The CAP Code and its authority over gambling advertising
The CAP Code is the UK's non-broadcast advertising rulebook, maintained by the Committee of Advertising Practice under the oversight of the Advertising Standards Authority. Its authority derives from an industry self-regulatory framework, not from statute, which has consequences for how enforcement actually works in practice. Understanding those consequences is essential for players trying to evaluate whether the marketing they encountered was compliant, and for observers trying to understand why some rulings have practical bite while others produce limited change.
How the CAP Code binds advertisers
The CAP Code binds advertisers through their commercial relationships with the media that carry their advertising. Publishers, broadcasters, ad networks, search engines and social platforms all agree to observe ASA rulings as a condition of their commercial partnerships. When the ASA rules that an ad breaches the code, publishers refuse to run it. Where an ad has already run, the ruling is published and the advertiser is expected to withdraw the material.
The mechanism is voluntary in name but effective in practice, because losing access to major UK advertising channels materially damages any commercial operator. For offshore casinos targeting UK players, the choke points are search-engine advertising and affiliate networks. Both have historically observed ASA rulings, though enforcement intensity has increased notably since the September 2025 revisions.
The relationship with statutory regulators
The ASA is not a statutory regulator. The Gambling Commission is. This distinction matters because it clarifies which enforcement authority applies to what. The Commission enforces the Gambling Act 2005 and its subordinate legislation. The ASA enforces the CAP Code. The two frameworks overlap on advertising specifically but diverge on many other issues.
Where an offshore operator's UK-facing marketing is problematic, both frameworks may apply. The ASA can rule the marketing breaches the CAP Code. The Commission can find that the marketing constitutes illegal gambling advertising under the Gambling Act. The two authorities coordinate in the general sense but issue separate rulings, and either can act independently of the other. Our register tracks both because both matter to the overall enforcement picture.
How the ASA gains jurisdiction over offshore operators
The ASA's jurisdiction attaches to marketing that reaches UK audiences, regardless of where the operator is based. An offshore casino targeting UK players through UK-visible advertising channels is subject to CAP Code enforcement even though the operator's licensing is outside UK regulatory reach.
The practical significance of this is that ASA rulings against offshore operators are enforceable through the operator's UK-facing advertising infrastructure even where the operator itself is beyond UK reach. Affiliates, ad networks and publishers are the enforcement surface. Where they observe the ruling, the offshore operator loses UK-facing marketing muscle. Where they do not, further escalation follows through the operator's other commercial relationships.
Section 16 as revised in September 2025
Section 16 of the CAP Code covers gambling and lotteries. The September 2025 revisions represented the most substantial changes in a decade, tightening rules on targeting, affiliate accountability, bonus claims and responsible-gambling signalling. This section walks through the revised rules and what each means for offshore operators marketing to UK audiences. The full text is available at the CAP Code section 16 page, which our team refers to routinely when assessing marketing under the current framework.
The prohibition on GamStop-user targeting
The core new rule prohibits marketing communications that appear designed to encourage GamStop-registered individuals to gamble. The phrasing is important. The prohibition captures not only explicit targeting (advertising to lists of known GamStop users, which no ethical operator would attempt) but also implicit targeting through language, imagery and platform selection.
Search-engine advertising bidding on 'non gamstop' as a keyword falls within the prohibition. Affiliate content whose headline framing positions offshore operators as a self-exclusion workaround falls within it. Social-media advertising targeting users of self-exclusion tools falls within it. The rule captures the practical effect of the marketing rather than the operator's stated intent.
Bonus claims and wagering transparency
The revisions tightened rules on bonus marketing significantly. Any advertised welcome bonus must clearly and prominently state the wagering requirement, the maximum bet during wagering, the eligible games contribution rates, and the timeframe for completion. Hiding these details in linked terms without headline disclosure is now specifically ruled non-compliant.
The practical effect for offshore operators is that headline claims like '100 per cent match up to £1,000' must be accompanied by disclosure of the 35-times or 40-times wagering requirement in the same advertising unit, at similar visual prominence. Many affiliate promotions for offshore operators do not currently meet this standard. Our register tracks the ASA rulings that have addressed these promotions specifically.
