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Under Dutch law, an agreement is legally binding as soon as an offer has been accepted (Article 6:217(1) Dutch Civil Code, DCC). You usually do not need a signed document. Unless the law provides otherwise, statements can be made in any form, also orally or by conduct (Article 3:37(1) DCC). A written document mainly helps you prove what was agreed.
Still, you are often asked for a legally binding document, and for some agreements the law does require a written form. This page explains when an agreement binds you under Dutch law, when the law requires writing and what a signed document proves. Our contract lawyer in the Netherlands can advise you on your situation.
When is an agreement legally binding in the Netherlands?
A contract is formed by an offer and its acceptance (Article 6:217(1) DCC). Behind this lies a general rule: a juristic act requires an intention to create legal effects that has been expressed in a declaration (Article 3:33 DCC). In practice it is not always clear whether an offer was made or accepted. Dutch law then also protects reasonable reliance. If you understood the other party’s declaration or conduct in the sense you could reasonably give it in the circumstances, the other party cannot claim that it did not intend it that way (Article 3:35 DCC).
Offer and acceptance do not have to be explicit. A declaration can also be implied in one or more acts (Article 3:37(1) DCC), for example when the other party starts to perform. Timing matters too. An oral offer lapses if it is not accepted immediately, and a written offer lapses if it is not accepted within a reasonable time. An offer also lapses if it is rejected (Article 6:221 DCC). These rules, and the other rules in Articles 6:219 to 6:225 DCC (such as those on revoking an offer and on a deviating acceptance), apply unless the offer, another juristic act or a custom provides otherwise (Article 6:217(2) DCC).
Is a counterproposal an acceptance under Dutch law?
Disputes often arise after a counterproposal. The basic rule is that an acceptance that deviates from the offer counts as a new offer and as a rejection of the original offer (Article 6:225(1) DCC). If the parties then start to perform, that conduct can amount to an implied acceptance of the counterproposal (Article 3:37(1) DCC).
There is an important exception for minor differences. If a reply that is intended as an acceptance deviates from the offer only on minor points, it counts as an acceptance, and the contract is formed on the terms of that acceptance, unless the party that made the offer objects to the differences without delay (Article 6:225(2) DCC). If offer and acceptance refer to different general terms and conditions, the second reference has no effect, unless it also expressly rejects the general terms and conditions referred to first (Article 6:225(3) DCC). Read more about general terms and conditions in the Netherlands.
What is an invitation to make an offer?
A party can also choose not to make an offer, but only to invite others to make one. Whether a statement is an offer or only such an invitation depends on its content and on what the other party could reasonably infer from it (Articles 3:33 and 3:35 DCC). In the Dutch housing market, for example, a property advertised for sale is in practice usually treated as an invitation to make an offer. The same approach can be used outside that context. In these situations, a contract is only formed once the party that issued the invitation accepts the offer it receives.
Is an oral agreement legally binding in the Netherlands?
In most cases, yes. Because statements can be made in any form unless the law provides otherwise (Article 3:37(1) DCC), most contracts under Dutch law do not have to be in writing. An oral agreement is then just as binding as a written one and can be enforced in court. The law does prescribe a form for some acts. Unless the law provides otherwise, a juristic act that is not made in the prescribed form is void (Article 3:39 DCC). The practical problem with an oral agreement is proof. In court, evidence can in principle be provided by any means (Article 152(1) Dutch Code of Civil Procedure, Rv), but it may be difficult to prove the content or even the existence of the agreement. We therefore recommend that you put business agreements in writing.
When must an agreement be in writing under Dutch law?
In some situations, Dutch law does require writing. These rules often protect a weaker party. Examples:
- The purchase of a residential property by a buyer who is a natural person not acting in the course of a profession or business must be concluded in writing (Article 7:2(1) DCC). The transfer (levering) of real estate itself requires a notarial deed, followed by registration in the public registers (Article 3:89(1) DCC).
- In an employment contract, a probationary period must be agreed in writing (Article 7:652(2) DCC); a clause contrary to that article is void (Article 7:652(8) DCC). The same applies to a penalty clause in an employment contract (Article 7:650(2) and (6) DCC). A non-competition clause is only valid if, among other conditions, the employer has agreed it in writing with an adult employee (Article 7:653(1) DCC).
