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How credit card interest works, and how to never pay it

The interest-free period only applies if you pay the full statement balance. What happens when you pay the minimum due, with an example.

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A credit card gives you an interest-free period between the purchase and the payment due date, but only when you pay the full statement balance by the due date.

Paying the minimum due#

The minimum amount due keeps your account in good standing, but interest is charged on the unpaid balance. On most cards, new purchases also lose the interest-free period until the balance is cleared.

Example: ₹50,000 left unpaid for one month at a hypothetical 3.5% a month
ItemAmount
Unpaid balance₹50,000
Interest for the month (before GST)₹1,750

Card interest rates are much higher than most loans, so carrying a balance for months becomes expensive quickly. Check your card's actual rate in the key fact statement.

Habits that keep it free#

  • Set up auto-pay for the full statement amount.
  • Avoid cash withdrawals on a credit card: interest usually starts the same day, plus a fee.
  • If you already carry a balance, a lower-interest personal loan to clear it can cost less. Compare the total cost first.

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