Compound interest is commonly described as "interest earned on interest." Compound interest can work to your advantage as your investments grow over time, but against you if you're paying off debt, ...

Matt Webber is an experienced personal finance writer, researcher, and editor. He has published widely on personal finance, marketing, and the impact of technology on contemporary arts and culture.

Interest is the amount of money you must pay to borrow money in addition to the loan's principal. It's also the amount you are paid over time when you deposit money in a savings account or certificate ...