HELOC rates are the interest you pay on borrowed money against your home's equity, and they change over time based on market conditions and your lender's pricing

A HELOC rate is the percentage of interest charged on the balance you draw from your home equity line of credit. Unlike a fixed-rate mortgage, most HELOC rates are variable — they move up and down tied to a benchmark rate set by the Federal Reserve, plus a margin your lender adds. This means your monthly payment can change, sometimes significantly, during the life of the loan.

The rate you're offered depends on several factors: your credit score, how much equity you have, your debt-to-income ratio, current market conditions, and your lender's own pricing. Two borrowers with the same home value and equity can receive different rates based on these differences.

Key Takeaways

  • Most HELOC rates are variable and tied to the prime rate, which means your interest rate and monthly payment will change as the Federal Reserve adjusts its benchmark rate.
  • Your personal rate depends on your credit score, the amount of equity you have, your income relative to debt, and the specific lender you choose.
  • The draw period (usually 5 to 10 years) is when you can borrow and pay interest only; the repayment period (usually 10 to 20 years) is when you repay principal plus interest.
  • Rate caps limit how high your rate can go during the draw period and over the life of the loan, but not all HELOCs have them.
  • Comparing rates across multiple lenders matters because the margin they add to the prime rate can differ by a full percentage point or more.

How the prime rate affects your HELOC rate

Most HELOCs are priced as the prime rate plus a margin. The prime rate is the interest rate that banks charge their most creditworthy customers, and it moves in lockstep with the Federal Reserve's decisions. When the Fed raises its benchmark rate, the prime rate rises within days, and your HELOC rate rises automatically.

The margin is what your lender adds on top of the prime rate — typically between 0.5% and 2.5%, depending on your creditworthiness and the lender's risk assessment. A borrower with a 750 credit score might get prime plus 0.75%, while a borrower with a 650 score might get prime plus 1.75%. This margin usually stays the same for the life of the loan, even if rates rise or fall.

For example, if the prime rate is 8.5% and your margin is 1%, your HELOC rate would be 9.5%. If the Fed raises rates and the prime rate moves to 9%, your new rate becomes 10%. This is why HELOC payments can jump unexpectedly — the rate change is automatic and happens without your lender needing to approve anything.

What credit score and equity mean for your rate

Lenders view credit score as the strongest predictor of whether you'll repay. A score above 740 typically qualifies you for the lowest margins available. Scores between 700 and 740 usually get a slightly higher margin. Below 700, margins increase noticeably, and below 650, many lenders either decline or charge margins that make the HELOC expensive compared to other borrowing options.

The amount of equity you have also affects your rate. Equity is the difference between what your home is worth and what you owe on your mortgage. If you're borrowing against 50% of your equity, lenders see less risk than if you're borrowing against 90%. Most lenders cap HELOC borrowing at 80% to 85% of your home's value minus what you owe on your first mortgage. Borrowing closer to that limit usually means a higher rate.

Your debt-to-income ratio — the total of your monthly debt payments divided by your gross monthly income — also matters. If you already carry significant debt, a lender may charge a higher margin to offset the risk that you won't be able to handle a higher payment if rates rise.

The difference between draw and repayment periods

Most HELOCs have two phases. During the draw period (typically 5 to 10 years), you can borrow money as you need it and pay interest only on what you've drawn. Your monthly payment is usually low because you're not repaying principal. Once the draw period ends, the repayment period begins (typically 10 to 20 years), and you can no longer borrow. Now you must repay both principal and interest, and your payment jumps significantly.

This payment shock is one of the biggest surprises HELOC borrowers face. A borrower who borrowed $50,000 during the draw period and paid only interest might have had a $300 monthly payment. When repayment starts, that same balance now requires a $400 to $500 monthly payment because principal is included. If rates have also risen, the payment can be even higher.

Some lenders offer HELOCs that convert to a fixed rate during the repayment period, which locks in your rate and protects you from further increases. Others require you to refinance or pay off the balance when the draw period ends. Ask your lender what happens at the end of the draw period before you sign.