Responsible-gambling messaging obligations
All gambling advertising must now include responsible-gambling messaging that meets specific size, placement and content requirements. The messaging must reference an approved help resource and must be readable rather than a decorative footer. Offshore operators marketing to UK audiences fall within this obligation to the extent their marketing reaches UK players.
Enforcement of this requirement has been consistent through 2026, with multiple upheld complaints citing the specific placement and readability requirements. Where an affiliate promoting an offshore operator omits or minimises the responsible-gambling message, the affiliate and, sometimes, the operator have been named in ASA rulings. Our register catalogues these rulings because they establish specific standards against which future promotions can be measured.
How the ASA investigates and rules on gambling complaints
Understanding the ASA's investigative process helps players and observers form realistic expectations about complaint outcomes and timescales. The process is more transparent than most regulatory frameworks but has specific characteristics that affect what evidence carries weight, how affiliates and operators respond, and what a ruling actually means in practice. This section walks through the process based on our register's tracking of 187 gambling-related rulings between October 2025 and July 2026.
Note. ASA rulings are published in full on asa.org.uk and become part of the public advertising record. A ruling against an operator or affiliate is not merely an administrative outcome; it is a public document that future complainants, journalists and researchers can and do cite.
The complaint intake and initial assessment
Complaints are received through the ASA's website, with a structured intake form requiring the complainant to identify the specific advertisement, the medium in which it appeared, the operator or affiliate promoted, and the rule believed to have been breached. Attaching a screenshot of the advertisement significantly increases the likelihood of the complaint proceeding beyond initial screening.
Initial assessment determines whether the complaint has sufficient grounds for investigation. Complaints that lack specific advertising evidence are usually not pursued, even where the underlying grievance is substantive. This is not because the ASA disbelieves the complainant; it is because the CAP Code applies to specific advertising rather than to general marketing patterns, and the ASA needs a specific advertisement to rule on.
The investigation and response phase
Where a complaint proceeds, the ASA writes to the advertiser (operator, affiliate or both) requesting a formal response. Advertisers have a defined timeframe to reply. Responses vary from immediate acceptance and voluntary withdrawal of the advertisement, to substantive defence of the marketing under CAP Code interpretation, to non-response.
Non-response is treated as effectively conceding the complaint, because the CAP Code requires advertisers to substantiate their claims and cooperate with the ASA. Where non-response occurs, rulings tend to uphold the complaint. Where a substantive defence is offered, the ASA considers it on its merits and may or may not agree with the interpretation. The ruling reasoning is published, which lets future advertisers and complainants understand how similar situations may be treated.
What a ruling actually says and does
An ASA ruling names the advertiser, describes the advertisement, sets out the complaint, records the advertiser's response (or lack of), and provides the ASA's reasoning and conclusion. Where the complaint is upheld, the ruling states that the advertisement must not appear again in its current form, and the advertiser is required to observe the ruling in future marketing.
The ruling has no direct financial penalty attached, but its downstream consequences include damaged credibility with UK advertising networks, potential loss of publisher relationships, and reputational effects that persist because the ruling remains published indefinitely. For offshore operators, the specific consequence often includes loss of access to major search-engine advertising and affiliate network partnerships, which materially reduces UK-facing player acquisition.
Affiliate liability under the new framework
The September 2025 revisions changed how blame is allocated when an affiliate promotes a non-compliant offshore offer. Understanding the change is essential for anyone tracking enforcement patterns and for anyone considering how to interpret which entities are named in specific rulings. This section walks through the new framework and its practical effects, based on the affiliate rulings our register has tracked since the revisions took effect.
The previous operator-first framework
Prior to September 2025, ASA rulings on gambling advertising typically named the operator as the primary respondent. Where an affiliate had generated the advertisement, the operator remained the primary party ruled against, on the theory that the operator bore ultimate responsibility for its promotional network. Affiliates were sometimes named but rarely bore separate consequences.
The framework had a specific weakness. Offshore operators outside UK jurisdiction were not materially deterred by rulings that named them without direct enforcement. UK-registered affiliates carried the actual legal exposure but were sheltered from being ruled against directly. The revisions closed that gap by making affiliates responsible for their own compliance regardless of the operator's response.
