Understanding Home Equity Lines of Credit (HELOCs)

A Home Equity Line of Credit lets you borrow against your home's value, offering a flexible way to access funds for various needs.

By Garret Merkley · Explainer · Jun 5, 2026

Branched from Calculating Your Home Equity: What You Need to Know

Quick take

A HELOC is a revolving line of credit secured by your home's equity, allowing you to borrow funds as needed.
It typically has a draw period (where you borrow) and a repayment period (where you pay back principal and interest).
Interest rates are usually variable, meaning your monthly payments can change over time.
HELOCs are often used for home improvements, debt consolidation, or as an emergency fund, but your home serves as collateral.

A Home Equity Line of Credit (HELOC) is a revolving credit line that lets you borrow money using your home's equity as collateral. Think of it like a credit card, but instead of being unsecured, it's tied directly to the value you've built up in your home. This means the lender has a claim on your property if you can't repay.

How It Works: The Draw and Repayment Periods

A HELOC operates in two main phases. The first is the "draw period," which typically lasts 5 to 10 years. During this time, you can borrow funds as you need them, up to your approved credit limit. You only pay interest on the amount you've actually borrowed, not the entire line of credit. Minimum payments during the draw period are often interest-only, keeping them relatively low. Once the draw period ends, the "repayment period" begins, usually lasting 10 to 20 years. During this phase, you can no longer draw new funds, and you must begin making principal and interest payments to pay back the outstanding balance.

How It Works: Variable Interest Rates

Unlike a fixed-rate loan, most HELOCs come with a variable interest rate. This rate is usually tied to a benchmark index, like the prime rate, plus a margin set by the lender. As the benchmark rate changes, your HELOC interest rate will also adjust, causing your minimum monthly payments to fluctuate. While variable rates can be lower than fixed rates initially, they introduce the risk that your payments could significantly increase if interest rates rise. Some HELOCs offer the option to convert portions of your variable-rate balance to a fixed rate for added payment predictability.

A HELOC can be a valuable financial tool when you need flexible access to funds for specific purposes, rather than a single lump sum. It's often used for major home renovations, allowing you to draw funds as project stages are completed, or for consolidating high-interest debt like credit card balances into a lower-interest, potentially tax-deductible loan. It can also serve as an emergency fund for unexpected expenses. However, because your home is collateral, it's crucial to consider the risks: defaulting on a HELOC could lead to foreclosure, and rising interest rates could make payments unaffordable. It makes sense when you have a clear plan for the funds, a stable income, and a comfortable level of home equity.

How is a HELOC different from a home equity loan?

A HELOC is a revolving line of credit, letting you borrow, repay, and re-borrow funds as needed up to a limit, with variable interest. A home equity loan is a lump-sum loan with a fixed interest rate, repaid over a set period.

What are the typical costs involved with a HELOC?

You might encounter application fees, annual fees, appraisal costs, and closing costs, similar to a mortgage. Some lenders offer no-cost HELOCs, but these often come with higher interest rates.

Can my HELOC limit change after I'm approved?

Yes, lenders can reduce your credit limit or even freeze your HELOC if your home's value significantly declines or if your financial situation worsens, even if you've been making payments on time.

Is the interest paid on a HELOC tax-deductible?

Under current tax law, interest on a HELOC is generally tax-deductible only if the funds are used to buy, build, or substantially improve the home that secures the loan. It's not deductible if used for personal expenses like debt consolidation or vacations. Consult a tax professional for personalized advice.