Having your spouse as an authorised user on your credit card comes with some pros and cons.
On the one hand, you will enjoy several benefits that include sharing a bill, splitting the fees, and earning more rewards from more spending.
On the other hand, you will have to cope with several disadvantages, which include: paying for charges you did not make yourself; occasional disagreements over payments made on the card and the spending habits of your spouse; and difficulty in managing the card after a breakup or divorce.