EU AI Act August 2 for UK Businesses: Extraterritorial Reach, Transparency Obligations, and Fines Up to 7% of Revenue

Digital News UK's July 9 analysis of the EU AI Act's reach into UK businesses provides the most complete operational summary of what August 2, 2026 means for UK law firms with EU exposure. The Act applies extraterritorially to any UK business that is a provider or deployer of an AI system whose output is used in the EU — meaning UK law firms using AI tools to produce work for EU-based clients, or with EU employees interacting with AI systems, are in scope. Article 50(1) requires providers of AI systems interacting directly with people to identify the AI at first interaction; Article 50(2) requires machine-readable marking of synthetic audio, image, video, and text outputs (with a December 2026 grandfathering window for systems placed on market before August 2); Article 50(4) requires labeling of AI-generated deepfakes or AI-generated text on matters of public interest. Penalties for breach of prohibited practices run to €35 million or 7% of global annual turnover; breaches of Article 50 transparency run to €15 million or 3%. The five practical actions the analysis identifies — AI use case mapping, EU exposure filtering, risk tier classification, transparency mechanism design, and contract chain allocation of compliance responsibility — represent the minimum viable compliance checklist for any law firm with transatlantic client relationships.