What qualifications do I need to write an NDIS psychological assessment report?

You must be a registered psychologist with AHPRA (Australian Health Practitioner Regulation Agency). Both general and endorsed psychologists (clinical, counselling, forensic, etc.) can write NDIS assessment reports. The NDIA does not require clinical endorsement specifically, but your report must be within your area of competence. If you are diagnosing a condition such as ASD, you must have the relevant training and experience to do so ethically and competently under APS guidelines.

Should I use diagnostic or functional language in an NDIS assessment?

Both — but lean heavily toward functional language. The NDIA needs a confirmed diagnosis to establish eligibility, but the bulk of your report should describe how the condition affects the person's daily functioning. The NDIA funds supports based on functional impact, not diagnosis alone. A diagnosis of ASD Level 1, for example, may or may not result in funded supports depending on whether you clearly articulate the functional limitations it creates. Use concrete, observable language about what the person can and cannot do in daily life.

What does 'reasonable and necessary' mean in the NDIS context?

A support is 'reasonable and necessary' under the NDIS Act 2013 if it helps the participant pursue their goals, facilitates social and economic participation, represents value for money, is effective and beneficial, and takes into account informal supports. When recommending supports in your report, you need to justify each recommendation against these criteria. Simply stating 'Client requires psychology sessions' is insufficient — you must explain why the support is needed, what it will achieve, and why it is the most appropriate option.

How long should an NDIS psychological assessment report be?

There is no prescribed length, but a thorough NDIS psychological assessment typically runs 8 to 15 pages. Shorter reports risk lacking sufficient functional detail for NDIA planners to make funding decisions. Longer reports may include unnecessary clinical detail that obscures the functional information the NDIA needs. Focus on being thorough in your functional descriptions and support recommendations rather than padding the report with clinical theory.

Can I use an NDIS assessment report for Medicare purposes as well?

These are separate documents serving different purposes. A Medicare-funded assessment under the Better Access program focuses on diagnosis and treatment planning for the referring GP. An NDIS assessment focuses on establishing disability, describing functional impact, and recommending funded supports. While the diagnostic information may overlap, the framing, audience, and purpose differ substantially. You should not attempt to combine them into a single document.

NDIS Psychological Assessment Report: Writing Guide for Psychologists

International|10 min read|Updated 2026-03-20|Clinically reviewed

What Is an NDIS Psychological Assessment Report?

An NDIS psychological assessment report is a clinical document written by a registered psychologist to support a person's application to the National Disability Insurance Scheme, or to inform the development of their NDIS plan. The report establishes the presence of a permanent or likely permanent psychosocial or developmental disability, describes how that disability affects the person's functional capacity across life domains, and recommends specific supports that meet the NDIS "reasonable and necessary" threshold.

Unlike standard psychological assessment reports — which often prioritise diagnostic formulation and treatment recommendations — an NDIS assessment report must speak the language of the NDIA. This means foregrounding functional impact over clinical symptomatology, framing recommendations in terms of NDIS support categories, and demonstrating that recommended supports align with the participant's stated goals. A diagnostically rigorous but functionally vague report is one of the most common reasons NDIS access requests are rejected or plans are underfunded.

Your audience is an NDIA planner or Local Area Coordinator (LAC), not another clinician. Write accordingly. Every section of your report should answer the planner's core question: what does this person need, and why can they not manage without it?

When You Need It

You will write an NDIS psychological assessment report in the following situations:

Initial access requests — when a person is applying to the NDIS for the first time and requires evidence of a permanent disability that substantially reduces functional capacity
Change of circumstances — when a participant's condition has deteriorated or a new diagnosis has emerged that warrants additional supports
Plan reassessment — when the NDIA has requested updated evidence to inform a plan review, and existing reports are outdated or insufficient
Administrative Appeals Tribunal (AAT) / internal review — when a participant is appealing an access decision or plan, and a comprehensive independent assessment is required
Supported Independent Living (SIL) applications — when a participant is seeking funding for 24-hour or high-intensity support, requiring detailed functional evidence

In most cases, the referral comes from the participant, their support coordinator, or their LAC. Occasionally, the NDIA itself will request a specific assessment.

Key Components / Requirements

Participant Information and Referral Context

Include the participant's full name, date of birth, NDIS number (if applicable), and the referral source. State the purpose of the assessment clearly — for example, "This assessment was requested to support [Name]'s initial NDIS access request" or "to inform plan review."

Assessment Methods

List all assessment tools, clinical interviews, collateral contacts, behavioural observations, and file reviews used. The NDIA expects a multi-method, multi-informant approach. Name standardised instruments with full titles and include administration dates.

