TikTok seeks to overturn EU 'gatekeeper' status in historic European Court appeal
The European Court of Justice hears the first challenge to a Digital Markets Act designation, with a ruling expected in coming months
On 12 May 2026, TikTok filed a final appeal with the European Court of Justice to overturn its designation as a 'gatekeeper' under the EU Digital Markets Act. This legal action marks the first instance of a DMA gatekeeper challenge being heard by the highest court in the European Union. The case, identified as C-627/24 P Bytedance v Commission, centres on whether the social media platform satisfies the three statutory criteria required for gatekeeper status: significant market impact, acting as a key business gateway to users, and holding an entrenched market position.
TikTok's legal team, represented by Bill Batchelor, argued that the lower tribunal erred in its 2024 ruling by failing to account for the company's overwhelming reliance on Asian markets. The defence emphasised that TikTok operates in a distinct regulatory, linguistic, and cultural environment in Europe compared to its Asian base. Furthermore, the firm contended that it does not meet the criteria for gatekeeper status due to the specific dynamics of its European user base.
Central to the argument is the concept of 'multihoming', which the defence asserts negates ecosystem lock-in. Legal representatives introduced evidence suggesting that between 70 and 80 per cent of TikTok users simultaneously utilise other platforms, including Facebook, Instagram, Snap, and X. The submission posits that because users are not dependent on a single ecosystem, the platform cannot be classified as a gatekeeper under the legislation.
The European Commission, represented by lawyer Mislav Mataija, countered that lock-in effects can persist even when users engage with multiple platforms. The regulator argued that specific user groups remain dependent on TikTok, maintaining that the designation remains valid despite the broader usage of alternative services. This dispute highlights the ongoing tension between the Commission's interpretation of market power and the platform's defence of its competitive position.
TikTok was originally designated a 'gatekeeper' in September 2023, joining a cohort of major technology firms including Alphabet, Meta Platforms, Apple, Amazon, Microsoft, and Booking.com. All designated entities have more than 45 million monthly active users in the EU and face stringent regulatory requirements. Non-compliance with the Digital Markets Act can result in fines of up to 10 per cent of a company's annual global turnover, a penalty that underscores the financial stakes of this litigation.
A ruling is anticipated in the coming months from the ECJ panel, which consists of 15 judges. The outcome of this case may set a significant legal precedent for other technology firms, including Meta Platforms, which is also contesting its gatekeeper designation regarding Messenger and Marketplace. The decision will have profound implications for how Europe regulates Big Tech and enforces competition rules in the digital sector.
