Australia's national legislation and policy have affirmed the right of children with disability, including developmental disabilities to inclusive education. Yet, policy reviews and empirical research have raised concerns about the misalignment between inclusive policy and practice across Australian states. Drawing from these sources, this article endeavors to reflect upon the divide between the Australian policy on inclusive education and inclusive practice by considering the advances, obstacles, and challenges in achieving systemic inclusive education in the Australian education context. In the last part, we offer four propositions that could close the gap between policy and practice and enable students with developmental disabilities to have access and be successful learners in their local mainstream school.