When does the burden of proof shift to the employer?
As soon as an employee presents facts that give rise to a presumption of discrimination — such as pay gap data from the employer’s own reports or inconsistent job classification.
In a wage dispute, an employee must today prove that discrimination has occurred. In practice, this almost never happens — you have no insight into what colleagues earn. The new pay transparency directive reverses this. And most employers are not prepared for it.
Last update: April 21, 2026 · Reading time: 8 minutes
Article 18 of EU Directive 2023/970 is clear: when facts are presented that give rise to a suspicion of discrimination, the employer must prove that no discrimination has occurred. The burden of proof shifts.
Under current Dutch law, the burden of proof lies with the employee. They must provide facts that prove discrimination. Without access to colleagues' salary data, this is virtually impossible. The result: claims fail before they even begin.
Article 18 of EU Directive 2023/970 is clear: when facts are presented that give rise to a suspicion of discrimination, the employer must prove that no discrimination has occurred. The burden of proof shifts.
Important: the directive also gives employees the right to pay information — access to average pay levels per job category, broken down by gender. This makes building a prima facie case significantly easier.
An employee (or former employee) only needs to present facts that suggest discrimination. Think of:
Pay gap data from the employer's own reports
Inconsistent job classification — comparable work, different grading
Absence of objective criteria for individual pay decisions
Pay information data that the employee can request under the new law
From that point on, it's up to the employer to provide justification.
based on the 4 statutory factors: skills, effort, responsibility, and working conditions (art. 4 para 4)
for each individual grading — especially for above-CAO agreements
broken down by gender (art. 10 para 2d)
bonuses, company car, training budget and other benefits must be factored in
The risks are concrete:
payment of the difference, with retroactive effect
and mandatory pay scale adjustments
the employer bears the burden of proof, and thus the cost risk
employees who file claims must not be disadvantaged. If you do, additional penalties follow
Without documentation infrastructure, you cannot bear the burden of proof. Payqual helps employers set up job cluster classifications, pay gap analyses, and documentation of objective pay criteria — so you can provide justification immediately in a claim or audit.
As soon as an employee presents facts that give rise to a presumption of discrimination — such as pay gap data from the employer’s own reports or inconsistent job classification.
Yes. Article 18 of the directive has no company size threshold. Employers with fewer than 100 employees are also bound by the burden of proof shift.
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