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Understanding Home Equity Lines of Credit (HELOCs)

A flexible way to borrow against your home's equity, offering a revolving credit line for various financial needs.

By Garret Merkley · Explainer · Jun 6, 2026
Branched from How Home Equity Loans Work: Tapping Into Your Home's Value
Quick take
  • A HELOC is a revolving line of credit secured by your home's equity, allowing you to borrow funds as needed.
  • It operates in two phases: a 'draw period' for borrowing and an 'repayment period' for paying back principal and interest.
  • Interest rates are typically variable, meaning your monthly payments can change over time.
  • It offers flexibility for expenses like home renovations or debt consolidation, but your home serves as collateral.

A Home Equity Line of Credit (HELOC) is a revolving line of credit that lets you borrow money using your home's equity as collateral. Unlike a traditional loan that gives you a lump sum upfront, a HELOC works more like a credit card, allowing you to access funds as needed, up to a pre-approved limit, and only pay interest on the amount you've actually used.

How a HELOC Operates

A HELOC typically has two main phases: the "draw period" and the "repayment period." During the draw period, which often lasts 5 to 10 years, you can borrow money, make interest-only payments, or pay down principal. You can draw funds multiple times, repay them, and then draw again, as long as you stay within your credit limit. This flexibility makes it suitable for ongoing projects or unexpected expenses where the exact amount needed isn't clear upfront.

Variable Interest Rates and Repayment

Most HELOCs come with a variable interest rate, meaning it can change over time based on an underlying index, such as the prime rate. This flexibility can be a benefit if rates fall, but it also means your monthly payments could increase significantly if rates rise. Once the draw period ends, the repayment period begins, typically lasting 10 to 20 years. During this time, you can no longer draw new funds. Instead, you must begin making payments that cover both principal and interest, often resulting in significantly higher monthly payments than during the draw period.

A HELOC can be a powerful tool for homeowners who need flexible access to funds for various purposes, such as home renovations, consolidating high-interest debt, or covering unexpected expenses. It's particularly useful when you're unsure of the exact amount you'll need or if you anticipate needing funds over an extended period. Because it's secured by your home, HELOCs often offer lower interest rates than unsecured personal loans or credit cards. However, it's vital to remember that your home is collateral, meaning failure to repay could lead to foreclosure.

HELOC vs. Home Equity Loan
  • HELOC: Revolving credit line, variable rate, flexible access to funds, interest-only option during draw period.
  • Home Equity Loan: Lump sum upfront, fixed rate, fixed monthly payments, no re-borrowing once repaid.
Can I get a HELOC if I still have a mortgage?
Yes, HELOCs are typically a second mortgage. Lenders consider your total loan-to-value (LTV) ratio, which is the sum of your outstanding mortgage and the new HELOC limit, against your home's appraised value.
What happens if interest rates go up with a HELOC?
Since most HELOCs have variable interest rates, your monthly payment will increase if the underlying index rate rises. This can make budgeting more challenging and could lead to higher overall costs over the life of the loan.
Are there closing costs for a HELOC?
Yes, HELOCs often have closing costs, similar to a mortgage, though some lenders may offer no-cost options in exchange for a slightly higher interest rate or early termination fees. These costs can include appraisal fees, title search fees, and administrative charges.
What is the maximum I can borrow with a HELOC?
The maximum amount you can borrow depends on your home's equity, your creditworthiness, and the lender's policies. Most lenders allow you to borrow up to 80-90% of your home's appraised value, minus your outstanding mortgage balance.