This article discusses the career development system for teachers in the Republic of Bulgaria. Career development is defined as the ongoing process of improvement of competences in the occupation of teaching or educational positions, or in the acquisition of degrees in order to increase the quality and efficiency of education. The professional development of teachers requires continuous improvement of qualifications, in order to acquire new and additional knowledge, professional and research skills; to realize the goals of the school and create a drive for its development. Career development is associated with increased prestige, more responsibilities and corresponding compensation.