It’s the single biggest factor in your credit score! The score looks at how much of your credit limit you’re using, called your “credit utilization.“ Think of it like a test: using a small amount of your available credit (like under 30%) shows you’re responsible. Using most or all of your limit looks risky to lenders, even if you pay it off later. Keeping balances low proves you can manage credit wisely without relying on it too much.

Your credit limit is the maximum amount the card company lets you borrow. It’s very important to not use too much of it. Try to keep your balance well below half of your limit, and even lower is better. Using a small amount shows companies you are responsible. Using too much of your limit can hurt your credit score because it looks like you might be in money trouble.

Your phone can be a great tool for safety. Set up alerts so your bank texts you for every purchase. This way, you’ll know instantly if something is wrong. Many banks also let you “freeze” your card right from their app if you just misplace it, then “unfreeze” it if you find it. Using your phone to pay (like with Apple Pay or Google Pay) can also be safer than swiping your physical card.

You should watch for a few common fees. The annual fee is a yearly charge just for having the card. Late payment fees happen if you miss your payment due date. Over-the-limit fees can occur if you spend more than your credit limit allows. Also, watch for foreign transaction fees if you use your card outside the country. Knowing these helps you avoid surprise charges!