3.3 What Employers Can Ask About Dutch Sick Leave: ICS Payroll Ensures Compliance

When a Dutch employee calls in sick, managers need information for work planning, but Dutch employment law creates strict boundaries on what questions are permitted. ICS Payroll's employer-of-record model removes the guesswork by handling the formal sick-leave process, so managers can focus on a simple, compliant approach that protects both the employer and the employee.

What Managers Can Legally Ask During a Sick Call

When an employee reports sick in the Netherlands, the manager can ask three categories of questions. First, an expected return date: this serves workforce planning and is explicitly permitted under Dutch law. Second, logistical questions about ongoing work or handover needs, such as what projects need handoff or who should take over responsibilities. Third, whether the employee needs occupational health support or can work modified duties from home during recovery. Business.gov.nl says an employer may ask for an expected return date but cannot request specific illness details or the cause. These permitted questions focus on recovery timeline and work logistics, not on diagnosis or medical status. The framework is simple: ask about timing and work. Do not ask about health.

For employers using ICS Payroll's service, the provider handles the occupational health coordination directly, so the manager does not need to manage that detail in the initial call. This separation is core to compliance and reduces the risk that a well-meaning manager question accidentally crosses into prohibited territory.

Prohibited Medical Questions and Information Handling

Dutch law explicitly prohibits asking for diagnosis, treatment details, test results, medication, or the cause of illness. A manager cannot ask what is wrong, what the doctor said, what medication the employee is taking, or whether a specific condition is present. These questions are not permitted even if they seem relevant to work planning or scheduling decisions. Business.gov.nl says an employer may not ask for specific illness details or the cause, and this prohibition is strict: there is no exception for work-planning reasons.

Beyond the question itself, any volunteered medical information must not be recorded by the manager or shared with others. This is a separate data-protection obligation under Dutch law. The employer must not retain medical details in files, emails or notes. Storing health information about an employee violates GDPR unless the employee has explicitly consented and the purpose is narrowly defined. Even if an employee volunteers information during the sick call, the manager must not write it down or include it in any report to colleagues. ICS Payroll, when acting as legal employer, takes these obligations seriously across all absences and ensures managers are guided to record only the essential facts.

Why Medical Boundaries Exist in Dutch Employment Law

The legal framework delegates medical assessment to occupational health professionals, not managers. The employer must have a basic contract with an occupational health and safety service or company doctor. This professional relationship is the only proper channel for medical information and fitness assessment. Managers lack the medical training and confidentiality obligations that health professionals provide. By prohibiting managerial medical questioning, the law separates occupational health (a professional function) from workforce administration.

If a manager needs medical information for reintegration or accommodation purposes, the occupational health service obtains it through its own professional relationship with the employee, not through the manager's sick call. This separation protects both the employee's privacy and the employer from liability for data misuse. A manager who tries to extract medical details creates compliance risk and may violate confidentiality obligations. This is why ICS Payroll, as legal employer, coordinates the occupational health relationship directly and keeps managers out of the medical assessment process entirely.

The Practical Approach for Foreign Managers

When taking a sick call, follow this framework. First, confirm the date: I have received your notification that you are unable to work today. Second, ask for a timeline: Do you expect to return tomorrow, or should I plan for a longer absence? Third, listen without judgment. If the employee volunteers medical information, acknowledge it briefly and do not ask follow-up questions. After the call, report to the payroll administrator or occupational health coordinator only the date, expected return, and any work-logistics facts. Do not include any health details in that report. This simple discipline keeps the manager safe and keeps the employer compliant.

ICS Payroll, when acting as legal employer, takes the report from there and coordinates with the occupational health service directly, ensuring clear separation of responsibilities. The manager's role is complete after the initial call and recording the expected return date. See Dutch sick leave obligations to understand what happens next in the formal process.

Data Handling and Compliance During Absence

Managers should maintain minimal written records of sick calls. Record only: date, expected return date, and any logistical facts such as the employee traveling or working from home. Avoid email confirmations that reference anything the employee said about health or symptoms. If you must send an email to confirm the call, keep it factual: Confirmed absence on [date], expected return [date]. Never include the phrase "employee mentioned" followed by any health detail. All employment law content pertaining to absence handling is reviewed and fact-checked by labour law lawyer Zishan Hussain, the firm's lawyer responsible for employment contracts, CAO application and dismissal law. This review covers both the statutory questions managers can ask and the data-handling rules that follow. Data mishandling triggers GDPR complaints and labor disputes that are expensive to defend. ICS Payroll's compliance guarantee covers these data-handling obligations, so the legal risk falls on the provider, not the manager or the hiring company.

The Occupational Health Service's Role After the Initial Call

Once the manager's call is logged, the payroll or HR administrator notifies the occupational health service. The occupational health service, not the manager, contacts the employee to assess recovery, discuss accommodations, and plan reintegration. The manager is not involved in this professional conversation. This separation ensures that health assessment remains confidential and professional throughout the process. When illness extends into longer absences, the occupational health service coordinates with the employee and the employer about return-to-work possibilities: modified duties, phased returns, or ongoing treatment needs.

ICS Payroll manages this transition and ensures the occupational health service is engaged at the right time. This means the manager's role is complete after the initial call. The formal sick-leave process, reintegration planning, and all medical coordination flows through the provider and the occupational health service, not through the manager. For managers at foreign companies, this delegation is essential. Dutch sick-leave law requires active occupational health coordination, and managers who try to handle this themselves create compliance gaps. See the true cost of a Dutch employee for the financial picture.

A final note: the boundary between permitted and prohibited questions is not a suggestion. Dutch labor inspectors audit sick-leave procedures, and violations of data-handling rules trigger GDPR fines. The correct approach is simple, documented, and scalable. For the manager's role in the first sick call, see what you can ask an employee for a detailed walkthrough with examples.