An employee satisfaction survey is in most cases subject to mandatory approval under the Dutch Works Councils Act (WOR). The works council (OR) has the right of consent when a survey involves the collection and processing of employees' personal data, or when it forms part of a system that records behaviour or performance. In this article, we answer the most frequently asked questions about works council consent, privacy, and practical collaboration in an employee survey.
When does the works council have the right of consent?
The works council has the right of consent under Article 27 of the WOR when an employer wants to make a decision about arrangements that affect working conditions, HR policy, or the processing of employees' personal data. In practice, this means that any system or arrangement that structurally collects data about employees is in principle subject to mandatory consent.
The right of consent does not apply only to new arrangements. A material change to an existing survey — such as a different measurement frequency, a new platform, or different questions — also falls under the right of consent. The works council must therefore be involved in good time, not only after decisions have already been made.
In practical terms, there are two situations:
- The employer wants to introduce an employee satisfaction survey for the first time.
- The employer wants to structurally adjust, expand, or replace an existing survey with a continuous listening model.
In both cases, it is advisable to proactively inform the works council and formally request consent before the survey is set up or rolled out.
Does an employee satisfaction survey fall under Article 27 of the WOR?
Yes, an employee satisfaction survey generally falls under Article 27 of the WOR, specifically under subsection 1(k): arrangements in the field of processing personal data of persons working in the organisation. Because an employee survey by definition collects and processes data about employees, consent from the works council is required.
Article 27 of the WOR also refers to subsection 1(l), which covers systems that monitor or assess the behaviour or performance of employees. An employee satisfaction survey is strictly speaking not an appraisal system, but as soon as results are linked to teams or managers, it touches on this article.
An important distinction: the consent requirement applies to the arrangement (the decision to introduce a survey and how it is structured), not to each individual measurement. Once the works council has approved the design and the privacy protocol, you do not need to request consent again for each new round, as long as the design does not change materially.
What are the consequences if the works council was not asked for consent?
If you introduce an employee satisfaction survey without requesting works council consent, the decision is null and void. The works council can ask the cantonal court to annul the decision. Employees may also refuse to participate in a survey for which the works council has not given consent.
Beyond the legal risks, there is a practical consequence: support for the survey drops sharply. An employee survey that employees experience as imposed or unsafe produces a low response rate and unreliable results. Particularly in an employee satisfaction survey, trust is the foundation for honest answers.
The damage is therefore twofold: legal and organisational. Both can be avoided by involving the works council early — not as a formality, but as a genuine partner in the conversation.
How do you involve the works council in an employee survey?
You involve the works council in an employee survey by preparing the consent request in good time and in full. In good time means: before you select a supplier or draft a questionnaire. In full means: including the purpose, methodology, data processing agreements, and privacy protocol.
An effective process looks like this:
- Inform the works council at an early stage about the intention to introduce or change an employee satisfaction survey.
- Share the survey proposal, including the objective, questionnaire, measurement frequency, and how results will be reported.
- Discuss the privacy protocol and document how anonymity is guaranteed, who has access to the data, and how long data is retained.
- Formally request consent via a written consent request. The works council then has six weeks to respond.
- Record the consent in a written agreement or regulation.
A works council that understands and trusts the survey becomes an ally rather than an obstacle. That makes all the difference for response rates and the usability of the results. Via measuring employee experience you can read how to set up a survey that is clear and trustworthy for the works council as well.
What must a privacy protocol for an employee survey include?
A privacy protocol for an employee satisfaction survey describes how personal data is collected, processed, secured, and retained, in line with GDPR. The protocol is a mandatory part of the consent file and gives employees insight into how their data is handled.
A complete privacy protocol contains at minimum the following elements:
- Purpose of data processing: what the responses are used for and at what level results are reported.
- Anonymisation threshold: the minimum number of respondents per reporting unit (typically five or more) to prevent traceability.
- Data processing agreement: an agreement with the software supplier that stipulates that data is not used for other purposes.
- Retention periods: how long raw data and reported results are retained.
- Access rights: who may view the results and at what level of detail.
- Right of access and correction: how employees can exercise their rights under GDPR.
A good privacy protocol is not only a legal requirement — it is also a communication tool for employees. When they know their answers are safe and will not be used against them, they are more honest and open in their feedback.
When is consent required for a continuous listening model?
