All credit cards come with more than a few moving parts. Among them is an annual percentage rate, or APR — the cost of borrowing money using the card. However, the tricky thing with credit cards is ...

Knowing how credit cards work can save you headaches and cash. In a nutshell, credit cards provide access to a revolving line of credit that allows you to make purchases that can be paid off later.

APR is deliberately confusing and compounds daily. Read disclosure boxes, use 0% offers strategically, and make multiple monthly payments to minimize interest costs. When you see "18.99% APR" ...

Interest-rate cuts are supposed to lower borrowing costs, but that's not necessarily happening for credit-card users The Federal Reserve has taken sizable steps to lower its benchmark interest rate ...