The Costco Credit Card and Your Credit Score
The Costco Anywhere Visa Card (issued by Citi) will affect your credit score in the same ways any credit card does: a hard inquiry when you open it, a new account that temporarily lowers your score, and then ongoing activity that can help or hurt depending on how you use it. The card itself has no special impact — what matters is whether you pay on time and keep your balance low relative to your credit limit.
If you already have a Costco membership and use the card responsibly, it can be a straightforward way to build credit while earning cash back on purchases you are already making. If you are opening it primarily to build credit from scratch, understand that the initial dip is normal and temporary, and that the real benefit comes over months and years of on-time payments.
Key Takeaways
- Opening the Costco card triggers a hard inquiry that typically lowers your score by a few points for a few months.
- A new account lowers your average account age, which can drop your score by 10 to 15 points initially, but this effect fades as the account ages.
- Paying your full balance on time every month helps your payment history, which is the largest factor in your credit score.
- Keeping your balance well below your credit limit (ideally under 30 percent) shows lenders you can manage credit responsibly.
- The card offers 2 percent cash back on gas and dining and 1 percent on most other purchases, which can offset the initial score dip if you use it regularly.
What Happens to Your Score When You Open the Card
When you submit an process for the Costco Anywhere Visa Card, Citi runs a hard inquiry on your credit report. This inquiry is visible to other lenders and typically causes a small, temporary drop — usually 5 to 10 points. The effect peaks when ready and fades over a few months as the inquiry ages.
At the same time, the new account itself lowers your score because it reduces your average account age. If you have had credit for five years and open a brand-new card, your average age drops when ready. This can cause a dip of 10 to 15 points. This effect is also temporary: as the Costco card ages, your average account age rises again, and this penalty shrinks.
The total initial impact is usually 15 to 25 points, depending on your existing credit profile. If your score is already low, the percentage drop looks larger, but the absolute damage is the same. If your score is high, you have more cushion to absorb it.
How Your Payment Behavior Rebuilds Your Score
Payment history is the single largest factor in your credit score — it accounts for about 35 percent of the calculation. Every on-time payment on the Costco card reports to the three credit bureaus (Equifax, Experian, and TransUnion) and adds to a positive track record. After three to six months of on-time payments, most people see their score recover past the initial dip and begin climbing.
Missing even one payment can erase months of progress. A payment 30 days late stays on your report for seven years and causes a much larger score drop than the initial hard inquiry. If you open the Costco card, set up automatic payments for at least the minimum due, or set a phone reminder for the due date. The card's due date is listed on your statement and in your online account.
Paying the full balance each month is ideal, but not required for credit score purposes. Paying more than the minimum is what matters — it shows you are managing the debt, not just making token payments.
Credit Utilization and the Costco Card
Credit utilization — the percentage of your available credit that you are using — accounts for about 30 percent of your credit score. If the Costco card has a $5,000 limit and you carry a $2,000 balance, your utilization on that card is 40 percent. Utilization above 30 percent starts to hurt your score; above 50 percent hurts more.
The good news is that utilization is calculated fresh each month based on your statement balance, not your payment history. If you pay down your balance before your statement closes, your reported utilization drops when ready. You do not have to wait for the payment to post. Many people use this strategy: they charge purchases throughout the month, then pay down the balance a few days before the statement closing date, so the statement shows a low balance even though they used the card actively.
If you are opening the Costco card to build credit, keep your balance under 10 percent of the limit if possible. This shows lenders you are not dependent on credit and can manage a large available balance responsibly.
When the Costco Card Helps Your Score Most
The Costco card helps your score most if you already have some credit history and are adding it to a mix of different account types. Credit scoring models reward credit mix — having both revolving credit (credit cards) and installment credit (car loans, personal loans) — because it shows you can manage different kinds of borrowing. If you have only one credit card, adding a second one does not help as much as if you have none.
