Disclosure letter

Definition

An R&W clause typically says: "the accounts are accurate", "there are no pending disputes", "all taxes have been paid". In reality this is rarely 100% true — there's almost always an open dispute, an unrecorded fine, a forgotten contract. The disclosure letter is where every exception gets captured: once a fact is "disclosed" in the letter, the buyer can no longer base a post-closing R&W claim on it. Not disclosed = potential claim; properly disclosed = legally neutralised.

The structure mirrors the R&W sections of the SPA. Per R&W (for example: "the company has no pending tax disputes") the letter lists specific exceptions ("A tax inspection of the 2023 VAT return is in progress; correspondence in dataroom 4.2.7"). Volume is typically 30 to 80 pages for a Benelux mid-market deal, with between 50 and 200 individual disclosures spread across financial, legal, tax, environmental, HR and commercial R&W.

Three quality standards determine whether a disclosure is effective. First, specificity — a vague disclosure ("there may be a tax issue") is not recognised by courts as valid disclosure. Be specific: date, party, amount, status. Second, fair disclosure — Belgian and Dutch law require disclosure to give a reasonable buyer enough information to understand and assess the issue. A reference to a 300-page document "somewhere in dataroom folder 7" often does not work. Third, general disclosure — some facts are explicitly "deemed disclosed" by reference to public registers (KBO/KVK), published accounts, or a designated dataroom segment. This is a negotiation point; buyers want item-by-item, sellers want broad.

The most common seller error is delay: the disclosure letter gets drafted in the final 2 weeks before closing, under time pressure, with insufficient internal consultation. Result: gaps in disclosures that later mature into R&W claims. We see repeatedly that a thoroughly drafted disclosure letter (3 to 4 weeks of work, including management interviews per R&W block) generates on average 30 to 50% fewer R&W claims than a rushed version — for a mid-market deal that's €40-150k of avoided claim cost.

Worked example

An Antwerp logistics business was sold for €14m. The seller spent 3.5 weeks on a thorough disclosure letter: 62 pages with 134 individual disclosures. One disclosure related to an €85k dispute with the Belgian FAVV (food safety authority) about refrigerated-transport procedures from 2024, status "under appeal". 14 months after closing the acquired company received a final fine of €74k. The buyer filed an R&W claim under "no pending tax or regulatory proceedings". The seller pointed to disclosure 7.3.2: the issue was specifically disclosed with case number and status. The Antwerp commercial court ruled: disclosure was sufficiently specific; no R&W claim available. Without that disclosure: €74k loss + €15-25k of legal cost. With it: zero loss.

When it matters

In every SPA — it is not an optional annex but the legal backbone of your R&W protection. Three rules of thumb: (1) start the disclosure work at least 4 weeks before targeted closing, (2) interview every functional head (finance, legal, HR, commercial, IT) per relevant R&W block, (3) be explicit about status and context of each disclosed issue — vagueness comes back to bite you later. A well-drafted disclosure letter costs typically €20-50k in legal hours for a mid-market deal and saves on average 3 to 5 times that in avoided R&W claims.

Frequently asked

How long does it take to draft a thorough disclosure letter?

3 to 4 weeks for a Benelux mid-market deal, including interviews with functional heads and legal review. Under time pressure it often gets done in 7-10 days — that's where gaps emerge that later mature into R&W claims. Start at least 4 weeks before targeted closing.

What's the difference between disclosure letter and dataroom?

Dataroom = broad repository of all DD documents (financial, legal, tax, HR, etc.). Disclosure letter = specific, legally-binding statement of exceptions to SPA R&W. A fact in the dataroom is not automatically "disclosed" — it must be specifically captured per R&W in the disclosure letter to have legal effect.

Is a vague disclosure ("there may be an issue") legally effective?

Usually not. Belgian and Dutch courts require "fair disclosure": specific enough that a reasonable buyer can understand and assess the issue. Vague wording is often broken through; references to large documents "somewhere in the dataroom" are not accepted without concrete location and status.

What is "deemed disclosure"?

A SPA clause stating that certain categories automatically count as disclosed: typically public registers (KBO/KVK), the published accounts, or a designated dataroom segment ("everything in dataroom folder 4 counts as disclosed for tax R&W"). Negotiable point — buyers want item-by-item, sellers want broad.