The present thesis addresses the issue of assessment of employees in an organization in the public administration. Assessment of employees is a key motivation factor in human resources management, and it is one of the tools to achieve the employees' productivity. At the same time the assessment helps increase the prestige of the authority and satisfaction of the citizens. The aim of the present thesis is to analyze the current state of the system of assessment in an organization in the public administration, to look for deficiencies in the system as they influence the motivation of employees, and to propose changes for improvement. The first part of the thesis presents the theoretical framework of performance management, the theory of work motivation, assessment, and the remuneration of employees. In the practical part of the thesis the municipal office in question is introduced, and the current situation of the employees assessment system is analyzed. This part also includes the results of the realized questionnaire. The final part brings recommendations which can help the organization to increase the efficiency of the employees assessment.