Evidence in Dutch civil law

Published on 3 September 2023 · Last updated 27 October 2026

In Dutch civil law, the party that relies on the legal consequences of facts it asserts must prove those facts (Article 150 of the Dutch Code of Civil Procedure, Rv). Facts that the other party does not sufficiently dispute are taken as established. Evidence may be provided by any means, and the court weighs it freely. There is no discovery: access to documents is limited to specific records.

This page is written for foreign businesses that are, or may become, a party to proceedings before a Dutch court. It explains who must prove what, which evidence counts and how you can obtain documents and statements from the other side. For the steps of a case, see how to start legal proceedings in Dutch courts and our overview of litigation in the Netherlands.

Who has to prove what in Dutch civil proceedings?

The party that invokes the legal consequences of facts or rights it asserts bears the burden of proving them. A special rule or the requirements of reasonableness and fairness can lead to a different allocation (Article 150 Rv).

In a claim for damages for breach of contract, the claimant must therefore prove the contract, the breach and the damage. If the defendant argues that the claimant complained too late about a defect, the defendant must in principle prove the facts supporting that defence (Hoge Raad 12 December 2014, ECLI:NL:HR:2014:3593). Such a defence that releases the defendant is in Dutch called a bevrijdend verweer.

The burden of proof only matters for facts that are disputed. The court must treat facts as established when one party asserts them and the other does not, or not sufficiently, dispute them, unless accepting them would lead to a legal consequence that is not at the free disposal of the parties (Article 149(1) Rv). A bare denial is often not enough: the party that disputes a fact must explain why. Facts of common knowledge and general rules of experience need no proof (Article 149(2) Rv).

Which types of evidence does a Dutch court accept?

Evidence can be provided by any means, unless the law provides otherwise. The court is free to assess the evidence, again unless the law provides otherwise (Article 152 Rv). The main types of evidence are:

Type of evidence	Rule	Article
Documents, e-mails, chat messages, invoices	freely assessed; a signed deed (akte) can have binding force	156–160 Rv
Witness statements before the court	under oath, based on the witness’s own observation	163, 166, 177 Rv
Parties heard as witnesses	parties can also testify as a witness	164 Rv
Expert report ordered by the court	expert appointed after consulting the parties	186 Rv
Site inspection or viewing of objects	by the court, with the registrar	193 Rv
Admission in court	an express admission of the other party’s assertion	154 Rv

Written witness statements, technical reports commissioned by a party and recordings are also admissible. Their weight depends on how they were made and whether they are confirmed by other evidence.

What is binding evidence under Dutch law?

Binding evidence (dwingend bewijs) means that the court must accept the content of certain evidence as true (Article 151(1) Rv). The most important example for businesses is a signed document intended to serve as evidence.

A private deed (onderhandse akte) provides binding evidence between the parties of the truth of a statement by the signatory about what the deed is meant to prove for the other party, unless this could lead to a legal consequence that is not at the free disposal of the parties (Article 157(2) Rv). A signed delivery note in which the buyer confirms receipt of goods is a typical example. Counter-evidence remains possible, even against binding evidence, unless the law excludes it (Article 151(2) Rv). If the signature is expressly denied, the deed proves nothing until it is proven who signed it (Article 159(2) Rv).

Parties may agree on evidence rules, for example that the supplier’s logs are decisive. Such agreements do not apply to facts with legal consequences that are not at the free disposal of the parties (Article 153 Rv).

Can you force the other party to disclose documents?

Not in the way of common-law discovery. Dutch law gives a right to access, a copy or an extract of specific data about a legal relationship to which you are a party, if you have sufficient interest (Article 194(1) Rv).

The person holding the data may refuse if he has a right of professional privilege, or if there are weighty reasons (Article 194(2) Rv). The court can order the other party, or a third party, to provide access and set the conditions and the time limit (Article 195 Rv and Article 195a Rv). The party requesting access bears the costs of providing it.

Since 1 January 2025, these rules replace the former Article 843a Rv. In addition, the court can at any stage order a party to explain certain assertions or to produce documents relating to the case. A party may refuse for weighty reasons, or ask that only the court takes note of them (Article 22(1) and (2) Rv). Parties must state the relevant facts fully and truthfully; if they do not, the court can draw the conclusions it sees fit (Article 21 Rv).

Be specific. Describe the documents by date, sender, subject or period. A request for “all correspondence” will usually fail.
Show your interest. Explain why you need the documents to prove or assess your claim.
Expect objections. Confidential business information can be a weighty reason, but the court can impose conditions instead of refusing access.

