Why the minimum due is a trap
A credit card's minimum due is usually a percentage of your outstanding balance — commonly around 5% — subject to a fixed floor. Because it's a percentage of a shrinking balance, the minimum payment itself shrinks every month you pay it. Unlike a loan EMI, which stays fixed until the debt is cleared on a set schedule, a declining minimum payment can stretch repayment out for years while interest — usually among the highest rates on any consumer credit product — keeps compounding on whatever remains. We walk through the full month-by-month arithmetic in the real cost of paying only the minimum due.
How this minimum payment calculator works
Because the minimum due changes every month, there's no single formula like an EMI — this calculator simulates the balance month by month:
The comparison column simulates a fixed payment instead — set to your first month's minimum due amount, held constant every month rather than shrinking — using the standard reducing-balance formula, since a fixed payment on a declining balance behaves like a normal loan.
A worked example
A ₹50,000 balance at 42% p.a., 5% minimum with a ₹200 floor, no extra payment:
Paying only the minimum takes roughly 17 years and around ₹1.1 lakh in interest — more than double the original balance. Paying a fixed ₹2,500 a month instead (the first month's minimum) clears the same balance in about 2 years 11 months, for a fraction of the interest.
What actually helps
- Pay more than the minimum, even a little. Any fixed amount above the minimum dramatically shortens payoff time, because it stops shrinking as the balance does.
- Stop new spending on the card while paying it down. New purchases add to the balance the minimum is calculated against.
- Consider converting to EMI if the math works out. Some issuers offer lower EMI conversion rates than the card's revolving rate — check the Credit Card EMI Calculator to see the real cost including fees.