The aim of this study was to investigate the implementation and sustainability of Free Primary Education (FPE) in Swaziland in terms of the interplay between policy and practice. The study was undertaken in four schools in the Manzini region of Swaziland. The schools were purposively sampled on the basis of their location. The participants consisted of the head teacher, a teacher and a parent, and six learners from each of the schools. Two Ministry of Education and Training (MoET) officials were also included; a regional inspector for primary schools stationed at the Manzini Regional Education Offices (REOs) and a senior official stationed at MoET headquarters. A qualitative approach and a case study design were used. The participants were interviewed using semi-structured interview schedules, while the learners were engaged in focus group interviews at each school which were conducted according to a focus group interview schedule. Documents were also used as data sources. Data was analysed using a thematic and document analysis approach. The findings revealed a disconnection between policy and practice. FPE implementers are not well versed on the policies they are supposed to implement as they were not included in the policy-making process. Moreover, no consideration had been given to the legal framework underpinning FPE. It was found that the sustainability of FPE is threatened by certain indirect costs of schooling as well as the top-up fees that are being charged illegally by some schools, resulting in some learners dropping out of school – defeating the purpose of FPE and violating their right to access education. It would appear that the most contentious issue for FPE in Swaziland is the top-fee, although the head teachers were of the view that the FPE grant paid by government is inadequate for running schools and therefore top-up fees are necessary. Problems were also identified with the embezzling of school funds by head teachers. These issues have led to tension between schools and the MoET / Educational Leadership and Management / D. Ed. (Education Management)