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Viral videos of financed vehicle negotiations exposed the weight of the Total Effective Cost in financing, a rate that brings together interest, fees, insurance, and hidden charges that can transform an apparently affordable installment into a debt much greater than the consumer expected when closing the deal.
The debate about the real cost of financing has gained momentum after videos of car negotiations spread across social media. In the comments, thousands of internet users expressed surprise at realizing that the final amount paid for a financed vehicle can far exceed the price advertised at the dealership. The reason is simple and, at the same time, unknown to most: in addition to interest, any credit operation includes a series of additional costs that almost never come up in the initial conversation with the seller.
This set of expenses has a technical name. It is called Total Effective Cost, the CET, and it functions as a financial X-ray of any credit operation, whether it is vehicle financing, a mortgage loan, or even payroll loans. Those who are not familiar with the CET risk making decisions based solely on the installment amount, without seeing the real size of the debt they are taking on.
What is the Total Effective Cost and why it matters more than the interest rate
According to information released by the G1 portal, the CET is the rate that translates, into a single number, everything the consumer will pay over the course of a financing. While the interest rate represents only the cost of borrowed money, the Total Effective Cost aggregates all the expenses of the operation: interest, Tax on Financial Operations (IOF), administrative fees, insurance, and any extra charges levied by the financial institution.
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In practice, this means that two banks can offer the same interest rate for financing but present completely different final costs. The CET is the only metric that allows for an honest comparison between credit proposals, because it shows the combined impact of all charges on the total debt amount. By order of the Central Bank, every financial institution is required to inform the CET before signing the contract, accompanied by a spreadsheet detailing each component and its weight in the final cost.
What expenses are hidden within a financing
Interest rates are by far the most significant component of the CET. In general credit, rates usually range from 30% to 60% per year. This means that small differences in the rate can produce significant variations in the total amount disbursed over the months. In the case of revolving credit cards, this number can exceed 400% per year, making it one of the most expensive options available in the market.
But interest rates are not the only embedded expense. The IOF, charged by the federal government on all credit operations, increases the financing cost without the consumer noticing. Registration and credit opening fees vary from bank to bank, and insurance, such as the creditor insurance that pays off the debt in case of the borrower’s death or disability, is not always mandatory. Still, many institutions automatically include them in the proposal without asking for explicit authorization. All these items combined help explain why the final cost of financing can be surprising.
How to know if the financing is really worth it
Comparing credit proposals without looking at the CET is like choosing a cell phone plan based solely on the monthly fee, without checking the data allowance. The most important number is not the isolated installment, but the total amount that will be paid back to the bank at the end of the contract. Marcos Crivelaro, a finance professor at the Vanzolini Foundation, linked to the University of São Paulo, suggests a practical rule for any consumer: just add up how much was borrowed and how much will be paid back.
In a didactic example, financing of R$ 1,000 with interest of 12% per year may seem reasonable at first glance. However, when including IOF, registration fee, and insurance, the Total Effective Cost jumps to around 43.9% per year. This difference shows that the advertised interest is just part of the story. According to the specialist, charges such as insurance and additional services often go unnoticed, and the consumer only realizes the impact when analyzing the complete financing statement.
The debt scenario makes attention to the CET even more urgent
The latest data reinforces the importance of understanding every detail of financing before signing. In March, 80.4% of Brazilian families had some type of debt due, according to a survey by the National Confederation of Commerce of Goods, Services, and Tourism. This is the highest level ever recorded in the historical series of the survey. The delinquency rate, in turn, stood at 29.6%, practically stable compared to the previous month, but above the rate of 28.6% recorded a year earlier.
Even with signs of a decrease in the Selic rate, interest rates remain at high levels, keeping credit expensive and putting pressure on household budgets. The rise in fuel prices adds another layer of pressure on family finances and tends to push more consumers toward financing, often attracted by the installment amount without evaluating the real size of the debt. For Crivelaro, the recommendation at this moment is clear: avoid taking on new debts, except to replace a more expensive obligation with another on better terms, and even then only after a careful evaluation of the CET.
When can financing be considered abusive
Brazilian legislation does not establish a fixed percentage to define abusive interest rates. In practice, however, a financing can be legally challenged when the interest charged is significantly above the average practiced in the market or when the contract presents irregularities, such as the inclusion of services not authorized by the consumer. Stefano Ribeiro Ferri, a consumer rights specialist, emphasizes that transparency in disclosing the CET is a legal obligation at all stages of the contracting process.
The omission of relevant information, the inclusion of products without consent, and the so-called tied selling are practices that can be contested. If there is evidence of undue charges or lack of clarity regarding the Total Effective Cost, the consumer has the right to seek a review of the contract in court. In more serious situations, the financing can be annulled or its conditions adjusted by court decision.
Have you checked the CET of your financing or just looked at the installment amount when closing the deal? Share your experience in the comments; your story can help other consumers avoid falling into the same trap.
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