A HELOC is a revolving credit line secured by your home's equity

A HELOC (home equity line of credit) is a loan where the lender gives you access to borrow money based on how much equity you have built in your home. You don't get the money all at once. Instead, you get a credit limit—say $50,000—and you can borrow from it whenever you need to, up to that limit, over a set period called the draw period. It works like a credit card, except your home is collateral if you don't pay it back.

The lender determines your credit limit by looking at your home's current value, what you still owe on your mortgage, and your credit history. If your home is worth $300,000 and you owe $200,000, you have $100,000 in equity. Most lenders will let you borrow 80 to 85 percent of that equity, so roughly $80,000 to $85,000.

You only pay interest on the money you actually borrow, not on your entire credit limit. This makes a HELOC different from a home equity loan, where you get a lump sum upfront and pay interest on all of it immediately.

Key Takeaways

  • A HELOC lets you borrow against your home's equity on an as-needed basis, similar to a credit card but with your house as security.
  • You pay interest only on the amount you borrow, not on your full credit limit, which can make it cheaper than other forms of borrowing if you don't use the entire line.
  • Most HELOCs have a draw period (typically 5 to 10 years) when you can borrow, followed by a repayment period when you can no longer borrow and must pay back what you owe.
  • Interest rates on HELOCs are usually variable, meaning your monthly payment can go up or down as rates change in the market.
  • If you stop paying a HELOC, the lender can foreclose on your home because it is secured by your property.

How the draw period and repayment period work

A HELOC typically has two phases. During the draw period—usually 5 to 10 years—you can borrow money whenever you want, up to your credit limit. You make monthly payments, but you're often only required to pay interest, not principal. Some lenders let you pay interest-only; others require you to pay some principal too. This phase is flexible: you can borrow $5,000 one month, pay it back, then borrow $15,000 the next month.

After the draw period ends, you enter the repayment period, which typically lasts 10 to 20 years. Now you can no longer borrow new money. You must repay everything you borrowed, plus interest, in monthly installments. Your payment will likely jump significantly because you're now paying down principal, not just interest. If you borrowed $30,000 during the draw period and paid back only interest, you suddenly owe that full $30,000 during repayment.

This structure means you need to plan ahead. Many homeowners are surprised by how much their payment increases when the repayment period begins. Some refinance into a new HELOC or a home equity loan to avoid that payment shock.

Variable interest rates and payment risk

Most HELOCs have variable interest rates, which means your rate is tied to a market index (usually the prime rate) plus a margin the lender adds. When the prime rate goes up, your rate goes up. When it goes down, your rate goes down. Your monthly payment changes along with it.

This is different from a fixed-rate mortgage, where your rate and payment stay the same for 15 or 30 years. With a HELOC, you might pay $200 a month one year and $350 the next if rates rise. This unpredictability can make budgeting harder, especially during the repayment period when you're already paying principal and interest.

Some lenders offer HELOCs with a fixed rate for part of the draw period, then variable for the rest. Others let you convert portions of your balance to a fixed rate. These options cost more upfront but give you payment stability. If you're on a tight budget or rates are already high, a fixed-rate home equity loan might be a safer choice than a HELOC.

Costs and fees to expect

Opening a HELOC involves costs similar to a mortgage. You'll typically pay an origination fee (usually 0.5 to 1 percent of your credit limit), an appraisal fee (to determine your home's value), and possibly a title search fee. Some lenders charge annual maintenance fees just to keep the line open, even if you don't use it. A few charge a fee if you close the account early.

These costs add up. On a $50,000 HELOC, an origination fee of 1 percent is $500, plus $300 to $500 for an appraisal. Some lenders waive these fees to compete for your business, so it's worth shopping around. Ask each lender for a written estimate of all costs before you commit.

You should also understand what happens to your rate after the draw period ends. Some lenders increase the margin (the amount they add to the prime rate) during repayment, which makes your rate higher even if the prime rate stays flat. Read the fine print or ask the lender directly.

