1. Sign in to capitalone.com
  2. Click on the account you want to add a joint holder to
  3. Click on “Account Services & Settings”
  4. Click on “Add/Edit Joint Account Holder” to start the invite process

Please Note: If you do not have a mobile phone number that can be used to receive a one-time passcode, you cannot add a joint holder online.

For Capital One branch accounts, please refer to your local branch with the individual(s) you would like to add to your account.