Due Diligence on a Target's AI: What to Ask

AI washing, shadow AI, training-data rights, and the EU AI Act dates after the 2026 amendment

Updated October 2026 · 5 min read · Anweshna

"AI due diligence" means two different things. One is using AI to do diligence, which most of this blog is about. The other is diligencing the target's AI: what it claims, what it actually runs, what data went into it, and what rules apply. This page is about the second. It has become a standard workstream, and the questions are more concrete than "do they use AI?"

Why it is now its own workstream

Three things changed in the last two years:

Question set 1: what does the target claim, and is it true?

Mayer Brown frames the core test simply: is management overstating the sophistication of the company's AI capabilities?[2] If revenue or valuation rests on an AI claim, the claim is a valuation input, and it should be tested the way revenue is.

Question set 2: what AI is in use, officially or not?

The following are from Mayer Brown's May 2026 list for private equity sponsors:[2]

Add two of your own. Is there a written AI-use policy, and is it enforced? And which AI vendors hold customer data, and under what contract terms?

The first deliverable to ask for is the AI inventory: every system, its provider, what it is used for, what data goes in, and who owns it. If the target can't produce one, that is itself a finding, and it tells you how much weight to put on management's answers to everything else.

Question set 3: data and IP

Question set 4: where the EU AI Act applies, and when

If the target sells into the EU or its AI's output is used there, the AI Act may apply. The timetable changed in 2026, and many published checklists still show the old dates.

ObligationApplies from
General date of application of the AI Act2 August 2026[3]
High-risk systems under Article 6(2) and Annex III2 December 2027, moved from 2 August 2026[3]
High-risk systems under Article 6(1) and Annex I (AI in regulated products)2 August 2028[3]

The dates come from Regulation (EU) 2026/1744, the "Digital Omnibus on AI", published in the Official Journal on 24 July 2026. It amended Article 113 of the AI Act and explains the delay by the late availability of standards and guidance.[3] For diligence, the practical questions are:

Check the dates against the current text. The AI Act's timetable has already been amended once. Treat any date in a diligence memo, including ours, as something to confirm against the consolidated text on EUR-Lex at the time you rely on it.

What goes into the purchase agreement

Findings from this workstream usually land in three places: specific AI representations (compliance with law, rights to training data, accuracy of public AI claims); specific indemnities for known issues; and the insurance discussion, where AI is becoming a point of friction. See Will AI-Assisted Diligence Satisfy an R&W Insurer?

Where screening helps

Anweshna's M&A ruleset includes an AI & Tech Governance category, and it is one of the seven that can block a deal. A screen across the data room surfaces where the target's own documents discuss AI use, model vendors and AI-related disputes, and where they are silent. It won't produce the AI inventory for you; it tells you which documents to read first while you ask for it. See our AI & tech governance page.

When the answers are weak

Weak answers are common, and they are informative. No inventory usually means no AI governance, and no governance means any representation about AI compliance is a guess. The practical response is to narrow what you rely on: ask for specific representations rather than general ones, and focus testing on the AI that drives revenue.

Bottom line

Ask for the inventory, test the claims, trace the data, and check which AI Act dates actually apply. The answers either support the value the seller is attributing to AI, or they become specific representations and indemnities. Both outcomes are better than taking "AI-powered" at face value.

Sources

  1. U.S. Securities and Exchange Commission. SEC Charges Two Investment Advisers with Making False and Misleading Statements About Their Use of Artificial Intelligence. Press release 2024-36, 18 March 2024. sec.gov/newsroom/press-releases/2024-36
  2. Mayer Brown. AI: The Next Frontier of PE Deal Risk. 18 May 2026, via JD Supra. jdsupra.com
  3. Regulation (EU) 2026/1744 of the European Parliament and of the Council of 8 July 2026 (Digital Omnibus on AI), OJ L, 24.7.2026; recitals and amendment (40) to Article 113 of Regulation (EU) 2024/1689. data.europa.eu/eli/reg/2026/1744/oj

We cite only sources we have retrieved and read; see our methodology. Nothing here is legal advice.

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