The research aimed to evaluate and examine the influence of additional employee income and professionalism on performance through job satisfaction of civil servants at the Environmental Service, directly or indirectly through the intermediate variable, i.e., job satisfaction. This approach to analysis is quantitative. The Soppeng Regency Environmental Service carried out the place of research. The sample consisted of 103 staff members. Statistical research is based on route analysis, and the findings showed 1) the additional income and professionalism of employees have a direct impact on work satisfaction and efficiency. 2) It has an indirect effect on extra pay for employees and professionalism on efficiency through job satisfaction, in this case. The more successful additional income for employees and improved professionalism will further improve civil servants' job satisfaction at the Soppeng Regency Environmental Service Office, which will have an impact on improving the performance of employees.