When a HELOC makes sense versus other options

A HELOC works well if you need money over time but don't know exactly how much or when. Home renovations, medical bills, or a child's education expenses are common reasons. You borrow as you go, so you're not paying interest on money you haven't used yet. It's also cheaper than credit cards or personal loans because your home secures it and rates are lower.

A home equity loan is better if you need a large sum all at once and want a fixed rate and fixed payment. You get the money immediately, and your payment never changes. The trade-off is you pay interest on the full amount from day one, even if you don't spend it right away.

A cash-out refinance replaces your entire mortgage with a new one for a larger amount and gives you the difference in cash. This makes sense if you want to lock in a lower interest rate on your mortgage at the same time you borrow against your equity. It's not a good option if current rates are higher than your existing mortgage rate.

The risk of using your home as collateral

This is the most important thing to understand: if you don't pay back a HELOC, the lender can foreclose on your home. You are not just risking the borrowed money; you are risking your house. Credit cards and personal loans are unsecured, so the lender's only recourse is to sue you or send your debt to a collection agency. A HELOC is different because your home backs it.

This risk is why a HELOC should never be used for discretionary spending or to pay off credit card debt unless you have a clear plan to change your spending habits. Many homeowners have lost their homes after taking out a HELOC for a vacation or a car, then struggling to repay when their income dropped or rates spiked.

Before opening a HELOC, make sure you have stable income and a realistic budget for both the draw period and the repayment period. Calculate what your payment will be when the repayment period begins and confirm you can afford it. If you can't, a HELOC is not the right tool.

How to shop for a HELOC

Start by checking your credit score and getting your home appraised or researching recent comparable sales in your area to estimate your equity. Then contact at least three lenders—your current mortgage lender, a local bank, and an online lender. Ask each one for a written Loan Estimate that shows your credit limit, interest rate, all fees, the length of the draw and repayment periods, and what happens to your rate after the draw period ends.

Compare the total cost, not just the interest rate. A lender with a slightly higher rate but no annual fee might be cheaper overall than one with a low rate and a $100 yearly maintenance fee. Pay attention to the margin (the amount added to the prime rate) because that's what you'll pay during the repayment period, and it varies by lender.

Ask whether the lender will lock in a rate during the draw period or offer the option to convert to a fixed rate later. These features cost more but reduce your payment risk. Once you've chosen a lender, you'll go through an application, appraisal, and title search before closing, which typically takes 2 to 6 weeks.

Frequently Asked Questions

Can I use a HELOC for anything I want?

Legally, yes. Lenders don't restrict how you spend the money. Practically, you should only borrow for something that improves your financial situation or is truly necessary—home repairs, education, or consolidating high-interest debt. Using a HELOC to fund a lifestyle you can't afford puts your home at risk.

What if interest rates go up a lot during my draw period?

Your interest rate will rise, and your monthly payment will increase. If you're in the draw period and only paying interest, the increase is manageable. If you're in the repayment period and paying principal plus interest, a rate spike can make your payment unaffordable. This is why some people lock in a fixed rate or refinance when rates are favorable.

Can I have a HELOC and a mortgage at the same time?

Yes. Your HELOC is a second lien on your home, behind your mortgage. If you default, the mortgage lender gets paid first from the sale of your home, and the HELOC lender gets what's left. This is why HELOC rates are slightly higher than mortgage rates—the lender takes on more risk.

What happens to my HELOC if I sell my house?

You must pay off the entire HELOC balance from the sale proceeds before you close. The lender will not allow the sale to complete until the line is paid in full. If you owe more on the HELOC than your home sells for, you'll have to pay the difference out of pocket.

Is a HELOC the same as a home equity loan?

No. A HELOC is a revolving line of credit you draw from as needed; a home equity loan is a lump sum you receive upfront. A HELOC usually has a variable rate; a home equity loan is typically fixed. A HELOC has a draw period and a repayment period; a home equity loan has one repayment period from the start.