Go to the Citi login page for Costco cardholders
The Costco Citi Visa account portal is hosted on Citi's website, not Costco's. Open your browser and go to citicards.com. Look for the login section — it's usually at the top of the page. You'll see fields for your username and password.
If you're logging in from a device Citi recognizes, you may go straight to your account dashboard. If it's a new device or browser, Citi will ask you to verify your identity before letting you in — usually through a code sent to your phone or email.
Key Takeaways
- The Costco Citi Visa login happens on citicards.com, not on Costco.com.
- Your username is typically the email address you registered with Citi, though you can also use your card number.
- If you've never logged in before, you'll need to set up your online account first by entering your card details and personal information.
- Citi may send a one-time code to your phone or email to verify your identity on new devices.
- Once logged in, you can view your balance, make payments, track rewards, and read statements.
Set up your account if you're logging in for the first time
If you received your Costco Citi Visa card but have never created an online account, you'll need to register before you can log in. On the citicards.com homepage, look for a link that says "Enroll" or "Register" — the exact wording changes, but it's separate from the login box.
Click that link and enter your card number, the expiration date, and your ZIP code. Citi will then ask for your Social Security number, date of birth, and contact information to verify you're the cardholder. Once verified, you'll create a username and password. Write these down or save them in a password manager — you'll use them every time you log in.
Use your username or card number to sign in
When you're ready to log in, you have two options. You can enter the email address or username you created during registration, or you can enter your Costco Citi Visa card number. Either one works — use whichever you remember more easily.
Type your password in the second field. Passwords are case-sensitive, so make sure Caps Lock is off if you didn't use capital letters when you set it up. If you get an error message, double-check that you're typing it exactly as you created it.
Verify your identity on a new device or browser
The first time you log in from a new phone, tablet, or computer — or from a different browser on the same device — Citi will ask you to verify your identity. This is a security step to make sure someone else isn't trying to access your account.
Citi will send a one-time code to the phone number or email address on file for your account. Check your text messages or email inbox (including spam folders) for a message from Citi. The code is usually six digits and expires after a few minutes. Enter it on the screen where Citi asked for verification, and you'll be logged in.
After you verify, Citi may ask if you want to trust this device for future logins. If you check that box, you won't have to verify every single time you come back — but only do this on devices you own and use alone.
Reset your password if you're locked out
If you forget your password or can't remember your username, click the "Forgot username or password?" link on the login page. Citi will ask you to enter your card number and ZIP code, then send a reset link to your email address.
Open that email and click the link — it usually works for 24 hours. You'll be taken to a page where you can create a new password. Make it something you can remember but that's hard for someone else to guess. Avoid birthdays, names, or straightforward patterns like "123456".
If you don't receive the reset email within a few minutes, check your spam folder. If it's not there, call the number on the back of your Costco Citi Visa card and ask Citi to help you reset your account over the phone.
What you can do once you're logged in
After you've successfully logged in, you'll land on your account dashboard. From there, you can view your current balance, see your available credit, and check your recent transactions. You can also read or view your monthly statements going back several years.
The dashboard also shows your Costco rewards balance — the cash back you've earned from purchases. You can see how much you've accumulated and when it posts to your account. Most Costco Citi Visa rewards post once a year, usually in December, though some special promotions may post on different schedules.
You can make a payment to your card directly from the login portal by selecting "Make a Payment" and entering the amount and payment method. You can also set up automatic payments so your bill is paid on the same day each month.
Troubleshoot common login problems
If you see an error message saying your username or password is incorrect, first make sure you're on citicards.com and not a phishing site. Check the web address in your browser — it should start with "https://" and say "citicards.com". If it says anything else, close the page and start over by typing the address directly into your browser.
If you're certain you're on the real Citi website and your login still doesn't work, try clearing your browser's cache and cookies, then log in again. If that doesn't help, call the customer service number on the back of your card. A representative can verify your identity and help you regain access to your account.
If you're getting locked out after multiple attempts, Citi temporarily freezes the account for security. Wait 15 to 30 minutes and try again, or call customer service to unlock it when ready.
Frequently Asked Questions
Is the Costco Citi Visa login different from other Citi card logins?
No. All Citi credit cards use the same login portal at citicards.com. If you have multiple Citi cards, you log in once with your username and password, and you can switch between your accounts from the dashboard.
Can I log in on the Costco website instead?
No. Costco.com does not host the credit card login. You must go to citicards.com. Costco's website may have a link to the Citi portal, but the actual login happens on Citi's site.
What should I do if I think someone else accessed my account?
Call the number on the back of your card right away. Citi can freeze your account, review recent transactions, and help you dispute any charges you didn't make. Change your password after you've spoken to them.
Can I use the Citi mobile app instead of the website?
Yes. read the "Citi Mobile" app from your phone's app store, then log in with the same username and password you use on citicards.com. The app lets you do everything the website does, including checking your balance, making payments, and viewing rewards.
How often should I change my password?
Citi doesn't require you to change your password on a set schedule, but it's a good idea to change it every few months or if you think someone might know it. You can change your password anytime by logging in, going to "Settings" or "Security", and selecting "Change Password".