Credit Card Payoff Calculator

Why Minimum Payments Are a Trap

Credit card minimum payments are deliberately structured to maximize the interest you pay. A typical minimum payment is 1-2% of your balance plus interest, or a small fixed amount — whichever is greater. On a $5,000 balance at 24% APR with a $100 minimum payment, you'd pay for over 17 years and rack up more than $6,000 in interest. You'd pay more in interest than the original balance. This isn't a coincidence — it's the business model.

The math is particularly brutal at high APRs because such a large portion of each payment goes to interest. At 24% APR on $5,000, your monthly interest charge is $100. A $100 minimum payment barely reduces the principal at all. You need to pay significantly more than the minimum to make meaningful progress.

Avalanche vs Snowball: Which Method Actually Works Better

The avalanche method — paying off your highest interest rate card first while making minimums on others — is mathematically optimal. It minimizes total interest paid. The snowball method — paying the smallest balance first — costs more in interest but delivers faster psychological wins. You eliminate accounts, get momentum, stay motivated.

Research in behavioral economics, including a study by the Kellogg School of Management, found that people who use the snowball method are more likely to actually eliminate their debt — not because it's mathematically superior, but because maintaining motivation matters more than mathematical efficiency for many people. If you tend to abandon financial plans, snowball might be worth the extra cost. If you're disciplined, avalanche saves real money.

Balance Transfers: When the Math Works

A 0% balance transfer promotion can be a legitimate tool for accelerating payoff. A typical offer: 3% transfer fee, 0% interest for 12-18 months. On $5,000 at 24% APR, you'd pay about $1,200 in interest over 12 months. The transfer fee is $150. Net savings: $1,050 — if you pay off the balance before the promotional period ends. The trap is that people transfer the balance but don't change their spending habits, end up with the same debt on the new card when the 0% period expires, often at an even higher APR.

The Real Cost: Interest Rate vs Actual Dollars

When evaluating credit card debt, it helps to convert the APR into actual monthly dollars. At 20% APR, a $3,000 balance costs about $50/month in interest. At 28% APR, the same balance costs $70/month. These numbers are small enough to feel manageable, which is exactly why carrying credit card balances is so easy to rationalize. The real cost is visible only when you multiply it over years of minimum payments — and by then, the total is painful.