TL;DR
- The CMA named Meta Platforms, Inc., Facebook UK Limited and Facebook Ireland Limited as the businesses under investigation, and said other Meta group entities may also be covered.
- Meta first planned the revised terms for 30 October 2026, delayed them to 20 November 2026, then paused the rollout on 28 October 2026 pending a consultation with industry groups.
- The CMA's indicative timetable runs October 2026 to January 2027 for rapid initial information gathering; it published no end date, penalty or remedy.
- A separate CMA information request on the Meta One business subscription, and on small-business concerns about posting external links without paying a subscription fee, falls outside the Competition Act case.
The UK Competition and Markets Authority (CMA) opened a formal investigation on 30 October 2026 into whether Meta's commercial terms for businesses that use Facebook, Instagram and its other services break UK competition law. The case runs under Chapter II of the Competition Act 1998, which prohibits abuse of a dominant position. The CMA's worry is that the terms could let Meta collect content from the websites of businesses and publishers that use its services and use that content to build its own products, including AI features, without those businesses getting a say. The CMA stressed that no decision has been made on whether Meta has broken the law.
What the CMA announced on 30 October 2026
The announcement came as a press release from the UK Competition and Markets Authority, published alongside a new case page titled "Suspected abuse of a dominant position in relation to Meta's commercial terms". The press release says the investigation will examine concerns that Meta's terms and conditions unfairly harm news publishers and other content businesses. Its summary line goes further and names both groups: the CMA will look at whether Meta is imposing exploitative terms on publishers and advertisers.
According to the CMA, the terms in question "could allow" Meta to access content from the websites of businesses and publishers that use its services and then use it to develop and provide Meta's own products and services, with AI features named explicitly. The CMA says businesses would not get a choice on if or how their content is used.
The regulator's concern is framed in legal terms. Requiring news publishers and other content businesses to accept these terms could, in the CMA's words, amount to an unlawful imposition of unfair trading conditions on thousands of UK businesses that rely on Meta's services to reach customers and audiences.
The CMA said it chose its Competition Act 1998 powers so it could investigate urgently. It named two stakeholders whose concerns prompted the move: the News Media Association and Movement for an Open Web (MOW).
How Meta's terms change got here: 30 October, 20 November, then a pause
The timing of the investigation is tied to a rollout that kept moving. The CMA set out the sequence in its press release, and the order explains why a formal case was opened even though the new terms are not in force.
- Meta originally planned to bring in changes to its commercial terms on 30 October 2026.
- After what the CMA calls "active engagement" with the regulator, Meta announced the changes would be delayed until 20 November 2026.
- On 28 October 2026, Meta announced a pause to the rollout of the terms, pending a consultation with industry groups.
- On 30 October 2026, the date the changes were first due, the CMA opened its investigation.
The case page makes one detail clear that the press release only implies: the investigation covers whether Meta's existing commercial terms, or revisions to those terms, amount to an abuse. So the pause does not take the case off the table. The CMA is looking at the current wording as well as the proposed one.
The case at a glance
The table below collects the key facts the CMA published on its press release and case page. Every row is taken from those two documents.
| Item | What the CMA published |
|---|---|
| Opened | 30 October 2026, under Chapter II of the Competition Act 1998 |
| Businesses under investigation | Meta Platforms, Inc., Facebook UK Limited and Facebook Ireland Limited (other group entities may also be covered) |
| Indicative timetable | October 2026 to January 2027: rapid initial information gathering and engagement with Meta and third parties |
| Questions to answer | Does Meta hold a dominant position in one or more relevant UK markets, and if so, do its terms abuse it? |
| Possible outcomes | Close the case, or issue a statement of objections, hear the parties' response, then reach a final decision |
The CMA notes that the timetable dates are indicative and may change.
What the investigation has to prove
A Chapter II case has two stages, and the CMA's case page spells them out. First, the CMA has to establish whether Meta holds a dominant position in one or more relevant markets in the UK. Only if the answer is yes does the second question arise: whether the existing terms, or the revised ones, amount to an abuse of that position.
That order matters for anyone reading the headlines. The CMA has not yet said which market or markets it will define, and it has not said Meta is dominant in any of them. The CMA's own documents leave market definition open.
The legal threshold for opening a case is lower than the threshold for a finding. Under the Competition Act 1998, the CMA can launch an investigation where it has reasonable grounds to suspect an infringement. The notes to editors repeat that no assumptions should be made at this stage about whether competition law has been broken.
The CMA will now gather and assess evidence from Meta and from affected third parties. The case page invites anyone with relevant information to contact the case team directly.
Interim measures are on the table, but not announced
One line in the notes to editors matters to advertisers. The Competition Act 1998 allows the CMA to impose interim measures where temporary action is needed to prevent significant damage or to protect the public interest. The CMA mentioned this power in the announcement. It did not say it intends to use it, and it did not say it has started a process to do so.
