Managing your credit cards wisely not only safeguards you against fraud but also helps you retain more money.

While credit cards can be a safe and convenient option for purchases, they can also become a costly burden leading to bankruptcy. The key lies not in the cards themselves but in your usage. Here are nine credit card blunders to steer clear of and how to improve your approach.

1. Not Using Them Wisely

Debit cards may prevent overspending, yet they expose your bank account to fraud. With frequent data breaches reported, this should raise concerns.

Credit cards provide superior consumer protections and act as intermediaries in disputes with merchants. Many cards also come with benefits like theft protection and warranty extensions. Use credit cards for significant purchases and transactions prone to fraud, such as online shopping or fueling your vehicle.

2. Missing Payments

Want to witness a sudden drop in your credit score? Missing a credit card payment can lower your score by over 100 points. A late payment incurs fees, and being 30 days late signals to credit scoring systems that you're struggling financially, even if it's just a slip-up. Paying 60 days late may lead to higher interest rates.

3. Maxing Out Your Cards

Your credit utilization ratio plays a crucial role in your credit scores; the lower, the better. Using your full credit limit, even if you pay it off later, can negatively affect your scores.

Instead, distribute your expenses to keep usage below 30% of your limit on any single card. Aim for under 10% if you're looking to boost your credit scores.

4. Carrying a Balance

Keeping balances isn't beneficial for your credit scores and can lead to hefty interest fees. Contrary to popular belief, around 62% of U.S. households are free of credit card debt, according to the National Foundation for Credit Counseling.

5. Making Only Minimum Payments

Paying only the minimum amount is a costly financial mistake. Credit card issuers also disapprove of this habit, as it suggests you're in a tough spot financially.

Your credit card statement outlines the cost of maintaining your current balance if you choose to pay just the minimum. Spoiler: it's significant. You may end up paying much more in interest than your current balance, resulting in paying for items twice.

6. Ignoring Your Statement

When was the last time you thoroughly reviewed your credit card statement?

Many people overlook the cost of minimum payments detailed in their statements. This can be a costly mistake; failing to report errors or fraudulent charges promptly may hinder your ability to secure refunds.

7. Using Cards for Medical Expenses

Using your card for small co-pays is fine, but be cautious with larger medical bills.

Charging a significant bill may disqualify you from discounts or financial assistance that could significantly reduce your costs. Many healthcare providers offer interest-free payment plans, which are preferable to accruing credit card debt. Consult a financial advisor at the medical facility to explore your options.

8. Taking Cash Advances

While credit cards can provide cash at ATMs, this transaction is known as a cash advance and typically incurs a high-interest rate exceeding 20%. While better than high-interest loans, it's best to avoid cash advances altogether.

9. Overlooking Rewards

If you pay your balance in full, you could miss out on cash back, travel points, and other rewards. To keep it simple, consider using a cash-back card.

Rewards can be enticing, but they shouldn't come at the cost of high interest rates. Charge only what you can afford to pay off monthly. Also, resist the urge to overspend to earn rewards; spending within your budget is the smarter move.