This study aims to analyze the factors that influence innovative work behavior in the Public Sector, namely in the Regional Revenue Agency of West Java Province. The role of mediating, organizational citizenship, behavior, and knowledge-sharing is tested in the influence of transformational leadership on innovative work behavior. The quantitative approach with survey methods is used in this research. Data collection is a cross-section of data. The questionnaire was distributed to 300 samples, using stratified random sampling techniques, collected as many as 292, and exceeded the minimum sample number of 273 employees. The results showed the factors that influence innovative work behavior are transformational leadership is mediated by organizational citizenship behavior but not by knowledge-sharing. This study found that transformational leadership has a positive effect on innovative work behavior, also through organizational citizenship behavior. Indirect influence has a greater estimated coefficient value compared to direct influence. Knowledge sharing acts as a variable that directly affects innovative work behavior. In future research, it is necessary to expand testing with different variables and research methods.