A separate issue: Meta One and external links
The press release also flags a second, separate matter that marketers should not confuse with the main case. The CMA is seeking information from Meta about its new Meta One business subscription service. It is also looking at concerns raised by the Federation of Small Businesses about the possible impact on small businesses of posting external links on Facebook and Instagram without paying a subscription fee.
The CMA was explicit on scope. No decision has been taken on whether it will take formal action in this area, and these issues fall outside the Competition Act investigation launched on 30 October. For now, the Meta One question is an information request, not a case.
Why the CMA did not use its digital markets powers
The UK now has a digital markets competition regime (DMCR), which gives the CMA tailored powers over firms designated with strategic market status (SMS). Meta does not have that status. The CMA said its powers under the DMCR are limited for businesses that have not been designated, and that to date Meta has not been designated.
That explains the choice of the older Competition Act route. The CMA added that it keeps potential SMS candidates under active review, with the next set of proposals due to go to the CMA Board in spring 2027. It did not say whether Meta will be among them.
What the CMA did not say
Reading what is absent from the announcement is as useful as reading what is there. Based on the press release and the case page, the CMA did not:
- find that Meta is dominant, or that it has broken the law;
- say which product or market definitions it will use;
- give a date for a final decision, or any timetable beyond the initial phase to January 2027;
- state any penalty, fine level or remedy it might seek;
- say it will impose interim measures, only that the power exists;
- publish the text of the revised terms or name the specific documents involved;
- comment on how the terms apply to businesses outside the UK.
The CMA also did not publish a response from Meta in either document. Any reading of Meta's position needs to come from Meta, not from the regulator's announcement.
Why advertisers, not just publishers, should track this
The stakeholders the CMA named are a news trade body and an open-web group. But the CMA's own summary line refers to terms imposed "on publishers and advertisers", and the case concerns the commercial terms for businesses using Meta's platforms and services. Any business that advertises on Facebook or Instagram, or uses Meta's business tools, operates under Meta's commercial terms.
The substance of the concern is website content. The CMA describes terms that could let Meta collect content from the websites of businesses that use its services. For an advertiser, that means the website pages behind the ads.
The outcome could shape the final wording Meta brings back after its consultation with industry groups. If the CMA pushes for changes, or Meta revises the terms to address the concerns, the revised version is the one advertisers will eventually be asked to accept.
What this means for Thai marketers
This is a UK investigation under UK law, and the CMA said nothing about Thailand or any other market outside the UK. What follows is analysis, not something the source states.
Product descriptions, articles, guides and other site content are the kind of material an AI system can learn from or summarise, which is why this case also touches on generative engine optimisation and AI visibility. A sensible approach for Thai advertisers is to treat the current situation as a window to prepare rather than a reason to act:
- Note which Meta business terms your ad accounts and Business Manager have accepted, and keep a record of the dates.
- When Meta does bring back revised terms, read the sections on access to and use of website content before accepting, especially if your site carries original articles, guides or product content.
- Check whether any controls Meta offers over content use are on or off for your business, once the final terms say what those controls are.
- Keep watching the CMA case page, which the regulator says is where further information and updates will appear.
For most Thai advertisers, day-to-day campaign delivery on Facebook and Instagram is not affected by this announcement. The change that would matter is a change to the terms themselves, and that has not happened yet. If you want a second pair of eyes on how your Facebook Ads setup and wider social advertising would be affected when revised terms land, that review is easier to do calmly now than in the days before a deadline.
Frequently asked questions
Has the CMA found that Meta broke competition law?
No, the CMA has not found any breach. It said this is only the start of the investigation, that no decision has been made on whether Meta has broken the law, and that no assumption of infringement should be made at this stage.
Are Meta's revised commercial terms in force?
No, the revised terms are not in force according to the CMA's account. Meta first planned them for 30 October 2026, delayed them to 20 November 2026, and on 28 October 2026 paused the rollout pending a consultation with industry groups.
How long will the CMA investigation take?
The CMA has not given an end date. Its case page lists only an indicative first phase, October 2026 to January 2027, for rapid information gathering and engagement with Meta and third parties, and says those dates may change.
Does the UK case affect advertisers in Thailand?
The CMA did not say anything about Thailand or other countries. The investigation covers UK markets under UK law. Any effect on Thai advertisers would come indirectly, through whatever final wording Meta adopts for its terms, and that is not yet known.
Is the Meta One subscription part of the investigation?
No, the Meta One business subscription is outside the scope of the Competition Act investigation. The CMA is separately seeking information from Meta about it and about small-business concerns over posting external links without paying a subscription fee, and has not decided whether to take formal action.
The next public signal will come from the CMA case page or from Meta's consultation with industry groups. Until revised terms are published, there is nothing for advertisers to accept or reject, only a clear reason to read the next version carefully.
