A study by Yield Sec estimated that illegal online gambling in the European Union deprived member states of more than €20bn in tax revenue in 2024. The study was commissioned by an unnamed party in the available text.
The estimate concerns tax revenue exposure for EU governments and the scale of illegal online gambling.
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A bill before Brazil’s Senate proposes prohibiting advertising and sponsorship related to sports betting and online gaming. The proposal is awaiting a rapporteur in the Constitution and Justice Committee after the Science and Technology Committee backed a substitute; estimates cited in the report put potential annual losses for Serie A clubs at up to R$1 billion.
The Campaign for Fairer Gambling said illegal sports streaming is helping expand illegal gambling. Its report says 89% of illegal sports streams carried illegal-gambling advertising in 2024 and the first half of 2025, while British audiences watched 4.7 billion illegal sports streams over that period.
The Campaign for Fairer Gambling said its report, based on data from the first half of 2025, estimated offshore operators held 9% of the UK gaming market. The report also linked 89% of illegal sports-stream views to illegal gambling, according to the account of its findings.
Research commissioned by the Campaign for Fairer Gambling found that 89% of illegal sports-stream views in Great Britain during 2024 and the first half of 2025 carried illegal gambling advertising. The report also estimated 3.1 billion views of streams lasting at least 90 seconds in 2024 and 1.6 billion in the first half of 2025. It estimated illegal operators held about 9% of the £8.2bn online gambling market, using first-half 2025 data.
The European Casino Association published a study by Yield Sec estimating that illegal operators accounted for 71% of the EU online gambling market in 2024. The study put unregulated gross gaming revenue at €80.6bn, compared with €33.6bn for the regulated market, and estimated that illegal operators diverted more than €20bn in tax revenue that year.