Meta, the parent company of Facebook and Instagram, is mounting a legal challenge against the UK’s communications regulator Ofcom over how it calculates fees and potential fines under the Online Safety Act, marking one of the most significant corporate disputes yet over Britain’s expanded internet regulation framework.

At the centre of the case is a technical but financially consequential question: whether regulatory fees and penalties should be based on a company’s global revenue or only on revenue generated from services operating in the UK. Ofcom’s current system uses what it defines as “qualifying worldwide revenue,” meaning a company’s total global earnings are used as the baseline for calculating both annual regulatory fees and potential fines for non-compliance.

Under the Online Safety Act, major platforms are required to fund the regulator’s enforcement costs while also complying with stricter obligations to reduce illegal and harmful content.

The law also empowers Ofcom to impose fines of up to ten percent of a company’s global revenue in cases of serious breaches, giving the revenue definition immediate and large-scale financial implications.

Meta argues that this structure is disproportionate and legally flawed.

The company’s position is that costs and penalties should reflect the revenues generated by the specific services being regulated within the UK, rather than a corporation’s worldwide earnings across multiple products and markets.

It contends that Ofcom’s approach risks inflating penalties far beyond what is proportionate to activity inside Britain and could expose companies to fines that exceed historical UK regulatory levels.

Ofcom defends its methodology as a straightforward interpretation of the legislation passed in 2023. The regulator maintains that the law explicitly ties both fees and fines to qualifying worldwide revenue, and it has stated it will robustly defend its approach in court.

It also argues that the system is necessary to fund the enforcement infrastructure required to oversee large, complex digital platforms operating at global scale.

The financial stakes are substantial.

Based on Meta’s reported global earnings, maximum theoretical penalties under the regime could reach into the tens of billions of dollars in extreme cases of non-compliance.

Even routine fees, which are designed to fund Ofcom’s regulatory operations, are expected to generate hundreds of millions of pounds from large tech companies collectively.

The dispute is now before the High Court in London through a judicial review process, which will examine whether Ofcom’s interpretation of the law is lawful and proportionate.

The outcome could determine how digital regulation is funded and enforced in the UK and may influence similar frameworks being developed in other jurisdictions.

Other technology companies and industry groups are watching closely, with some expected to seek permission to intervene, arguing that the outcome could set a precedent for how global revenue is used as a basis for domestic regulatory enforcement.

A full hearing is scheduled later this year, and the regulator has indicated it plans to begin issuing fee invoices within the current regulatory cycle.

The case represents a broader collision between national regulators seeking to assert control over global digital platforms and technology companies arguing that enforcement systems must be tightly linked to local economic activity rather than worldwide corporate scale.