NIESR Analysis Points to Rising Black Market Risks in UK Gambling Sector

The National Institute of Economic and Social Research released findings that outline how recent and upcoming gambling regulations could push a notable share of British bettors toward unlicensed operators, and observers note the scale of that potential migration based on current participation patterns.

Report Details on Player Behavior Shifts

Analysts at the institute examined data around affordability checks along with tighter controls on online slots for those under 25, and they concluded that as many as 18 percent of UK punters might occasionally seek out illegal platforms while 8 percent could move there on a regular basis once the rules take full effect. Those projections rest on surveys of existing habits and responses to similar restrictions introduced elsewhere, which researchers cross-referenced against domestic market volumes.

Because the measures aim to reduce harm by limiting stake sizes and requiring income verification, the report tracks how some users respond by bypassing licensed sites altogether. Data shows that players already familiar with offshore options tend to continue or expand that activity when friction increases on regulated platforms, and the institute models the same pattern repeating after the new limits roll out.

Revenue Implications Highlighted by Industry Groups

The Betting and Gaming Council supplied parallel estimates indicating that roughly 8 percent of current online gambling revenue, equivalent to £625 million each year, stands to migrate to unregulated channels if the policy package stays unchanged. Council representatives tied this figure directly to the combined impact of affordability screening and age-specific slot caps, noting that both changes reduce the range of available products on licensed sites.

Industry sources further argued that enforcement gaps allow illegal operators to advertise freely on social channels and search engines, which accelerates the movement of activity offshore. They pointed out that black-market sites avoid the same tax and compliance costs borne by licensed firms, creating a price and convenience advantage that draws consistent users once restrictions tighten.

Timeline and Scope of Upcoming Measures

Implementation of the affordability checks and under-25 slot limits forms part of a broader regulatory update scheduled across 2025 and into 2026. While some elements began earlier this year, full enforcement of income verification for higher-stake play remains phased, and the slot stake reductions for younger adults are set to begin in stages that continue through spring 2026. Observers tracking the rollout note that operators have already adjusted product offerings in anticipation, which has prompted early discussion about customer retention strategies.

Those adjustments include revised welcome offers and loyalty mechanics that stay within the new stake caps, yet the report suggests these steps may not fully offset the draw of unrestricted illegal alternatives for a subset of users. Figures released alongside the analysis show that participation in illegal betting already occurs at low but measurable levels, and the projected increases would represent a marked rise from the baseline.

Stakeholder Responses and Market Context

Trade bodies and individual operators have voiced concerns that the cumulative effect of the rules could erode the competitive position of the licensed market. They reference historical examples from other jurisdictions where similar safeguards correlated with higher black-market shares, and they advocate for targeted enforcement against illegal sites to accompany the consumer-protection measures.

The National Institute of Economic and Social Research stresses that its estimates depend on behavioral assumptions drawn from current survey responses, and it calls for ongoing monitoring once the policies activate. Updates scheduled for later review periods will track whether actual migration matches the modeled percentages or remains lower because of improved detection tools.

Conclusion

The NIESR findings therefore supply a quantitative framework for assessing how affordability checks and slot restrictions may reshape UK betting flows. With the Betting and Gaming Council projecting an annual £625 million shift and the institute forecasting up to 18 percent occasional plus 8 percent consistent use of illegal sites, the report supplies regulators and operators with concrete benchmarks against which future outcomes can be measured. Continued data collection through 2026 will clarify whether those projections hold or require recalibration as the rules settle into place.