Sign in online or on our mobile app to activate your debit card and start enjoying all it has to offer. Activating your Capital One credit card online is the most convenient option. To do this, follow these steps: Go to the Capital One site: Visit capitalone.com/activate. Log in to your. Sign in to access all of your Capital One accounts. View account balances, pay bills, transfer money and more.
Sign in to access all of your Capital One accounts. View account balances, pay bills, transfer money and more. Enter your email address below. We will send you a confirmation to continue with your account registration. When you provide your email address, we may use it to send you important.