A study of illegal gambling in Czechia estimated that unlicensed operators cost the state more than CZK330m in tax revenue each month. Its analysis put annual player losses at about CZK14.5bn and annual state tax losses at CZK2.9bn to CZK3.6bn, with as much as CZK500m more in municipal losses.
The estimates quantify tax revenue and player spending outside Czechia’s licensed gambling market.
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Reportedly, a Euromat study suggests Europe's illegal gambling market has grown threefold over six years. The study values the market at €12bn and forecasts further growth.
A study commissioned by Euromat estimated that unregulated online gambling generated €12bn in net revenue across Europe in 2025, triple its 2019 level and equal to 25% of the online gambling sector. The research covered 28 markets and was conducted by Regulus Partners and Helios. The researchers attributed growth to factors including regulatory restrictions, consumer friction and cryptocurrency use, presenting these as their analysis rather than a regulator's finding.
A study by LCA Consultores, using Locomotiva Institute data commissioned by the Brazilian Institute for Responsible Gaming, estimated that unlicensed platforms accounted for 38% to 44% of online bets in Brazil in the first half of 2026. The study put the estimate at 41% to 51% in research released in June 2025 and said enforcement efforts need to continue.
A study commissioned by the Brazilian Institute for Responsible Gaming (IBJR) estimates that illegal platforms accounted for 38% to 44% of online betting in the first half of 2026, down from 41% to 51% in the previous survey. Instituto Locomotiva surveyed 2,291 players across Brazil in May 2026, while LCA Consultores produced the study.
GRIF director Cesare Pozzi presented research on Italy's unregulated gambling market at an event in Rome. He said online gambling represents about 85% of the illegal market and that illegal activity accounts for 45% of the online segment, while cautioning that the estimates depend on statistical models.