What Is Credit — Borrowing Today, Paying Tomorrow

Look at the adults in your life. Chances are, most of them have borrowed money to buy something big, like a car or a home. In fact, in most countries, between 60% and 80% of adults have used credit. It’s a normal part of modern life, but it’s also one of the easiest ways to get into financial trouble. Understanding how it works isn't optional; it's essential.

Credit is simple in theory: you use someone else's money now and promise to pay it back later. But there's a catch. That promise almost always comes with a fee called interest.Think of it like this:The lender is the person or company providing the money. They are a business, and interest is how they make a profit.The borrower is you.The principal is the original amount of money you borrow.The interest is the extra money you pay for the convenience of borrowing. It's usually calculated as a percentage of the principal over a year, known as the Annual Percentage Rate (APR).This isn't a new idea. The concept of charging interest is over 4,000 years old. Credit is a powerful tool. It can help you invest in your education or start a business. But if used carelessly for things you can't afford,...

Olivia, 17, wanted to take a professional certification course that cost 2,000 units of her local currency. It would look great on her applications for jobs and university. The school offered a payment plan: 200 units a month for 10 months, with no interest. But she also saw an ad for a quick loan at 15% APR that would let her pay the school upfront. She pulled up an online loan calculator. The payment plan was simple: 10 payments of 200 equals exactly 2,000. For the loan, paying it back over the same 10 months would cost her about 2,138 in total. The loan would get her enrolled faster, but it would cost her an extra 138 units for that speed. She realized that convenience had a very specific price tag.