A HELOC will lower your credit score when you open it, but the damage is temporary and usually modest

Opening a HELOC triggers a hard inquiry into your credit report, which typically drops your score by a few points for a few months. The lender also reports the new account to the credit bureaus, which lowers your average account age and increases your total available credit. The bigger hit comes if you actually borrow against the line — each withdrawal is treated like a new debt, and carrying a balance raises your credit utilization ratio, which affects roughly 30 percent of your score. Most people see a 10 to 50 point dip initially, depending on their starting score and how much they borrow.

The score recovers over time if you make on-time payments and keep your balance low relative to your credit limit. A HELOC that sits unused or nearly unused will eventually help your score by adding a long-standing account with a perfect payment history. The real damage happens when you max out the line or miss payments — that is when a HELOC becomes a serious liability to your credit profile.

Key Takeaways

  • A hard inquiry when you open a HELOC typically lowers your score by a few points, but this effect fades within a few months.
  • Borrowing against the HELOC raises your credit utilization ratio, which can drop your score by 10 to 50 points depending on how much you borrow.
  • Making on-time payments on your HELOC helps rebuild your score over time and eventually adds to it as the account ages.
  • Maxing out the line or missing payments will damage your score far more than opening the account does.
  • The credit impact of a HELOC depends entirely on how you use it — opening one and not borrowing has minimal lasting effect.

What happens to your score the moment you open a HELOC

When you submit a HELOC application, the lender runs a hard inquiry on your credit report. This inquiry shows up on your credit file and typically costs you 5 to 10 points. The effect is temporary — most scoring models stop counting it after three to six months, and it disappears from your report entirely after two years.

At the same time, the lender reports the new account to Equifax, Experian, and TransUnion. This new account lowers your average account age, which is part of your credit score calculation. If you have mostly older accounts, the impact is small. If you have mostly newer accounts, the new HELOC can drop your score by another 5 to 15 points. This effect also fades as the HELOC ages.

The opening itself does not trigger the largest credit hit — that comes only if you actually draw money from the line.

How borrowing against the HELOC changes your credit utilization

Credit utilization is the percentage of your available credit that you are currently using. If you have a HELOC with a $100,000 limit and you borrow $30,000, your utilization on that account is 30 percent. Credit utilization makes up roughly 30 percent of your credit score, so it is one of the largest factors after payment history.

Most credit scoring models treat a HELOC like a credit card — they look at how much you have borrowed versus how much you can borrow. Borrowing $10,000 against a $100,000 line has a smaller impact than borrowing $10,000 against a $20,000 line, because the utilization ratio is different. The higher your utilization across all your accounts, the more your score drops. Many people see a 20 to 50 point decline when they first draw on a HELOC, especially if they already carry balances on credit cards.

This is where the real damage happens. If you open a HELOC and never touch it, the credit impact is minimal and temporary. If you open a HELOC and immediately borrow $50,000, your score will take a significant hit that lasts until you pay the balance down.

How on-time payments rebuild your score over time

Payment history is the single largest factor in your credit score — it accounts for about 35 percent. Every on-time payment on your HELOC gets reported to the credit bureaus and adds to your payment history. If you have missed payments on other accounts, a HELOC with a perfect payment record can help offset that damage over time.

The benefit compounds as the account ages. A HELOC that is five years old with 60 consecutive on-time payments is worth more to your score than a brand-new HELOC, even if both have zero balance. Lenders see a long payment history as proof that you manage debt responsibly. This is why people with older credit accounts tend to have higher scores — the accounts themselves become an asset.

If you are rebuilding credit after a setback, a HELOC can be a tool for that, but only if you treat it like a loan you intend to repay, not like assistance programs. Missing even one payment will erase months of benefit and can drop your score by 100 points or more.

What happens if you max out the HELOC or miss a payment

Maxing out a HELOC — borrowing the full amount available — pushes your credit utilization to 100 percent on that account. This is one of the worst signals you can send to a credit scoring model. Your score will drop significantly, and the damage will persist until you pay the balance down below 30 percent of the limit.

Missing a payment is far worse. A single missed payment stays on your credit report for seven years and can drop your score by 100 to 150 points depending on your starting score and payment history. A HELOC is secured by your home, so a missed payment also puts your house at risk — the lender can foreclose if you fall far enough behind. The credit damage is secondary to the legal risk.

If you are considering a HELOC, the credit score impact should not be your main concern. The real question is whether you can afford to borrow and repay. If you cannot, the credit damage is the least of your problems.

How a HELOC affects your credit mix and long-term score

Credit scoring models reward you for having different types of credit — credit cards, installment loans, mortgages, and lines of credit. This is called credit mix, and it accounts for about 10 percent of your score. A HELOC is a revolving line of credit, similar to a credit card. If you have only credit cards and no installment loans or lines of credit, adding a HELOC diversifies your credit profile and can help your score in the long run.

The long-term effect depends on how you use it. If you open a HELOC, borrow responsibly, and make on-time payments for years, it becomes a positive part of your credit history. The initial dip from the hard inquiry and new account fades, and you are left with an older account that demonstrates you can manage different types of credit. If you open a HELOC and immediately max it out or default, it becomes a permanent liability.

Frequently Asked Questions

Will a HELOC hurt my credit score if I don't borrow anything?

Opening a HELOC without borrowing will lower your score by a few points due to the hard inquiry and new account, but the effect is temporary and usually fades within a few months. The score impact is minimal compared to actually borrowing against the line. An unused HELOC can eventually help your score by adding an older account with a perfect payment history.

How long does it take for my credit score to recover after opening a HELOC?

The hard inquiry effect typically fades within three to six months. The new account age effect takes longer — usually 12 to 24 months — as the account ages and your average account age recovers. If you borrowed against the HELOC, recovery depends on how quickly you pay the balance down. Paying down utilization to below 30 percent usually improves your score within one or two billing cycles.

Can a HELOC help my credit score?

Yes, but only over time and only if you use it responsibly. A HELOC with a perfect payment history that ages for several years becomes an asset to your credit profile. It also diversifies your credit mix if you have mostly credit cards. The initial score dip is temporary, but the long-term benefit requires consistent on-time payments and low utilization.

What is the difference between a HELOC and a credit card in terms of credit impact?

Both are revolving credit accounts and both affect your credit utilization ratio the same way. The main difference is that a HELOC is secured by your home, so missing payments puts your house at risk, while missing credit card payments only damages your credit. A HELOC may also report differently to the bureaus depending on the lender, but the scoring impact is similar.

Should I worry about my credit score when deciding whether to open a HELOC?

The credit score impact should be a minor consideration compared to whether you can afford to borrow and repay. The initial dip is temporary and usually modest. The real risk is borrowing more than you can repay or missing payments, which damages both your credit and your ability to keep your home. If you need the money and can afford the payments, the credit score effect is worth it.