UK Gambling Commission Analysis Examines Open Banking Data on Suspected Illegal Gambling Transactions

The UK Gambling Commission released findings from research that examined anonymized open banking transaction data collected from consenting individuals between July 2018 and July 2026, and this dataset revealed 3,426 transactions connected to suspected illegal operators that involved 179 people. Researchers structured the study to track patterns across multiple years while focusing on repeat activity rather than isolated incidents, and the approach allowed analysts to distinguish between one-time engagements and ongoing use of unlicensed platforms.

Key Patterns Emerge from Transaction Records

Data shows that 91% of individuals identified as repeat users of illegal gambling sites continued to place bets with licensed operators during the same period, and this overlap indicates that activity on unlicensed platforms did not replace participation in regulated markets. Analysts tracked account movements before and after first contact with suspected illegal operators, yet they observed no significant drop in spending or frequency on legal sites once people began using unlicensed options. The pattern suggests supplementation occurs more often than substitution, because total transaction volumes across both categories remained stable for most participants in the sample.

Those who engaged with suspected illegal operators scored as problem gamblers at a rate of 45%, whereas the corresponding figure for people who used only licensed operators stood at 6%. The difference appears across multiple indicators within the open banking records, including deposit frequency, average transaction size, and timing of transfers relative to known pay cycles. Observers note that the elevated rate aligns with earlier studies that linked higher-risk behavior to platforms operating outside regulatory frameworks, although the current analysis draws from direct transaction evidence rather than self-reported surveys.

Scope and Methodology of the Open Banking Review

The review covered a defined eight-year window ending in July 2026, and it relied on voluntary consent from account holders to access transaction details without personal identifiers. Commission staff applied filters to isolate payments that matched known characteristics of illegal operators, such as specific merchant descriptors or recurring patterns that prior enforcement actions had flagged. This process identified the 3,426 transactions tied to 179 distinct individuals, providing a focused cohort for deeper examination of behavioral sequences.

Further breakdowns revealed that many of the flagged transfers occurred alongside regular deposits to licensed betting accounts, reinforcing the supplementary nature of the activity. Researchers examined sequences month by month to determine whether legal play declined after an individual first interacted with an unlicensed site, but aggregate figures showed continuity rather than displacement. The absence of notable decline holds across both deposit amounts and transaction counts, according to the published summary.

Connections Between Illegal Activity and Problem Gambling Indicators

Problem gambling classification in the dataset relied on established markers within the transaction histories, including rapid successive deposits and elevated overall spend relative to income signals. People who recorded transactions with suspected illegal operators displayed these markers at substantially higher rates than the licensed-only group, and the 45% versus 6% split represents one of the clearest quantitative distinctions drawn from the open banking sample. Analysts cross-referenced these markers with the timing of illegal site usage to explore whether the behavior preceded or followed initial contact with unlicensed platforms.

Evidence from the records points to coexistence of the two forms of play rather than a shift from one to the other. Those who've studied similar datasets in other jurisdictions have noted comparable overlaps, yet the UK findings benefit from granular transaction visibility that self-reported surveys often lack. The report titled "Illegal gambling - Findings from an open banking data analysis" presents the full methodology and additional tables that break down transaction volumes by operator type and risk category.

Regulatory Context and Data Release Timing

The Gambling Commission published the analysis in October 2026, several months after the final data collection period closed in July of the same year. Publication timing allowed staff to complete verification steps and to align the release with ongoing enforcement priorities. The dataset remains anonymized throughout, and the Commission has stated that individual-level information will not be shared beyond the aggregated statistics contained in the report.

Linkage to the official source appears through references to the Gambling Commission statistics and research page, where the full document resides. Readers can access the underlying tables that detail the 3,426 transactions and the distribution across the 179 individuals without needing additional identifiers.

Conclusion

The open banking analysis supplies concrete transaction evidence that illegal gambling activity frequently occurs alongside continued use of licensed operators, and it documents a markedly higher prevalence of problem gambling markers among those who engage with suspected unlicensed sites. Figures from the eight-year dataset illustrate both the scale of the identified activity and the behavioral continuity that persists across legal and illegal channels. The report supplies regulators and researchers with a baseline for tracking future trends while maintaining the anonymity safeguards built into the original data collection process.