A HELOC payment depends on how much you've borrowed and what interest rate you're paying
A home equity line of credit (HELOC) doesn't have a fixed monthly payment the way a loan does. Instead, your payment changes based on how much you've actually drawn from the credit line and what the current interest rate is. If you have a $30,000 HELOC but have only borrowed $10,000, you pay interest only on that $10,000. If you later borrow another $15,000, your payment goes up.
Most HELOCs have two phases: a draw period (usually 5 to 10 years) when you can borrow and repay as needed, and a repayment period (usually 10 to 20 years) when you can no longer borrow and must pay down the balance. Your monthly payment is lowest during the draw period and rises sharply when the repayment period begins.
The actual dollar amount depends on three things: how much you've borrowed, your interest rate, and whether you're in the draw or repayment phase. A $30,000 HELOC at 8% interest costs roughly $200 per month if you're only paying interest during the draw period. But that same HELOC costs $300 to $400 per month during repayment, when you're paying down principal as well.
Key Takeaways
- Your monthly payment on a HELOC changes whenever you borrow more, pay down the balance, or when interest rates change.
- During the draw period, you typically pay interest only on what you've borrowed, making payments lower than during repayment.
- When the repayment period begins, your payment jumps because you must now pay down the principal balance, not just interest.
- A $30,000 HELOC at 8% costs roughly $200 per month during interest-only draw, but $300 to $400 per month during repayment.
- Your lender sends a statement each month showing your current balance, available credit, and the minimum payment due.
How the draw period affects what you pay each month
During the draw period, most lenders let you pay interest only. This keeps your monthly payment low because you're not reducing the principal. If you've drawn $20,000 of your $30,000 HELOC at 7% interest, your monthly interest-only payment is roughly $117. You can pay more if you want, but you don't have to.
The catch is that interest rates on HELOCs are variable, meaning they move with the market. Your lender ties your rate to a benchmark—usually the prime rate published by the Federal Reserve—and adds a margin on top. When the prime rate rises, so does your HELOC rate, and your payment goes up even if you haven't borrowed any additional money. When rates fall, your payment falls.
During the draw period, you can also make additional draws. If you borrow another $5,000, your monthly payment increases when ready because you're now paying interest on $25,000 instead of $20,000. Some people use this flexibility to cover emergencies or home repairs without taking out a separate loan.
What happens when the draw period ends and repayment begins
When your draw period ends, the HELOC converts to a repayment phase. You can no longer borrow. Instead, you must pay down the entire remaining balance over the repayment period—typically 10 to 20 years, depending on your lender's terms.
This is where payments jump. If you still owe $25,000 and your repayment period is 15 years at 7% interest, your monthly payment rises to roughly $195. You're now paying both interest and principal each month. The payment stays the same each month (assuming your rate doesn't change), and the balance shrinks steadily until it reaches zero.
Some borrowers are surprised by this jump because they've grown used to low interest-only payments. If you borrowed heavily during the draw period and didn't pay down the balance, you could face a payment shock when repayment begins. Planning ahead—paying down principal during the draw period or refinancing before repayment starts—can soften that impact.
How interest rate changes affect your monthly payment
Because HELOC rates are variable, your payment can change even if you don't borrow or pay back anything. If your rate is tied to the prime rate plus 1%, and the prime rate rises from 7% to 8%, your rate jumps to 9%, and your payment increases when ready.
During the draw period, a rate increase of 1% on a $20,000 balance adds roughly $17 to your monthly payment. During repayment, the same rate increase adds more because you're paying interest on a larger portion of each payment. A 1% rate increase on a $25,000 repayment-phase balance adds roughly $20 to $25 per month, depending on how many years remain.
Your lender is required to disclose how often your rate can adjust and whether there are caps on how much it can rise. Some HELOCs have a lifetime cap (for example, the rate can never exceed 12% no matter what happens to the prime rate), while others have annual caps. Read your disclosure documents to understand your rate risk.
Comparing interest-only versus principal-and-interest payments
The difference between paying interest only and paying principal and interest is substantial over time. On a $25,000 HELOC at 7% interest:
| Payment Type | Monthly Payment | Total Paid Over 15 Years |
|---|---|---|
| Interest only (draw period) | $146 | $26,280 (balance still owed at end) |
| Principal and interest (repayment) | $195 | $35,100 (balance paid off) |
Interest-only payments are lower each month, but you're not building equity in your home. At the end of the draw period, you still owe the full $25,000. Principal-and-interest payments are higher, but you're steadily reducing what you owe. By the end of repayment, the debt is gone.
Some borrowers use the draw period to pay down principal voluntarily, even though they're not required to. Paying an extra $50 per month toward principal during the draw period can save thousands in interest over the life of the HELOC and reduce the payment shock when repayment begins.
What your monthly statement shows and how to read it
Your HELOC statement arrives monthly and shows several numbers. The current balance is what you owe. The available credit is how much more you can borrow (the $30,000 limit minus what you've already drawn). The minimum payment due is what the lender requires you to pay that month.
During the draw period, the minimum payment is usually the interest accrued that month. During repayment, it's a fixed amount that covers both interest and principal. You can always pay more than the minimum without penalty, and doing so reduces your balance and the interest you'll pay over time.
Your statement also shows your current interest rate and the date it was last adjusted. If you're in a variable-rate HELOC, watch for rate changes—they're reported on your statement before they take effect. Some statements also show a projection of what your payment will be when the draw period ends, which helps you plan for the jump.
Factors that change your actual monthly payment
Beyond interest rates and how much you've borrowed, several other factors affect what you pay. The length of your draw and repayment periods matters: a longer draw period keeps payments lower for longer, but a shorter repayment period means higher payments when it begins. Your lender's margin—the percentage they add to the prime rate—also varies by lender and your credit score.
Some HELOCs allow you to lock in a fixed rate for part or all of the balance, which protects you from future rate increases. A fixed-rate portion costs slightly more per month than the variable rate, but your payment on that portion never changes. This is useful if you're worried about rising rates or if you're approaching the repayment period and want predictability.
Your credit score and payment history can also affect your rate. If you miss payments or your credit score drops, some lenders can raise your rate or reduce your available credit. Conversely, if your score improves, you might be able to request a lower rate.
Frequently Asked Questions
Can I pay only interest on my HELOC forever?
No. Your lender sets a draw period (usually 5 to 10 years), after which you must enter repayment and begin paying down principal. Some lenders offer longer draw periods, but eventually you will have to repay the balance. Check your disclosure documents for your specific draw and repayment periods.
What happens if I can't afford the payment when repayment begins?
Contact your lender before the payment is due. Some lenders allow you to refinance the HELOC into a traditional home equity loan with a longer repayment period, which lowers the monthly payment. Others may work with you on a temporary payment plan. Ignoring the problem can lead to default and foreclosure.
Does paying extra toward principal during the draw period help?
Yes. Any payment above the minimum goes toward principal and reduces the balance. Paying an extra $50 per month during a 10-year draw period saves thousands in interest and lowers your payment when repayment begins. It also builds home equity faster.
Why did my HELOC payment go up if I didn't borrow more money?
Your interest rate changed. HELOC rates are variable and tied to the prime rate. When the Federal Reserve raises rates, your lender's rate goes up, and so does your monthly payment. Check your statement for the new rate and the date it took effect.
Is a HELOC payment tax deductible?
The interest portion may be deductible if you use the borrowed money to improve your home, but not if you use it for other purposes like paying off credit cards. Consult a tax professional about your specific situation, as tax rules vary by income and how the funds are used.