The card also helps if you use it regularly and pay it off. A card that sits unused reports no activity, which means no new positive payment history. A card that you charge to and pay off monthly builds a strong record of responsible use. The 2 percent cash back on gas and dining makes this easier — you are earning money back on spending you would do anyway, which makes the discipline of paying it off feel less like a sacrifice.
The card helps least if you are trying to build credit from zero. A single new card with a small limit will have a modest effect on your score. If you have no credit history, you may want to start with a secured card (one backed by a cash deposit) or become an authorized user on someone else's established card before opening the Costco card.
Comparing the Costco Card to Other Credit-Building Options
If your goal is to build credit, the Costco card is one option among several. A secured credit card (like the Capital One Secured Mastercard or the Discover Secured Card) requires a cash deposit as collateral and is designed specifically for people rebuilding credit. These cards report to all three bureaus and have lower approval rates, but they come with higher fees and lower cash back rewards.
Becoming an authorized user on someone else's credit card account is faster but requires trust and cooperation. You get added to their account and can use their card, but they remain responsible for the bill. If they have a long payment history and low balance, their positive record can boost your score within 30 to 45 days — much faster than opening your own card. The downside is that if they miss a payment, it damages your score too.
A credit builder loan (offered by credit unions and some online lenders) is a small installment loan designed to build credit. You borrow $500 to $1,000, the lender holds the money in a savings account, and you make monthly payments to yourself. It costs a small fee but guarantees approval and builds both payment history and credit mix. It does not offer cash back, but it is faster and more predictable than a credit card if you are starting from very low credit.
What to Avoid With the Costco Card
Do not open the Costco card if you do not have a Costco membership or do not plan to use it. The card requires a membership to use, and the membership fee (currently $60 for Gold Star or $120 for Executive) is separate from the card fee (the card itself is free). If you are not shopping at Costco regularly, you are paying for a membership and a card you do not need, which defeats the purpose of building credit responsibly.
Do not open the card hoping to when ready increase your credit limit or open other cards right after. Multiple hard inquiries in a short time signal to lenders that you are desperate for credit, which lowers your score further. Space new credit applications at least three to six months apart.
Do not treat the card as a way to spend money you do not have. The cash back is a bonus, not a reason to carry a balance. Carrying a $2,000 balance to earn $20 in cash back costs you far more in interest charges and score damage than the reward is worth.
Frequently Asked Questions
How long does the hard inquiry stay on my credit report?
Hard inquiries stay visible for two years but stop affecting your score after about three to six months. After that time, lenders can still see it happened, but the scoring impact is gone. Multiple inquiries within 14 to 45 days (depending on the scoring model) count as a single inquiry, so shopping around for a card in a short window does less damage than spacing applications out.
Will the Costco card hurt my score if I already have other credit cards?
Yes, but less than if you have no cards. The hard inquiry and new account will still cause a temporary dip of 10 to 20 points. However, adding a card to an existing mix shows you can manage multiple accounts, which helps your score recover faster. If you already have three or more cards in good standing, opening a fourth has minimal long-term impact.
Can I use the Costco card outside of Costco?
Yes. The Costco Anywhere Visa Card is a regular Visa and works anywhere Visa is accepted. You earn 1 percent cash back on most purchases outside Costco and 2 percent on gas and dining everywhere. You do not need to be at Costco to use it, but you do need an active membership to hold the card.
What is the credit limit for the Costco card?
Citi does not publish a standard credit limit. Your limit depends on your credit score, income, and credit history. Most people report limits between $1,000 and $5,000 when approved. You can request a limit increase after six months of on-time payments, and Citi may grant it without a hard inquiry.
Does paying off my Costco card balance in full hurt my score?
No. Paying in full is ideal for your score. A $0 balance shows perfect utilization (0 percent) and demonstrates you are not carrying debt. Some people worry that paying in full means the card does not help their score, but that is false — the on-time payment still reports and counts toward your payment history, which is what matters most.