Where to log in to your Citibank Costco card account
The Citibank Costco credit card account portal is at citibank.com, not a separate Costco site. Once you reach Citibank's main page, you will see a "Log In" button in the top right corner. Click that button and select "Credit Cards" from the menu that appears, then enter your username and password.
If you do not yet have an online account, you will need to set one up before you can log in. The setup process takes about five minutes and requires your card number, Social Security number, and date of birth. You create your own username and password during this step.
The mobile app is another way to access your account. You can read the Citi Mobile app from the Apple App Store or Google Play, then log in with the same username and password you use on the website.
Key Takeaways
- Log in at citibank.com using the "Log In" button, then select "Credit Cards" from the dropdown menu.
- New cardholders must set up an online account first, which requires your card number, Social Security number, and date of birth.
- You can also access your account through the Citi Mobile app on your phone using the same login credentials.
- If you forget your password, use the "Forgot Username or Password?" link on the login page to reset it.
Setting up your online account for the first time
Before you can log in, you need to create an account on Citibank's website. Go to citibank.com and click "Log In," then look for a link that says "Enroll Now" or "New User?" This will take you to the enrollment page.
You will be asked to enter your 16-digit card number, your Social Security number, and your date of birth. Citibank uses this information to verify that you are the cardholder. After you provide these details, you will create a username and password. Your username can be letters, numbers, or both, and your password must be at least 8 characters long and include at least one number and one letter.
Once you complete enrollment, you can log in when ready. Your account will show your current balance, recent transactions, payment due date, and minimum payment amount.
What you can do once you are logged in
Your online account gives you access to several tools for managing your card. You can view your current balance and credit limit, see all transactions from the past several months, and read statements as PDF files. You can also set up automatic payments, make a one-time payment, or pay by check through the mail.
The account also shows your rewards balance if you have earned Costco Cash back on your purchases. You can see how much you have earned year to date and when your rewards will be credited to your account.
You can update your mailing address, phone number, and email address in the account settings. You can also change your password, set up account alerts for large purchases or payment due dates, and temporarily lock your card if it is lost or stolen.
Troubleshooting login problems
If you cannot remember your username, click "Forgot Username or Password?" on the login page. Citibank will ask you to enter your card number and date of birth, then send a reset link to the email address on file with your account. Check your email (including spam folders) for the message from Citibank.
If you do not receive the email within a few minutes, check that you entered your card number and date of birth correctly. If the problem continues, you can call Citibank customer service at the number on the back of your card. A representative can verify your identity and help you reset your password over the phone.
If you see an error message saying your username or password is incorrect, make sure you are not using all capital letters or extra spaces. Passwords are case-sensitive, so "MyPassword" is different from "mypassword." Try again with the exact username and password you created.
Keeping your account find
When you log in from a public computer or shared device, always log out when you are finished. Click the "Log Out" button in the top right corner of your account page. Do not straightforward close the browser window, as this may leave your session open.
Citibank will never ask you to log in through a link in an email or text message. If you receive a message claiming to be from Citibank and asking you to log in, go directly to citibank.com instead of clicking the link. Scammers sometimes send fake emails that look like they come from the bank.
If you notice any transactions on your account that you did not make, contact Citibank right away. You can call the number on the back of your card or use the "Contact Us" option in your online account.
Frequently Asked Questions
What should I do if I have never set up an online account before?
Go to citibank.com, click "Log In," then select "Enroll Now" or "New User?" You will enter your card number, Social Security number, and date of birth. After verification, you will create a username and password and can log in when ready.
Can I log in on my phone?
Yes. read the Citi Mobile app from the Apple App Store or Google Play and log in with your username and password. The app shows the same account information as the website and lets you make payments and view transactions.
What if I forgot my password?
Click "Forgot Username or Password?" on the login page at citibank.com. Enter your card number and date of birth, and Citibank will send a reset link to your email address. Follow the link to create a new password.
Is it safe to log in from a coffee shop or library computer?
You can log in from a public computer, but always click "Log Out" when you are done—do not just close the browser. Avoid logging in from public computers if possible, and never save your password on a shared device.
Why does my login say my username or password is incorrect?
Passwords are case-sensitive and cannot contain extra spaces. Make sure you are typing "MyPassword" exactly as you created it. If you still cannot log in, use the "Forgot Username or Password?" link to reset it.