Credit Cards: How Do They Actually Work?

Imagine you're out shopping and find a pair of shoes you really want. They cost ₹5,000, but you don't have ₹5,000 with you right now.

With a credit card, you can make the purchase and pay the money back later.

That sounds convenient, but a credit card isn't free money. It is a form of short-term borrowing.

What happens when you use a credit card?

When you make a purchase with a credit card, the card company pays the seller on your behalf. You then owe that amount to the card issuer.

Instead of paying for every purchase immediately, you receive a credit card bill that lists the amount you need to repay.

For example, imagine you spend:

• ₹2,000 on clothes

• ₹1,500 on eating out

• ₹1,000 on entertainment

  
  

Your bill would be ₹4,500.

You then need to repay the amount according to the terms of your card.

What if you don't pay the full amount?

This is where credit cards can become expensive.

If you don't pay your bill in full by the due date, the remaining balance can start attracting interest and other charges. That ₹4,500 purchase could therefore end up costing you considerably more.

Credit cards may also have a minimum payment, which is the smallest amount you are required to pay by the due date. But paying only the minimum doesn't mean the rest of your bill disappears — you still owe the remaining balance, and interest may continue to build on it.

Why use a credit card at all?

Used responsibly, credit cards can be useful. They can make payments more convenient, help build a credit history, and sometimes offer rewards or other benefits.

But the key is to treat the card as a way to manage payments, not as extra income.

If you spend ₹20,000 on a credit card, you still owe ₹20,000. The fact that you didn't hand over the money immediately doesn't make the purchase cheaper.

The golden rule

Before using a credit card, ask yourself:

“If I had to pay for this today, could I actually afford it?”

If the answer is no, using a credit card to make the purchase may simply be pushing the problem into the future.

And that brings us to an important question: is all borrowing bad, or can some types of debt actually be useful?