UK ASA Disclosure Rules for YouTube Sponsorships

If your sponsored videos reach UK viewers, UK advertising rules apply alongside YouTube's platform requirements and any rules from the creator's home country. The UK's system centers on the Advertising Standards Authority (ASA) and the CAP Code, and its core demand is simple to state: advertising must be obviously identifiable as advertising. This article is general information, not legal advice; YouTube Sponsorship Disclosure Rules: What Brands Should Require covers the YouTube and US layers.

The baseline: obviously identifiable

Section 2 of the CAP Code requires that marketing communications are obviously identifiable as such. The ASA's guidance on recognising ads in social media explains why influencer content gets special attention: it closely resembles the editorial content around it, and the ASA's research found that people struggle to tell the two apart, especially when a creator uses the same style for both. The guidance puts the responsibility on brands and influencers, not on the viewer, to make advertising obvious.

Practical implications the guidance spells out:

• The label's meaning must be clear to the audience seeing it.
• Platform differences matter, so a disclosure approach should fit how YouTube content is actually consumed.
• Do not rely on the creator's bio or previous posts to disclose a specific video.

What counts as advertising

The ASA and CMA's joint Influencers' guide to making clear that ads are ads covers when content needs to be disclosed, what counts as a payment, incentive, or commercial relationship, and how affiliate marketing fits in. The current edition, published in October 2026, was updated for the Digital Markets, Competition and Consumers Act (DMCC Act) and describes the Competition and Markets Authority's enforcement powers and penalties.

The point sponsors should take: disclosure is not limited to cash fees. Gifting, free trips, affiliate commissions, and similar arrangements can all make content advertising under the UK approach.

What to write into UK-facing campaigns

For any campaign with meaningful UK reach, agree these points in the contract:

• A prominent disclosure in the video itself, using a label whose meaning is unambiguous to viewers, for example "Ad".
• YouTube's paid promotion declaration as well, since platform and legal requirements are separate.
• The same standard for every related deliverable: Shorts cutdowns, community posts, pinned comments, and the creator's cross-posts.
• Who checks the published video and how quickly missing disclosure gets fixed.

How this differs from the US layer

The FTC's endorsement guides focus on material connections being clearly disclosed; the UK's CAP Code frames it as ads being obviously identifiable, with the ASA's guidance emphasizing that the label itself must be understood. The two overlap heavily in practice but are enforced by different bodies with different remedies, and the CMA's powers under the DMCC Act add direct penalties on the UK side. For campaigns spanning both markets, write terms that satisfy the stricter reading rather than maintaining two standards.

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Frequently asked questions

Does YouTube's paid promotion label satisfy the ASA?

Not automatically. The ASA's guidance stresses that advertising must be obviously identifiable with a label whose meaning is clear. Treat the platform declaration as one layer and agree an explicit, prominent in-video disclosure as well.

Do these rules apply if the creator is not in the UK?

The ASA regulates advertising directed at UK consumers. If a campaign targets or significantly reaches UK viewers, plan as though the CAP Code applies, and get advice for your specific situation.

What happens when disclosure is missing?

The ASA can investigate and publish rulings, and the 2026 edition of the influencer guide describes CMA enforcement powers and penalties under the DMCC Act. The practical fix for brands is contractual: require checking and fast correction in the agreement.