Credit cards are useful tools when handled well and expensive ones when handled poorly. The difference between the two often comes down to a few specific habits that are easy to fix once you’re aware of them. These aren’t obscure gotchas buried in the fine print. They’re common mistakes that millions of cardholders make every month, often without realizing the cost.
Paying only the minimum
Minimum payments exist to keep your account in good standing, not to help you pay off debt. On most cards, the minimum is either a flat $25 to $35 or 1% to 2% of your balance, whichever is greater. If you owe $5,000 at 22% APR and pay only the minimum, you’ll be paying for over 20 years and spend more than $7,000 in interest on top of the original balance.
The credit card companies know exactly what they’re doing with minimum payments. They’re designed to keep you in debt as long as possible while generating maximum interest revenue. Your card statement is required to show how long it takes to pay off your balance with minimums versus a fixed higher payment. Look at that box next time. The numbers are sobering.
If you can’t pay the full balance, at least pay more than the minimum. Even an extra $50 a month can shave years off your repayment timeline and save thousands in interest.
Ignoring the interest rate because you have rewards
Some people justify keeping a balance because their card earns 2% cash back. But if your APR is 24% and you’re carrying a $3,000 balance, you’re paying roughly $720 a year in interest. Your 2% cash back on, say, $1,500 in monthly spending earns you $360. You’re losing $360 per year, net. The rewards aren’t rewarding you. They’re subsidizing a fraction of your interest costs.
Rewards only make sense if you pay your balance in full every billing cycle. Otherwise, the interest wipes out the value and then some. If you’re carrying a balance, forget about rewards and focus on the lowest interest rate card you can find, or look into a 0% balance transfer.
Not checking your statements
Statement review sounds basic, and it is. But a 2023 survey by the Consumer Financial Protection Bureau found that roughly 1 in 5 cardholders rarely or never review their statements in detail. Fraudulent charges, billing errors, and forgotten subscriptions slip through all the time.
I’ve caught charges for a gym membership I cancelled six months earlier, a double charge from a restaurant, and a $9.99 monthly subscription I didn’t recognize (turned out to be a free trial I forgot to cancel). None of these were large individually, but they add up to real money over a year.
Set aside five minutes each month to scan your statement line by line. Most card apps make this easy with push notifications for every transaction. Turn those on. If you see something you don’t recognize, dispute it immediately. You have 60 days from the statement date to file a dispute under the Fair Credit Billing Act.
Cash advances
Using your credit card for a cash advance is one of the most expensive things you can do with plastic. Cash advance APRs typically run 25% to 30%, higher than the purchase rate. There’s usually a fee of 3% to 5% per advance on top of that. And unlike regular purchases, there’s no grace period. Interest starts accruing immediately, from the moment the cash hits your hand.
People typically resort to cash advances when they’re in a tight spot, which makes the high cost especially painful. If you need cash and your only option is a credit card advance, that’s a sign of a deeper cash flow problem that needs addressing. Even a small personal loan from a credit union will have better terms.
ATM withdrawals at casinos are the most common cash advance I hear about, and that tells you something about the situations that drive people to use this feature.
Closing old cards
You stop using a card, so you close it. Makes sense, right? Except closing a card can hurt your credit score in two ways.
First, it reduces your total available credit, which increases your utilization ratio. If you have $20,000 in total credit limits across three cards and you’re carrying $4,000 in balances, your utilization is 20%. Close a card with a $5,000 limit and your utilization jumps to 27% without your debt changing at all.
Second, it eventually reduces the average age of your accounts. If that was your oldest card, the impact can be significant. Credit scoring models like seeing long established accounts with clean payment histories.
The better move is to keep the card open and use it for a small recurring charge, like a streaming subscription. Pay it off on autopay and forget about it. Your credit profile benefits from the available credit and account age without requiring any active management.
The one exception: if the card has an annual fee you can’t justify, call and ask to downgrade to a no fee version from the same issuer. This preserves your account history and credit limit without costing you anything. If they won’t downgrade, then closing it might be the right call, but weigh the credit impact first.
The broader pattern
All five of these mistakes share a common thread: they happen when you’re not paying attention. Credit card companies profit from inertia and inattention. The fix isn’t complicated. Check your statements, understand your terms, pay more than the minimum, and think twice before closing accounts or taking cash advances. Small changes in how you manage your cards can save you thousands over a lifetime.