Understand how the NDIS works, from eligibility and supporting evidence to funding, plan management, and reviews through our NDIS guide for adults.
Written by: William Huynh, Director of Brighter Futures Allied Health
Published: 12 July 2026
Disclaimer: This content is for general informational purposes only. It does not constitute clinical or funding advice, and outcomes may vary based on individual circumstances and NDIA determinations.
The NDIS is designed for Australians who have a permanent and significant disability that affects their ability to take part in everyday life. Before applying, it is important to understand the eligibility requirements and the evidence needed to support one’s application.
The NDIS has three main eligibility requirements: age, residency, and disability. To be eligible, applicants must:
The NDIA assesses both the circumstances and the evidence supporting the application. This may include reports from health professionals that explain the impact of one’s disability on daily life.
Clinician’s Notes: Children participating in the NDIS often rely on a parent or carer to make decisions about supports. When a participant turns 18, decision-making generally shifts to the participant, who becomes responsible for directing their own NDIS plan and services. Understanding this transition early can make the move to adult NDIS supports much smoother for everyone involved.
The NDIS supports people with a wide range of physical, intellectual, neurological, sensory, and psychosocial disabilities. There is no single list of qualifying conditions, as eligibility depends on the impact of the disability on your functional capacity and everyday activities.
Some conditions may have clearer evidence pathways than others, but all applications are assessed individually.
Participants must provide documents that confirm their identity, age, and residency status. This information is used to assess whether the basic access requirements for the NDIS have been met.
Disability evidence confirms that an impairment is permanent or likely to be permanent. This is typically provided through reports, assessments, or supporting documentation from treating health professionals.
Functional impact evidence explains how a disability affects everyday activities and participation. This may include information from therapists, carers, support workers, and other professionals who can describe the participant’s support needs in daily life.
An NDIS budget is divided into funding categories that support different aspects of a participant’s life. The funding available within each category will vary depending on a participant’s individual circumstances, goals, and approved NDIS plan.
Clinician’s Notes: Compared with children’s NDIS plans, there is an increased focus on independence, employment, and community participation in adult plans. In addition to therapy and assistive care, funding may be used to build job readiness skills, explore vocational pahtways, and support involvement in social and community programs that align with personal goals. These supports can play an important role in helping participants build confidence, develop meaningful connections, and prepare for greater independence over time.
NDIS plans are reviewed to ensure supports continue to meet a participant’s needs, goals, and circumstances. Reviews can be an opportunity to discuss progress, identify new support needs, and make adjustments where appropriate.
The timing of an NDIS plan review (now called a plan reassessment) can vary depending on the participant’s circumstances and the type of plan in place. A review may be appropriate when there have been significant changes that affect a participant’s goals, support needs, or daily life.
Examples may include:
Clinician’s Notes: Many people assume NDIS support ends when a participant turns 65, but that isn’t usually the case. Participants who entered the NDIS before age 65 can generally continue receiving NDIS supports for the rest of their lives. In my experience, it’s more helpful to focus on how support needs may change over time rather than viewing age as a reason to leave the scheme.
Choosing an NDIS provider is about finding a team that understands a participant’s goals, needs, and circumstances. Taking the time to compare providers can help ensure supports are delivered safely, effectively, and in a way that aligns with individual needs.
When comparing providers, consider:
While both registered and non-registered providers can deliver NDIS services, NDIS-registered providers are required to meet strict quality, safety, and compliance standards. For many participants and families, this can provide additional confidence when navigating the NDIS and accessing ongoing support.
For those who are new to the NDIS, consider this NDIS guide for adults as just an initial reference. Speaking with a qualified NDIS-registered allied health provider can be the helpful first step to learning more about the whole process. Professional guidance can provide clarity around eligibility, evidence requirements, plan management, and the supports available through the scheme.
William Huynh is a senior speech pathologist and the director of NDIS-registered provider Brighter Futures Allied Health. He has over a decade of experience working with children and adults with complex communication needs, including disability, dysphagia, and acquired language impairments. William has completed specialist training in approaches such as Key Word Sign, LAMP Words for Life, Grid 3, and Hanen’s More Than Words. He also supervises speech pathologists and student placements, supporting evidence-based and family-centred practice.
