Background: The National Disability Insurance Scheme (NDIS) offers opportunity against a historical background of underfunded and fragmented services for people with disability. For people with acquired brain injury (ABI), concerns have been raised about how they access NDIS individualised funded supports. The aim of this research was to explore how community-dwelling individuals with ABI in Queensland navigate the NDIS participant pathway to individualised funded supports. Methods: This study used a multiple case study design within a policy implementation framework. Twelve people with ABI, nine family members and eight NDIS funded and mainstream service providers participated. Data was collected from relevant NDIS documentation, health records and semi-structured interviews with individuals with ABI, family members, and service providers. Results: The current study highlighted the complexity of navigating the NDIS participant pathway of access, planning, implementation and review for people with ABI, their family and service providers. The NDIS pathway was impacted by the insurance and market based NDIS model itself, time, communication, and the requirement for external supports. Equally, the process was affected by environmental factors, individual person and injury factors as well as service providers, with a range of outcomes evident at the individual, family and system level. Conclusions: Findings suggest that the NDIS has struggled to make specific allowance for people with ABI and the complexity of their disabilities. Providing people with ABI access to the NDIS Complex Support Needs Pathway may redress many of the difficulties people with ABI experience accessing and using NDIS funded supports.