If you’re choosing between a HELOC and a cash-out refinance to pay off debt, start with the rate on the mortgage you already have. If that rate is well below today’s market, a HELOC or second mortgage is usually the cheaper route. A cash-out refinance reprices your entire balance. A second lien prices only the new money.
That one structural difference decides this question more often than the headline rate does, and it decides it hardest for households who bought or refinanced between 2020 and 2022. There’s a second trap underneath it. Stretch $20,000 to $80,000 of card debt across a long home equity term and you can pay more total interest than the card would have charged, even at half the rate. Both of those get real numbers below.
What each structure does to your mortgage
A cash-out refinance does not add $50,000 to your loan. It replaces your first mortgage with a brand new one at today’s pricing, for the old balance plus the cash. Every dollar you already owed gets repriced, even though almost none of it’s new money.
A HELOC or a second mortgage works the other way around. It sits behind your existing first mortgage and leaves that rate completely alone. Only the new money carries the new rate, and the loan you’ve been paying down since 2021 keeps doing exactly what it was doing.
The market has already voted on which of those matters more. In the first quarter of 2026, 54 percent of all home equity extraction came through second liens rather than cash-out refinances, and close to two thirds of those second liens were taken out by borrowers whose first mortgage dates to 2020 through 2022. Those households ran the numbers below and decided their old rate was worth protecting.
The repricing penalty, in dollars
Say your first mortgage balance is $300,000 at 3.5 percent. Principal and interest runs about $1,347 a month. Reprice that same $300,000 at 7.25 percent and it costs about $2,047 a month. That’s $699 more every month, roughly $8,393 a year, before you’ve borrowed a single additional dollar.
The real first bill on a cash-out refinance is that $699, and almost nobody is looking at it when they start. You don’t lose your low rate in the abstract. You write a bigger check every month for the next thirty years.
What to do with that. Pull your mortgage statement and write down the remaining balance and the note rate. Then ask one blunt question before anyone talks to you about cash. If that balance were repriced at today’s market, what would the payment become, and does that number fit your month? Our refinance rule of thumb is a reasonable place to sanity check the answer.
Two routes to the same $50,000
If you need $50,000 to clear credit card balances, there are two ways to get it, and they cost very different amounts per month.
| Route to $50,000 | What happens to the first mortgage | Payment today | Payment after | Monthly increase |
|---|---|---|---|---|
| Cash-out refinance | Repriced: $300,000 at 3.5 percent becomes $350,000 at 7.25 percent | $1,347 | $2,388 | $1,040 |
| HELOC or second lien | Untouched: $300,000 stays at 3.5 percent, plus $50,000 at 7.26 percent over 20 years | $1,347 | $1,743 combined | $396 |
Same $50,000 in the bank either way. The second lien route costs about $645 a month less, and none of that difference comes from the rate on the $50,000. It comes from what happens to the $300,000 you weren’t trying to borrow.
What to do with that. Don’t open with “what’s the rate?” Ask instead: what is my total monthly payment under each structure, and how much of the increase is repricing money I already owed? The answer usually tells you which option is even worth pricing out, and our loan comparison calculator will run the two side by side with your own balances.
The term trap that cancels the savings
Here’s the counter-example almost nobody prints. A lower rate over a longer term is not automatically cheaper, and on consumer debt it frequently isn’t.
Take $50,000 at the 22.15 percent average that credit card accounts assessed interest carried in the second quarter of 2026, per the Federal Reserve’s G.19 release, paid off over five years. That’s about $1,385 a month and roughly $33,113 of total interest. Now move the same $50,000 onto a home equity payment at the 7.26 percent HELOC average, stretched over twenty years. The payment drops to about $395, which feels like a win, and the total interest rises to about $44,918. That’s roughly $11,800 more than the card would have cost you.
The rate didn’t save that household anything. The term ate the savings and then some. Run the same $50,000 at 7.26 percent over five years instead and it costs about $996 a month and $9,772 in interest, about $23,340 less than the card. Identical loan, identical rate, opposite outcome, and the only variable is how fast you pay it.
What to do with that. Pick your payoff timeline before you pick your product. If the goal is to be out of this debt in five years, commit to a five year payment even when the loan would happily let you take twenty. Every useful comparison of debt consolidation options starts with the payment you will make rather than the one you are allowed to make.
How much equity you can reach
Homeowners run the numbers on total equity and then hit a wall when the maximum loan comes back smaller, because equity and reachable equity aren’t the same figure. What sets the ceiling is the loan-to-value cap on the product. A conventional cash-out refinance under Fannie Mae or Freddie Mac guidelines is capped at 80 percent of value on a primary residence, and FHA is capped at 80 percent of appraised value as well. A VA cash-out refinance can run to 100 percent for eligible veterans and service members, the one real exception.
Put numbers on it. A home worth $700,000 with a $300,000 balance holds $400,000 of equity, about 57 percent of the value. But 80 percent of $700,000 is $560,000, so the largest new loan is $560,000 and the most that can come out is roughly $260,000 before closing costs. Not $400,000. That gap is a common reason a consolidation plan has to be rebuilt halfway through.
