You can buy or sell cryptocurrency with a credit or debit card if your card supports "3D Secure." You can purchase cryptocurrency instantly without waiting for a bank transfer to complete.
To determine if your card supports 3D Secure, you can contact your credit/debit card provider directly or simply try adding it to your Coinbase account. You will get an error message if your card does not support 3D Secure. Some banks will require various security steps to authorize a purchase using 3D Secure. Some of the methods you may see will be a text message, a bank provided security card, or security questions.
The following steps will get you started:
When signed in to your account, go to the Payment methods page and select Link New Account
Select Debit/Credit Card
Enter your card information (the address must match the billing address for the card)
If needed, add a billing address for the card
You should now see a window that says Credit/ Debit Card Added and a Trade button
You can now buy or sell cryptocurrency from the Buy/Sell page anytime.
The following steps will walk you through the 3DS purchase process:
Go to the Buy/Sell page
Enter the desired amount
Select the card from the payment methods drop down menu
Confirm the order is correct and select Complete Buy
You will be directed to your bank's website (process may differ depending on the bank)
All credit cards and debit card payments are processed through Coinbase UK, Ltd.