The analysis presented in the article aims to distinguish among the laws applicable to family law issues and the law applicable to an individual employment contract that com­pete in the context of the problems related to both fields: family law and labour law. Thus, the principle – estab­lished within the regime primaire – of the autonomy of one spouse from the other spouse in taking up employment or in collecting and managing the earnings from his or her work falls within the conflict-of-laws category of “person­al relations between spouses”. The question of the right to compensation for an extraordinary contribution to the maintenance of the family, such as that provided for in the Swiss legal system, is governed by the law applicable to maintenance obligations. The question of the right to compensation for work in the interest of the family, such as that provided for within the separate property regime in the Spanish legal system, is covered by the scope of ap­plication of the law applicable to a matrimonial property regime. In the same way one should characterise the rules of a matrimonial property regime that determine the fate of remuneration for work and of objects used to perform a profession. The question of who is the legal represent­ative empowered to give consent to the conclusion of an employment contract by a child, is governed by the law designated by the Hague Convention of 1996 on Parental Responsibility, provided that the child is less than 18 years old and that a bilateral convention does not take prece­dence. The question of the parents’ competence to man­age assets acquired by their child through his or her work should be characterized in a similar manner.