When hotels and rental car companies take your card, they don’t just charge you for the booking. They also put a temporary hold on extra money as a security deposit — sometimes hundreds of dollars. With a credit card, that’s just a hold on your credit limit and you never feel it. With a debit card, those funds are actually frozen in your checking account, which means that cash is unavailable while you’re on your trip. You can’t spend it on anything — even if you needed it for food or gas.
And if something goes wrong — like fraud, a dispute with the hotel, or a charge you didn’t authorize — credit cards have much stronger protections built in. Credit cards generally offer stronger fraud protection than debit cards, especially when you’re booking travel or making deposits somewhere unfamiliar. With a debit card, if someone makes a fraudulent charge, your actual cash is already gone while you wait for the bank to investigate. With a credit card, the disputed amount is typically a hold on credit rather than withdrawn cash — which gives you more breathing room while the issue gets resolved.
Some hotels won’t even accept a debit card at all — or they’ll add extra hoops and requirements if you try. It varies by property, but it’s a real thing that can leave you scrambling at check-in.
Bottom line: if you have access to a credit card (even a low-limit one you pay off regularly), use it for hotels and rental cars. Note that in the U.S. you generally need to be 18 to open your own credit card, but younger travelers can sometimes be added as an authorized user on a parent or guardian’s account — worth asking about before your trip. Keep the debit card for ATMs and everyday purchases where you know exactly what’s being charged.