Why You Shouldn’t Always Tell Your Bank How Much You Make - WSJ

A higher credit limit is generally good for your credit score, since you will be using a smaller share of your available credit, he said. (That might not be ideal if you think a higher limit will tempt you to overspend.) Updating your income could lead to other perks, such as qualifying you for an upgraded card or a home-equity line of credit.

Cool perks, bro.