Brazil’s betting industry prepares joint legal challenge to federal ban on online operators

Brazil’s digital betting sector spent the weekend lining up a coordinated response to the federal government’s provisional measure published on Friday, September 25, which would prohibit betting operations in Brazil. The plan is to take the fight to court this week, with operators trying to avoid a scattered set of individual cases that could weaken the main challenge.

1. According to Valor, associations and lawyers in the sector had already been coordinating before the provisional measure was published. On Friday, September 25, about 200 people joined a virtual meeting, including operators and representatives from other parts of the chain such as game developers, and the talks continued through Saturday and Sunday.
2. One option under review is a Direct Action of Unconstitutionality, or ADI (Ação Direta de Inconstitucionalidade), at the Supreme Federal Court, the STF. Another is a collective writ of mandamus, whose draft started on Saturday. The idea is for more than one association to sign the filing, giving it more legal weight.
3. To keep the push aligned, betting companies plan to avoid individual lawsuits before the collective filing is presented. The logic is simple enough: an adverse ruling in a standalone case should not poison the main challenge. Individual actions after that are still on the table.
4. Carlos Lima, chief executive of the Brazilian Institute of Responsible Gaming, the IBJR, confirmed the September 25 meeting but did not spell out which legal tools are being considered. He said only: “We will seek a judicial route.” Asked specifically about an ADI at the STF, he replied: “Everything is being assessed. No decision has been made regarding any of the paths to be followed.”
5. Lima also attacked the government’s rationale for the measure, which was framed as a fight against the illegal market. According to figures provided by him, betting companies paid R$ 170 million in supervision fees between January 2025 and July 2026. His point was blunt: if the government was serious about fighting illegal betting, why not use those R$ 170 million against the clandestine market?

The other issue here is process. On paper, a total ban is one thing; in practice, a sudden prohibition without a phase-out period gives operators very little room to unwind contracts, payments, and compliance work in an orderly way. That is exactly why the sector is pushing for a collective filing rather than a dozen isolated fights.