Rate caps and how they protect you

A rate cap is a limit on how high your interest rate can rise. Not all HELOCs have them, so this is something to ask about specifically. Caps come in three types: a periodic cap (how much the rate can rise at each adjustment, usually 1% or 2%), a lifetime cap (the highest rate you can be charged over the entire life of the loan, usually 10% to 12% above your starting rate), and a floor (the lowest rate you can be charged, which protects the lender if rates fall dramatically).

A HELOC without a lifetime cap is risky. If you start at 7% and rates climb for years, your rate could theoretically reach 12%, 15%, or higher. With a lifetime cap of 12%, you know the worst-case scenario. This matters most if you're planning to carry a balance into the repayment period, because that's when you're most vulnerable to payment shock.

Caps are negotiable in some cases, especially if you have strong credit and are borrowing a large amount. It's worth asking whether your lender will offer a lower lifetime cap or a lower periodic cap in exchange for a slightly higher starting rate.

How to compare HELOC rates from different lenders

Because the margin varies by lender, shopping around matters. A bank might offer prime plus 1%, while a credit union offers prime plus 0.75%, and an online lender offers prime plus 1.25%. Over the life of a HELOC, that 0.5% difference can mean thousands of dollars in interest.

When comparing, ask each lender for the same information: the margin, the prime rate index they use (most use the Wall Street Journal prime, but some use others), the periodic and lifetime caps, any fees (annual fees, closing costs, or inactivity fees), and what happens at the end of the draw period. Write these down side by side so you can see the real differences.

Don't assume the lender with the lowest starting rate is the cheapest overall. A lender offering prime plus 0.5% but charging a $500 annual fee and a $1,500 closing cost might cost more than a lender offering prime plus 0.75% with no annual fee and $300 in closing costs. Calculate the total cost over the first few years to compare accurately.

What happens if rates rise sharply

If the Federal Reserve raises rates quickly — as happened in 2022 and 2023 — HELOC borrowers can face steep payment increases. A borrower with a $100,000 balance at 6% paying interest-only might have had a $500 monthly payment. If rates rise to 9%, that same payment becomes $750. If the draw period ends and repayment begins, the payment could exceed $1,000.

This is why rate caps matter and why it's important to think about your ability to handle a higher payment before you open a HELOC. Some borrowers use a HELOC as an emergency fund but never intend to borrow much. Others use it to fund renovations or consolidate debt. The way you plan to use it affects how much rate risk you can tolerate.

If you're concerned about rising rates, some lenders offer the option to convert your HELOC balance to a fixed-rate loan during the draw period. This locks in your rate and converts the variable payment to a predictable one. The fixed rate is usually higher than your current variable rate, but it removes the uncertainty.

Frequently Asked Questions

Can I lock in a fixed rate on my HELOC?

Some lenders allow you to convert all or part of your HELOC balance to a fixed-rate loan during the draw period. The fixed rate is typically higher than your current variable rate, but it removes the risk of payment increases. Not all lenders offer this option, so ask before you open the account.

What's the difference between a HELOC rate and a home equity loan rate?

A HELOC rate is variable and tied to the prime rate, while a home equity loan rate is usually fixed for the entire loan term. A fixed rate is predictable but typically higher than a HELOC's starting rate. A HELOC's starting rate is lower but can rise significantly over time.

Why did my HELOC rate increase if I didn't borrow more?

Your rate increased because the prime rate increased, not because of anything you did. Variable rates move automatically when the Federal Reserve adjusts its benchmark rate. This is why it's called variable — the rate varies throughout the life of the loan.

How often does a HELOC rate adjust?

Most HELOCs adjust monthly or quarterly, depending on the lender's terms. Some adjust annually. Check your loan documents or call your lender to find out how often your rate changes and when the next adjustment date is.

Is a HELOC rate better than a credit card rate?

HELOC rates are almost always lower than credit card rates. Credit cards typically charge 15% to 25%, while HELOCs usually range from 6% to 12%. However, a HELOC is secured by your home, meaning the lender can foreclose if you don't pay. A credit card is unsecured, so the lender has no claim on your property.