EU's AI disclosure law is now live for AI-assisted books

Here's a headline authors keep missing: this isn't news that a new AI law is coming to Europe. It's news that one already arrived, seven weeks ago, and the compliance clock has been running the whole time.

Since August 2, 2026, Article 50 of the EU AI Act has required labeling AI-generated or AI-narrated content that reaches EU readers -- audiobooks with an AI narrator, books drafted or translated with AI assistance, AI-generated cover illustrations, all of it. Cooley's alert on the rule is blunt about scope: it applies to providers and deployers outside the EU too, as long as their content reaches EU users. Your location, and your publisher's, doesn't get you out of it if an EU reader can buy the book.

The penalty is real money, not a marketplace slap on the wrist like a KDP policy violation: fines can reach €15 million or 3% of worldwide annual turnover, whichever is higher, per Cooley's reading of the regulation.

Morgan Lewis's analysis adds the detail that actually changes what you need to do this week. Content you published before August 2 doesn't need to be retroactively labeled -- so your backlist isn't suddenly out of compliance. But there's a second, separate deadline: December 2, 2026, when marking and detection obligations kick in for generative AI systems already on the market. That's a different clock, aimed at the AI tools themselves rather than your book directly, but it's worth knowing it exists so you're not caught assuming August 2 was the only date that mattered.

Neither firm's analysis frames this as controversial or contested -- both treat the August 2 start date and the extraterritorial reach as settled fact, which is exactly why it's odd how few author-facing sites have flagged it clearly. A rule that's been enforceable for seven weeks, with fines in the tens of millions, deserves more attention than a rule that's merely proposed.

This is genuine regulatory exposure, not platform terms of service you can shrug off. If any book, audiobook or translation of yours uses AI-generated content and reaches EU readers -- including through Amazon.de, .fr, .it, or Kobo's EU storefronts -- add the required disclosure now, regardless of where you or your publisher are based. Check your EU-facing listings this week, not after a regulator does it for you.