A home equity line of credit has two phases that behave nothing alike, and most of the confusion people have about HELOCs comes down to not realizing which phase they’re asking about. The draw period is the part everyone pictures when they hear “line of credit”: you borrow what you need, when you need it, up to a limit. The repayment period, which comes after, is where the bill actually shows up. Understanding the gap between the two is most of what you need to know before applying.
A HELOC works like a credit card secured by your house. A lender approves you for a maximum credit line based on your home equity, and instead of handing you a lump sum, they let you draw against that line as you go. You might pull $8,000 for a roof repair in March and another $3,000 in July for something else, and you only owe interest on the amount you’ve actually drawn, not the full limit.
What happens during the draw period?
The draw period is typically the first several years of the HELOC, and the exact length varies by lender, so it’s worth confirming before you sign anything. During this stretch you can borrow, repay, and borrow again, much like a credit card. Many HELOCs let you access funds with a card, checks, or an online transfer tied to the account.
Payments during the draw period are usually interest-only, calculated on whatever balance you’re carrying that month. If you haven’t drawn anything, you may owe nothing. If you’ve drawn $20,000, you’re paying interest on $20,000, not on the full line. This is the part people find appealing and the part that quietly causes problems later, because interest-only payments can feel almost free in the moment.
Most HELOCs carry a variable rate tied to an index, which means the interest-only payment itself can move up or down during the draw period even if you never touch the principal. A rate increase doesn’t just cost more per dollar borrowed, it raises the minimum payment on whatever you already owe.
What happens when the draw period ends?
This is the part that catches people off guard. Once the draw period ends, you can no longer pull new funds, and the loan moves into the repayment period. Whatever balance you’re carrying at that point gets amortized, meaning you now owe principal and interest, spread over the remaining term.
The payment jump from interest-only to principal-and-interest can be significant, sometimes doubling or more, depending on how much you drew and how long the repayment term is. Someone who spent years making a $150 interest-only payment on a $25,000 balance might suddenly owe several times that once principal is added to the math. This isn’t a penalty or a fee, it’s just the loan doing what it was always going to do. But it’s the single most common surprise with HELOCs, and it’s worth running the numbers on your actual balance before the draw period runs out, not after.
Draw period versus repayment period, side by side
| Draw period | Repayment period |
|---|---|
| You can borrow and re-borrow up to your limit | No new draws allowed |
| Payments are usually interest-only | Payments include principal and interest |
| Monthly payment can be low if balance is low | Monthly payment reflects full amortization |
| Length set by the lender, often several years | Also set by the lender, commonly a decade or more |
Can you pay down principal during the draw period?
Yes, and in most cases it’s a good idea if you can manage it. Nothing stops you from paying more than the interest-only minimum during the draw period, and every extra dollar toward principal is a dollar you won’t owe interest on later, and a smaller balance waiting for you when repayment begins. People who treat the draw period purely as a low-payment window are often the ones hit hardest by the transition.
What’s actually at risk with a HELOC?
It’s worth saying plainly: a HELOC is secured by your home, the same as your first mortgage. That’s why the rates are usually lower than an unsecured personal loan or a credit card, but it also means the lender has a legal claim against the property if payments stop. Missing payments on a HELOC can put your home at risk of foreclosure, not just your credit score. This is a different kind of debt than a personal loan or a credit card balance, and it’s worth treating the decision to open one with that in mind, especially if the plan is to carry a balance for years.
Is a HELOC the right fit?
HELOCs tend to make the most sense for ongoing or uncertain expenses, home renovations that happen in phases, tuition paid over several years, or a financial cushion you hope not to use but want available. If you need one lump sum for one known expense, a home equity loan or a personal loan with a fixed payment from day one might be simpler to plan around, since you won’t face the draw-to-repayment jump at all.
Terms, draw period length, rates, and credit line limits vary a fair amount between lenders, so it’s worth comparing more than one before deciding. You can see what providers in our network might offer by filling out the HELOC application, which takes about three minutes and won’t affect your credit score to just look.
