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Publication 15 Jan 2026 · United Kingdom

Advertising Standards Authority

Regulation nation?

3 min read
The Advertising Standards Authority (ASA) is the UK’s independent advertising regulator.

The ASA: Five things to watch

  • AI and advertising    
  • Greenwashing    
  • Vulnerable consumers    
  • Food for thought    
  • Consumer reviews

The ASA regulates both B2C and B2B advertising in accordance with the UK Advertising Codes of Practice, which are written by its sister organisation, the Committee of Advertising Practice (CAP). 

Non-broadcast advertising is dealt with on a self-regulatory basis, with advertisers funding the ASA through a voluntary arm’s-length levy and participating in CAP. The system for broadcast advertising (including on-demand programme services and video-sharing platforms) is co-regulatory, with Ofcom delegating day-to-day regulatory responsibility to the ASA.

While the ASA polices most UK advertising, there are some notable omissions from its remit, including product-related claims in non-broadcast advertisements for financial services (dealt with by the FCA), television and radio programme sponsorship (dealt with by Ofcom) and political advertising.

The ASA is becoming increasingly proactive, relying less on complaints from the public (or from an advertiser’s competitors) to trigger investigations. Key to this is its deployment of AI – in particular, its Active Ad Monitoring system, which uses AI to proactively search for online adverts that may break the rules. In 2024 it used the system to scan 28 million ads, and expected to scan 50 million in 2025. This builds massively on its more traditional monitoring, which has tended to focus on sectors with a poor record of compliance and certain high-profile sectors such as health and beauty.


Powers

There are many thousands of ASA investigations every year. In 2024 the ASA and CAP secured the amendment or withdrawal of nearly 34,000 adverts. In most cases complaints are settled without a formal investigation. A significant amount of its work is also delivering a range of advice, guidance and training to businesses.

The ASA cannot impose fines, which has led to a view of it in some quarters as a ‘soft’ regulator. The truth is rather more complicated. It has considerable powers to ‘name and shame’. Where necessary, it is highly effective at working with both traditional and online media to block adverts. In cases of serious non-compliance it can look to Ofcom as a ‘legal backstop’ (or Trading Standards, on the non-broadcast side). And with the entry into force of the Digital Markets, Competition and Consumers Act 2024 (DMCCA), an adverse ruling from the ASA may now be the first step on the road to enforcement by the Competition and Markets Authority, which can result in fines of up to 10% of groupwide annual turnover.


Five things to watch

AI and advertising

AI makes it easier to manipulate images and other content in ways that may mislead consumers, as well enabling ads to be created much more quickly – potentially without human involvement or verification. The CAP Codes do not contain specific rules on AI, and the ASA’s view at the moment is that the use of AI is not generating unique issues that require either the codes or its approach to be modified. However, this could change. Currently the ASA advises advertisers to exercise caution around deepfakes and other potentially misleading uses of AI, and to remember that whether an ad is deemed misleading will always come down to its specific content and context and the likely audience interpretation. The ASA has also warned advertisers who use ‘AI’ as a marketing term not to exaggerate the abilities of AI-related products, and is closely watching the marketing of AI-powered services such as online mental health support and certain essay writing tools and chatbots, where it believes there is potential for ads to be misleading, irresponsible or harmful.

Greenwashing

The ASA’s latest annual report suggests that businesses are getting better at evidencing green claims in their advertising, with big brands in particular being largely compliant. This has been an area of focus for the ASA, which has frequently reminded advertisers that simply asserting that a product or service is ‘green’ or ‘sustainable’ without further explanation is not compliant. But the ASA remains concerned about green claims – such as ads that promote green initiatives without providing context about the wider framework of a brand’s overall environmental impact.

Vulnerable consumers

The DMCCA enables regulators to consider a consumer’s circumstances when evaluating unfair commercial practices. This looks set to reinforce the ASA’s long-standing priority of protecting vulnerable consumers, encouraging it to consider whether a broader range of ads could be held to have a misleading impact on consumers with a vulnerability. The ASA has also been expanding its understanding of vulnerability – it now considers not only traditional ‘inherent’ vulnerabilities such as age or long-term disability, but also situational or temporary vulnerabilities such as grief or stress.

Food for thought

The long-delayed bans on advertising less healthy food and drinks on TV between 5:30am and 9:00pm, and by way of paid-for online ads, have finally come into force. Following confusion about whether brand advertising for brands with less healthy products would be affected if individual less healthy products were not themselves being advertised, the government legislated to exempt brand advertising from the restrictions. The ASA has published guidance to advertisers on how to comply with the new rules. Food and beverage businesses should consider the new rules carefully when developing new advertising, and watch out for the ASA’s approach to enforcement during 2026.

Consumer reviews

The DMCCA introduces a ban on creating or publishing fake consumer reviews and consumer reviews that have been incentivised without revealing that fact. There is also a ban on publishing reviews in a misleading way, such as by suppressing negative reviews, and on publishing misleading information derived from reviews, such as an average star rating based on fake reviews. Competition and Markets Authority guidance is that businesses must take reasonable and proportionate steps to prevent/remove banned content to comply with the law. This should include having a published policy banning fake reviews and setting out the advertiser’s approach to incentivised reviews and consumer review information; completing a risk assessment and updating it regularly; and having processes in place to investigate and detect banned reviews and false or misleading consumer review information, and to take action to remove them and reduce the risk of them reappearing.

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