- A guarantee (borgtocht) given by a natural person who is not acting in the course of a profession or business can only be proved against that person by a document signed by him or her (Article 7:859(1) DCC), unless the guarantor has already performed the debtor’s obligation in whole or in part (Article 7:859(2) DCC). This protection does not apply to a director who, alone or together with co-directors, holds the majority of the shares and gives the guarantee for the normal business of the BV or NV (Article 7:857 DCC).
If the law requires a contract to be in writing, an electronic contract can also meet that requirement, provided that it can be consulted by the parties, its authenticity is sufficiently guaranteed, the moment it was concluded can be established with sufficient certainty and the identity of the parties can be established with sufficient certainty (Article 6:227a(1) DCC). This does not apply to contracts for which the law requires the involvement of a court, a public authority or a professional with a public task, such as a notary (Article 6:227a(2) DCC).
What does a signed document prove under Dutch law?
A signed document intended to serve as evidence is a deed (akte) (Article 156(1) Rv). A deed drawn up by a notary or another competent official is an authentic deed; all other deeds, such as a contract signed by the parties themselves, are private deeds (onderhandse akten) (Article 156(2)-(3) Rv). Between the parties, both types of deed provide compelling evidence (dwingend bewijs) of the truth of a party’s statement that the deed is intended to prove for the benefit of the other party, unless this could lead to a legal effect that the parties are not free to determine (Article 157(2) Rv). Compelling evidence does not end the discussion: counter-evidence is allowed, unless the law excludes it (Article 151(2) Rv). A signed contract therefore puts you in a much stronger position if the other party later disputes what was agreed.
Frequently asked questions about legally binding documents in the Netherlands
What makes an agreement legally binding in the Netherlands?
An agreement is legally binding once an offer has been accepted (Article 6:217(1) DCC). Each party must have intended legal effects and expressed that intention in a declaration (Article 3:33 DCC), but a party can also be bound if the other party reasonably relied on its declaration or conduct (Article 3:35 DCC). No particular form is needed, unless the law prescribes one (Article 3:37(1) DCC).
Is a written agreement legally binding?
Yes, once the parties have agreed. A written agreement is binding in the same way as an oral one, and a signed written agreement is easier to prove. Between the parties, a signed deed provides compelling evidence of a party’s statement that the deed is intended to prove for the other party’s benefit (Article 157(2) Rv), although counter-evidence is allowed (Article 151(2) Rv). Writing is a legal requirement only in specific cases, such as a consumer’s purchase of a home (Article 7:2(1) DCC).
What is a legally binding declaration under Dutch law?
A declaration is an expression of an intention to create legal effects, such as an offer, an acceptance or a notice of termination (Article 3:33 DCC). Unless otherwise provided, it can be made in any form (Article 3:37(1) DCC). A declaration addressed to a specific person only takes effect once it has reached that person. It also takes effect if it did not reach him or her, or did not reach in time, because of his or her own act, the act of persons for whom he or she is liable, or other circumstances concerning his or her person that justify that he or she bears the disadvantage (Article 3:37(3) DCC).
Is an offer binding before it is accepted?
An offer can in principle be revoked, unless it contains a period for acceptance or its irrevocability follows from the offer in another way (Article 6:219(1) DCC). Revocation is only possible as long as the offer has not been accepted and no notice of acceptance has been sent. If the offer states that it is made without obligation (vrijblijvend), it can still be revoked immediately after the acceptance (Article 6:219(2) DCC).
Is an email or electronic agreement legally binding in the Netherlands?
Yes, in principle. Because statements can be made in any form (Article 3:37(1) DCC), an agreement concluded by email or another electronic means binds the parties in the same way as a paper agreement. Where the law requires a written contract, an electronic contract also meets that requirement if the conditions of Article 6:227a(1) DCC are met, such as sufficient certainty about its authenticity and the identity of the parties.
Primary sources
- Dutch Civil Code (Burgerlijk Wetboek), Book 3: Articles 3:33, 3:35, 3:37, 3:39 and 3:89
- Dutch Civil Code, Book 6: Articles 6:217, 6:219, 6:221, 6:225 and 6:227a
- Dutch Civil Code, Book 7: Articles 7:2, 7:650, 7:652, 7:653, 7:857 and 7:859
- Dutch Code of Civil Procedure (Wetboek van Burgerlijke Rechtsvordering, Rv): Articles 151, 152, 156 and 157
Contract lawyer for legally binding documents in the Netherlands
Do you have questions about legally binding documents, or do you need advice on concluding an agreement in the Netherlands? Our English-speaking contract lawyers in the Netherlands can help you. For the general rules, see our page on contract law in the Netherlands.
