Home Equity Line of Credit 2026: Rules, Rates, and Risks

Americans are sitting on record home equity — over $32 trillion as of early 2026. A HELOC lets you tap it. But HELOCs carry a variable rate tied to the prime rate, and many borrowers don't understand what happens when the draw period ends. Here's what you need to know before opening one.

How a HELOC works

A HELOC is a revolving line of credit secured by your home equity. Unlike a home equity loan (lump sum, fixed rate), a HELOC works like a credit card with your home as collateral.

Draw period (typically 10 years)

You can borrow and repay freely up to your credit limit. Most HELOCs charge interest-only payments during this period — making monthly payments deceptively low. A $50,000 HELOC at 8.5% = $354/month interest-only. The principal isn't going anywhere.

Repayment period (typically 20 years)

At draw period end, the line closes. You now repay whatever balance remains over 20 years at the then-current variable rate. If you borrowed $50,000 and paid interest-only for 10 years, you've paid ~$42,500 in interest and still owe $50,000. Now repayment begins: ~$438/month if rate stays at 8.5%.

How much can you borrow?

Most lenders allow combined loan-to-value (CLTV) up to 80–85%:

HELOC limit = (Home value × 0.85) − Outstanding mortgage balance

Example: $600,000 home, $350,000 mortgage remaining:
($600,000 × 0.85) − $350,000 = $510,000 − $350,000 = $160,000 maximum HELOC

Is HELOC interest tax-deductible?

The Tax Cuts and Jobs Act (2017) changed HELOC deductibility significantly. HELOC interest is only deductible if the loan is used to buy, build, or substantially improve the home securing the debt. Using HELOC funds for:

• Home renovation / addition — deductible
• Debt consolidation — NOT deductible
• Paying tuition — NOT deductible
• Vacation / consumer spending — NOT deductible
• Investment purchases — complicated (interest tracing rules apply)

Combined mortgage + HELOC debt must be under $750,000 to deduct any interest (married filing jointly). You must itemize deductions — only 10–12% of filers do in 2026.

When a HELOC makes financial sense

• Home renovations that add value: Kitchen remodel, bathroom addition, HVAC replacement. Deductible interest + ROI on the improvement.
• Bridge financing: Buying a new home before selling the old one — temporary, defined payoff date.
• Emergency fund backup: A $50,000 HELOC you never draw on costs ~$75/year in fees. Think of it as a backstop, not a source of spending money.

When to avoid a HELOC

• Consolidating credit card debt: You're converting unsecured debt to secured debt — your home is now at risk if you can't pay. And the behavior that created the credit card debt often continues.
• Consumer spending / vacations: Using home equity for depreciating purchases is a long-term wealth-destruction strategy.
• In a declining real estate market: If home values fall, you could end up underwater (owing more than the house is worth), with the HELOC lender freezing or reducing your line.

HELOC vs. home equity loan vs. cash-out refinance