Paddy Sullivan, WalletHub Credit Card Analyst
@PaddySully
To activate a Capital One Platinum, call the phone number on the back of your card or go to the Capital One activation website. You can also activate a Capital One Platinum using the Capital One mobile app.
Your new card will be ready to make purchases in just a few moments, no matter which activation method you use. Capital One does not have a certain time limit within which you need to activate your card, but it's best to do it as soon as possible.
How to Activate a Capital One Platinum
- By phone: Call the phone number on the back of your card or the number on the sticker attached to the front of the card. Verify your personal information (e.g., Social Security number, card number, or phone number associated with your application) to activate your Capital One Platinum.
- On the website: Log in to your Capital One account (or create an account if you don’t already have one) and find the activation page. Enter any required security information, including your card's 3-digit security code. Activate your Capital One Platinum as instructed.
- Via the mobile app: Log in to the Capital One mobile app using the same credentials that you’d use to log in online. Tap the credit card activation button, then enter any security information that’s requested on the following page.
If you have any trouble activating your card, Capital One customer service can always help you out. You can give them a call at the phone number on the back of your card.
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