The credit card charges that quietly drain your wallet

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• Paying only the minimum due leads to high interest and growing debt.
• Cash withdrawals on credit cards incur immediate interest and extra fees.
• Paying in full monthly avoids fees and protects your credit score.

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Credit cards can be incredibly useful. They give you an interest-free period, reward points, lounge access, discounts and sometimes even cashbacks. Used properly, they can improve your credit score and make spending smoother. But when you don’t understand how the charges work, they can become one of the most expensive forms of borrowing.

Let’s start with the biggest trap: the minimum due.

When your statement arrives, you’ll see a “total amount due” and a much smaller “minimum amount due.” Paying only the minimum keeps your account from being marked as late, but it does not stop interest. The remaining balance begins attracting finance charges, often upwards of 30 to 40 percent annually. That interest compounds monthly. Which means next month, you’re paying interest not just on what you spent, but also on last month’s interest.

This is how small balances snowball.

Then there are late payment charges. If you miss the due date altogether, banks levy a late fee based on your outstanding amount. On top of that, interest continues to accrue. More importantly, repeated delays get reported to credit bureaus, and your credit score can drop. A lower score means costlier loans later.

Cash withdrawals are another expensive mistake. Many people assume it works like a debit card. It doesn’t. The moment you withdraw cash using a credit card, interest starts immediately. There is no interest-free period. Add to that a cash advance fee, usually a percentage of the amount withdrawn, and you’re paying a premium for convenience.

Foreign transactions come with their own surprises. Most Indian credit cards charge a foreign currency mark-up fee between 2 and 4 percent. That’s over and above the exchange rate. So if you swipe abroad or even pay in foreign currency online, the final amount billed will be higher than what you expected.

Annual fees are easy to ignore in the first year because many cards waive them as a welcome offer. But from the second year onward, the fee applies unless you meet a minimum spending threshold. If you’re not using the card actively, that annual fee can feel like dead weight.

There are also less obvious charges: over-limit fees if you exceed your credit limit, EMI conversion charges if you convert purchases into instalments, and GST on interest and fees.

The Reserve Bank of India requires banks to disclose all these charges in the Most Important Terms and Conditions document. But most of us scroll past that when applying.

The safest habit is straightforward: pay the full outstanding amount before the due date, every single month. Not the minimum. The full amount.

If you’re unable to do that, it’s a sign to pause and reassess. Track spending weekly. Reduce discretionary purchases. Consider setting up automatic payment reminders.

Credit cards are not dangerous by design. They simply magnify whatever habits you already have. If you’re disciplined, they reward you. If you’re careless, they quietly cost you more than you realise.