Most big-name issuers report authorized user activity to all three of the major consumer credit bureaus. There are some instances where they may not be reported though, including: * The card is issued by a smaller regional bank.  * The issuer doesn’t allow authorized users at all. * The issuer may only report certain types of authorized users. * The issuer may only report authorized user activity for users of a certain age. * The account is delinquent.