NielsenIQ Brasil’s study found that 26.3% of Brazilian households placed bets in 2025, and 49% of those households viewed betting as a way to earn extra income. The study said the Mega-Sena was used by 15.8% of betting households and the Slot, or Jogo do Tigrinho, by 7.7%.
The household and product-level findings offer operators and regulators evidence on betting participation and spending patterns in Brazil.
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A Meio/Ideia telephone survey released on 6 May found that 25% of 1,500 respondents had bet online in the previous 30 days. The poll reported that 59% believed online betting contributes to household debt, while 44% supported a total ban and 33% favoured allowing betting while prohibiting its advertising.
A study by Rede em Jogo at PUC-Rio found that 84% of betting operators most often recommended by Instagram’s algorithm were not authorised to operate in Brazil. Researchers compared accounts surfaced by the platform with the registry maintained by Brazil’s Secretariat of Prizes and Bets, the study said.
Illegal operators accounted for between 38% and 44% of online bets in Brazil in the first half of 2026, according to a study. The research, conducted by LCA Consultores using Locomotiva Institute survey data gathered in May 2026 from 2,291 gamblers, put the earlier figure at 41% to 51%. IBJR executive president Carlos Lima said federal measures are beginning to produce results.
It was reported that wagers of $10 or less accounted for 74% of Brazilian betting transactions in Q2. The Paag study linked smaller transactions to continued platform activity.
It was reported that Klavi’s sample showed average deposits rising from BRL188 to around BRL245 during the World Cup. The sample covered 1.2 million people and does not represent total Brazilian market activity.