Jan Dop

partner

Jan is a specialist in employment law and corporate law

jan.dop@russell.nl
+31 20 301 55 55

Personnel: Non-competition clause and non-solicitation clause: Write it down!

Publication date 22 maart 2017

Employers often wish to make a non-competition and / or non-solicitation clause applicable on their employees. The law requires such a clause to be agreed upon “in writing”. What does this mean exactly?

arbeidsovk - social media

Clauses restricting an employee’s opportunities to work for a new employer or start his or her own business after the termination of an employment contract must be agreed upon in writing by the employer and the employee of age. The reason for such a clause to be agreed upon in writing is that the employee must be able to thoroughly consider the consequences of this onerous clause.

Non-competition and non-solicitation clauses

There have been discussions on whether the requirement for a clause to be set out in writing not just applies to non-competition clauses but also to non-solicitation clauses. A recent judgement of the Supreme Court holds that the requirement for clauses to be set out in writing also applies to non-solicitation clause.

‘In writing’

But what does ‘in writing’ mean exactly? According to case law, this requirement is fulfilled in the following cases:

  • The clause agreed upon is printed on paper, or
  • The clause agreed upon is included in an e-mail.

The clause can also be included in another document (for instance, in staff rules) than the signed document. In this case one of the two following requirements must be fulfilled:

  • The other document is an attachment to the signed document and the clause is referred to in the signed document.
  • In the signed document, the employee explicitly declares to agree with the clause.

A generally phrased agreement with attached documents containing a non-competition and / or non-solicitation clause therefore does not fulfil the requirement for the clause to be set out in writing.

Contract for services

Regarding contracts for services, there is no legal requirement for non-competition or non-solicitation clauses to be agreed upon in writing. However, according to recent case law, the agreement of a self-employed worker without employees (zzp’er) with such a clause cannot be assumed too readily. Therefore, make sure you meet the requirement for the clause to be set out in writing not just with employees but also with contractors.

Advice

Do you, as an employer, want to make sure that a valid non-competition and / or non-solicitation clause has been agreed upon? We advise you to explicitly include such an agreement in the employment contract. Do you want to include such a clause in a fixed-term employment contract? Make sure that you meet the obligation to state reasons. Is the contract is (tacitly) renewed? Make sure to agree upon the clause in writing again because in the event of a new contract the old clause will lapse.

Contact

Would you like to learn more about including a non-competition clause or non-solicitation clause? Please contact us:

    We process the personal data above with your permission. You can withdraw your permission at any time. For more information please see our Privacy Statement.

    Related publications

    Employment contract: 8 clauses that should be included

    What may or may not be included in an employment contract, what do the various provisions mean and what do you have to bear in mind?

    Read more

    Highly skilled migrants: salary thresholds for 2026 and possible stricter rules

    The salary thresholds for highly skilled migrants and European Blue Card holders are adjusted annually. What will be the amounts for 2026? Also, stricter rules for the highly skilled migrant scheme are proposed. What might change?

    Read more

    On-call employees

    On-call contracts offer many advantages for both employers and on-call employees. However, there are also a few rules that they need to take into account. What are they?

    Read more

    Personnel: Are you allowed to dismiss a drunken employee?

    What shall we do with the drunken employee? Sack him? That isn’t always allowed. Alcohol abuse may be the result of an addiction and in that case the prohibition on termination during illness may apply. What do you have to take into account when dismissing an employee due to alcohol consumption?

    Read more

    24 November: Equal Pay Day: wage transparency for women and men

    24 November 2025 was Equal Pay Day in the Netherlands: the day of the year when men have earned on average as much as women in a whole year. How can the European Directive on wage transparency ensure that men and women are paid equally?

    Read more

    Prevent the AI Act from taking you by surprise: how to limit the risks

    Almost all companies now use some form of AI. This means that they may be subject to the prohibitions and regulations set out in the European AI Act. How can you ensure that you comply with these rules?

    Read more