The 30-second answer
A HELOC costs 7.0%-9.5% APR in 2026. A credit card carrying a balance costs 22-25% APR on average. That's a 14-16 percentage point gap, which is enormous. If you're carrying revolving credit card debt, the HELOC is almost always cheaper — and the tax deductibility of HELOC interest (when used for home improvements) can widen the gap further. The credit card wins in exactly two scenarios: you pay the balance in full every month (in which case rate is irrelevant and rewards win), or you're using a 0% intro APR promo and know you'll pay it off before the promo ends.
The rate gap, illustrated
| Product | Typical APR (July 2026) | Notes |
|---|---|---|
| HELOC (well-qualified) | 7.00% - 9.50% | Variable, tied to Prime |
| Credit card (general purpose) | 22.00% - 25.00% | Variable, avg cardholder APR |
| Store credit card | 28.00% - 32.00% | Highest carry rates in consumer credit |
| Credit card (0% intro APR) | 0% for 12-21 months, then 22-25% | Promo only; balance transfer fee 3-5% |
The rate gap between a HELOC and a carried credit card balance is one of the largest in consumer finance. There is no other legal way to swap $50,000 of 24% debt for $50,000 of 8.5% debt, in a single transaction, with a bit of paperwork.
What consolidation actually saves you
Here's the annual interest cost on a $30,000 balance across both products:
| Product | APR | Annual interest on $30K | Monthly interest |
|---|---|---|---|
| Credit card | 24% | $7,200 | $600 |
| HELOC | 8.5% | $2,550 | $213 |
| Annual savings | - | $4,650 | $387 |
Nearly $400 per month that was going to a credit card issuer as interest instead pays down your principal. On $30,000 of carried debt, consolidation typically shaves 3-5 years off the payoff timeline while cutting total interest paid by more than half.
The math is even more dramatic at higher balances. On $75,000 in cards at 24% consolidating to a HELOC at 8.5%, you save roughly $11,600 per year in interest.
The critical caveat: the "don't run them back up" problem
Every HELOC lender knows this pattern: borrower consolidates $40,000 of cards into a HELOC. Six months later, the cards have $15,000 back on them. A year later, they're maxed again. Now the borrower has $40,000 on the HELOC AND $40,000 on the cards — the debt doubled.
This is why I refuse to originate a consolidation HELOC for a borrower who hasn't done the underlying behavior work first. If you've been living beyond your income and using cards as the safety valve, consolidating just resets the safety valve. You need to solve the spending problem before consolidating, not with the consolidation.
Practical test: if you cut the cards up (or froze them in the freezer, or moved them to a different room) for 30 days and your finances still balanced, you're probably ready to consolidate. If you'd need to keep the cards accessible to make the month work, you're not — solve the income/expense gap first.
Where the credit card actually wins
Rewards on a balance you always pay in full. A 2% cash back card used for $30,000/year of regular spending, paid in full each month, returns $600 per year in rewards. There's no interest cost because you're not carrying a balance. A HELOC can't replicate that. If you have the discipline to pay statements in full, credit cards are one of the best-value products in retail finance.
Purchase protection. Extended warranties, purchase protection, price protection, return protection, rental car coverage, trip insurance. Cards bundle these into a product you're already using. A HELOC draw is just money — you get none of those protections.
Fraud protection. Credit card fraud is a headache but rarely costs you money. Once you dispute the charge, you're made whole. HELOC or debit fraud is a much bigger fight to unwind.
Small, short purchases with 0% intro APR. If you need $4,000 for a home appliance and you can pay it off in 15 months on a 0% promo card, the effective borrowing cost is zero minus the 3-5% balance transfer fee. That beats any HELOC on a purchase that small.
Building credit without collateral. Younger borrowers or those rebuilding credit need credit card history. A HELOC doesn't substitute for that.
The three-question framework
When someone asks me whether to use a HELOC or a credit card for a specific expense, I ask:
- Are you going to pay it off within one billing cycle? If yes, use the credit card and take the rewards. Rate doesn't matter.
- Can you pay it off within a 0% intro APR window (12-21 months)? If yes, the promo card is often cheaper than a HELOC after closing costs. Watch out for the balance transfer fee.
- Will this balance sit and accrue interest for more than about 18 months? If yes, the HELOC saves you meaningful money. Consolidate or borrow from the HELOC directly.
The behavior test I run with every consolidation borrower
Before I close a consolidation HELOC, I ask the borrower to do three things:
1. Write down why the cards got to their current balance. If the answer is a specific one-time event (medical, business setback, divorce), consolidation is defensible — the cause is behind you and won't re-run up the cards. If the answer is chronic overspending or income shortfall, consolidation without behavior change makes the problem worse, not better.
2. Build a working monthly budget that balances at current income. The budget must include the HELOC payment. If the budget only works assuming a raise, a bonus, or "cutting back," we're not ready to close.
3. Physically distance yourself from the cards. Lock them in a drawer. Freeze them in ice. Delete them from Apple Pay. Whatever the analog, the friction of using them again needs to increase. Consolidation without distance from the cards has a failure rate approaching 60% within two years.
The lender's honest verdict
The HELOC-vs-credit-card comparison is one of the few in personal finance where the "obvious" answer (HELOCs are cheaper by 15 points, use the HELOC) is actually correct in the majority of real scenarios. The rate gap is enormous, the tax treatment can be favorable, and the credit-score impact is usually positive.
The failure mode is behavioral, not financial. The math almost always says consolidate. The behavior often says don't consolidate yet. Get honest about which you are before signing the papers.
Run the consolidation math on your actual balances
A free rate quote takes about five minutes. Once you have real HELOC numbers, you can calculate what consolidating your specific card balances would save you per month.
FAQ
Should I use a HELOC to pay off credit card debt?
Yes, if you have equity, discipline, and can afford the payment in a bad month. The rate savings are typically 14-16 percentage points — enormous.
How much cheaper is a HELOC than a credit card in 2026?
About 14-16 percentage points. On a $30,000 balance held for a year, that's roughly $4,500 in interest savings.
Does using a HELOC to pay off cards help my credit score?
Usually yes — often by 30-60 points within 60 days because revolving utilization drops sharply.
When is a credit card actually better than a HELOC?
When you'll pay the balance in full each month (rewards win), or you can use a 0% intro APR promo to pay off a small balance inside the promo window.
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