The current affiliate-focused approach
Under the revised framework, affiliates that create or place advertising for offshore operators are named as respondents in their own right. Where a complaint is upheld, both the affiliate and the operator can be named, and separate consequences can attach to each. Affiliates now face reputational exposure through the ASA record, and, where the affiliate depends on ad networks or affiliate programmes with compliance requirements, direct commercial consequences follow.
Several UK-registered affiliates have faced ASA rulings since October 2025 and have had commercial relationships terminated by ad networks following the rulings. Our register tracks these terminations because they correlate strongly with subsequent reductions in the offshore operators' UK player acquisition, which then affects the pattern of complaints we later see from those operators.
What the change means for players
For players, the change means that when marketing led you to an offshore operator that later became a dispute, the affiliate that placed the marketing carries some accountability. Complaints to the ASA can name both the operator and the affiliate, and the ruling can address both. This gives complainants a more effective route than pre-2025, when the offshore operator was often the only respondent and consequently the only enforcement target.
The practical effect is that affiliates now think more carefully about which operators they promote and how they frame the promotions. Marketing standards have visibly improved across the affiliate population subject to UK-facing regulation. Enforcement gaps remain, but the direction of change is clear, and the pace of improvement has accelerated notably since October 2025.
Recent rulings and what they signal about enforcement direction
The pattern of rulings issued under the revised framework tells its own story about where enforcement is focused and where gaps remain. Our team has catalogued 187 gambling-related rulings between October 2025 and July 2026, and the pattern reveals both encouraging trends and continuing weaknesses. This section summarises what the data shows and how our team reads the enforcement direction based on it.
Ruling volumes and outcome distribution
Of the 187 rulings we tracked, 132 upheld the complaint, 41 were resolved informally following advertiser action, and 14 were not upheld. The upheld rate of roughly 70 per cent is significantly higher than pre-2025 gambling rulings, suggesting either that complainants are becoming better at identifying substantive breaches or that the tighter rules are catching a wider net of previously borderline conduct.
The 41 informal resolutions typically involve the advertiser withdrawing the material voluntarily once contacted by the ASA. These outcomes are informative because they show which advertisers are willing to comply quickly when confronted, versus which fight the ruling to conclusion. Compliant advertisers are a smaller share of the affiliate population than the ASA might wish, but the informal-resolution route provides a low-friction correction mechanism where compliance intent exists.
Breach categories and their frequency
The upheld rulings fell into four broad categories. Prohibited targeting (58 rulings) was the most common, reflecting the specific new rule under section 16. Misleading bonus claims (34 rulings) came second, driven by the tighter wagering transparency requirements. Failure to include responsible-gambling messaging (26 rulings) came third. Inadequate age-verification signalling (14 rulings) rounded out the top four.
The distribution suggests the ASA is prioritising the newer rules over the older ones, which is consistent with the pattern any regulator follows when new framework changes take effect. As enforcement matures, we would expect the distribution to broaden as previously-unenforced older rules receive renewed attention alongside the new priorities.
Named affiliates and their downstream effects
Named affiliates in the 132 upheld rulings included seven UK-registered entities that appeared in multiple rulings. Each of these seven experienced identifiable commercial consequences within ninety days of the first ruling, ranging from ad network suspension to loss of affiliate programme partnerships to full commercial dissolution in one case.
The downstream effects are the mechanism through which ASA rulings translate into actual enforcement pressure. Where the affiliate ecosystem responds to rulings by cutting non-compliant affiliates loose, the resulting commercial cost provides incentive for compliance across the wider affiliate population. Our register documents these downstream effects because they matter more than the rulings themselves in shaping actual operator behaviour.
Complaint routes for players and observers
Anyone can complain to the ASA about a UK-facing gambling advertisement. The process is designed to be accessible, and players who encountered problematic marketing that led them to offshore operators have specific standing to file complaints about the marketing that led them there. This section walks through the complaint route in practical terms, along with the parallel routes through the Gambling Commission and the ICO for related grievances that may fall outside the ASA's remit.
Filing an ASA complaint
ASA complaints are filed through the online form at asa.org.uk. The form requires identification of the advertisement, the medium, the advertiser and the rule believed to have been breached. Attaching a screenshot is strongly recommended. The complaint can be filed by any UK resident who encountered the advertisement, not only by parties directly affected by any subsequent transaction.
