After you open a new credit card account or renew an existing credit card, you'll receive a physical card in the mail. But before you can start using the new card to make purchases, you'll need to activate it.
Whether you complete your credit card activation over the phone, use your issuer’s website, or activate your new credit card through a mobile app that you download from the app store, you should activate the card right away.
How to Activate a Credit Card
Last Updated: August 6, 2024
6 min read
Next steps
See if you're pre-approved
View all Discover credit cards
See rates, rewards and other info
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