Date: 10.11.2025

by Grzegorz Kempiński

Gambling Commission Faces Challenges Measuring Illegal Market

The UK Gambling Commission has released the final part of its four-part series examining illegal online gambling, outlining the ongoing difficulties in accurately assessing the size of the unregulated market. The regulator stresses that only collaboration across industry, government and financial services can help strengthen data collection and reduce illicit gambling activity.

Measuring a Hidden Market

In its concluding report, the Gambling Commission notes that determining the true scale of illegal online gambling remains a complex task. The regulator explains that limited access to reliable data and the secretive nature of illegal operators make precise measurement nearly impossible. It draws comparisons to other underground economies, such as the trade in counterfeit tobacco products, where estimation also relies heavily on assumptions.

While the Commission has not released a definitive figure for the market’s value, it says the research has improved understanding of how illegal platforms operate and how consumers interact with them. This information will, according to the regulator, support more effective enforcement and help shape future policy decisions.

Trends, Risks and Next Steps

Findings from the series indicate that motivations for engaging with illegal gambling sites differ widely – from self-excluded players seeking alternatives to users who are unaware that certain websites lack a UK licence. The Commission adds that not all illegal gambling represents a direct loss to the regulated market, since some participants may be ineligible to gamble legally.

Crucially, the regulator states that there is no evidence of sustained growth in consumer engagement with illegal platforms. Instead, the available data suggest that overall activity remains relatively stable. Despite this, the Commission emphasizes the need for ongoing vigilance, research, and stronger enforcement measures. It calls for coordinated efforts between regulators, licensed operators, technology companies and financial institutions to limit the reach of illegal gambling in the UK.