The 5% threshold under the Pay Transparency Directive: What does it really mean in practice?

To properly understand the 5% threshold, it is essential to distinguish the context in which it is applied. Its role is closely linked to reporting obligations and the systematic monitoring of gender pay gaps, whereas its relevance in the context of individual employees’ rights is far more limited, if not negligible.

The Directive introduces the 5% threshold as a tool for identifying potentially problematic pay disparities at the level of the organisation or within specific categories of workers. Where the difference in average pay between women and men exceeds this threshold and cannot be objectively justified by gender‑neutral criteria, the employer may be subject to additional obligations. In such cases, the Directive envisages the conduct of a joint pay assessment, involving workers’ representatives, with the aim of analysing the causes of the disparity and identifying appropriate corrective measures.

In this context, the 5% threshold serves a clear function in the area of reporting. It is not designed to assess the lawfulness of individual pay decisions, but rather to signal that certain differences warrant a more in‑depth, systematic review. It is therefore a procedural and preventive mechanism, not a substantive benchmark of legality.

Difficulties arise when this threshold is transposed from the reporting context into the sphere of individual employee rights. The Directive does not recognise the concept of a “permissible” pay difference up to a certain percentage. A pay disparity, regardless of whether it amounts to one, three or four per cent, may still be legally relevant if it lacks objective justification. In this respect, the 5% threshold offers no protection to employers.

When an employee requests information about their pay, or about the criteria used to determine pay for work of equal value, the size of the percentage difference is not decisive. The critical question is whether the employer can clearly and convincingly explain the reasons for the difference, based on objective, gender‑neutral and consistently applied criteria. In addition, the 5% threshold cannot serve as grounds for refusing to provide information, nor can it be used to dismiss an employee’s request.

The reason the 5% threshold is so often misunderstood in practice lies in the natural desire for simple rules within a complex regulatory framework. Employers understandably seek clear limits and safe harbours. However, the Pay Transparency Directive deliberately moves away from such an approach. Its objective is to strengthen transparency and accountability, not to introduce new tolerance thresholds.

From an employer’s perspective, the 5% threshold should therefore be viewed as an internal diagnostic tool and a component of broader risk management. It can help identify areas where further analysis and adjustment may be required, but it should never be treated as a substitute for a well‑designed pay system. Such a system must be built on clearly defined criteria, applied consistently, and capable of being explained not only statistically, but also legally.

Conclusion and recommendations

The 5% threshold introduced by the Pay Transparency Directive is often perceived in practice as a clear dividing line between what is acceptable and what is not. However, such an interpretation does not reflect the actual logic of the Directive nor the way its provisions are intended to operate in practice. The threshold plays a role in the context of reporting and the systematic monitoring of gender pay gaps, but it does not constitute a benchmark for the lawfulness of individual pay decisions, nor does it limit employees’ rights.

Employers are therefore advised to view the 5% threshold primarily as a signal for internal review, rather than as a protective mechanism. Its purpose is to highlight areas where pay structures, job evaluation criteria and their practical application should be reassessed, particularly from the perspective of objectivity, gender neutrality and consistency.

When communicating with employees, and especially when responding to requests for pay‑related information, the focus should not be on percentages but on the quality of the explanation. Employers should be able to clearly articulate the reasons for pay differences by relying on objective, predefined and consistently applied criteria, rather than on ex post justifications.

From a legal and reputational risk management perspective, it is advisable for employers to prepare their pay systems in advance for an increased level of transparency. This includes reviewing existing policies, documenting pay‑setting criteria, ensuring their consistent application, and being prepared for constructive dialogue with employees and their representatives.

Ultimately, the strongest safeguard for employers does not lie in keeping pay differences below a certain percentage, but in having a transparent, coherent and defensible pay structure. The 5% threshold is a regulatory indicator; responsibility for the justification of pay differences remains with the employer, regardless of the figures involved.