If you couldn't pay your full credit card bill this month, the bank doesn't cancel your purchase — it automatically lends you the missing amount, at an interest rate that often exceeds 400% a year. That's revolving credit card debt, and it's probably the most expensive form of credit available to an individual in Brazil.
Why revolving debt is so expensive
From the bank's perspective, revolving debt is an unsecured loan to someone who has already shown they can't pay their bill on time — in other words, high risk. Monthly interest rates typically fall between 10% and 20% a month. That doesn't sound like much at first glance, but compound interest month after month adds up fast: at 15% a month, a R$ 3,000 debt with no payments would double in under 5 months.
The most common mistake: paying only the minimum
Paying just the minimum on your bill seems to solve the problem in the short term, but it barely reduces the debt in practice — most of the payment covers just that month's interest, and the remaining balance keeps compounding. That's how a credit card debt turns into a snowball that never seems to shrink.
A practical path out of revolving debt
- Stop using the card. As long as there's a revolving balance, any new purchase just adds to the debt.
- Size up the real problem. Find out how many months it would take to pay off the current balance at the payment pace you can sustain — and how much that would cost in interest.
- Negotiate before staying in revolving debt. Most banks offer installment plans for the bill at much lower interest than revolving credit — it's worth calling to negotiate as soon as you realize you won't pay the full bill.
- Consider switching debt. A personal loan at a lower rate can cost a fraction of revolving credit — using it to pay off the card in one go is usually worth it.
- Prioritize paying above the minimum. Every extra dollar you pay reduces the balance that accrues interest next month — compounding works in your favor when you pay more, not just against you when you pay less.
To see exactly how much time and money in interest your specific case involves, use the credit card revolving debt calculator. It shows the equivalent annual interest rate (the number that really shocks people) and simulates how long it takes to zero out the balance with the monthly payment you can afford.
What if I have more than one debt?
If revolving credit card debt is just one of your debts — alongside a loan, financing, or another card —, the order in which you tackle them matters. Two popular strategies (snowball and avalanche) lead to quite different results in time and total interest paid.
See the comparison between the two in the debt payoff calculator.
This content is educational and does not replace personalized financial advice — each institution has its own negotiation and installment conditions, which are worth confirming directly with your bank.