UK Gambling Commission Study Maps Illegal Operator Activity via Open Banking Records
Kai Simmons · Oct 30, 2026

UK Gambling Commission Study Maps Illegal Operator Activity via Open Banking Records
The UK Gambling Commission released findings from research that examined anonymized Open Banking transaction data linked to survey responses from participants who reported gambling activity. This analysis focused on 179 individuals who recorded 3,426 transactions directed toward suspected illegal operators, and the data revealed clear patterns in how those individuals interacted with both licensed and unlicensed sites. Researchers connected banking records to self-reported survey answers to identify repeated engagement with illegal operators. The study tracked transaction sequences over time and compared activity before and after individuals first used suspected illegal sites. Data showed that 91 percent of participants who engaged repeatedly with illegal operators also maintained accounts or activity with licensed operators, and licensed gambling volumes showed no substantial decline once illegal transactions began.Transaction Patterns and Overlap Between Licensed and Illegal Sites
Analysis of the 3,426 transactions indicated that many individuals used both categories of operators in parallel rather than switching entirely from one to the other. Researchers tracked dates and amounts to measure whether licensed activity decreased after illegal engagement started, yet figures showed continued licensed play at similar levels for the majority of the sample. Observers note that this overlap suggests illegal operators supplement existing gambling habits instead of displacing licensed ones.
The research also examined frequency of transactions and average amounts sent to suspected illegal operators. Participants who showed repeated illegal activity tended to maintain multiple payment streams, with some sending smaller recurring amounts while still placing larger wagers through licensed platforms. This dual-channel behavior appeared across different age groups within the dataset, though the study did not break out detailed demographic splits beyond the core findings.
Problem Gambling Indicators Among Illegal Site Users
Survey responses tied to the transaction data included Problem Gambling Severity Index scores. Among those who used suspected illegal operators, 45 percent recorded scores of 8 or higher, indicating problem gambling. In contrast, the broader group of licensed gamblers in the linked survey showed 6 percent reaching the same threshold. Researchers compared these rates directly within the matched dataset to highlight the difference in problem gambling prevalence between the two groups.
Further examination of the data showed that higher PGSI scores correlated with both frequency of illegal transactions and total amounts transferred. Individuals with multiple illegal transactions over the observation period were more likely to report elevated scores, while those with single or infrequent illegal transactions showed more varied results. The study presented these associations as observed patterns without establishing causation.
Methodology Behind the Open Banking and Survey Linkage
The UK Gambling Commission constructed the dataset by combining anonymized banking records with voluntary survey participation. Participants consented to data linkage, which allowed researchers to match specific transactions to self-reported gambling behavior and problem gambling assessments. This approach provided transaction-level visibility that surveys alone could not capture, while the survey component added context on player experiences and self-perceived issues.
Researchers applied filters to isolate transactions directed toward operators without UK licenses. The resulting sample of 179 individuals and 3,426 transactions formed the core of the analysis. Data processing steps included verification of transaction dates, amounts, and operator identification to reduce false positives in the illegal operator category. The commission published the full methodology alongside the findings for transparency.
Broader Context of the Research Release
This analysis forms part of ongoing monitoring efforts by the UK Gambling Commission into market behavior and regulatory compliance. The commission has used similar data-driven methods in prior reports to track payment flows and player migration patterns. Findings from the current study add detail to existing knowledge about how some players navigate between regulated and unregulated options.
Publication timing aligns with continued regulatory focus on consumer protection measures and enforcement against illegal operators. The report provides quantitative evidence that regulators and researchers can reference when evaluating the scale of illegal activity and its relationship to licensed markets.
Conclusion
The UK Gambling Commission study documented specific transaction patterns among 179 individuals who sent 3,426 payments to suspected illegal operators. Data showed that 91 percent of those with repeated illegal activity also used licensed operators, with no major reduction in licensed play after illegal engagement began. Problem gambling rates reached 45 percent in the illegal operator group compared with 6 percent among licensed gamblers overall. These figures come directly from the linked Open Banking and survey dataset released by the commission.