Criminals operate or exploit unregulated gambling venues that remain hidden from official oversight, allowing them to introduce illicit funds as buy-ins and commingle them with legitimate bettors’ stakes to bypass standard AML checks. Such underground establishments seldom require customer identification, enabling large cash moves to occur with little documentation. Organized crime groups often protect or manage these rings, using them both to launder money and to finance other criminal operations with minimal traceability. In some instances, launderers mirror tactics seen in regulated markets—such as buying winning tickets from genuine bettors at a premium or forging receipts—and present these as legitimate payouts. Certain operators or facilitators also rely on underground banks to provide funds for high-value wagers, obscuring the original source of capital and circumventing cross-border controls. In the absence of reliable oversight or licensing, these illicit gambling networks grant criminals substantial anonymity and create ideal conditions for layering and consolidating criminal proceeds under the cover of gambling profits.
Underground Gambling
Unlicensed Gambling
Illegal Gambling Dens
Tactics
Unregulated casinos or betting sites introduce additional opaque steps, complicating efforts to trace transaction flows.
Risks
Criminals exploit unlicensed or underground gambling channels that lack oversight and licensing requirements, facilitating large-scale cash transactions without identification or transaction logs. By operating outside regulated frameworks, they can commingle illicit funds with legitimate bets, disguise criminal proceeds as 'winnings,' and bypass standard AML checks.
Indicators
Disproportionately consistent wins for specific bettors, deviating from expected statistical outcomes.
Bettors frequently placing large cash bets without a documented source of income to justify such gambling levels.
Use of multiple betting accounts by a single individual to place numerous small bets that collectively amount to large sums.
Large or frequent bets placed in unlicensed betting offices, especially when inconsistent with typical customer profiles.
Frequent large cash payouts in venues with typically low customer traffic.
Use of underground gambling networks or illegal sports betting by individuals or groups for large wagers or fund transfers outside regulated channels.
Regular transfer of funds between bettors and individuals or entities not directly associated with the gambling establishment.
Sudden spikes in betting activities during specific events or periods without corresponding increases in legitimate customer traffic.
Bettors who frequently cash out winnings using methods that circumvent standard record-keeping or ID requirements.
Presence of individuals or groups consistently winning large sums despite unfavorable odds.
Bettors providing incomplete or questionable identification details when required.
Lack of oversight or transaction monitoring in betting offices, enabling anonymous or unrecorded transactions.
Bettors present or purchase winning tickets or receipts from third parties without a verifiable purchase history.
High-value wagers financed through untraceable or underground credit arrangements, lacking formal documentation or repayment terms.
Data Sources
Gathers publicly accessible information from news outlets, social media, and community forums that may reference unlicensed or underground gambling venues.
Identifies local reporting on illicit activities, neighborhood complaints, or advertisements for unregulated gambling, supporting investigations into hidden or unregistered operators.
Captures comprehensive financial transactions across accounts, including timestamps, amounts, parties, and transaction types.
Reveals external flows of funds into or out of suspected gambling operations, highlighting unusual transfers or large cash movements tied to suspected underground venues.
Contains validated customer identities, addresses, beneficial ownership details, and overall risk assessments.
Helps confirm whether bettors are providing legitimate identification, detect incomplete or inconsistent ID details, and compare declared income against gambling activity levels to identify potential illicit fund placements.
Provides detailed records of gambling-related activities, including bet placements, winnings, payouts, and player identities.
Enables analysts to track unusual patterns in betting behavior, detect consistently high payouts, identify accounts engaging in structuring or frequent large transactions, and investigate suspected underground gambling operations.
Mitigations
For customers indicating significant gambling-related deposits, verify the legitimacy of purported venues and the provenance of winnings by analyzing deposit frequency and comparing stated wins to realistic market norms. By focusing on underground operations, this deeper scrutiny can uncover discrepancies in receipts or licenses, exposing the hidden reliance on unregulated gambling to launder funds.
Obtain evidence of legitimate gambling activities, such as official payout slips or documents from recognized operators, when customers claim substantial winnings. Scrutinize individuals who present frequent cash balances without supporting records, and reclassify them as higher-risk if they cannot demonstrate that their gambling proceeds originate from licensed venues.
Implement specialized scenario-based rules to detect repeated and large cash deposits that are ostensibly linked to gambling winnings from unlicensed operators. Flag unusual spikes or cyclical patterns that indicate potential layering. By focusing on typical underground gambling red flags—such as improbable winnings and nonexistent licensing documents—institutions can ensure timely escalation of suspicious activity for further review.
Subject large or unusual cash deposits identified as gambling proceeds to strict CTR thresholds, flagging those tied to unregulated or undocumented betting sources. By maintaining an auditable record of such transactions, institutions support deeper inquiry into potentially illicit cash movements associated with underground gambling.
