The EU AI Act deadline picture changed significantly on May 7, 2026, when the EU Council and European Parliament reached a provisional political agreement — commonly called the Digital Omnibus — that extended several key compliance dates. What has not changed is the Article 50 transparency deadline, which remains August 2, 2026 and applies to chatbots and AI content tools across the EU market.
Most deadline calendars circulating as of early 2026 are now outdated. This one reflects the Omnibus changes as understood from confirmed legal sources (Hogan Lovells, Bird & Bird, White & Case, Orrick) and is current as of May 2026.
Important caveat: The Digital Omnibus is a provisional political agreement. Formal adoption by the European Parliament and Council is expected before August 2026 but is not yet final. Until formally adopted, the original pre-Omnibus deadlines remain legally in effect. In practice, enforcement authorities are treating the Omnibus dates as operative.
| Date | What Applies | Changed by Omnibus? |
|---|---|---|
| February 2, 2025 | Chapter I (general provisions) and Chapter II (prohibited AI practices under Article 5). GPAI obligations under Articles 53–56 also apply from this date. | No |
| August 2, 2026 | Article 50(1) — chatbots and AI systems interacting with users must disclose they are AI. Article 50(2) — new AI systems generating synthetic content must implement machine-readable watermarking. | No — unchanged by Omnibus |
| December 2, 2026 | Article 50(2) transitional period ends for existing AI systems already generating synthetic content. Watermarking must be implemented by this date for systems already deployed before August 2, 2026. | Yes — Omnibus added this transitional period |
| December 2, 2027 | Articles 11, 13, 47: Technical documentation, Instructions for Use, and Declaration of Conformity for standalone high-risk AI systems under Annex III. Previously August 2, 2026. | Yes — extended by 16 months |
| August 2, 2028 | High-risk AI systems that are safety components of regulated products under Annex I (medical devices, machinery, vehicles, toys, etc.). | Yes — extended by 24 months |
The Omnibus addressed three specific deadline categories. Understanding what changed — and what did not — is essential for planning your compliance timeline.
The most common deadline mistake: Many sources incorrectly state that the Omnibus moved all Article 50 obligations to December 2026. This is wrong. Only the watermarking transitional period for existing systems moves to December 2026. The chatbot disclosure deadline — Article 50(1) — remains August 2, 2026 for all systems.
Use this quick reference to identify which deadlines are relevant to your product:
August 2, 2026 — Article 50(1) applies. You need a disclosed AI interaction and a governance record documenting your compliance mechanism.
August 2, 2026 for new systems. December 2, 2026 if your system was already deployed before August 2, 2026. Article 50(2) watermarking applies.
December 2, 2027 — Annex III high-risk AI obligations apply. You need Article 11 technical documentation, Article 13 Instructions for Use, and Article 47 Declaration of Conformity.
August 2, 2028 — Annex I high-risk AI obligations apply. Same documentation requirements as Annex III, different deadline.
Already prohibited. Article 5 prohibited practices have been in force since February 2, 2025. No documentation makes a prohibited system lawful.
Not sure which category your system falls into? Take the free 2-minute risk classification quiz — it maps your product to the correct regulatory category and deadline.
The December 2027 extension for Annex III high-risk AI is genuine relief for teams who were facing an August 2026 deadline. But treating the extension as permission to procrastinate carries its own risks.
First, the fines have not changed. A high-risk AI system without technical documentation on December 3, 2027 faces the same €15 million or 3% of global turnover exposure it would have faced on August 3, 2026. The deadline moved; the penalty did not.
Second, the compliance consulting market will be significantly more congested and expensive as 2027 approaches. Teams that generate documentation now and have it reviewed by counsel in 2026 will pay less and wait less than those who join the 2027 rush.
Third, if your product is already serving EU users with a high-risk AI system, you are already exposed. A regulator investigating a complaint today can ask for your technical documentation today — and "the deadline hasn't arrived yet" is not a complete answer to an active investigation.
| Product Type | Action | Timeline |
|---|---|---|
| Chatbot / AI assistant | Add UI disclosure + generate Article 50 governance record | Before August 2, 2026 |
| AI content generator (images, text, video, audio) | Implement content labelling + governance record | Before August 2, 2026 (new) / December 2, 2026 (existing) |
| High-risk AI, Annex III | Generate Article 11/13/47 documentation pack | Before December 2, 2027 — but start now |
| High-risk AI, Annex I product | Generate Article 11/13/47 documentation pack | Before August 2, 2028 |
| Unsure of classification | Take the risk quiz, consider Article 6(3) exemption memo if Annex III-adjacent | Now |
Deadline: August 2, 2026
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Article 11 Technical Documentation, Article 13 Instructions for Use, Article 47 Declaration of Conformity. For Annex III high-risk AI systems.
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