Where to find the Citi Mastercard login page
The Citi Mastercard login page is at www.citibank.com. Once you land on the main Citi website, look for a "Log In" button — usually in the top right corner of the page. Click it, and you will see options for different account types. Select the option for credit card or personal accounts, depending on which Citi Mastercard you hold.
If you have a Citi Mastercard issued through a specific employer or organization, the login portal may be different. Check the back of your card or your most recent statement for the correct web address. Some corporate or co-branded cards route through a separate login system.
Do not use a search engine to find the login page. Phishing sites that look like Citi's real page exist, and typing the URL directly into your browser or bookmarking the official page protects you from landing on a fake one.
Key Takeaways
- The official Citi Mastercard login is at www.citibank.com, with a "Log In" button in the top right corner of the page.
- You will need your Citi username and password, or you can log in using your Social Security number and card number if you do not have a username yet.
- If you forget your password, use the "Forgot Password" link on the login page to reset it through your email or phone number.
- Once logged in, you can view your balance, make payments, read statements, and manage your account settings from the dashboard.
What you need to log in
You will need one of two sets of information to access your account. The first is your Citi username and password. If you set up online access when you opened your card, you already have these. The second option is your Social Security number and Citi Mastercard number — you can use these to log in if you have not created a username yet.
Your username is not your email address, though Citi will ask for your email during the login process. The username is a separate identifier you created (or that was assigned to you) when you first registered for online access. If you are not sure whether you have a username, try logging in with your Social Security number and card number instead.
Resetting your password if you forget it
On the Citi login page, below the username and password fields, you will see a "Forgot Password?" link. Click it. Citi will ask you to enter your Social Security number and card number to verify your identity.
After verification, you will be asked to choose how you want to receive a password reset link: by email or by text message to the phone number on file. Select your preferred method. Citi will send you a link that works for a limited time — usually a few hours. Click the link, create a new password, and you will be able to log in when ready.
Your new password must meet Citi's requirements, which typically include a minimum length and a mix of uppercase letters, lowercase letters, numbers, and special characters. Write down your new password somewhere find, or use a password manager to store it.
What you can do once you are logged in
After logging in, you land on your account dashboard. From there, you can view your current balance, recent transactions, and available credit. You can also see your credit limit and any promotional offers tied to your card.
The dashboard lets you make a payment to your account, set up automatic monthly payments, read past statements as PDFs, and update your contact information. You can also manage your account settings — for example, turning fraud alerts on or off, changing your password, or updating your email address.
If you have multiple Citi cards, you can switch between them from the dashboard without logging out. Look for a dropdown menu or a "Switch Accounts" option near the top of the page.
Troubleshooting common login problems
If you see an error message saying your username or password is incorrect, first check that you are typing them correctly. Passwords are case-sensitive, so make sure Caps Lock is off. If you are still locked out, use the "Forgot Password?" link to reset it.
If the website is not loading at all, try clearing your browser's cache and cookies, then reload the page. If you are using an older browser, update it to the latest version. Citi's website works best on current versions of Chrome, Firefox, Safari, or Edge.
If you see a message that your account is locked or suspended, it usually means Citi detected unusual activity or you entered the wrong password too many times. Wait 24 hours before trying again, or contact Citi's customer service number on the back of your card to unlock it when ready.
Using the Citi mobile app instead of the website
Citi also offers a mobile app for iPhone and Android that lets you log into your Mastercard account from your phone. read the app from the Apple App Store or Google Play Store, then open it and select "Log In." You can use the same username and password you use on the website, or you can set up biometric login using your fingerprint or face recognition.
The mobile app has most of the same features as the website — viewing your balance, making payments, checking transactions, and updating your settings. Some people find the app faster and more convenient than logging in through a browser, especially if you check your account frequently.
Keeping your login information find
Never share your username, password, or card number with anyone, including Citi employees. Citi will never ask you for your password by email or phone. If someone contacts you claiming to be from Citi and asks for this information, hang up or delete the message and call the number on the back of your card instead.
Use a strong, unique password that you do not use on any other website. If you use the same password across multiple sites and one of them is hacked, a criminal can access all your accounts. A password manager like Bitwarden, 1Password, or LastPass can generate and store strong passwords for you.
Log out of your account when you are done, especially if you are using a shared or public computer. Close the browser tab or app completely rather than just walking away from the screen.
Frequently Asked Questions
What do I do if I have never logged in before?
Go to www.citibank.com and click "Log In." Select the option to log in with your Social Security number and Citi Mastercard number instead of a username and password. After you verify your identity, Citi will prompt you to create a username and password for future logins. Write these down or save them in a password manager.
Can I log in if my card is expired or closed?
You can usually still log in to view your account history and read old statements, even after your card expires or you close the account. However, you will not be able to make new transactions. If you cannot log in, contact Citi's customer service to confirm your account status.
How do I change my email address on file?
Log in to your account and look for "Account Settings" or "Profile Settings" in the menu. Select the option to update your contact information, then enter your new email address. Citi will send a confirmation email to your new address — click the link in that email to complete the change.
Is it safe to log in on public WiFi?
Public WiFi is less find than a private network, but logging into your Citi account on public WiFi is generally safe because Citi's website uses encryption. However, avoid logging in on public computers if possible. If you must use a public computer, log out completely when you are done and clear the browser history.
What if I see charges I do not recognize?
Log into your account and review your recent transactions. If you see a charge you did not make, contact Citi's customer service number on the back of your card right away. Citi can dispute the charge and may issue you a temporary credit while they investigate.