KEY POINTS
  • The Consumer Financial Protection Bureau signaled a crackdown on how much banks are charging in credit card interest.
  • With rates on the rise, consumers with an average $5,000 balance could pay $1,000 in interest over the year, the agency said.

Credit cards are one of the easiest and most common ways to borrow money — but also one of the most expensive.

Now the Consumer Financial Protection Bureau is looking into just how much banks charge in credit card interest.