Understanding the eight NDIS functional domains is the single most important step in preparing strong evidence for a plan review or home and living application.
What Are the NDIS Functional Domains?
The NDIS uses a functional impact framework — not a diagnostic framework — to make funding decisions. Functional Capacity Assessments are structured around eight functional domains drawn from the International Classification of Functioning, Disability and Health (ICF) and adapted by the NDIA for the Australian disability context. Every NDIS-aligned FCA, SIL assessment, ILO assessment and AT report should map clearly back to these eight domains.
1. Self-care
Self-care captures the personal activities of daily living — showering, dressing, toileting, grooming, oral hygiene, eating and drinking, and managing menstruation and continence. The assessor documents whether the participant requires verbal prompting, physical guidance, hands-on assistance, or full physical care. Self-care is one of the most heavily-weighted domains in SIL applications because it directly drives Roster of Care intensity.
2. Mobility
Mobility includes transfers (bed, chair, toilet, vehicle), indoor mobility, outdoor mobility, stair and ramp negotiation, and community mobility. The assessor documents the assistance level, equipment used, fatigue and pain profile, and falls risk. Mobility evidence is critical for AT applications, home modification applications and SDA design category determinations.
3. Communication
Communication covers expressive and receptive language, social communication, reading, writing and numeracy. For participants with autism, intellectual disability, ABI or hearing/vision impairment, this domain often drives major support needs around interpretation, mediation and assistive communication technology.
4. Social Interaction
Social interaction documents the participant’s ability to initiate, sustain and exit social interactions, regulate behaviour in social settings, and respond appropriately to social cues. Difficulties in this domain frequently drive 1:1 community access support funding and behaviour support overlays.
5. Learning
Learning captures the participant’s capacity to acquire new skills — not their formal education. Assessors document the supports required for the participant to learn a new task: prompting, repetition, errorless learning, task analysis, or sensory accommodation. This is a critical domain for capacity building funding applications.
6. Self-management
Self-management captures executive functioning — planning, organising, time management, finances, medication management, appointments and emergency response. Limitations in this domain are extremely common across psychosocial disability, ABI, autism and intellectual disability, and drive both Core and Capacity Building funding.
7. Community Participation
Community participation looks at the participant’s ability to access shops, public transport, recreation, employment, education, places of worship and broader community settings. Documentation must capture both the physical and the cognitive/social barriers to participation.
8. Domestic Life
Domestic life captures cooking, cleaning, laundry, household maintenance, shopping and budgeting. Together with self-care and mobility, domestic life forms the backbone of in-home support justification under SIL and ILO.
How the Eight Domains Drive Funding Decisions
NDIS planners read the FCA looking for two things: first, the level of impairment in each domain (no support, prompting, supervision, partial assistance, full assistance); and second, the relationship between impairment and the requested support. A high-quality FCA explicitly bridges domain → impairment → activity limitation → participation restriction → support need → recommended supports. Reports that stop at impairment without making the chain to recommended supports almost always result in reduced funding.
Common Mistakes in Functional Domain Evidence
- —Describing impairment but not quantifying support hours
- —Failing to distinguish prompting from physical assistance
- —Generic statements like ‘requires support’ instead of measurable descriptors
- —Not capturing fluctuation across good days and unwell days
- —Ignoring informal supports that mask true support need
- —Confusing capacity-building goals with maintenance supports
How FCA Reports Australia Structures Domain Evidence
Every report we produce includes a domain-by-domain matrix that scores the participant on impairment, activity limitation and participation restriction using the ICF qualifier scale, alongside a narrative example for each. This dual structure — quantitative and qualitative — gives the planner exactly what they need to make a confident funding decision.
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