Posted Worker Notifications in the Netherlands: What Foreign Employers and Dutch Clients Need to Know

A practical guide to notification duties, client checks and fines under the Dutch Posted Workers rules

A foreign contractor arrives on a Dutch construction project. The crew is scheduled, access has been arranged and the site is ready for work to begin. Then a simple compliance question stops the process: has the posted worker notification been submitted and checked?

That question matters. In the Netherlands, posted worker notification is not just a government formality. It is part of how the Dutch authorities monitor fair employment conditions, safe working practices and compliance across cross-border assignments. For employers and clients, it is also one of the easiest compliance steps to get wrong because responsibility sits on both sides of the contract.

The good news is that the process is manageable if it is built into mobilisation planning. The risk comes when the notification is left until the last minute, treated as someone else’s task, or assumed to be unnecessary because the assignment is short.

Why one notification can affect the whole project

The Dutch notification duty generally applies where an employer or self-employed person established in another EU or EEA country, or Switzerland, temporarily performs work in the Netherlands. For construction businesses, this may include subcontractors, specialist installers, temporary agency workers or self-employed individuals sent to perform work on a Dutch site.

The assignment does not need to be long to become relevant. The key questions are who is providing the service, where that company or self-employed person is established, what work will be carried out in the Netherlands, and whether an exemption applies. If the answer is unclear, it should be checked before the worker travels or arrives on site.

For construction companies, the key question is not simply whether someone is travelling to the Netherlands, but whether they will be carrying out site-based work that falls within the Dutch notification regime.

Construction-relevant exemption categories

For construction businesses, exemptions from the Dutch posted worker notification duty should be treated cautiously. Many general exemptions are not relevant to construction work, and the initial assembly or installation exemption expressly does not apply to construction-sector activities. In practice, the most relevant exceptions are limited to short non-construction visits and genuinely urgent technical support linked to supplied equipment. Where an exemption may apply, the position should be assessed and documented before mobilisation.

Construction-relevant category	When it may be relevant	Construction-specific caution
Initial assembly or installation	Specialist workers install goods supplied under a contract, where installation is essential for the goods to become operational.	This exemption does not apply to construction-sector activities. Construction businesses should not rely on it for site works, building activities, installation works that form part of construction, or similar project delivery activities.
Repairs or emergency maintenance	Urgent repairs or maintenance to equipment supplied by the foreign employer to the Dutch client, including certain software installation, modification or training.	The worker’s presence must be essential, and the stay must not exceed 12 consecutive weeks within a 36-week period. This should be distinguished from planned construction, installation or commissioning work.
Business meetings or signing agreements	Short visits to attend meetings, negotiate terms, conclude agreements, or discuss project arrangements.	The stay must not exceed 13 weeks within a 52-week period. This exemption is relevant to commercial or project meetings, not to carrying out physical construction work on site.

The practical rule for construction projects is simple: if people are being sent to the Netherlands to perform site-based construction work, assume the notification duty may apply unless a specific exemption has been confirmed. Exemptions should be checked before travel or mobilisation, particularly where the worker is a third-country national or where self-employed status is being relied on.

Determining whether an exemption applies is not always straightforward. Construction projects often involve complex working arrangements, multiple contractors and changing scopes of work, which can make reliance on an exemption difficult to assess. Where there is uncertainty, a documented exemption assessment can help reduce compliance risk and provide evidence of the basis on which the exemption was relied upon. Our team can review the specific circumstances of an assignment, assess whether an exemption is likely to apply and prepare a written exemption opinion that can be retained as part of the project compliance record and used to support discussions with clients, auditors or authorities if questions arise.

The shared responsibility: notify, check, correct

The Dutch system is deliberately designed as a shared control. The foreign employer or self-employed person submits the notification through the online portal before the work starts. The Dutch service recipient then checks whether the notification is complete and accurate. If the details are wrong, the service recipient must report the inaccuracy through the portal.

This check should not be treated as passive administration. Dutch clients normally have until five working days after the assignment starts to review the notification. In practical terms, the client-side team should know that the notification has been submitted, who will check it in the portal, and who will report inaccuracies if the details are wrong.

What information is included in a notification?

who is submitting the notification;
the foreign employer or self-employed person’s company details;
the Dutch service recipient;
the workplace address;
the sector;
the expected duration of the work;
the identity of the worker or workers; and
whether an A1 certificate or other social-security evidence is available.

