A home equity loan is a second mortgage. So is a HELOC. The phrase “second mortgage” describes a category — any loan secured by your home that sits behind your primary mortgage in lien position — and a home equity loan is one specific product inside that category. Comparing the two as opposites is one of the most common terminology mix-ups in consumer lending.
The real question most people are actually asking is: which type of second mortgage should I get? That comparison — home equity loan vs. HELOC vs. cash-out refi — is the useful one.
The Category Tree
Second mortgages come in two main forms:
- Home equity loan — fixed-rate, lump-sum payout, fixed monthly payments
- HELOC — variable rate, revolving credit line, draw as needed
Both sit in second lien position behind your primary mortgage. If you ever default and the house is sold, the first mortgage gets paid first; the second gets what’s left.
A cash-out refinance isn’t a second mortgage at all — it replaces your first mortgage with a larger one. Often discussed alongside, but technically a different animal.
Side-by-Side Comparison
| Feature | Home Equity Loan | HELOC | Cash-Out Refi |
|---|---|---|---|
| Lien position | Second | Second | First (replaces existing) |
| Rate type | Fixed | Variable (usually) | Fixed or adjustable |
| Payout | Lump sum | Revolving line | Lump sum |
| Repayment | Fixed monthly for set term | Interest-only draw, then P&I | Fixed monthly for set term |
| Best for | Defined one-time expense | Ongoing or unpredictable | Refi + cash when rates favor |
| Closing costs | Moderate | Low to moderate | High |
| Tax-deductible interest | If for home improvement | If for home improvement | If for home improvement |
When Each One Wins
Pick a home equity loan when you know exactly what you need and want predictable payments — a defined renovation, debt consolidation, a major one-time purchase.
Pick a HELOC when your spending will be spread over time — a multi-phase renovation, ongoing tuition, a financial cushion for self-employment.
Pick a cash-out refi when current mortgage rates are lower than your existing rate, and the new first-mortgage payment still makes sense. Otherwise you’re refinancing into a worse first mortgage just to access equity.
Why the Confusion Exists
Lender marketing is partly to blame. Banks often advertise “home equity loans” and “second mortgages” on separate landing pages as if they’re different products — usually because “home equity loan” sounds friendlier. But on the actual loan documents, it’s the same instrument.
What “Second” Means for You
The “second” isn’t a quality ranking — it’s lien priority. In foreclosure, the first lender gets paid before the second. Because second-lien lenders carry more risk, second-mortgage rates are almost always higher than first-mortgage rates — typically by 1 to 3 percentage points.
That’s the trade-off you accept in exchange for keeping your existing low-rate first mortgage intact, which is exactly why second mortgages got so popular when rates rose sharply in recent years.
Bottom Line
Stop comparing “second mortgage” to “home equity loan” — they’re the same thing, said two different ways. The real decision is between a home equity loan, a HELOC, and a cash-out refinance, based on how you’ll use the money and what rates look like when you apply. Get quotes from at least two lenders on the same day for an apples-to-apples read.