Diagnostic Findings

Provide the diagnosis or diagnoses using current diagnostic criteria (DSM-5-TR or ICD-11). State whether the condition is permanent or likely permanent — a key NDIS eligibility requirement under section 24 of the NDIS Act 2013. If you are confirming an existing diagnosis, cite the original diagnostician and date.

Functional Impact Assessment

This is the most critical section. Describe the participant's functional limitations across NDIS-relevant life domains:

Daily living activities — self-care, meal preparation, household tasks, medication management
Social and community participation — interpersonal relationships, community access, social communication
Learning and applying knowledge — education, training, cognitive flexibility
Communication — expressive and receptive language, pragmatic communication
Mobility and self-management — independent travel, emotional regulation, safety awareness

Use concrete, observable descriptions. Instead of "Client experiences significant anxiety," write "Client is unable to use public transport independently due to panic symptoms, requiring a support worker to accompany them on all community outings."

Support Recommendations

Recommend specific NDIS-fundable supports. Frame each recommendation in terms of the relevant NDIS support category (Capacity Building, Core Supports, Capital Supports). Justify each against the "reasonable and necessary" criteria. Include recommended frequency, duration, and provider type.

Prognosis and Permanency Statement

The NDIA requires a clear statement on whether the disability is permanent or likely permanent, and whether functional capacity is likely to improve with or without supports. Be explicit.

NDIS Psychological Assessment — ASD with Comorbid Anxiety

NDIS Psychological Assessment Report

Participant: Jayden Torres (he/him) Date of Birth: 14/03/2001 NDIS Number: 4XXXXXXXX Date of Assessment: 12/02/2026 and 19/02/2026 Assessor: Dr Sarah Mitchell, Clinical Psychologist, AHPRA PSY0001234567 Referral Source: Support Coordinator, Thrive Disability Services

Purpose of Assessment: This assessment was requested by Jayden's support coordinator to provide updated evidence of functional capacity to inform his NDIS plan review. Jayden is currently an NDIS participant with a primary disability of Autism Spectrum Disorder (ASD). His current plan expires on 30/04/2026.

Assessment Methods:

Clinical interview with Jayden (2 x 90-minute sessions)
Collateral interview with Jayden's mother, Ms Rosa Torres
Autism Spectrum Quotient (AQ-50)
Depression Anxiety Stress Scales (DASS-21)
World Health Organization Disability Assessment Schedule (WHODAS 2.0)
Adaptive Behaviour Assessment System, Third Edition (ABAS-3)
Review of previous diagnostic report (Dr K. Nguyen, 2019)
Review of current NDIS plan and progress notes from support coordinator

Diagnostic Summary: Jayden presents with a confirmed diagnosis of Autism Spectrum Disorder (Level 2 — requiring substantial support) as diagnosed by Dr K. Nguyen, Clinical Psychologist, on 14/08/2019, consistent with DSM-5-TR criteria 299.00. He additionally meets diagnostic criteria for Generalised Anxiety Disorder (DSM-5-TR 300.02) and Social Anxiety Disorder (DSM-5-TR 300.23). All conditions are considered permanent or likely permanent. The ASD diagnosis is a lifelong neurodevelopmental condition, and the comorbid anxiety disorders have been treatment-resistant over four years of intervention and are functionally intertwined with his autistic presentation.

Functional Impact:

Daily Living: Jayden requires prompting and support to maintain personal hygiene routines. He can prepare simple cold meals (sandwiches, cereal) independently but cannot plan, shop for, or cook a full meal without support. He does not manage his own finances — his mother pays bills and manages his bank account. His ABAS-3 General Adaptive Composite score of 62 (Very Low range) reflects pervasive difficulties across self-care, home living, and community use domains.

Social and Community Participation: Jayden has no peer friendships and interacts socially only with his mother and his support worker. He is unable to attend community settings such as shops or medical appointments without a known support person due to severe anxiety and sensory overload. His WHODAS 2.0 score of 43/100 indicates severe disability in social participation. He experiences meltdowns (involving shouting, self-hitting, and withdrawal to his bedroom for several hours) approximately three times per week, typically triggered by unexpected changes to routine or sensory environments.

Communication: Jayden communicates verbally but has significant pragmatic language difficulties. He is unable to make or receive phone calls and becomes nonverbal during periods of high distress. He requires a support worker to attend all appointments and communicate with services on his behalf.

Learning and Employment: Jayden completed Year 10 and has not been able to sustain any employment or further education. He attempted a TAFE course in 2023 but withdrew after three weeks due to sensory difficulties in the classroom environment and inability to navigate the social demands of group work. He has expressed interest in working with animals but requires substantial support to access vocational pathways.

