What the CAP and ASA Codes Require of Gambling Advertising in the UK

Two separate rulebooks, one advert

UK gambling marketing sits under two overlapping systems. The Gambling Commission’s Licence Conditions and Codes of Practice (LCCP) set social responsibility requirements tied to an operator’s licence. Separately, the Committee of Advertising Practice (CAP) writes the UK Advertising Codes, and the Advertising Standards Authority (ASA) enforces them across all media, including broadcast (BCAP-derived rules now folded into the CAP structure), print, out-of-home, email and social media. An operator can be fully licensed and still have an advert banned by the ASA for breaching the Code. The two systems reinforce each other but are legally distinct, and affiliates who promote gambling brands are bound by the advertising rules too, even though they do not hold a Gambling Commission licence themselves.

The core principles the Code applies to gambling ads

The CAP Code devotes a specific section to gambling, sitting alongside general rules on misleading claims, harm and offence, and children. The recurring themes are:

• Social responsibility. Ads must not exploit vulnerabilities, portray gambling as a solution to financial or social problems, or suggest it can improve a person’s standing, self-esteem or attractiveness.
• Honesty and clarity on terms. Promotions, bonuses and free bets must not mislead on availability, value or the conditions attached. Significant conditions need to be clear and not buried.
• Protection of children and young people. Ads must not be directed at under-18s, must not feature anyone who is or looks under-18 (with narrow exceptions for legitimate sportspeople in appropriate context), and must not appear in media where a disproportionate number of the audience is under 18.
• No suggestion gambling enhances qualities like success, attractiveness or confidence, and no depiction of gambling as a way out of financial difficulty.
• Responsible messaging. Ads should not encourage excessive or irresponsible play, for example by urging people to chase losses or bet beyond their means.

These sit within the broader Code requirements that ads must not cause serious or widespread offence and must be prepared with a sense of responsibility to consumers and society.

Where affiliates and influencers come in

Marketing-affiliates operations are directly caught by these rules. If content is a paid-for or reciprocal promotion of a gambling product, whether a comparison site, a tipster blog, a social media post or a streamer’s stream overlay, it is very likely to be an ad for CAP Code purposes and must be obviously identifiable as such. The ASA has been active on affiliate and influencer marketing generally, and gambling has been a priority area because of the added social responsibility rules. Practical implications for affiliate content include:

• Clear, upfront labelling that content is an ad (not buried in a bio or a hashtag string at the end of a long caption).
• No portrayal of gambling as glamorous, a career, or a guaranteed route to profit.
• Odds, bonus terms and “free bet” claims must be accurate and not overstate value.
• Any influencer or affiliate audience skewing towards under-18s is a serious problem, regardless of the operator’s own targeting controls.

Operators remain responsible for their affiliates’ compliance in practice, because a poorly controlled affiliate programme reflects on the brand and can also raise concerns for the Gambling Commission about the adequacy of an operator’s compliance and due diligence arrangements.

How complaints and enforcement actually work

The ASA is the independent body that administers the Code day to day. Anyone can complain about an ad, including consumers, campaign groups or competitors. The ASA investigates, and if it upholds a complaint it will typically require the ad to be withdrawn or amended and publish its ruling. Ad rulings are public and searchable, which matters for reputational risk even where no direct penalty follows.

For persistent or serious non-compliance the ASA can refer matters on, including to Ofcom for broadcast issues, or apply sanctions such as pre-vetting requirements. Critically, gambling advertising failures can also feed back into regulatory risk with the Gambling Commission, because the LCCP requires operators to conduct advertising in a socially responsible way and to comply with relevant codes. A pattern of ASA rulings against an operator’s marketing can be treated as evidence relevant to a Commission compliance assessment or licence review, so the two systems are not as separate in consequence as they are in law.

Practical takeaways for the trade

For anyone working in gambling marketing, the safest approach is to treat the CAP gambling rules as a baseline compliance requirement, not a creative constraint to work around. That means building sign-off processes that check social responsibility framing, verifying bonus terms are accurate before publication, keeping clear records of audience data to demonstrate under-18 exposure was controlled, and ensuring every affiliate and influencer relationship carries clear, unavoidable ad disclosure. Because the specific wording of the Code, guidance notes and enforcement priorities are updated periodically, always check the current CAP Code and ASA rulings database before finalising a campaign, rather than relying on a summary written at any single point in time.

The direction of UK regulation has consistently been toward tighter scrutiny of gambling marketing, not looser, so treating the advertising codes as a moving target that needs regular reference to the primary source is the only reliable way to stay compliant.