The article focuses on the analysis of social contracts at the level of the workplace, their classification from the point of view of sources of labor law. In the Polish legal system, the legal nature of social packages has not been determined. Depending on the parties that conclude such agreements and the content of these agreements, we distinguish between normative and non-normative social packages. The legal nature of a social packages determines the legal regime that will apply to it, and the rules for its interpretation. 