The notification sits alongside other compliance checks. It does not replace employment-condition reviews, right-to-work checks, social-security documentation, tax analysis or sector-specific obligations that may apply to the assignment.

Where work is carried out under a repeat, framework or multi-site arrangement, the notification position should be checked for each posting or project phase rather than assumed from an earlier filing.

Where small admin gaps become real fines

The Dutch Posted Workers website makes the consequence clear: the duty to notify is enforceable, and fines may apply to both the foreign service provider and the Dutch service recipient. For construction projects, these amounts matter because a missed filing can sit alongside access issues, inspection delays and client escalation. The figures below show why notification should be handled before mobilisation, not after an inspector asks for evidence.

Offence	Who may be fined	Standard fine
Failure to comply with the duty to notify	Foreign employer with 1 to 10 posted workers	€1,500
Failure to comply with the duty to notify	Foreign employer with 10 to 19 posted workers	€3,000
Failure to comply with the duty to notify	Foreign employer with more than 20 posted workers	€4,500
Failure to comply with the duty to notify	Self-employed person with a duty to notify	€750
Necessary documents not available at the workplace	Foreign employer	€8,000
Necessary documents not available at the workplace	Self-employed person with a duty to notify	€4,000
Notification not reviewed	Dutch service recipient: business	€1,500
Notification not reviewed	Dutch service recipient: natural person	€750
Failure to comply with the information obligation	Foreign employer	€6,000
Failure to comply with the information obligation	Self-employed person with a duty to notify	€3,000

How to complete the notification

The notification is submitted through the official Dutch Posted Workers portal. The exact information required will depend on the assignment, but most construction businesses should expect the process to cover the sending employer, the Dutch service recipient, the worksite, the workers involved and the planned dates of the posting.

Step 1: Log in to the Posted Workers Portal

Go to the official Dutch Posted Workers portal and sign in. Employers registered with the Dutch Chamber of Commerce may use eHerkenning; other users can follow the alternative login route provided by the portal.

Step 2: Create a New Notification

Select “New Notification” and complete all required sections of the notification.

You will usually need to provide:

Employer details
Reporter details (if different from the employer)
Service recipient details
Project or worksite information
Employee details
Posting start and end dates
Description of the activities being performed

Carefully review all information before proceeding to ensure it accurately reflects the assignment.

Step 3: Submit the Notification

Once all mandatory fields have been completed and reviewed, submit the notification through the portal.

After submission, a notification reference number will normally be generated. Retain this information as part of the assignment records.

Step 4: Notify the Service Recipient

Following submission, inform the service recipient that the notification has been submitted and is awaiting their review or confirmation.

The service recipient must complete their part of the process within the portal where required.

Step 5: Share the Completed Notification with Compliance

Once the service recipient has completed the required actions and the notification status is confirmed, download or save the completed notification record.

Keep the final notification and related assignment documents together so they can be produced quickly if requested during an inspection. This will usually include:

Posted worker notification
A1 certificate
Employment documentation
Payroll records where required
Working time records where required

What to keep on file if asked for evidence

A good notification process is supported by good recordkeeping. Companies should keep the notification record, assignment documents, employment contract, A1 certificate or equivalent social-security evidence, identity and right-to-work evidence where relevant, payslips, proof of payment and working-time records available where required.

The practical takeaway

Posted worker notification is a small step with a visible impact on project readiness. If the notification is missed, unchecked or unsupported by workplace documents, the issue can quickly move from “admin” to fines, delays and difficult conversations between contractor and client.

The safest approach is to make the notification part of mobilisation planning. Before workers arrive in the Netherlands, confirm whether the assignment is reportable, agree who will submit the notification, ensure the Dutch service recipient knows how to check it, and keep the evidence ready.

Handled early, the notification process is straightforward. Handled late, it can become an avoidable compliance problem on an otherwise well-planned construction project.

Further information

Speak to Marian Quah

Marian Quah specialises in workforce compliance, cross-border mobilisation and posted worker obligations for construction and project-based businesses operating across Europe. She supports employers, contractors and clients with assessing whether notification duties apply, reviewing exemption options and preparing documented exemption opinions that can be retained as part of the project compliance record.

Contact: Marian Quah, Managing Director EMEA

For questions about Dutch posted worker notifications, construction-related exemptions or exemption letters, please get in touch with Marian to discuss how we can support your project.

This article provides general information and is not legal advice. Posting obligations can vary according to the countries involved, the worker’s status, the sector, the duration and the contractual arrangements. Requirements should be checked for each assignment.