Understanding the minimum payment trap
Why minimums are designed to last
The minimum payment on a credit card is usually calculated as a small percentage of your balance — commonly around 2%, with a floor of $25 or so. That sounds reasonable until you notice the consequence: as your balance falls, the required payment falls right along with it. You never reach a fixed payment that steadily retires the debt. Instead, progress decelerates the closer you get, and the tail drags on for years.
This isn't an accident. A shrinking minimum keeps you paying interest for as long as possible while still feeling like you're "making your payment." It's legal, it's disclosed, and it's the single biggest reason credit card balances persist for decades.
When a balance never gets paid off
There's a threshold where minimum payments stop working entirely. If the minimum is close to the monthly interest charge, almost none of your payment touches principal — and the balance barely moves. On a large balance at a high APR, the math can produce a payoff timeline of 50, 60, or more years, which is functionally "never." When that happens, this calculator marks the line "still owing" so you can see it plainly.
A minimum payment isn't slow progress on your debt — past a certain point it's no progress at all. The trap is mathematical, not a matter of willpower.
The power of a little extra
Here's the hopeful flip side. Because extra payments go straight to principal — not split with interest — even a small fixed amount on top of the minimum changes the picture dramatically. An extra $50 a month on a typical balance can cut the payoff from decades to a few years and save thousands in interest. The reason is that a fixed extra payment doesn't shrink as the balance falls; it keeps pushing principal down at full strength the whole way.
Try a few numbers in the extra-payment field above. The jump from $0 to $25, and again from $25 to $100, is usually far bigger than people expect. That's the lever the Pay Down app helps you pull — it tracks your real balances and builds an extra-payment plan you can actually stick to.