Functional Assessment Occupational Therapy: A Guide to the NDIS Functional Capacity Assessment

A functional assessment by an occupational therapist is often the single most consequential document in a participant's NDIS plan review. It shapes how the NDIA understands the participant's daily function, what supports are funded, and how much of the plan budget reflects the reality of the participant's life. Get the assessment right and the plan tends to hold together. Get it wrong or leave it thin and the plan often does not.

This blog explains what a functional assessment occupational therapy involves, what an NDIS Functional Capacity Assessment (FCA) covers, who it suits, and why the quality of the assessment matters.

What Is a Functional Capacity Assessment?

A Functional Capacity Assessment is a structured clinical assessment completed by an occupational therapist to evaluate a participant's ability to complete daily activities across multiple life domains. It is one of the most common assessments used in NDIS planning and plan review submissions.

An FCA typically covers:

  • Medical, personal and vocational background of the participant
  • Self-care activities including showering, dressing, grooming and toileting.
  • Domestic activities such as meal preparation, cleaning, laundry and shopping.
  • Community access including transport, social participation and navigating public spaces.
  • Communication, cognition and social interaction.
  • Mobility, transfers and physical function.
  • Health management, medication routines and safety awareness.
  • Sensory profile, emotional regulation and behavioural factors where relevant.
  • Recommendations for core and therapeutic support.

Why the NDIA Uses Functional Assessments?

The NDIS is a functional scheme. Funding is based not on a participant's diagnosis alone, but on the impact of that diagnosis on their daily life. A person with the same diagnosis as another participant may need significantly more or less support depending on their functional capacity.

A functional assessment gives the NDIA evidence to answer the practical question: what can this participant do, what can they not do, and what support do they need to live their life? Without this clinical evidence, plan funding decisions default to assumptions, and those assumptions often do not match the participant's actual needs.

When is a Functional Assessment Needed?

A functional assessment by an OT is typically needed:

  • At the start of an NDIS plan to establish baseline function and identify support needs.
  • At plan review to update the picture of the participant's function and support what needs adjusting.
  • When a participant's function has changed significantly, whether improved or declined.
  • When a new life stage brings different needs, such as transitioning to adulthood or moving into independent living.
  • When funding for a specific type of support (SIL, high-intensity supports, capacity building) needs to be justified.

What Makes a Functional Assessment Good?

Not every functional assessment produces evidence the NDIA can act on. From the perspective of Allied Health2U, a service that has completed many functional capacity assessments, a strong FCA typically involves:

  • Direct observation of the participant across relevant environments, not just interview or self-report.
  • Input from family, support workers and other clinicians who see the participant regularly.
  • Standardised assessment tools where appropriate, alongside qualitative observations.
  • Clear description of what the participant can do, what they struggle with, and what supports would make a meaningful difference.
  • Specific recommendations that connect the participant's function to the supports that will address it.
  • Written in plain language the NDIA can understand and act on, without hedging or unnecessary jargon.

How does AH2U Deliver Functional Assessments?

Allied Health 2U has been completing NDIS Functional Capacity Assessments since 2015. Our occupational therapy team delivers FCA’s across Sydney and Greater Sydney, Melbourne and the Gold Coast for face-to-face delivery, with telehealth available for parts of the assessment where it suits.

Where a participant needs multiple assessments across disciplines (OT, PBS, psychology, physiotherapy), we coordinate across the AH2U team so the assessments align rather than contradict each other. This is particularly valuable for participants with complex presentations where a single-discipline assessment cannot capture the full picture.

Looking to arrange a functional assessment for an NDIS participant? Get in touch with Allied Health 2U on 1300 24 2428.