Guides › The Dangers of Credit Cards
The Dangers of Credit Cards (and How to Stay Safe)
This guide is general education, not financial advice. Card terms change — always confirm current rates and fees on the issuer's own site. CardUps may earn a commission from some links; see our Advertiser Disclosure.
We write a lot about rewards, bonuses and approvals on CardUps, so here is the other side, said plainly: a credit card is a loan you can take out again and again with a swipe. Used with discipline, it's a handy tool. Used carelessly, it's one of the fastest ways to end up in debt that follows you for years. Before you get one — or another one — be honest with yourself about which kind of user you'll be.
1. The interest is brutal
If you don't pay your full statement balance, the card charges interest on what's left. Credit card rates are among the highest of any common kind of borrowing. The Federal Reserve's own consumer credit report (G.19) has shown average card rates above 20% in recent years — and higher still for accounts that actually pay interest. In that same report, it's nearly three times the rate on a typical new-car loan.
Interest also compounds: this month's interest gets added to the balance, and next month you pay interest on that too. A purchase you never paid off can end up costing far more than its price tag. Many cards also have a penalty APR, an even higher rate that can kick in if you pay late — check your card agreement for the exact terms.
2. The minimum-payment trap
Your statement shows a small "minimum payment due." Paying it keeps your account in good standing, which makes it feel like you're doing fine. You aren't, really. Most of a minimum payment can go to interest, so the balance barely moves.
The government takes this seriously enough that card issuers must print a warning box on every statement showing how long it would take to pay off your balance with minimum payments only — and what you'd need to pay to clear it in three years. As the Consumer Financial Protection Bureau puts it, if you make only the minimum payment, it could take years to pay off your credit card. Read that box on your next statement. Then plug your own numbers into our Minimum Payment Calculator to see the real time and cost.
3. Debt spirals start small
Almost nobody plans to owe thousands on a card. It usually goes like this: a car repair or medical bill lands on the card, you pay the minimum for a while, then regular spending keeps going on the card too. Interest grows the balance, the minimum grows with it, and soon the payment is squeezing your budget — so more everyday costs go on the card. Some people then open a second card to cover the first. That's the spiral.
4. It's easy to overspend
Paying with a card doesn't feel like spending money the way handing over cash does. Saved cards, one-click checkout and "buy now" buttons remove even more friction. A credit limit can also start to feel like money you have, when it's really money you'd owe. If you've ever been surprised by a statement total, that's this effect at work.
5. Late fees and lost perks
Miss a due date and you can be charged a late fee, lose a promotional 0% rate, and possibly trigger the penalty APR mentioned above. One forgotten payment can undo months of careful use.
6. Real damage to your credit
A payment that's 30 or more days late can be reported to the credit bureaus, and payment history is the biggest factor in your score. According to the CFPB, negative payment information can generally stay on your credit report for up to seven years. High balances hurt too: using a big share of your limit (your credit utilization) can pull your score down even if you pay on time. A lower score can mean higher rates on a car loan or mortgage, a bigger deposit for an apartment or utilities, and more denials. Our guide to how credit scores work explains why.
Who should NOT get a credit card (right now)
- You already carry card debt you can't pay off. A new card usually adds to the problem. Focus on paying down what you owe first.
- Your income is irregular and you have no savings cushion. Without an emergency fund, the card becomes the emergency fund — the classic start of a spiral.
- You often run short before payday. If the card would cover basics you can't afford, it's borrowing at a high rate, not a convenience.
- You know you're an impulse spender. No shame in it — but be honest. A debit card may serve you better.
- You're getting one just for a bonus or rewards. Rewards are small next to interest. If you'll carry a balance even some months, the interest will wipe out the points.
The only safe way: pay in full, every month
If you pay the full statement balance by the due date, most cards charge you no interest on purchases. That's the line between a card that works for you and one that works against you. Only use a credit card if you can treat it like a debit card — spending money you already have — and pay it off completely each month.
Rules to stay safe
- Only charge what's already in your bank account. If you couldn't pay cash for it today, don't put it on the card.
- Set up autopay for the full statement balance (or at least the minimum as a safety net, then pay the rest manually).
- Turn on alerts for due dates, large purchases and balances over an amount you choose.
- Keep one or two cards, not a wallet full. Fewer cards means fewer due dates and less temptation.
- Keep balances low compared with your limit, which also helps your score.
- Build an emergency fund so surprises don't land on the card. Our Emergency Fund Calculator helps you pick a target.
- Read the card agreement — the APR, penalty APR, late fee and annual fee — before you apply.
- Never take cash advances. They usually come with fees and interest that starts right away.
Already in over your head?
Stop adding new charges, then make a plan. Our Credit Card Payoff Calculator shows how fast you can be debt-free at a given payment, and the Debt Snowball vs. Avalanche tool helps you pick which card to attack first. A balance transfer can help some people, if they stop spending on the card. If you can't make the minimum, the CFPB advises that you contact your card company right away — many will work with you — and consider a nonprofit credit counselor. Be wary of companies that charge upfront fees to "settle" your debt.
The bottom line
A credit card isn't free money; it's expensive borrowing with a friendly face. If you can pay in full every month and stick to a budget, it can be useful. If you can't — yet — there's no shame in waiting. Your future self will thank you.
Run your own numbers: Credit Card Payoff Calculator · Minimum Payment Calculator · Credit Card Interest Calculator · all calculators
Get free money tips
Plain-English tips on credit, budgeting and staying out of debt — straight to your inbox.