Bank accounts, cards and staying in control

As a teenager, you can usually have your own bank account and a card to go with it — a big step toward independence. Used well, a bank account makes managing money easy; understood poorly, cards can make it too easy to overspend. Getting this right now is a huge head start.

There are different card types worth knowing. A debit card spends money you actually have in your account — when it's gone, it's gone, which makes it a safe way to learn. A credit card (which you'll come across as an adult) is different: it lets you spend money you don't have yet and pay it back later, and if you don't pay it back fully, it charges you extra called interest. For now, the key idea is simple: a debit card spends your money; a credit card borrows money.

The golden rule with any card is to always know what you have and not spend more than that. Cards make spending feel invisible — a quick tap and it's done — so it's easy to lose track. Checking your balance regularly (most banks have an app) keeps you in control. Treating the money on your card as the real, limited amount it is — not endless — is the habit that keeps you out of trouble for life.