The EU AI Act is not a single regulatory switch that turned on in 2025. Its requirements are being applied in stages, creating distinct deadlines for AI vendors, model providers, developers and organizations deploying AI systems in Europe. The first rules took effect on 2 February 2025, while a second major milestone on 2 August 2025 brought governance provisions and obligations for providers of general-purpose AI models into application.

That phased approach matters for companies building or using AI tooling. Consumer assistants, industrial applications and internal software may rely on general-purpose AI models, but the compliance timeline depends on the role an organization plays and the type of system involved. The next major date is 2 August 2026, when the AI Act's enforcement powers and most high-risk AI requirements are scheduled to become fully applicable.

The EU AI Act rollout is phased, not blanket

The European Union has structured the AI Act around a risk-based framework and a staged implementation schedule. According to the EU AI Act implementation timeline published by the AI Act Service Desk, 2 February 2025 marked the application of the Act's general provisions, including definitions and AI literacy, alongside prohibitions on unacceptable-risk AI uses.