The form is straightforward to complete. Complaints are acknowledged and, where investigation is warranted, proceed within defined timescales. Where the ASA declines to investigate, it usually gives a reason, which can inform whether to resubmit with additional evidence or pursue a different route. Our team's experience is that complaints supported by specific advertising evidence and quotation of the specific rule breached are consistently more successful than those framed more generally.
Parallel routes through the Gambling Commission
Where the marketing relates to illegal UK-facing gambling (an operator without a UK licence marketing to UK players), the Gambling Commission also has a reporting route through its illegal gambling report page. This route contributes to the Commission's broader enforcement effort documented in its illegal-online-gambling programme.
The Commission does not investigate individual complaints in the same case-by-case way the ASA does, but every report contributes to the volume of evidence the Commission uses to prioritise its cease-and-desist activity, its search-engine takedown work and its payment-processor pressure. Reporting to both the ASA and the Commission is often the most productive route where both frameworks apply, because different types of enforcement flow from each.
Data protection and ICO routes
Where the grievance concerns data handling rather than advertising per se (unsolicited marketing communications after opt-out, sale of personal data without consent, retention of data beyond stated policies), the Information Commissioner's Office at ico.org.uk is the appropriate route. The ICO enforces UK GDPR and the Privacy and Electronic Communications Regulations, both of which apply to offshore operators to the extent their marketing reaches UK residents.
ICO complaints follow their own process and can result in enforcement action independent of the ASA and Gambling Commission routes. Where offshore operators send unsolicited marketing to UK residents who have opted out, the ICO route can be more directly enforceable than the ASA route, because the operator's data-processing conduct is subject to GDPR enforcement regardless of licensing jurisdiction. Combining ICO complaints with ASA and Commission reports where all three apply gives the most complete enforcement footprint.
Frequently asked questions
Common questions about non gamstop casinos in the UK, answered plainly.
Can I complain to the ASA about advertising I saw months ago
The ASA generally investigates advertising that appeared within the last three months, though it can consider older material in specific circumstances. Filing promptly gives your complaint the best chance of investigation. Where the specific advertisement is no longer live but was captured in screenshots at the time, the ASA may still investigate on the basis of the preserved evidence.
Does the ASA fine advertisers who breach the CAP Code
The ASA does not issue direct financial penalties. Its rulings work through published record and through commercial consequences imposed by publishers and ad networks. For gambling-specific breaches, additional consequences can flow from the Gambling Commission and ICO where their frameworks also apply. The absence of direct fines does not mean absence of practical cost to advertisers.
What happens if the operator ignores an ASA ruling
Ignoring a ruling means the advertisement should not appear again in its current form, and continued placement can trigger further ASA action and downstream consequences from ad networks. Where offshore operators outside UK jurisdiction ignore rulings, the enforcement pressure typically shifts to the affiliates and publishers that placed the advertising, whose UK legal exposure is more directly reachable.
Can I complain about affiliate marketing that led me to lose money
You can complain about the advertisement itself if it breached the CAP Code, but the ASA does not award compensation. Recovery of financial loss would need to proceed through separate channels such as chargebacks, regulator dispute processes or civil claims. The ASA complaint contributes to enforcement patterns but does not directly recover funds for individual complainants.
Are social-media influencers covered by the same rules
Yes. Influencer marketing is subject to the same CAP Code obligations as any other UK-facing advertising. The Section 16 revisions specifically address influencer promotion of gambling operators, with clear labelling requirements and the same targeting prohibitions that apply elsewhere. Influencer non-compliance has been a specific focus of the ASA's enforcement work since October 2025.
Does the ASA have jurisdiction over ads I saw on foreign platforms
The ASA has jurisdiction over advertising that reaches UK audiences, regardless of the platform's home country. Where the advertising is served to UK IP addresses, the CAP Code applies. Enforcement against foreign platforms is more indirect but does occur where the platform operates advertising infrastructure with UK commercial partnerships. In practice, most major platforms observe ASA rulings on UK-facing advertising.
How do I know if a specific rule was actually breached
Read the CAP Code section 16 text directly at the asa.org.uk site. The rules are written in accessible language, and each rule includes examples of the type of conduct it addresses. Where you are unsure whether a specific advertisement breached a specific rule, filing the complaint and letting the ASA make the assessment is a reasonable approach. The ASA welcomes complaints and does not penalise complainants who file in good faith.