By reiterating that a difference in treatment related to a marital link with the employer constitutes unlawful discrimination, the Court of Cassation provides an essential clarification for companies, leaders, and employees. Professionals and employers must now be extra vigilant to ensure strict equality of treatment within teams, regardless of family context. A look back at a landmark decision on wage discrimination.
A Revealing Case: When Marital Ties Lead to a 62% Salary Gap
On April 9, 2025, the social chamber of the Court of Cassation issued a particularly notable ruling (Cass. soc., April 9, 2025, No. 23-14.016). Two parliamentary assistants perform comparable functions within a deputy's office. Yet, one of them is paid 62% more than her colleague. A difference in treatment all the more marked as it is accompanied by specific bonuses.
The reason? This better-paid assistant is also the employer's wife. The other, neither niece, sister, nor spouse of the deputy, is thus disadvantaged—not because of her skills, but because of her lack of family ties with the elected official.
This situation raises an unprecedented legal question: can not belonging to the employer's private sphere justify lower pay for an equivalent position? For the Court, the answer is unequivocal.
The Legal Principle: Prohibition of Discrimination Based on Family Situation
Article L. 1132-1 of the Labor Code formally prohibits any discrimination based on personal criteria unrelated to professional skills, including family situation. This text protects employees throughout their career in the company against inequalities in treatment in terms of:
- hiring,
- pay,
- promotion,
- sanctions,
- or termination of the employment contract.
Here, the Court rules that the pay difference based solely on the absence of a marital link with the employer constitutes prohibited discrimination. In other words, an employee cannot be disadvantaged simply because they do not share a personal link with their superior.
This analysis is also based on European case law, particularly the CJUE's Coleman ruling (2008), which states that protection against discrimination extends to cases where an employee is treated unfavorably due to their link with a person belonging to a protected group. Transposed to the context of this case, this logic allows the observed difference in treatment to be qualified as indirect discrimination.
Practical Lessons for Companies and Leaders
For any company, especially small or family-run structures, this decision is a strong signal. It requires revisiting certain informal practices and reminds that:
- No pay distinction can be based on a non-professional criterion;
- The employer must be able to justify any difference in treatment with objective, measurable elements related to the exercise of functions;
- Personal or family relationships cannot, in any way, form the basis of an advantage or disadvantage;
- In case of dispute, the burden of proof is shared: it is up to the employee to provide elements suggesting discrimination, then to the employer to prove the absence of unequal treatment.
This rigor is all the more necessary as the judge does not require direct proof of discrimination: comparative elements (pay slips, job descriptions, testimonies) may suffice to overturn the presumption.
What to Do in Case of Suspected Wage Discrimination?
When an employee believes they are a victim of discrimination due to the absence of a personal or family link with the employer, several steps can be initiated:
- Gather concrete comparison elements (work documents, pay slips, recurring exchanges).
- Request a formal meeting with the employer to obtain explanations.
- Call on staff representatives, the CSE, or the Defender of Rights.
- Consider a labor court action if no amicable resolution emerges.
In any case, this action aims not only to restore fairness but also to demand transparency in pay criteria.
A Jurisprudential Advance with Strong Symbolic and Operational Impact
By its scope, the April 9, 2025 ruling goes far beyond the sole parliamentary case. It consolidates a demand for equality in companies where the line between personal life and professional activity can be blurred—family startups, SMEs run by a close circle, political or associative structures.
It reminds that the loyalty of the employment relationship is based on objectively verifiable professional criteria. Competence and performance must be the only foundations for pay differences.
For leaders, it is an invitation to audit their personnel management practices, particularly in defining pay levels, to identify potential risks of direct or indirect discrimination.
As a firm committed to companies and leaders, PY Partners supports its clients in securing their pay policies against non-discrimination law and avoiding high-stakes reputational social disputes.
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