Phenomenological design was used in this research to determine the experiences, opinions and suggestions of the stakeholders in the Individualized Education Program (IEP) development team during the IEP preparation process. Nine parents 20 teachers and a school administrator who were in the IEP team and took part in the IEP preparation process participated in the research. Researcher diary, demographic data form, observation and semi-structured interviews were used in accordance with the principle of data triangulation while collecting data from the participants. The data were analyzed with the QSR Nvivo 11 package program. As a result of the research, it was concluded that parents should be involved in the IEP development process, but this would be possible depending on some preconditions, and one of these preconditions was family education. It has been observed that the stakeholders in the team have developed a communication system based on information sharing. It was observed that the stakeholders had difficulties in the IEP preparation process due to reasons such as insufficient training on the process, insufficient knowledge about the process and laws, and inexperience. According to another result of the research, it was stated that it would not be appropriate for individuals with special needs to take part in the IEP preparation process, but they could be included in the process if certain conditions were met. In addition, as a result of the research, various suggestions were presented on deep research and applications for the IEP development process.