The UK communications regulator, Ofcom, opened a formal investigation into TikTok on 16 July 2026 to determine whether the platform is failing its child protection obligations under the UK Online Safety Act, in force since October 2023.

The investigation, announced by Ofcom's Director of Strategy, Kate Davies, focuses on three legal duties that came into force in July 2025: whether TikTok uses proportionate systems to prevent minors from encountering content about suicide, self-harm and eating disorders; whether it adequately protects different age groups from violent, misogynistic or hateful material; and whether its age verification mechanisms are sufficiently robust. According to The Guardian, the regulator had already warned in May 2026 that TikTok had not presented meaningful measures to protect British minors.

The immediate trigger was an Ofcom report, published on the same 16 July, which found that the age inference models used by TikTok to estimate whether a user is under age failed to correctly identify a significant proportion of children. The investigation will run for at least three months, with a first update expected in October 2026. If non-compliance is established, the platform faces fines of up to £18 million or 10% of its global revenue, and in serious cases a block on UK access.

TikTok stated, according to Ofcom's report, that it applies differentiated age-based experiences and is confident it meets its legal obligations. The investigation follows a broader social media ban for under-16s imposed by the British government one month earlier.

The UK case is part of a global regulatory shift redefining platform accountability toward children. The combination of mandatory age verification, duty-of-care obligations and proportionate sanctions offers a model that other jurisdictions, including those in Latin America, are watching as they debate their own digital protection frameworks for minors.

This article was drafted with artificial intelligence assistance from verified sources and reviewed by a human editor before publication.