How to sign in capitalone.com/activate

If you choose this option, you’ll need a Capital One online account first. If you don’t have one, sign up using your personal details such as Social Security number, bank account number and date of birth. Once you have online access, here’s how to activate:


  1. Go to the Capitalone.com/activate website.

  2. Log in with your username and password.

  3. Find your credit card.

  4. Use the last three-digit security code on the back of your card to activate it.

Steps to enroll and Activate capitalone.com/activate account


  1. Now, please click on the “Sign In & Activate” button, if you already have an account with them. If not, then please click on the “Enroll & Activate” button.

  2. If you press on the “Enroll & Activate” button, you have to complete the registration process on this page, including giving your necessary personal details and selecting a username and password.

  3. Once done, you will be redirected to the Login page.

  4. Then, please enter your new username and password to sign in your account

  5. Once signed in, locate and please click on the capitalone.com/activate card button to continue.

  6. Now, on the activation form. Enter the 3-digit CVV code from the back of your Capital One card and click on “activate the card” button to activate your card successfully.

Capital One Card Activation Requirements

  1. Capital One credit card account number

  2. Taxpayer Identification Number (TIN)

  3. Your Social Security Number (SSN)

  4. A valid email address

  5. 3-digit security code from the back of your credit card