Subject to contract and the vrijblijvend reservation under Dutch law
The expression "subject to contract", and its Dutch-language equivalents such as vrijblijvend, onder voorbehoud, or behoudens definitieve overeenstemming, is commonly used in commercial negotiations under Dutch contract law to signal that the parties do not yet intend to be legally bound. Under Dutch law, however, the legal effect of such a reservation depends on a careful analysis of all the circumstances, including the Haviltex interpretation of the communications exchanged between the parties. Dutch law does not treat "subject to contract" as a categorical bar to contract formation in the way that English law has historically done.
How does Dutch law regulate contract formation under Article 6:217 of the Dutch Civil Code?
Under Article 6:217 of the Dutch Civil Code, a contract is formed by an offer and its acceptance. Once the parties have agreed on all essential terms, a binding contract exists, even without a written document, and even if one party subsequently claims the agreement was "subject to contract" or otherwise non-binding.
Dutch courts assess whether a contract has been formed using an objective standard: what would a reasonable party in the position of the other party have understood from the words used and the conduct displayed? If all essential elements of the agreement, parties, subject matter, and price in the case of a sale, have been agreed, Dutch courts will generally hold that a contract exists, provided the circumstances do not show a clear mutual intention to defer contractual effect until a formal document is signed.
This approach differs from the traditional English-law position, where marking correspondence "subject to contract" was long treated as preventing contract formation almost automatically. Under Dutch law, the same phrase is merely one indicator, not a conclusive bar, and its effect depends on the full context of the negotiations.
What is a vrijblijvend offer under Dutch law?
Article 6:219 of the Dutch Civil Code specifically addresses vrijblijvend (non-binding) offers: an offer described as vrijblijvend may be revoked by the offeror promptly after acceptance. If the offeror does not revoke promptly, a binding contract is formed.
A vrijblijvend offer is commonly used in commercial quotations and price lists: a supplier sets out its terms without being immediately bound if the customer accepts. The legal consequence under Dutch law is that the offeror may still revoke the offer after acceptance, but must do so promptly. If the offeror takes no action after receiving acceptance, the contract comes into existence. This is an important limitation on the vrijblijvend qualification, it does not give the offeror unlimited time to decide whether to proceed.
The vrijblijvend rule also interacts with the doctrine of implied acceptance: where a party behaves consistently with having accepted an offer, for example, by commencing performance or incurring expenditure in anticipation of performance, Dutch courts may find that a contract was formed even in the absence of an express statement of acceptance.
When does a "subject to contract" reservation prevent contract formation?
A clearly worded and consistently maintained "subject to contract" reservation will generally prevent contract formation under Dutch law, provided both parties understood the reservation in the same way and neither party acted in a manner inconsistent with it.
For the reservation to be effective, it must be communicated clearly at the outset of negotiations and maintained consistently throughout. If one party marks its initial proposal as "subject to contract" but then behaves as though the agreement is binding, for example, by demanding performance or asserting rights under the proposed terms, Dutch courts will not automatically uphold the reservation. The parties' subsequent conduct is a key element in the Haviltex analysis and may show that both parties have treated the agreement as binding despite the formal label.
In M&A and complex commercial transactions, parties routinely use a letter of intent to record that negotiations are ongoing and that no binding obligation to conclude the final agreement exists. The LOI typically includes express language confirming that the transaction is subject to the completion of due diligence, negotiation of definitive documentation, and applicable board or shareholder approvals. Together, these provisions create a clearer record of the parties' non-binding intent than a bare "subject to contract" notation.
How do board approval clauses and internal approval reservations affect contract formation?
A "subject to board approval" or "subject to internal approval" clause may prevent contract formation altogether under Dutch law, or may operate as a condition precedent, depending on whether the parties intended to be bound pending the approval or not bound at all until it is granted.
Where a representative of a company agrees terms in a negotiation but states that the agreement is subject to approval by the supervisory board or management board, Dutch courts will examine whether the parties intended this as a condition precedent to an otherwise binding agreement, or as a reservation preventing any agreement from forming until the approval is given. The distinction matters: in the former case, breaking off after a conditional agreement has been reached may give rise to precontractual liability; in the latter case, the parties are not yet bound and either may walk away. A contract lawyer in the Netherlands can advise on how to draft pre-contractual communications to achieve clarity on the binding status of commercial negotiations.