How HELOC payments work

A HELOC payment has two parts: interest on the money you've borrowed, and sometimes principal (the amount you borrowed itself). During the draw period—usually 5 to 10 years—you typically pay only interest each month, and the payment amount changes as interest rates move or as you borrow more. Once the draw period ends, you enter the repayment period, usually 10 to 20 years, when you must pay back both principal and interest in fixed monthly amounts.

The exact payment depends on three things: how much you've drawn from the line, the current interest rate on your HELOC, and whether you're in the draw or repayment period. Because interest rates on HELOCs are variable, your payment can go up or down throughout the life of the loan. This is different from a fixed-rate home equity loan, where the payment stays the same.

Key Takeaways

  • During the draw period, you typically pay interest only, and your monthly payment changes when interest rates change or when you borrow more money.
  • Once the draw period ends, you move to the repayment period and must pay both principal and interest in a fixed monthly amount.
  • Your HELOC payment is calculated by multiplying your outstanding balance by the current interest rate and dividing by 12 months.
  • If you only make interest-only payments during the draw period, you will owe the full borrowed amount as a lump sum when the draw period ends.
  • Some lenders allow you to pay down principal during the draw period, which reduces what you owe when repayment begins.

Interest-only payments during the draw period

During the draw period, most HELOCs let you pay interest only. This means your monthly payment covers only the cost of borrowing the money, not the borrowed amount itself. If you've borrowed $50,000 at 8% annual interest, your monthly interest-only payment would be roughly $333 (that's $50,000 × 0.08 ÷ 12). The next month, if rates stayed the same but you borrowed another $10,000, your payment would jump to about $400.

Interest-only payments are lower than payments that include principal, which is why many people choose this option. But there's a catch: at the end of the draw period, you still owe the full amount you borrowed. Some borrowers are surprised by this and find themselves unable to afford the much larger payment that begins when repayment starts.

Your lender will tell you the exact interest rate and how it's calculated. Most HELOCs use a variable rate tied to the prime rate, which means your payment can change several times a year. Some lenders offer a fixed-rate option for part or all of the HELOC, which locks in your rate and payment for a set time.

Principal-plus-interest payments and the repayment period

When the draw period ends, your HELOC moves into the repayment period. At this point, you can no longer borrow new money, and you must pay both principal and interest each month. The lender calculates a fixed monthly payment based on the total amount you owe, the remaining interest rate, and the length of the repayment period.

If you borrowed $50,000 during the draw period and paid only interest, you still owe $50,000 when repayment begins. The lender will spread that $50,000 plus interest over the repayment period—say, 15 years—and your monthly payment might be around $400 to $500, depending on the rate. This is often a shock to borrowers who were paying $333 a month and suddenly face a payment that's 50% higher.

Some lenders allow you to convert part of your HELOC to a fixed-rate loan during the repayment period, which locks in your payment for the rest of the loan. Others require you to pay off the entire balance at the end of the draw period if you don't want a variable-rate repayment plan.

How interest rates affect your payment

Because most HELOCs have variable interest rates, your payment moves up and down with the market. When the Federal Reserve raises rates, your HELOC rate typically rises within one to three months, and your payment goes up. When rates fall, your payment usually falls too. This can make budgeting difficult because you don't know exactly what you'll owe next month.

Your lender is required to tell you how often the rate can change and whether there are caps on how high it can go. Many HELOCs have a lifetime cap—for example, the rate can never go higher than 12% even if market rates spike. Some also have a floor, meaning the rate won't drop below a certain level even if the prime rate falls.

During the draw period, if you borrow more money, your payment increases immediately because you're paying interest on a larger balance. If you pay down your balance, your payment decreases. This flexibility is one reason people use HELOCs instead of fixed-rate loans.

Minimum payments and what happens if you pay less

Your lender sets a minimum monthly payment, which during the draw period is usually just the interest owed. You're not required to pay more, but you can. If you pay only the minimum during the entire draw period, you'll owe the full borrowed amount when repayment begins.

Some borrowers choose to pay down principal during the draw period even though they don't have to. Paying an extra $100 or $200 a month toward principal reduces what you owe when the repayment period starts, which means a lower payment later. This strategy works well if you have the cash flow and want to reduce the shock of the payment jump.

If you miss a payment or pay late, your lender can charge a late fee and may raise your interest rate. In extreme cases, the lender can freeze your line of credit, meaning you can't borrow any more money, and can demand that you pay off the entire balance immediately.

Calculating your own HELOC payment

To estimate your monthly payment during the draw period, multiply your current balance by your annual interest rate, then divide by 12. For example: $40,000 balance × 0.075 (7.5% rate) ÷ 12 = $250 per month in interest.

To estimate your payment during the repayment period, you need to know the total amount owed, the interest rate, and the number of months remaining. Most lenders provide a payment calculator on their website, or you can ask your lender for an amortization schedule, which shows exactly what you'll owe each month for the life of the loan.

Keep in mind that these are estimates. Your actual payment depends on the exact rate your lender charges, which can vary based on your credit score, the amount you borrow, and current market conditions. Always ask your lender for a written estimate before you open a HELOC.

What to expect when the draw period ends

As your draw period approaches its end date, your lender will send you a notice explaining what happens next. You'll learn the exact repayment period length, the new payment amount, and whether your rate will stay variable or can be converted to fixed. Some lenders give you 60 to 90 days' notice; others give less.

If you can't afford the new payment, you have a few options. You can ask your lender to extend the draw period, though not all lenders allow this. You can try to refinance the HELOC into a fixed-rate home equity loan with a longer term to lower the payment. Or you can pay off the HELOC with cash, a home sale, or another loan.

The worst option is to do nothing and let the payment shock hit you unprepared. If you can't pay when the repayment period begins, your lender can foreclose on your home because the HELOC is secured by your house.

Frequently Asked Questions

Can I change my payment amount during the draw period?

Yes. Most lenders let you pay more than the minimum at any time during the draw period. You can pay interest only, or you can add extra toward principal. Paying down principal reduces what you owe when repayment begins and lowers your future payment. Some lenders also let you switch to a fixed-rate payment plan during the draw period if you want a predictable monthly cost.

What happens if I don't pay anything during the draw period?

If you don't make any payments, interest still accrues and is added to your balance. Your lender can charge late fees and may freeze your line of credit or demand immediate repayment. Unpaid interest also increases the amount you owe when the repayment period begins, making your future payment even higher.

Can my HELOC payment go down if interest rates fall?

Yes. Because most HELOCs have variable rates, your payment decreases when interest rates fall. However, the decrease usually happens only after your lender's rate adjustment date, which can be monthly, quarterly, or annually depending on your agreement. Check your HELOC documents to see when your rate adjusts.

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

A home equity loan has a fixed rate and a fixed monthly payment that never changes. A HELOC has a variable rate, and your payment changes as rates move and as you borrow or pay down the balance. Home equity loans are simpler to budget for; HELOCs offer more flexibility but more payment uncertainty.

Can I pay off my HELOC early without a penalty?

Most HELOCs have no prepayment penalty, meaning you can pay off the entire balance whenever you want without extra fees. However, always check your loan agreement or ask your lender to confirm. Some older HELOCs or those with promotional rates may have restrictions on early payoff.