What is the Discover it Cash Back authorized user bonus?
The Discover it® Cash Back does not offer an authorized user bonus, currently. Some credit cards give a bonus for adding an authorized user, though this is a relatively rare feature and Discover it Cash Back is not among the cards offering it.
Adding an authorized user to your Discover it Cash Back still has benefits, though. To start, the authorized user is able to build credit, if they are age 18 or older. In addition, an authorized user's spending still counts toward earning a card's initial bonus. And authorized users' purchases will earn rewards at the same rate as the primary cardholder's purchases. Only the primary cardholder is able to redeem rewards earned by any user on the card, though.