Individual career planning is a process in which the individual determines his/her career-related goals and uses the means to achieve these goals. While there are many factors affecting this process, one of these is the phenomenon of perceived over qualification, expressed as the idea of having an individual's skills and training exceeding certain job requirements. On the other hand, in the background of the many behaviours that an individual exhibits in his / her work life, the individual's perception of support for his organization lies. In this context, in this study, the effect of perceived organizational support on the perceived over qualification and the relationship between individual career planning is tried to be examined. For this purpose, a quantitative research was conducted. Data were obtained from public and private sector employees in Bitlis, Turkey. Reliability, validity, exploratory factor and hierarchical regression analyses were performed on the data. In the analyses conducted, it was determined that the perceived organizational support had a moderator effect on the relationship between perceived over qualification and individual career planning. In addition, it was found out that the education level had a moderator effect from the control variables. In addition to contributing to the literature, the research is also expected to guide business managers.