Credit Card Mistakes That Can Cost You Thousands of Rupees

Credit cards are useful tools, but a handful of common mistakes quietly cost cardholders far more than they realize. None of these require bad luck — they're all avoidable.

Paying only the minimum due

Paying the minimum due keeps your account "current," but it does not stop interest from accruing on your full outstanding balance. Worse, it kills your interest-free grace period entirely — even new purchases start earning interest from day one until you clear the full bill. The fix is simple: pay the total amount due, every time, or don't spend more than you can pay off in full.

Missing a payment due date

Missing the due date triggers a late fee, dings your CIBIL score, and also wipes out your grace period for the next cycle. It's a triple penalty for one missed date. Setting up autopay for at least the minimum due, with a manual reminder to pay in full, removes this risk almost entirely.

Letting reward points expire

Most reward programs have an expiry window, and banks rarely remind you loudly before points lapse. Unredeemed points are money you already earned and then quietly gave back. Check your program's expiry rules once a year and redeem before the clock runs out.

Ignoring forex markup on "small" international purchases

A ₹500 subscription charged in dollars still gets hit with the same forex markup percentage as a big-ticket purchase — it just feels too small to notice. Over a year of small international subscriptions, that markup adds up. If you travel or shop internationally often, a card with low forex markup is worth the switch.

Using cash advance on a credit card

Cash advance is one of the most expensive ways to borrow money. Unlike purchases, there's no interest-free grace period — interest starts accruing the moment cash leaves the ATM, on top of a flat cash advance fee. Treat your credit card's cash advance limit as a last resort, not a backup source of cash.

Applying for multiple cards before a big loan

Every card application triggers a hard inquiry on your credit report. Apply for two or three cards in the weeks before a home or car loan application, and you can meaningfully dent your approval odds right when you need them most. If a big loan is on the horizon, freeze new card applications for at least a few months beforehand.

Where to go from here

For the mechanics of how minimum due traps you specifically, read the minimum due trap explained. To understand how these mistakes show up on your credit report, see CIBIL score basics.