How to Activate Your Capital One Card Online (2025 Guide)

Activate Your Capital One Card Online

Follow this verified step-by-step guide to activate your Capital One credit or debit card online at the official activation portal.

Step-by-Step: How to Activate Your Capital One Card

  1. Have your Capital One card ready along with your personal info (e.g., SSN, account number).
  2. Visit capitalone.com/activate in your browser.
  3. Sign in with your Capital One account—or create one if you're new.
  4. Enter your card number, expiration date, and security code as prompted.
  5. Verify your identity as requested.
  6. Submit the activation form. You’ll get confirmation once your card is active.

You can also activate via the Capital One mobile app or by calling the number on the back of your card.

This page is for informational purposes only and is not affiliated with Capital One Financial Corporation.
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