Your monthly payment on a $30,000 HELOC depends on how much you actually borrow and what interest rate your lender offers

A home equity line of credit (HELOC) is not the same as a loan with a fixed monthly payment. You open a credit line for up to $30,000, but you only pay interest on the money you actually draw. If you borrow $15,000 and leave $15,000 unused, you pay interest only on the $15,000. Your monthly payment changes as you borrow more, pay down the balance, or as your interest rate adjusts.

During the draw period (usually 5 to 10 years), most lenders let you pay interest-only, which keeps your monthly payment low. A $30,000 HELOC at 8% interest, if you drew the full amount and paid interest-only, would cost roughly $200 per month. But if rates are 6%, that same balance costs about $150 per month. If you only borrow $10,000, you pay roughly $50 to $67 per month in interest alone.

After the draw period ends, the repayment period begins (usually 10 to 20 years). Now you must pay both principal and interest each month, and your payment rises significantly. A $30,000 balance at 8% over 15 years costs roughly $286 per month. The exact amount depends on your lender's terms, your credit score, your home's equity, and current market rates.

Key Takeaways

  • You only pay interest on money you actually borrow from a HELOC, not on the full credit line amount.
  • During the draw period, interest-only payments on a $30,000 HELOC typically range from $150 to $250 per month, depending on your rate.
  • Once the draw period ends and repayment begins, your monthly payment roughly doubles because you must pay down the principal.
  • Your actual payment depends on three things: how much you borrow, your interest rate, and whether you are in the draw or repayment period.
  • HELOC rates are variable, so your payment can increase if rates rise during the draw period or when your rate adjusts.

How interest-only payments work during the draw period

Most HELOCs offer an interest-only option for the first 5 to 10 years. During this time, you pay only the interest that accrues on your outstanding balance. If you borrow $20,000 at 7% interest, your monthly interest-only payment is about $117. If you borrow $5,000, it drops to about $29 per month.

Interest-only payments are attractive because they are low, but they do not reduce what you owe. After five years of interest-only payments on $20,000, you still owe $20,000. When the draw period ends and repayment begins, your payment jumps because now you must pay principal plus interest, and you have less time to pay it off.

Some lenders require you to start paying principal before the draw period officially ends. Others let you convert to a fixed-rate loan or refinance. Read your HELOC agreement to understand when interest-only ends and what happens next.

What happens when the repayment period begins

When your draw period ends, the HELOC switches to repayment mode. You can no longer borrow new money, and you must pay down the entire balance within the repayment period (typically 10 to 20 years). Your monthly payment now includes both principal and interest.

If you owe $25,000 at the start of a 15-year repayment period and your rate is 8%, your monthly payment is roughly $238. If the repayment period is only 10 years, the same balance costs about $303 per month. Shorter repayment periods mean higher monthly payments because you are paying off the debt faster.

Some borrowers face payment shock at this stage. If you spent five years paying $150 per month in interest-only payments, seeing a bill for $250 or $300 can be a surprise. Plan ahead by understanding your HELOC terms before you sign.

How interest rates affect your payment

HELOC rates are variable, meaning they change over time. Most are tied to the prime rate, which moves with Federal Reserve decisions. When the prime rate rises, your HELOC rate rises, and your monthly payment increases—even if you have not borrowed any additional money.

If you borrowed $20,000 at 6% and your rate jumps to 8%, your interest-only payment rises from $100 to $133 per month. During repayment, the impact is even larger. A $20,000 balance at 6% over 15 years costs $178 per month; at 8%, it costs $191 per month.

Some HELOCs offer a rate cap or a fixed-rate conversion option. A cap limits how high your rate can go. A conversion lets you lock in a fixed rate for part or all of your balance. These protections cost more upfront but shield you from payment increases if rates rise sharply.

Comparing a HELOC to a home equity loan

A home equity loan is different from a HELOC. With a home equity loan, you borrow a lump sum and repay it in fixed monthly payments over a set term (usually 5 to 15 years). There is no draw period, no variable rate option, and no payment surprises from rate changes.

A $30,000 home equity loan at 8% over 10 years costs about $366 per month. Over 15 years, it costs about $286 per month. These payments never change. You know exactly what you owe each month from day one.

A HELOC is more flexible if you need money over time or want lower payments during the draw period. A home equity loan is simpler if you want a fixed payment and do not want to worry about rate changes. Choose based on whether you value flexibility or certainty.

Factors that determine your actual HELOC rate

Your lender will not quote you a rate until they pull your credit report, verify your income, and assess your home's value. Rates vary by lender, by your credit score, by the amount you borrow, and by current market conditions. A borrower with a 750 credit score may get 6.5%, while a borrower with a 650 score might pay 8.5% for the same HELOC.

Your home's equity also matters. If your home is worth $400,000 and you owe $300,000, you have $100,000 in equity. Most lenders let you borrow 80% to 90% of that equity, so a $30,000 HELOC is well within reach. If your equity is lower, you may not may have access to for the full amount, or you may face a higher rate.

The size of the credit line affects the rate too. A $50,000 HELOC might carry a lower rate than a $10,000 one because the lender's cost to service a larger account is spread over more borrowed money. Shop around with at least three lenders to compare rates and terms.

How to estimate your payment before you apply

Use an online HELOC calculator to model different scenarios. Enter the amount you plan to borrow, an estimated interest rate (ask your lender for a range), and the draw and repayment periods. Most calculators show both interest-only and principal-plus-interest payments.

Start with a conservative rate estimate. If current HELOC rates are around 7%, assume 8% or 9% to see how a rate increase would affect you. Model both the draw period and the repayment period so you understand the full cost over time.

Call your lender and ask for a Loan Estimate. This document shows the interest rate, the draw and repayment periods, any rate caps, and an example of what your payment would be at different borrowing levels. It is free and takes a few minutes. Use it to compare offers from different lenders side by side.

Frequently Asked Questions

Can I pay off a HELOC early without a penalty?

Most HELOCs have no prepayment penalty, so you can pay off the balance whenever you want. Some lenders charge a fee if you close the account within a certain period (often three to five years), so read your agreement. Paying early saves you interest and reduces your payment in the repayment period.

What if I only borrow part of the $30,000 credit line?

You pay interest only on what you borrow. If you open a $30,000 HELOC but draw only $10,000, you pay interest on $10,000. The remaining $20,000 sits unused and costs you nothing until you borrow it. This flexibility is one reason people choose HELOCs over fixed home equity loans.

Do I have to make a minimum payment during the draw period?

Yes. Most lenders require at least an interest-only payment each month, even if you are not borrowing more. Some require a small principal payment too. Check your agreement for the minimum payment rule. If you miss a payment, your rate may increase and your credit score may drop.

What happens if I cannot afford the payment when repayment begins?

Contact your lender before you miss a payment. Some lenders offer a conversion to a fixed-rate loan, a longer repayment period, or a temporary payment reduction. Missing payments damages your credit and can lead to foreclosure because a HELOC is secured by your home. Act early if you see trouble ahead.

Is a HELOC payment tax-deductible?

Interest on a HELOC may be tax-deductible if you use the borrowed money to improve your home. Interest on money used for other purposes (debt consolidation, a car, a vacation) is generally not deductible. Consult a tax professional about your specific situation, as rules vary.