What Is a HELOC? Home Equity Line of Credit Explained

Apr 9, 2026

A home equity line of credit (HELOC) turns the equity you have built in your home into a flexible source of funds you can draw on as needed. Before you tap your home’s value, here is exactly how it works — and where to be careful.

To understand how much equity you have built, use our amortization calculator to see your current loan balance at any point in time. If you are considering tapping equity to fund a home purchase, also read our guide on how to get a mortgage.

HELOC Definition

A home equity line of credit (HELOC) is a revolving credit line secured by the equity in your home. Instead of receiving a lump sum, you get access to a credit limit — say $80,000 — and you draw against it as needed during a defined draw period. You only pay interest on what you actually borrow.

Think of it like a credit card where your home serves as collateral and the credit limit is tied to your equity. That structure makes HELOCs flexible but also means your home is at risk if you default.

How Equity Is Calculated

Your equity is the difference between your home’s current market value and the outstanding balance on any mortgages or liens against it. Lenders typically allow you to borrow up to 80%–90% of your home’s value across all loans combined — your first mortgage plus the HELOC.

Example: Your home is worth $400,000. You owe $250,000 on your mortgage. At an 85% combined loan-to-value (CLTV) limit, the maximum total debt is $340,000 ($400,000 × 85%). Subtract your mortgage balance: $340,000 − $250,000 = $90,000 available HELOC limit.

Draw Period vs. Repayment Period

A HELOC has two distinct phases:

Draw period (typically 5 to 10 years) — you can borrow, repay, and borrow again up to your limit. Most lenders require interest-only minimum payments during this phase, though you can pay down principal at any time.
Repayment period (typically 10 to 20 years) — the line closes and you repay the outstanding balance in fixed monthly installments of principal and interest. Your payment will likely increase significantly compared to the draw period.

The end of the draw period can catch borrowers off guard if they have been making interest-only payments. Plan for the transition well in advance.

Variable Interest Rates

HELOCs almost always carry variable interest rates tied to a market index — usually the prime rate. When the Federal Reserve raises rates, your HELOC rate goes up almost immediately. When rates fall, your rate drops too.

Some lenders offer a fixed-rate conversion option that lets you lock in a fixed rate on all or part of your outstanding balance. This can provide predictability during the repayment period. Ask your lender if this feature is available and what it costs.

HELOC vs. Home Equity Loan

Both products use your home’s equity as collateral, but they work differently:

HELOC — revolving credit line, variable rate, flexible draws, interest-only payments available during draw period. Best when you need ongoing access to funds over time.
Home equity loan — lump sum disbursement, fixed rate, fixed monthly payments from day one. Best when you know exactly how much you need and want payment certainty.

A home equity loan is sometimes called a “second mortgage.” HELOCs are more flexible but more rate-sensitive.

Common Uses for a HELOC

Home renovations and improvements (value-adding projects can increase the equity you just borrowed against).
Debt consolidation — replacing high-interest credit card debt with a lower HELOC rate.
Emergency fund buffer — keeping a HELOC open as a safety net without carrying a balance.
College tuition paid in installments over multiple years.
Bridging a gap when buying a new home before selling the current one.

Risks and Downsides

Your home is collateral. If you cannot repay, the lender can foreclose.
Variable rates create uncertainty. A sharp rate increase can significantly increase your required payment.
Temptation to overborrow. Easy access to funds can lead to spending that does not build wealth.
Closing costs. HELOCs typically have modest fees ($0–$500 in many cases), but some lenders charge appraisal and origination fees up to 2%–5% of the line.
Rate-freeze risk. In volatile markets, some lenders can freeze or reduce your credit line if your home’s value drops.

How to Qualify for a HELOC

Lenders evaluate HELOC applications on the same factors as a mortgage refinance:

Sufficient equity (typically 15%–20% remaining after the HELOC).
Credit score of at least 620; 700+ gets the best rates.
Debt-to-income ratio below 43%–50%.
Stable income verified by tax returns and pay stubs.

Tax Deductibility

Interest on a HELOC may be tax-deductible if the funds are used to “buy, build, or substantially improve” the home that secures the loan. If you use HELOC proceeds for other purposes — vacations, car purchases, personal expenses — the interest is generally not deductible. Consult a tax professional to confirm your specific situation.

Frequently Asked Questions

Can I get a HELOC on an investment property?

Some lenders offer HELOCs on non-owner-occupied investment properties, but terms are stricter — lower CLTV limits, higher rates, and more documentation. Most HELOC products target primary residences.

How long does it take to get a HELOC?

Typically 2 to 6 weeks from application to funding, depending on whether the lender requires a full appraisal or accepts an automated valuation model (AVM).

What happens to my HELOC if I sell my home?

The HELOC balance must be paid off at closing, along with your first mortgage. Any remaining proceeds go to you as equity.

Can I open a HELOC and not use it?

Yes. Many homeowners open a HELOC as a financial safety net and never draw from it. Some lenders charge an annual fee ($50–$100) for maintaining an open, unused line, so factor that in.

Is a HELOC the same as a cash-out refinance?

No. A cash-out refinance replaces your existing mortgage with a new, larger loan and gives you the difference in cash. A HELOC is a separate line of credit added on top of your existing mortgage. Which is better depends on your current rate, loan balance, and how much equity you want to access.

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