A HELOC payment depends on how much you borrow and which repayment phase you're in

A Home Equity Line of Credit (HELOC) doesn't have one fixed monthly payment like a loan does. Instead, your payment changes based on how much you've actually drawn from the credit line and what interest rate you're paying that month. On a $30,000 HELOC, you might owe nothing one month if you haven't borrowed anything, or several hundred dollars the next month if you've drawn the full amount and are in the repayment phase.

Most HELOCs work in two phases: a draw period (usually 5 to 10 years) when you can borrow and repay repeatedly, and a repayment period (usually 10 to 20 years) when you can no longer borrow and must pay down what you owe. Your monthly payment is lowest during the draw period and jumps significantly when the repayment period begins.

Key Takeaways

  • During the draw period, you typically pay only interest on what you've borrowed, which could be $50 to $200 per month on a $30,000 HELOC depending on the interest rate.
  • When the repayment period starts, your payment jumps because you must pay both principal and interest, often doubling or tripling your monthly cost.
  • Your actual payment changes every month if your HELOC has a variable interest rate, which most do.
  • The lender sets a minimum payment, but paying only interest during the draw period means you owe the full $30,000 when repayment begins.

Interest-only payments during the draw period

During the draw period, most lenders let you pay interest only on the amount you've borrowed. If you've drawn $20,000 of your $30,000 HELOC and your interest rate is 7%, you'd owe roughly $117 per month in interest alone (that's $20,000 × 0.07 ÷ 12). If rates rise to 9%, that same $20,000 costs you about $150 per month.

The catch: paying interest-only means you're not reducing what you owe. When the draw period ends, you still owe the full $20,000, and now you have to pay it back over the repayment period. Many borrowers are surprised by how much their payment jumps at this transition.

Some HELOCs allow you to pay principal during the draw period, which reduces what you owe later. But the lender won't require it—they'll accept interest-only payments if that's what you choose.

Principal and interest payments during repayment

Once the repayment period begins, you can no longer draw new money and you must pay down the balance. Your payment now covers both interest and principal. On a $30,000 balance at 7% interest over 15 years, your monthly payment would be roughly $237. At 9% interest over the same period, it rises to about $254.

The exact amount depends on three things: how much you actually owe (not the full credit line), the interest rate at that time, and how many years remain in the repayment period. If your HELOC has a variable rate—which most do—your payment can change every month as rates move, even during repayment.

This is where many borrowers run into trouble. They've grown used to paying $100 or $150 per month during the draw period, then suddenly face a $250 or $300 payment they didn't budget for.

How variable interest rates affect your payment

Nearly all HELOCs carry a variable interest rate tied to an index like the prime rate. When the Federal Reserve raises rates, your HELOC rate rises too, usually within one or two billing cycles. When rates fall, your rate falls as well.

This means your monthly payment can change even if you haven't borrowed or repaid anything. During the draw period, a rate increase from 6% to 7% on a $20,000 balance raises your monthly interest payment from about $100 to $117. During repayment, the same rate increase might raise your payment from $237 to $254 on a $30,000 balance.

Some HELOCs include a rate cap—a ceiling above which your rate cannot rise. Common caps are 2% to 3% above your starting rate. If you start at 7% with a 3% cap, your rate can never exceed 10%. But not all lenders offer caps, and some only apply them after the draw period ends, so check your agreement.

Minimum payments and what they actually cover

Your lender sets a minimum monthly payment, usually the greater of a fixed dollar amount (often $25 to $50) or the interest accrued that month. During the draw period, this minimum often covers only interest, which is why your balance doesn't shrink.

If you pay only the minimum during the entire draw period and then face a 15-year repayment period, you're committing to a much larger payment later. Some borrowers use this strategy intentionally—they keep payments low while they need cash flow, then plan to pay more aggressively during repayment. Others don't realize the payment will jump and get caught off guard.

To avoid this surprise, calculate what your payment would be at the start of repayment using your lender's amortization calculator, then budget for it now.

What happens if you pay more than the minimum

You can pay more than the minimum at any time without penalty. Paying principal during the draw period reduces what you owe when repayment begins, which lowers your payment then. For example, if you pay $200 per month during a 10-year draw period instead of just the $100 interest-only minimum, you'll have paid down $12,000 in principal. When repayment starts, you'll owe $18,000 instead of $30,000, and your payment will be correspondingly lower.

Some borrowers treat their HELOC like a traditional loan and pay principal from the start, even though it's not required. This strategy eliminates the payment shock at the end of the draw period.

Comparing a $30,000 HELOC to a fixed-rate loan

A traditional home equity loan for $30,000 has a fixed monthly payment from day one—usually $200 to $300 depending on the rate and term. You know exactly what you'll pay every month for the life of the loan. A HELOC starts lower but becomes unpredictable, especially if rates rise or when the repayment period begins.

HELOCs make sense if you need flexible access to money over time and can handle payment changes. Fixed-rate loans make sense if you want predictability and plan to borrow the full amount upfront. If you're considering a $30,000 HELOC, ask your lender for a payment example showing both the draw period and the first month of repayment at today's rates, so you can see the full picture.

Frequently Asked Questions

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

A home equity loan is a one-time loan with a fixed payment you pay back over a set term. A HELOC is a line of credit you can borrow from repeatedly during the draw period, with payments that change based on how much you've borrowed and what interest rates are. HELOCs typically start with lower payments but become unpredictable.

Can my HELOC payment go down if interest rates fall?

Yes. Most HELOCs have variable rates, so when the prime rate falls, your rate and payment fall too. If rates drop 1%, your monthly payment on a $30,000 balance could fall by $25 or more. But the reverse is also true—rates can rise and increase your payment.

What happens if I can't afford my payment when repayment starts?

Contact your lender before you miss a payment. Some lenders allow you to extend the repayment period, which lowers your monthly payment but costs more in interest over time. Others may refinance the balance into a fixed-rate loan. Missing payments damages your credit and can lead to foreclosure, so reach out early.

Do I have to borrow the full $30,000?

No. You can borrow as little or as much as you need during the draw period, up to your credit limit. You only pay interest on what you've actually borrowed. If you borrow $10,000 and leave $20,000 unused, you pay interest only on the $10,000.

Can I pay off my HELOC early without a penalty?

Most HELOCs have no prepayment penalty, so you can pay off the balance whenever you want. Check your agreement to confirm, but the vast majority allow early payoff. Paying off early saves you interest and eliminates the payment shock at the end of the draw period.