Starting school is a critical event in a child's life and successful transitions to school have been posited as key indicators for future academic achievement. For children with autism spectrum disorder (ASD), the process is complicated by difficulties in social communication and social interaction. Parents of children with ASD can experience their child's transition to school as a stressful and challenging time. In this study a qualitative methodology, Interpretative Phenomenological Analysis (IPA), was used to elicit the experiences and perceptions of six parents whose children with ASD were starting school in Ireland. Semi-structured interviews were carried out and a cross-case analysis was conducted. Three common overarching themes were identified which reflected participants' experiences of the transition process; these were (a) "I think they need to 'believe,' believe what we're telling them", (b) "Experience of ASD/it's a very labelling thing", and (c) "Preparing for school and feelings about the future". Implications from the research are discussed with reference to the role of the educational psychologist (EP) in supporting parents of children with ASD in the transition process.