The reference regime
Britain regulates affiliates through the operator, and it did so first and most visibly. The Gambling Commission's licence conditions make an operator responsible for marketing carried out on its behalf by third parties; the advertising codes apply to that marketing regardless of who produced it; and a decade of published enforcement has told operators exactly what the Commission expects them to do about affiliates. An affiliate serving British customers, or hoping to be paid by a British-licensed operator, works inside that framework whether or not it has read it.
The licence conditions
The Licence Conditions and Codes of Practice require a licensee to ensure that any third party carrying out marketing on its behalf complies with the advertising codes and with the Commission's own marketing requirements, and to take responsibility for that compliance. In practice the Commission expects an operator to:
Hold a written contract with every affiliate that sets out the compliance obligations and the operator's right to terminate for breach.
Approve affiliate marketing before it is published, or operate a process that achieves the same control.
Monitor affiliate marketing on an ongoing basis, with evidence that it does.
Know who its affiliates are, including sub-affiliates, and be able to produce the list.
Terminate affiliates that breach the rules and, where the breach is serious, report it.
The Commission's enforcement decisions have made clear that "we told the affiliate the rules" is not compliance; "we checked, found the breach and acted" is. Several large operators, after penalties that cited affiliate failures among others, reduced their affiliate programmes sharply and moved to whitelisting only affiliates that could demonstrate a compliance process.
The advertising codes
The content rules come from the CAP Code (non-broadcast, which covers websites, social and email) and the BCAP Code (broadcast), administered by the Advertising Standards Authority, with a gambling section that the Commission's conditions incorporate. The recurring rules for affiliate content:
Significant conditions. Any offer must show its significant terms (qualifying deposit, wagering requirements, time limits, maximum win, game restrictions) with the offer, at the same prominence. The commonest ASA ruling against affiliate pages is a bonus without its conditions.
No appeal to under-18s. Since 2022 the test is whether content has "strong appeal" to children, which restricts the use of sports personalities, characters and imagery with youth appeal. ASA rulings have applied the test to influencer and social content, and the Commission has extended similar thinking to age-appropriate design.
No irresponsible messaging. No suggestion that gambling solves financial or personal problems, enhances status or is a route to success; no trivialising; no pressure to gamble; no encouragement to chase losses.
Responsible gambling and age. The industry's standards require an 18-plus statement and safer-gambling messaging on advertising; affiliate pages that omit them fail the operator's audit.
Not misleading. Consumer law and the code both prohibit claims that cannot be substantiated: "best odds", "fastest withdrawals", "most trusted", unless they are.
Disclosure
An affiliate review site in Britain must make clear that it is paid by the operators it reviews. The ASA treats undisclosed affiliate content as an advertisement that is not obviously identifiable, and consumer-protection law treats a paid recommendation presented as independent as a misleading practice. The disclosure belongs near the content, not in a footer, and the affiliates that were caught without it in the early enforcement wave learned the cost.
The self-exclusion pages
The most damaging affiliate practice in Britain, and the one that regulators cite most, is the page built around "casinos not on GAMSTOP", the national self-exclusion scheme. Such pages exist to send self-excluded people to unlicensed operators. They are illegal promotion of unlicensed gambling under the Gambling Act, they target the most vulnerable audience the industry has, and a licensed operator found to be working with an affiliate that runs one will terminate the affiliate the same day. An affiliate with any ambition to work with British-licensed operators does not publish them, and the search-ranking operations that do are the affiliate industry's black market.
The 2023 White Paper and after
The reforms in progress since the 2023 White Paper reach affiliates in several places. Bonus and promotion rules restrict the structure of offers, including wagering requirements, which narrows what an affiliate can promote and requires existing content to be updated. Direct marketing consent rules from 2025 require opt-in by product and channel, which applies to an affiliate's own email marketing. The stake limits and slot design rules change what game content may show. And the government's commitment to ban sponsorship of British sport by unlicensed operators, with the industry's push to extend the ban to digital advertising, is aimed partly at the affiliate and social channels through which unlicensed brands reach British customers. The UK Gambling Regulation Explained guide sets out the wider programme.
What the Commission has said about affiliates directly
Beyond the conditions, the Commission has published guidance and made statements that affiliates should read as instructions. It has said that operators should not work with affiliates that also promote unlicensed operators to British customers. It has said that affiliate marketing must meet the same standard as the operator's own. It has treated social media and influencer promotion as advertising subject to the codes, and the ASA has ruled against influencer gambling content on strong-appeal and disclosure grounds repeatedly. And it has used its illegal-market work to identify and pursue affiliate sites promoting unlicensed operators, including through requests to search engines and hosting providers.
What a British-facing affiliate does
An affiliate that wants to be paid by British-licensed operators runs a British compliance process regardless of where it is based:
A page template carrying the 18-plus statement, safer-gambling messaging and disclosure automatically.
A bonus and terms database that renders significant conditions with every offer and removes offers when they end.
An approval workflow that sends new and changed pages to the operator where the agreement requires it, and records the approval.
A prohibited-content list that excludes self-exclusion circumvention, unlicensed operators, guaranteed-win claims and strong-appeal imagery.
A record of every operator relationship and every sub-affiliate, available on request.
Monitoring of its own pages and channels against the codes, with a log of findings and fixes, because that log is what an operator's audit asks for.
A British-facing affiliate does not need a licence from the Commission. It needs to behave as though the Commission could read any page tomorrow, because the operator paying it has to assume exactly that.
What to take from this lesson
Britain regulates affiliates through the operator's licence: contract, approve, monitor, identify, terminate. The CAP Code's gambling rules apply to affiliate content directly, above all significant conditions with every offer, no strong appeal to children, no irresponsible messaging and disclosure of the commercial relationship. Self-exclusion circumvention pages are the industry's black market and end relationships instantly. The White Paper reforms narrow what can be promoted and how, and the Commission has said plainly that operators should not work with affiliates that promote unlicensed gambling to British customers.