Learn how to activate your new or replacement Capital One credit card. When you receive a new or replacement credit card, you’ll need to activate it by confirming the 3-digit security code on the back.

Mar 9, 2025 · You can activate your Capital One credit card by calling Capital One or using the Capital One website or mobile app. Either option will activate your card the same way.

Learn the fastest ways to activate your Capital One credit or debit card—on the web, in the mobile app, or by phone—plus tips if activation isn’t working.

Whether you’re a new cardholder or need to activate a replacement card, this video shows you how to activate your card online, through the app, or over the phone.

Aug 18, 2025 · You can activate your Capital One credit card by calling Capital One customer service at 1-800-227-4825 or the number on the sticker on your card. You can also activate your credit card on …

Jul 29, 2025 · You can easily activate a Capital One credit card online or through the Capital One Mobile app. Be prepared to verify your identity and your new card information when activating a credit card. …

How do I activate my Capital One debit card? Look for a button to activate your card near the debit card tracker. Select “Activate card” and follow the steps shown. You may be asked to set a PIN to …

Find fast answers in the Capital One Help Center. Search by keywords or browse support topics like activating your card or making a payment.

AirKey is a proprietary technology developed by Capital One that turns AirKey-enabled credit and debit cards into a tap-based verification method that can help prevent fraud. With the tap of an AirKey …

Activate your new Capital One debit card on the Discover network! Learn what stays the same and how to prepare for a seamless switch.