DASS-21 Results: Depression: 28 (Extremely Severe), Anxiety: 24 (Extremely Severe), Stress: 30 (Extremely Severe)

Support Recommendations:

Psychology sessions (Capacity Building — Improved Daily Living): 40 sessions per year of individual psychological therapy with a psychologist experienced in autism and anxiety. Jayden requires ongoing CBT adapted for ASD to develop emotion regulation and distress tolerance skills. These sessions are reasonable and necessary because without continued psychological support, Jayden's anxiety will continue to prevent community participation and progress toward independence. Previous attempts to cease therapy have resulted in significant functional deterioration within 8 weeks.
Support Worker — Community Access (Core Supports): 10 hours per week of 1:1 support worker assistance for community access, including shopping, appointments, and social activities. This support is reasonable and necessary because Jayden is unable to leave the home independently due to the combined impact of his ASD-related rigidity and anxiety symptoms. This support facilitates his goal of "getting out more and making friends."
Support Coordination (Capacity Building): Level 2 (Coordination of Supports), 40 hours per year. Jayden and his mother are unable to navigate the complexity of his NDIS plan, coordinate multiple providers, and manage service agreements independently. Ms Torres reports significant carer stress, and Jayden does not have the executive functioning capacity to self-manage his plan.

Permanency Statement: Jayden's Autism Spectrum Disorder is a permanent neurodevelopmental condition that will require lifelong support. His comorbid anxiety disorders are chronic, treatment-resistant, and functionally intertwined with his autistic presentation. While targeted supports can improve his functional capacity and quality of life, they will not eliminate his need for ongoing assistance. Without NDIS-funded supports, his functional capacity is expected to deteriorate further, increasing his reliance on informal supports and placing unsustainable pressure on his ageing mother as sole carer.

Dr Sarah Mitchell Clinical Psychologist | AHPRA PSY0001234567 Medicare Provider No: 1234567A

This is a sample for educational purposes only — not real patient data.

How to Write It

Step 1: Gather comprehensive information. An NDIS assessment is not a single-session task. Plan for at least two to three hours of direct assessment time, plus collateral contacts and file review. Use standardised functional measures (WHODAS 2.0, ABAS-3, Vineland-3) alongside clinical interview and observation.

Step 2: Frame everything functionally. After you complete your clinical assessment, go through each finding and translate it into functional language. For every symptom or clinical feature, ask: "What can this person not do because of this?" and "What support would they need to do it?"

Step 3: Use NDIS terminology. Refer to NDIS support categories (Core Supports, Capacity Building, Capital Supports) by name. Frame recommendations as supporting the participant's goals. Use phrases like "reasonable and necessary," "functional impact," and "informal supports" — these are the terms NDIA planners work with daily.

Step 4: Be specific in recommendations. Do not write "Client would benefit from psychology." Write "40 individual psychology sessions per year (Capacity Building — Improved Daily Living) with a psychologist experienced in autism, to develop emotion regulation strategies and reduce barriers to community participation. Estimated cost: $9,280 per year at NDIS price guide rate."

Step 5: Address permanency directly. Include a clear, unambiguous statement about whether the disability is permanent and whether functional impairment is expected to persist with and without supports.

Step 6: Write for a non-clinical reader. Your audience is a planner, not a psychologist. Avoid unexplained jargon. Define clinical terms when you use them. Use plain language wherever possible without sacrificing clinical accuracy.

Common Mistakes

Writing a diagnostic report instead of a functional report. The NDIA does not fund supports based on diagnosis — it funds based on functional impact. A detailed diagnostic formulation with minimal functional information will not result in adequate plan funding.
Using vague functional language. Statements like "Client has significant difficulties with daily living" tell the planner nothing actionable. Specify what the person cannot do, in what contexts, and what support they need.
Failing to link recommendations to goals. Every recommended support should connect to one of the participant's stated goals. If you recommend psychology sessions, explain which goal they serve and how.
Ignoring informal supports. The NDIA considers what informal supports (family, friends, community) are already available. Acknowledge existing informal supports and explain why they are insufficient or unsustainable.
Not addressing the "reasonable and necessary" criteria. Simply recommending a support is not enough. You must explain why it is reasonable and necessary — why it is effective, value for money, and not the responsibility of another system (such as health or education).
Omitting the permanency statement. Without a clear statement that the condition is permanent or likely permanent, the NDIA may not accept the report as sufficient evidence for access.
Recommending non-NDIS-fundable supports. The NDIS does not fund day-to-day medical treatment, medications, or supports that are the responsibility of other systems (e.g., mainstream health, education). Ensure your recommendations fall within NDIS scope.