What to do with that. Take your best estimate of the value, subtract your balance, then run the 80 percent math separately. Two minutes of that beats budgeting around money the guidelines won’t release.
Other terms that change the risk
The rate structure matters as much as the rate. Your first mortgage is almost certainly fixed and does not move. A HELOC is typically variable and moves with prime, so choosing a second lien means accepting rate risk on the new money in exchange for protecting the old money. That is a real trade, and it goes both ways depending on where rates head.
Don’t plan on a tax deduction either. Interest on home equity borrowing is deductible only when the money is used to buy, build or substantially improve the home securing the loan, and the 2025 law made that restriction permanent rather than letting it expire. Paying off credit cards is not one of those uses. Plenty of older consolidation articles still promise that deduction, and it has not applied to this use since 2018.
Costs differ too. Refinance closing costs commonly run about 2 to 5 percent of the new loan amount, which on a $350,000 loan is roughly $7,000 to $17,500, and they apply to the whole loan rather than to the cash you take. HELOCs and second mortgages usually carry lower up-front costs, though that varies by lender and is worth confirming in writing. And one plain sentence belongs here. Both routes turn unsecured debt into debt secured by your house. If you already have a line open, refinancing an existing HELOC is its own separate decision with its own math.
When a cash-out refinance is the better answer
Sometimes it plainly is, and an article that never says so is selling you something. A cash-out refinance makes sense when your current rate is already at or above today’s market, because then there’s no penalty to reprice the balance. It makes sense when you need more cash than a second lien will support. And it makes sense when what your household needs is one fixed loan and one payment instead of a first mortgage plus a variable line of credit.
So before ruling it out because you don’t want to give up a low rate, confirm that you have one. If replacing the mortgage today would leave the payment close to where it is, one fixed loan can be worth more than protecting a structure that isn’t doing much for you. Our guide on refinancing in 2026 walks through the rest of that decision.
About those rate figures
Two published averages appear above and both need a label. Freddie Mac’s Primary Mortgage Market Survey put the 30-year fixed at 6.76 percent for the week of September 10, 2026, and Bankrate put the average HELOC at 7.26 percent on September 9, 2026. Neither is an offer. The Freddie Mac survey covers purchase loans for borrowers with excellent credit putting 20 percent down, and cash-out refinances price above it. Treat both figures as the shape of the market and nothing more.
Why a broker matters on this particular question
GoldCoast Mortgage Service is an independent mortgage broker in Beverly, licensed by the Massachusetts Division of Banks, MB 1841, NMLS #1841, and licensed in New Hampshire and Maine as well. John Donlon, who owns the company, has spent more than 25 years financing homes across the North Shore and the Merrimack Valley. On this question the structure matters. A bank shows you the products that bank sells, so if what it sells is a cash-out refinance, that’s what gets recommended. Our job is to run both structures against your real balances and tell you what each costs, including the times the answer is to leave your mortgage alone entirely.
That outcome is common here and it is a fine one, and we would rather tell you before you pay for an appraisal than after. You can see the towns we cover on our service areas page, and a free pre-qualification will put real numbers on both routes in about twenty minutes.
Two related pieces if this one did not settle it: when a debt consolidation refinance works and when it backfires, and how a rate and term refinance actually works for the homeowner who wants no cash out at all.
Questions homeowners ask about HELOCs and cash-out refinances
Is a HELOC rate always higher than a cash-out refinance rate?
Usually, though that isn’t the deciding factor. In early September 2026 the 30-year fixed purchase benchmark averaged 6.76 percent and the average HELOC averaged 7.26 percent, a gap of half a point. But the HELOC rate applies only to the new money while a refinance rate applies to your whole balance, which is why the more expensive rate often produces the cheaper payment.
Can I get the rates quoted above?
No. Those are national survey averages on specific dates, not offers. The Freddie Mac figure covers purchase loans for borrowers with excellent credit and 20 percent down, and cash-out refinances generally price above it. Your own pricing depends on your credit, your loan-to-value and the lender.
What’s the biggest catch with using a HELOC to pay off debt?
Two of them. Most HELOCs carry a variable rate that moves with prime, so the payment on the new money can change while your fixed first mortgage doesn’t. And a long payoff term can cost more total interest than the card would have. If the plan depends on a specific payment, price it again at a rate two points higher and see if it survives.
How much of my equity can I borrow?
Start with the 80 percent loan-to-value cap that applies to conventional and FHA cash-out refinances on a primary residence. On a $700,000 home with a $300,000 balance that puts the maximum new loan at $560,000, so about $260,000 is reachable before costs rather than the full $400,000 of equity. VA cash-out can go to 100 percent for eligible borrowers, which moves the ceiling.
Can I deduct the interest if I use home equity to pay off credit cards?
Not for that use. Interest on home equity borrowing is deductible only when the money buys, builds or substantially improves the home securing the loan, and the 2025 law made that permanent. Paying off cards, student loans or medical bills is personal interest, and you’d have to itemize even where the deduction does apply.
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