The Minimum Payment Trap

The minimum payment on a credit card looks like a kindness: the bank asking for very little. It is actually a design. The minimum is calculated so the balance shrinks as slowly as possible while interest keeps arriving — the most profitable customer is the one who pays the minimum forever. Nothing on the statement says this. The trap only becomes visible when you look at the one number the statement does not show: how long.

The teaching example: a $1,200 balance at 24%, with a minimum payment around 3% of the balance. Paying only minimums, the debt takes roughly seven years to clear, and the total interest comes to about $1,200 — the borrower pays for the debt twice. Now fix the payment at $120 a month instead: the same debt dies in about eleven months, with roughly $150 of interest. Six fewer years and nearly ten times less interest — the balance never changed, only the payment did.

The defense is one habit: judge a debt by its payoff time, not by whether the payment feels comfortable. A comfortable payment and a debt that ends soon are usually two different plans.

In the simulation, a micro-lesson slider shows the years hiding inside a minimum payment, and the credit card cards carry this principle's chip.