Intro

Meta has taken Ofcom to London's High Court in a judicial review challenge over how the UK regulator calculates fees and penalties under the Online Safety Act 2023. The dispute centres on a single, consequential question: should fines and levies be pegged to a company's global revenue, or only to the revenue generated from UK-regulated services? For a company that reported approximately $201 billion in worldwide revenue last year, the answer could be worth tens of billions of dollars.

Breakdown

The Online Safety Act 2023 empowers Ofcom to fine regulated platforms up to 10% of their "qualifying worldwide revenue" (QWR), or £18 million - whichever is higher. The same QWR metric underpins the annual fee regime introduced last September, which captures companies whose UK user-generated content, search, or adult-content services generate more than £250 million annually.

Meta filed for judicial review, arguing that Ofcom's methodology is disproportionate and reaches further than Parliament intended. The company's legal counsel, Monica Carss-Frisk KC, described the QWR approach as "troubling", noting that it would concentrate the regulatory cost burden on a handful of large global platforms, even though the Act applies to a much broader range of internet services. A substantive hearing has been listed for 13 and 14 October 2026.

Importantly, Meta is not challenging the legality of the Online Safety Act itself, only Ofcom's interpretation of how revenue should be calculated within it. A Meta spokesperson stated: the company remains committed to cooperating constructively with Ofcom, but believes the methodology for calculating fees and potential fines is disproportionate, and that charges should reflect the services being regulated in the countries where they are being regulated.

Commercial Stakes/Business Case

The financial exposure is considerable. Under the current QWR approach, Ofcom could theoretically issue a penalty against Meta of around $20 billion - a figure that would dwarf any fine in UK corporate history. Even the annual fee levy, set at between 0.02% and 0.03% of QWR, is significant in absolute terms at Meta's scale.

The case also has wider industry implications. Meta, Google, Microsoft and X all raised formal objections to the fee regime during Ofcom's consultation period in 2025, suggesting this challenge is not a solitary dispute but a test case for how the entire tech sector will be taxed under the Online Safety framework. A Meta victory would likely reduce the regulatory cost base for all major platforms operating in the UK; an Ofcom victory would entrench the global-revenue model as a fixture of the UK's digital enforcement toolkit. This could potentially reinforce similar approaches under the EU's GDPR and Digital Services Act.

Legal Impact

The challenge is framed in public-law terms. Meta's argument is not that QWR is an unlawful concept, but that Ofcom's application of it is disproportionate within the meaning of established judicial review principles. The key legal points in dispute include:

  • Scope of qualifying worldwide revenue: Meta argues that QWR, as used by Ofcom, is not pegged to any revenue generated by a specific UK-regulated service; it captures the entirety of a platform's global turnover the moment any service is made available to British users.
  • Proportionality under public law: The challenge invokes the principle that regulatory penalties must be proportionate to the harm or cost being addressed. Meta contends that applying a global revenue multiplier to a UK-only regulatory regime fails that test.
  • Parliamentary intent: Carss-Frisk KC argues that Ofcom's interpretation exceeds what Parliament intended when it enacted the 2023 Act, a framing that echoes Meta's parallel proportionality challenge against the EU Commission's interpretation of the Digital Markets Act.
  • Refund mechanics: Ofcom's barrister, Javan Herberg, confirmed before the High Court that the regulator intends to issue fee invoices in Q3 2026, most likely in September, before any substantive judgment. If Meta ultimately succeeds, Ofcom would be required to issue refunds.

Ofcom has defended its position robustly, stating that the fee framework was set out in the legislation Parliament passed and that it consulted extensively before finalising the methodology. The regulator called Meta's challenge "disappointing."

Future Outlook

A substantive ruling is unlikely before autumn 2026, by which point Ofcom will already have invoiced platforms under the disputed methodology. The outcome will be closely watched across the tech industry and by regulators internationally.

If Ofcom prevails, the global-revenue model will be embedded in UK enforcement and may embolden regulators elsewhere to adopt similarly expansive fee structures. If Meta succeeds, it would force a recalibration of how digital regulation is funded in the UK and potentially weaken the leverage that QWR-based penalties provide.

Either way, the case marks a significant escalation in the relationship between Silicon Valley and UK regulation. The Online Safety Act was always intended to have teeth but what remains unresolved is how sharply they are allowed to bite.