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As a credit adviser, I often encounter people who are confused about credit cards and how they work. Credit cards can be a great way to manage your finances, but they can also be a source of stress if you don’t understand how they work. In this article, we’ll take a closer look at credit cards and how they work, including credit limits, interest rates, and fees.

Credit Limit

The credit limit on a credit card is the maximum amount of money you can borrow on that card. Your credit limit is determined by your credit score, income, and other factors. It’s important to remember that just because you have a high credit limit doesn’t mean you should spend up to that limit. In fact, it’s generally recommended to keep your credit utilization ratio (the amount you owe divided by your credit limit) below 30%.

Interest Rates

Interest rates are the cost of borrowing money on a credit card. If you carry a balance on your credit card, you will be charged interest on that balance. The interest rate on a credit card is typically higher than other types of loans because credit cards are unsecured debt (meaning there is no collateral), and there is a higher risk for the lender.

There are two types of interest rates on credit cards: fixed and variable. A fixed interest rate stays the same over time, while a variable interest rate can change based on market conditions. It’s important to understand which type of interest rate your credit card has and how it can affect your payments.


Credit cards can come with a variety of fees, including annual fees, balance transfer fees, cash advance fees, late payment fees, and foreign transaction fees. It’s important to read the fine print on your credit card agreement to understand what fees you may be responsible for. Some fees can be avoided by using your credit card responsibly, such as paying on time and avoiding cash advances.

In conclusion, credit cards can be a powerful financial tool if used responsibly. Understanding your credit limit, interest rates, and fees can help you make informed decisions about how to use your credit card. As a financial expert, I recommend that you always pay your credit card balance in full each month to avoid paying interest and fees. By using your credit card wisely, you can build a strong credit history and enjoy the benefits of a good credit score.


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