The goal of this article was to identify and characterize the socio-economic effects of the introduction of the “Family 500+” program in Poland. The research part focused on checking the implementation of the assumptions, which were placed on the introduction of the "Family 500+" program. The main focus of the study was fertility, the improvement of which is a key goal of the program. The research methods used in the article were: data analysis method - data on the number of births of children in Poland, the fertility rate as well as the method of synthesis, inference and interpretation were analyzed. On the basis of the data analysis, conclusions were drawn and their nature explained. This was done in order to reflect on the effectiveness ...