This article studies the impact of the Bolsa Família Program (BFP) on time spent in school, its components (enrollment, attendance, and school journey), and on the reasons students dropout or show low-attendance. The research uses data from the National Household Sample Survey (PNAD) for the years 2004 and 2006. During this period, the BFP coverage expanded by 67% enabling to test the dosage-effects of the program. The tests could not refute the hypothesis related to the impact of the BFP on time spent in school, and any of its components.