Can I add my phone number to more than one account? Updated November 16, 2018 21:41 Your phone number helps us verify your identity, so it can only be associated with one account. If a family member or friend used your number to set up their account and you now need to set up your own, contact us. Was this article helpful? Related articles Contact us! Why do I need to enter my mobile phone number to sign up? How do I change my email address? Two-Factor Authentication with Google Authenticator Things to know before you start with Credit Karma Tax Avez-vous encore des questions? Contactez l’assistance aux membres Still have questions? Contact member support