A continuous listening model — in which employees are surveyed structurally and regularly via pulses or short questionnaires — is subject to mandatory consent as soon as it constitutes a structural arrangement for data processing. The fact that measurements are more frequent or lighter than an annual employee survey does not change the consent requirement.
A continuous listening model also raises additional considerations. Because data is collected on an ongoing basis, the risk of traceability is greater, especially in small teams. The works council will rightly ask questions about this. Explicitly document in the privacy protocol how you handle small groups and how you prevent a manager from identifying individual employees in the data.
If you want to move from an annual employee satisfaction survey to a continuous model, a new consent request is necessary. After all, the design, frequency, and data processing logic change materially. Do not see this as an obstacle, but as an opportunity to bring the works council along in understanding the added value of continuous listening: faster signal detection, faster action, and greater trust among employees.
How CYS Group helps you conduct a careful employee survey
Setting up an employee satisfaction survey that is legally sound, convinces the works council, and genuinely delivers value for employees requires more than sending out a questionnaire. CYS Group supports organisations throughout the entire process, from design to follow-up.
What we concretely offer:
- A GDPR-compliant and ISO 27001-certified platform (cx.management) with built-in anonymisation thresholds and a data processing agreement.
- A privacy protocol that meets WOR requirements and can be used directly in the works council process.
- The 3-question methodology and the driver model, so you not only know how satisfied employees are, but also why — and what to address first.
- Support for the transition from an annual employee survey to a continuous listening model, including guidance through the works council process.
- Team reports that managers can use directly, without individual employees being identifiable.
Want to see what a carefully designed employee survey looks like in practice? Get in touch and we'd be happy to think along with you.
Make every experience count.
Frequently Asked Questions
What happens if the works council objects to the employee satisfaction survey?
If the works council objects or refuses consent, you may not proceed with the survey. You can then enter into consultation to resolve the objections — for example by tightening the privacy protocol or adjusting the reporting structure. If agreement cannot be reached, the employer can ask the cantonal court to grant substitute permission, but this is a time-consuming and costly process that is best avoided by involving the works council early and seriously.
Do you also need works council consent for a one-off, anonymous employee survey?
Even a one-off survey in which personal data is processed falls in principle under the mandatory consent requirement of Article 27 of the WOR. Purely anonymous measurements in which there is absolutely no possibility of linking data to individuals or small groups may fall outside the consent requirement, but in practice this is difficult to guarantee conclusively. When in doubt, it is always advisable to inform the works council and jointly assess whether a formal consent request is necessary.
How long does the works council consent process typically take, and how do you plan for it?
By law, the works council has six weeks to respond to a formal consent request, but in practice the process starts earlier: allow for a total lead time of two to three months from the first conversation with the works council to formal consent. Plan the works council process therefore before you select a supplier or draft a questionnaire. By involving the works council as early as the exploration phase, you reduce the risk of delays and increase support.
What questions does the works council typically ask about an employee satisfaction survey?
The works council typically focuses on four themes in an employee satisfaction survey: anonymity assurance (how certain is it that individual responses cannot be traced?), access to data (who sees which results at which level?), use of the outcomes (what does the employer do with the results and who decides?), and retention periods for the raw data. By proactively addressing these questions in your consent file, the works council process runs more smoothly and quickly.
What is the minimum anonymisation threshold and why is it so important?
The most commonly used anonymisation threshold is five respondents per reporting unit: results are only made visible once a team or group has at least five completed questionnaires. For smaller groups, scores are not shown or are combined with another unit. This threshold is crucial because employees will only answer honestly if they are certain that their responses cannot be traced back to them personally; a threshold that is too low undermines trust and therefore the quality of the data.
How do you ensure that employees actually participate in the survey?
A high response rate starts with trust: employees need to know that their answers are anonymous, that something will be done with the results, and that the works council has approved the survey. Communicate clearly in advance about the purpose, anonymity assurance, and what will happen with the outcomes. Also ensure that the questionnaire is short and relevant, and give managers an active role in the follow-up — because nothing boosts the next response rate more than making it visible that the previous round led to concrete changes.
Does the data processing agreement with the software supplier also need to be submitted to the works council?
Yes, the data processing agreement with the software supplier is a mandatory part of the consent file, as it is a core element of privacy assurance. The works council needs to be able to verify that the supplier does not use the data for its own purposes, that data is stored securely, and that there are clear agreements about data breaches and retention periods. A supplier that offers a GDPR-compliant data processing agreement as standard makes this part of the works council process considerably easier.
