Meta Legal Challenge Against UK Online Safety Act 2026

Meta has launched a legal challenge against the UK media regulator over the Online Safety Act, marking the latest in a series of actions by social media companies accused of using courts to delay implementation of the landmark legislation. The parent company of Facebook served notice this week in an appeal against placing WhatsApp and Instagram into a category that imposes additional duties.

Why Meta Is Challenging the Online Safety Act

Meta's legal challenge centres on Ofcom's decision to categorise WhatsApp and Instagram as 'Category 1' services under the Online Safety Act. This designation triggers extra responsibilities, including greater transparency, more user controls, measures to protect users from fraudulent advertising, and increased recording of illegal content.

The company argues that the methodology used to calculate fees is flawed and should not be based on global revenue. In May, Meta launched a separate legal challenge in London claiming that Ofcom's fee calculations are unfair. Breaches of the Act can result in fines of up to 10% of qualifying worldwide revenue (QWR) or £18 million, whichever is higher.

What the Online Safety Act Means for Social Media

The Online Safety Act is a landmark piece of legislation aimed at making the internet safer for users, particularly children. It requires social media platforms to take proactive measures to prevent harmful content and protect users from online harms.

Ofcom, as the regulator, is tasked with enforcing the Act. To fund its online safety work, Ofcom draws on a proportion of the fees paid by companies. This has led to pushback from tech giants, who argue that the fees are excessive and based on flawed calculations.

Key Takeaways

• Meta is legally challenging Ofcom's categorisation of WhatsApp and Instagram under the Online Safety Act.
• The challenge focuses on additional duties and fee calculations based on global revenue.
• Other companies like TikTok and X are also taking legal action against Ofcom's information requests.
• The outcome could significantly impact how the Online Safety Act is enforced and funded.

Comparison of Legal Challenges

Several social media companies are challenging different aspects of the Online Safety Act. The table below summarises the key legal actions:

Implications for Users and Platforms

The legal challenges could delay the implementation of the Online Safety Act, potentially leaving users less protected in the short term. However, if Ofcom's approach is upheld, it could set a precedent for how social media platforms are regulated globally.

For Meta, the outcome will determine how much it pays in fees and how it operates its services in the UK. The company has expressed concerns that the additional duties could stifle innovation and impose disproportionate burdens.

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