This work aims to deepen the understanding of the systematics of simple partnerships in the strict sense and specifically to identify the legal regime of the partners' liability in this type of partnership, through an analysis of the provisions of the 2002 Civil Code and comparing them with similar provisions of Swiss and Italian legislation that served as its inspiration. The problem lies in the isolated exegesis of article 1,023 of the Civil Code, or in the combined exegesis of this provision with article 997, item VIII, of the same legal instrument, resulting in different interpretations. The hypothesis established in this work takes into account that the partners' liability for the obligations of the simple partnership towards third parties will depend on what is stipulated in the respective articles of association, as permitted by article 997, item VIII, of the Civil Code, and that the application of article 1,023 of the same code is conditioned by that contractual provision. For the purposes of this work, the methodology adopted was exploratory and based on bibliographic sources.