and you keep payments high, but it converts unsecured debt into debt secured by your home. Default can lead to foreclosure, which no credit card default can do.
How much can you save with a home equity loan versus the avalanche?
On $12,000 at 21 percent with $500 monthly payments, the avalanche costs about $3,700 in interest over 31 months. A 7 percent home equity loan at the same payment costs about $960 over 26 months, saving roughly $2,750.
Is home equity loan interest tax deductible when used to pay off debt?
No. Interest is deductible only when the loan is used to buy, build, or substantially improve the home securing it. Using the proceeds to pay off credit cards does not qualify.
What is the biggest risk of consolidating debt with home equity?
Turning unsecured debt into secured debt. If your income drops and you can't pay, the lender can foreclose on your home. The second risk is behavioral: cleared credit cards get run back up, leaving you with both debts.
When does the avalanche beat a home equity loan?
When the rate gap is small, when consolidation would stretch the timeline, or when there's any real chance of re-borrowing. The avalanche costs interest; the home equity loan can cost the house.
Compare snowball vs avalanche with your numbers
Sources: IRS guidance on home equity interest deductibility (post-TCJA); industry rate surveys for HELOC and personal loan APR ranges. Figures verified October 2026.