For creditors, a credit card is a convenient way to loan money for everyday consumer purchases, such as clothing, gasoline, or restaurant meals. For consumers, credit cards (slangily sometimes called plastic) are also very convenient: just swipe the card at a checkout line and pay for everything in one monthly bill.
Credit cards and debit cards often look the same. Both can carry the familiar Visa or MasterCard logo. You can use both of them in the same way when making a purchase. So does it really matter which type of card you use? Despite their similar appearance, credit cards and debit cards work in very different ways. When you use a credit card, you are borrowing money to make your purchase. You will receive a bill later, and if you cannot pay the full amount of your purchase by the due date, you will be charged interest on the loan. A debit card provides a way to use your checking account. It is like writing a check, only faster. When you use a debit card, your bank will debit, or subtract, the purchase amount from your account. (To confuse matters, sometimes your debit card company will encourage you to press the Credit button instead of Debit after you swipe the card. The card itself is what is important, not the button.) Are you buying a new laptop computer? If you pay for it with your debit card, the purchase price will be deducted immediately, so be certain you have funds in your checking account to cover the full purchase price. You might use a credit card instead to give yourself more flexibility. On the other hand, you might prefer to pay as you go with a debit card for purchases such as pizza. Otherwise you would be using credit to pay for something that will be gone before the bill arrives!
Credit cards let you buy things you cannot otherwise afford. That can be fun until you realize you are deep in debt. So why do most people carry credit cards?