Login to Citi Commercial Cards for secure access to manage your commercial card accounts and transactions. Access Citibank online to manage accounts, view balances, transfer funds, pay bills, and explore banking solutions securely. Citi is a leading global bank for institutions with cross-border needs, a global provider in wealth management and a U.S. personal bank. Citibank offers multiple banking services that help you find the right credit cards, open a bank account for checking, & savings, or apply for mortgage & personal loans. Sign on and manage your credit card account. Don't have an account? Apply online today. Sign in to Citi to manage your account and access various services. Citibank.com provides information about and access to accounts and financial services provided by Citibank, N.A. and its affiliates in the United States and its territories. Citibank, N.A. (stylized as citibank; N.A. stands for National Association ) is the primary U.S. banking subsidiary of Citigroup, a financial services multinational corporation. [2] Sign in to access your Citibank accounts and manage your finances online.