Train frontline and compliance teams to identify red flags specific to unregulated gambling, such as suspicious betting receipts, repeated improbable winnings, and forged or purchased winning tickets. Emphasize prompt escalation workflows to compliance units when documentation appears questionable or links to known underground gambling operators emerge.
Require prompt SAR filing whenever customers claim frequent high-value winnings from unregulated gambling rings, submit questionable tickets purchased from genuine bettors, or show improbable win-loss ratios designed to mask illicit proceeds. This direct escalation measure confronts the technique’s reliance on minimal documentation and anonymous venues, ensuring authorities are alerted to potential underground gambling-based laundering.
Use publicly available data and external databases to confirm the legitimacy and licensing status of declared gambling venues. Investigate references to underground gambling networks and cross-check customer claims of substantial winnings against official records, escalating cases where purported operators cannot be validated.
Limit or block transactions for customers repeatedly linked to illegal gambling activities, and impose strict controls on large cash deposits without proof of legitimate wagers. If a customer fails to present evidence of licensing or verifiable gambling receipts, suspend related services to curtail the inflow of illicit funds from underground gambling channels.
- Terminate relationships with customers who are systematically laundering funds through underground gambling operations or consistently misrepresenting the source of gambling proceeds.
- This step prevents the institution from inadvertently facilitating ongoing criminal activity and is invoked when the AML risk remains unmanageable despite other controls.
Instruments
- Underground gambling rings issue chips instead of directly handling cash, allowing criminals to convert illicit currency into chips without raising suspicion.
- After minimal or staged betting, criminals redeem chips as gambling winnings, obscuring the origin of the funds.
- The informal nature of these venues typically lacks robust customer identification or transaction logging, enabling criminals to present their payouts as legitimate gains.
- Criminals introduce large amounts of illicit banknotes as buy-ins at underground gambling venues, which often have no identification requirements.
- They commingle these funds with legitimate bettors’ money, creating difficulty in isolating the original criminal proceeds.
- Ultimately, the criminals retrieve purported ‘winnings’ in cash, leaving little to no paper trail or formal documentation due to the unregulated nature of these venues.
Service & Products
- Criminals mirror legitimate betting frameworks by purchasing winning tickets from genuine bettors, masking the origins of illicit cash as legitimate gambling winnings.
- They forge or obtain receipts from licensed gambling operations and present them as genuine payouts, enabling large sums of illicit money to appear lawfully earned.
Actors
Organized crime groups protect or manage underground gambling venues by:
- Overseeing unlicensed operations that allow criminals to introduce large volumes of illicit cash as wagers.
- Controlling the environment to limit identification requirements, helping obscure the ownership and movement of funds.
This arrangement hinders financial institutions' ability to trace the flow of illicit proceeds, as they appear to be legitimate gambling revenues.
Legitimate bettors or gambling patrons can be exploited by:
- Selling their winning tickets at a premium, enabling criminals to present illicit funds as lawful gambling payouts.
- Unknowingly providing a legitimate facade for illicit buy-ins, making it harder to differentiate clean funds from criminal proceeds.
This tactic complicates financial institutions’ scrutiny of potential money laundering activities.
When underground gamblers require cross-border financing or cash movement, they rely on informal value transfer systems to:
- Obtain untraceable funds to place high-value wagers without raising suspicion.
- Bypass official banking channels, circumventing currency controls and due diligence processes.
These transactions effectively conceal the original source of capital from financial institutions.
Unregulated gambling operators provide hidden or clandestine venues where:
- Cash-intensive betting and payouts occur with minimal or nonexistent customer checks.
- Criminal proceeds can be commingled with legitimate bettors’ stakes, complicating efforts to detect suspicious transactions.
This lack of oversight allows illicit funds to enter the financial system disguised as gambling earnings.
References
AUSTRAC (Australian Transaction Reports and Analysis Centre) (2018). Money laundering and terrorism financing risk assessment: On-course bookmakers. Commonwealth of Australia. https://www.austrac.gov.au/business/how-comply-guidance-and-resources/guidance-resources/course-bookmakers-risk-assessment-2018
Langdale, J. (2023). Money laundering in Australian casinos in the context of transnational crime in the Asia-Pacific region. Journal of Money Laundering Control. https://www.emerald.com/insight/content/doi/10.1108/jmlc-09-2022-0136/full/html
Akartuna E.A., Johnson S.D., Thorton A.(2024). Motivating a standardised approach to financial intelligence: A typological scoping review of money laundering methods and trends. Journal of Experimental Criminology. https://link.springer.com/article/10.1007/s11292-024-09623-y