How can you secure evidence before a case starts?

Before proceedings are pending, the court can order preliminary evidence measures at the request of an interested party: a preliminary witness examination, an expert report, a site inspection or access to documents (Article 196 Rv and Article 197(3) Rv). The court grants the request unless one of the grounds for refusal in Article 196(2) Rv applies.

If there is a well-founded fear that documents or objects will be hidden or lost, you can ask the preliminary relief judge for leave to attach them to protect evidence (Article 205 Rv). The attachment does not give you access yet: you only see the attached material after the court has decided separately in the main case that you are entitled to it (Article 206(1) Rv). If no case is pending, the court sets a time limit for starting one (Article 205(4) Rv).

An expert investigation is often decisive in technical disputes, for example about software, machinery or construction. The expert must carry out the task impartially and give both parties the opportunity to comment (Article 190 Rv).

What happens if the court orders you to provide evidence?

If witness evidence is permitted by law and a party offers to prove disputed facts that can decide the case, a witness examination takes place. The court states, as far as possible, which party must prove which facts (Article 166(1) and (4) Rv). The other party may always call witnesses for counter-evidence (Article 168 Rv).

Plan this stage early. Witnesses must be available on the date set by the court, and statements of employees who have left the company can be hard to obtain. How witnesses are heard is explained on our page on witness hearings in the Netherlands.

You are sued in the Netherlands: what should you do with your evidence now?

Secure it immediately. Once you receive a writ of summons, the time to respond is short, and the court expects a full statement of your defence with the evidence you have.

Collect the contract, general terms and conditions, order confirmations, delivery notes and correspondence, including e-mails and messages.
Make a timeline of the facts and identify who was involved and who is still employed.
Preserve electronic data and suspend routine deletion of mailboxes and logs.
Have documents in another language translated where the court needs them; proceedings before the ordinary Dutch courts are in principle conducted in Dutch.
Ask a Dutch lawyer to assess which facts you must prove and which the other party must prove.

Practical example: proving a defect in delivered goods

Suppose a German wholesaler buys electronic components from a Dutch manufacturer. Part of the batch fails. The wholesaler withholds payment, and the manufacturer sues for the price. The manufacturer must prove the contract and the delivery; a signed delivery note provides binding evidence of receipt between the parties.

The wholesaler relies on the defect and must prove it. Its own test report helps, but the court may want an independent expert. The manufacturer argues that the wholesaler complained too late; the manufacturer must then prove the facts supporting that defence. Read more on the time limit for complaints in the Netherlands.

When should you involve a Dutch lawyer?

Involve a Dutch lawyer when a dispute arises and before you send or answer a formal demand. Decisions on evidence are made early: what you write, which documents you keep and whether you secure statements or an expert report before proceedings start.

MAAK Advocaten in Amsterdam assists foreign and Dutch businesses in commercial disputes before the Dutch courts, in first instance and on appeal. We assess the burden of proof, request access to documents or preliminary evidence measures and prepare witnesses and experts. Read more about our work as a litigation attorney in the Netherlands.

Frequently asked questions about evidence in Dutch civil law

What does Article 150 of the Dutch Code of Civil Procedure say?

Article 150 Rv is the basic rule on the burden of proof. The party that relies on the legal consequences of facts or rights it asserts must prove them, unless a special rule or the requirements of reasonableness and fairness lead to a different allocation.

Is there discovery in Dutch civil proceedings?

No. Dutch law has no general discovery. A party to a legal relationship can request access to, a copy or an extract of specific data if it has sufficient interest (Article 194 Dutch Code of Civil Procedure), and the court can order a party to produce documents (Article 22).

Are e-mails and WhatsApp messages accepted as evidence in the Netherlands?

Yes. Evidence can be provided by any means unless the law provides otherwise, and the court weighs it freely (Article 152 Dutch Code of Civil Procedure). The weight depends on authenticity, context and whether other evidence confirms the messages.

What happens if a fact is not disputed?

The court must treat a fact asserted by one party as established if the other party does not, or not sufficiently, dispute it (Article 149(1) Dutch Code of Civil Procedure). A bare denial is often insufficient; the disputing party must explain its position.

Can I secure evidence before starting proceedings in the Netherlands?

Yes. The court can order preliminary evidence measures before a case is pending, such as a witness examination, an expert report or access to documents (Article 196 Dutch Code of Civil Procedure). If evidence may be lost, an evidential attachment is possible with leave of the court (Article 205).