The Costco Visa login page is at citibank.com, not on Costco's website
Your Costco Visa card is issued by Citibank, so you log in through Citibank's portal, not through Costco.com. Go to citibank.com, select "Credit Cards" from the main menu, and look for the "Log In" button. You will enter your card number and password there — the same credentials you set up when you first activated your card.
Costco's website does not host your card account. If you try to log in through Costco, you will be redirected to Citibank. This separation is standard: Costco handles your membership; Citibank handles your card account, payments, and statements.
Key Takeaways
- Log in at citibank.com under the Credit Cards section, not at Costco.com or any Costco portal.
- You will need your Costco Visa card number and the password you created when you first activated the card.
- Once logged in, you can view your balance, make payments, read statements, and manage your account settings.
- If you forgot your password, use the "Forgot Password" link on the Citibank login page to reset it by email or phone.
- You can also call Citibank's customer service number on the back of your card to access your account by phone.
What you need to log in
You will need two pieces of information: your Costco Visa card number (the 16-digit number on the front of your card) and your password. The password is the one you created when you first activated your card online or by phone.
If you have never set up an online account before, you will need to register first. On the Citibank login page, look for a "Register" or "New User" link. You will provide your card number, Social Security number, and date of birth to verify your identity, then create a username and password.
Step-by-step login process
Go to citibank.com in your web browser. At the top of the page, find the navigation menu and select "Credit Cards." Look for the "Log In" button — it is usually near the top right of the page or in the main menu.
Enter your card number in the first field. This is the 16-digit number printed on the front of your Costco Visa card. In the second field, enter your password. Click "Log In." You will be taken to your account dashboard, where you can see your current balance, recent transactions, and payment options.
If the page asks for additional verification, you may be prompted to enter a code sent to your phone or email. This is a security step. Enter the code and proceed to your account.
If you forgot your password
On the Citibank login page, click the "Forgot Password?" link below the login fields. You will be asked to enter your card number. Citibank will then send a password reset link to the email address or phone number on file with your account.
Follow the link in the email or text message. You will be taken to a page where you can create a new password. Make sure your new password is at least 8 characters long and includes a mix of letters, numbers, and symbols — Citibank requires this for security.
If you do not receive the reset email or text within a few minutes, check your spam folder. If you still cannot reset your password online, call the customer service number on the back of your Costco Visa card and a representative can help you reset it over the phone.
What you can do once you are logged in
After logging in, you can view your account balance, see all transactions from the past several months, and read or print statements. You can also set up automatic payments, make a one-time payment, update your contact information, and change your password.
The account dashboard also shows your credit limit, available credit, and any rewards or cash back you have earned. If you have the Costco Visa Signature card, you can view your rewards balance and see how much cash back you have accumulated.
Logging in on your phone or tablet
You can log in on a mobile device by visiting citibank.com in your phone's web browser, or by downloading the Citibank mobile app from the Apple App Store or Google Play Store. The login process is the same: enter your card number and password.
The mobile app offers the same features as the website — checking your balance, making payments, viewing transactions, and updating your account. Many people find the app faster for quick balance checks or payments while away from home.
Frequently Asked Questions
Why does Costco Visa log in through Citibank instead of Costco's website?
Citibank is the bank that issues and manages your Costco Visa card. Costco handles your membership account separately. The two are linked — your card works at Costco — but they are managed by different companies, so they have different login portals.
Can I log in with my Costco membership number instead of my card number?
No. Your Citibank account is tied to your card number, not your membership number. You must use the 16-digit Costco Visa card number to log in. Your membership number is separate and used only for your Costco warehouse account.
What should I do if I see an error message when I try to log in?
First, check that you are on citibank.com and not a phishing site. Make sure you have entered your card number and password correctly — passwords are case-sensitive. If you still get an error, try clearing your browser's cache and cookies, or use a different browser. If the problem continues, call the number on the back of your card.
Is it safe to log in to my Costco Visa account on a public Wi-Fi network?
It is safer to use a private network. If you must use public Wi-Fi, avoid making payments or changing sensitive information like your password. For security-sensitive tasks, wait until you are on a home or work network, or use your phone's cellular data instead of Wi-Fi.
Can I set up two-factor authentication for my Costco Visa account?
Citibank offers security options including text message or email verification when you log in from a new device. Once you are logged in, go to your account settings or security section to see what options are available and enable them if you wish.