Minimum Payment
Trap Calculator

What is the minimum payment trap?

Credit card minimum payments are typically set at 1–2% of your outstanding balance, or a flat dollar amount like $25 — whichever is greater. On a $5,000 balance at 24.9% APR, that minimum might be just $100 a month. It sounds affordable. The catch: at 24.9% APR, you're accumulating roughly $104 in interest every month. Your $100 payment barely covers the interest, let alone the principal.

The result is a cycle where balances shrink almost imperceptibly while the bank collects year after year of interest. The Consumer Financial Protection Bureau (CFPB) found that cardholders who only make minimum payments end up paying several times the original balance in interest — and take 10–20 years to pay off what should have taken a few years.

How minimum payments are calculated

Most credit card issuers use one of two methods:

• 1. Percentage of balance. Typically 1–3% of the outstanding balance, with a minimum floor (often $25). As your balance falls, so does the minimum — which means your payoff timeline stays extremely long even as you make progress.
• 2. Interest plus a fixed amount. Some issuers charge all accrued interest plus 1% of principal. This is slightly more aggressive but still produces very slow payoff if you carry a large balance.

Our calculator uses the percentage-of-balance method by default (2%), matching the most common issuer policy. You can switch to a fixed dollar amount if you know your card's specific terms.

The real numbers: a $5,000 balance example

These numbers change dramatically when you pay even a little more. Adding $100/month above the minimum on that same $5,000 balance cuts the payoff time to around 3 years and saves over $5,000 in interest. That's the power of breaking out of the minimum payment trap.

Why card issuers set minimums so low

Credit card companies earn revenue primarily from interest charges. A low minimum payment maximises the time a cardholder spends in debt — and therefore the total interest collected. According to the Federal Reserve's G.19 report, revolving consumer credit in the US exceeded $1.35 trillion in 2024. At an average rate near 22–25%, that represents hundreds of billions of dollars in interest annually — revenue that flows from cardholders to issuers.

Since 2010, the CFPB has required issuers to include a "minimum payment warning" on statements showing how long payoff takes at minimums only. Most cardholders see it and scroll past. This calculator makes that number impossible to ignore.

How to escape the minimum payment trap

The math is unambiguous: any amount above the minimum accelerates payoff and saves interest. Here are practical strategies in order of impact:

• — Pay a fixed dollar amount, not a percentage. When you pay a fixed $200/month instead of 2% of balance, your payment stays constant even as the balance shrinks. That fixed payment becomes an increasingly large percentage of remaining debt over time.
• — Add a small fixed extra payment. Even $50 extra per month can cut years off a typical balance. Use the comparison section of this calculator to see exactly how much time and money each increment saves on your specific balance.
• — Use the avalanche method across multiple cards. If you carry balances on several cards, direct all extra payments toward the highest-APR card first. Once that's paid off, roll its payment into the next highest. This is mathematically optimal for minimizing total interest paid.
• — Request a lower APR. A CreditCards.com survey found 76% of cardholders who asked for a lower rate received one. Even a 3–5 point reduction saves hundreds of dollars over the life of a balance.
• — Consider a balance transfer. Many issuers offer 0% APR promotional periods of 12–21 months. Moving a balance to a 0% card and paying aggressively during the promo period can eliminate interest entirely — provided you pay it off before the rate resets.

How this calculator works

This tool runs a month-by-month amortisation simulation. For each month, it calculates the interest accrued on the remaining balance, adds it to the balance, then subtracts your payment. It repeats until the balance reaches zero, tracking total months elapsed and cumulative interest paid.

For the percentage-of-balance method, the minimum payment is recalculated each month as the balance declines. A floor of $25 is applied — consistent with most issuer policies. For fixed payments, the amount stays constant throughout.

The comparison section uses the same simulation with your chosen extra payment added to the minimum each month. The difference in total interest and payoff time is the direct financial value of paying more than the minimum.