Question: How can I login to Citibank Costco Credit Card?
Answer: You can login to your Costco credit card by clicking on this link and then clicking on “Sign on” on the top right. Costco credit card is managed by Citibank. Once you login, you can manage your Costco credit card. You can make payments, change address, view transactions and much more.
You need to have a Citibank Costco credit card login and password to access your online account. To register your Costco credit card, click here.
Note: Costco switched from American Express to Citibank on June 2016. You can no longer access your Costco American Express account. All balances and statements should have been switched to Citibank.