Common Mistakes to Avoid in Your NDIS Support Needs Assessment

What participants and carers often get wrong — and how to avoid it

Disclaimer: This article is for informational purposes only and reflects publicly available information about the NDIS I-CAN assessment framework. This guide does not constitute professional disability support advice. Individual circumstances vary — if you have specific concerns about your assessment, speak with a Support Coordinator, allied health professional, or disability advocate.

The I-CAN v6 assessment is designed to be a fair, evidence-based measure of your support needs. But the outcome — and the NDIS plan that follows — depends significantly on how your genuine needs are communicated during the assessment. Many participants leave having undersold their challenges without ever realising it.

These mistakes are not a reflection of dishonesty or poor preparation. They are entirely understandable responses to an unfamiliar process. But understanding what goes wrong — and why — gives you the chance to avoid them.

---

Why Assessment Mistakes Are So Common — and So Costly

The I-CAN v6 assessment is unlike most interactions participants have with healthcare or government services. It asks you to describe your limitations and difficulties to a professional you have just met, in a structured clinical context, often in a setting that feels more capable than your typical day at home.

That situation naturally pushes against accurate self-reporting. The very act of attending an appointment — getting dressed, travelling, navigating a new environment or managing a telehealth call — can create a misleading impression of capability. The stakes are also high: participants may be anxious, trying to present well, or simply unfamiliar with what the assessor needs to hear.

The consequences of common assessment mistakes can be significant. An undersupported plan means inadequate care, financial pressure on carers, and a gap between the life a participant could live and the one they are left managing with insufficient support.

Understanding these mistakes does not mean coaching yourself to exaggerate your needs. It means ensuring that your genuine, daily reality is accurately communicated.

---

Mistake 1: Describing Your Best Day

This is the most common and most consequential mistake participants make in a support needs assessment.

When asked how you manage a particular task — showering, cooking, getting out of bed — the natural instinct is to describe how you manage it when things are going relatively well. You recently had a better week. The assessor seems friendly and capable. You want to come across as someone who is coping.

But the assessment is not measuring your best day. It is measuring your typical functioning — including your difficult days, your variable days, and your worst realistic days.

The critical distinction: An assessor needs to understand the full range of your experience, not just the upper end.

How to avoid this mistake:

• Before the assessment, spend 2–4 weeks keeping a daily journal noting the challenges you encountered each day (see our guide: How to prepare for your I-CAN v6 assessment)
• When answering the assessor's questions, think about the week as a whole — not this particular morning
• Use specific examples: "On three days last week I couldn't get out of bed without help" is far more informative than "I usually manage"
• If you are having an unusually good day on the assessment day, say so explicitly and reference your diary or documentation as evidence of your more typical experience

---

Mistake 2: Understating Needs to Appear Capable

Closely related to the good-day effect, but distinct: many participants consciously minimise their needs because of pride, a desire to appear independent, or concern about being perceived negatively.

This is particularly common among participants who have spent years — often decades — managing significant disability while projecting capability to the world. It can also stem from cultural values around self-reliance, or a genuine belief that acknowledging difficulty is a sign of weakness.

The assessor's role is not to judge your capability. It is to accurately measure your support needs so that appropriate funding can be allocated. Describing your genuine challenges does not mean you are incapable — it means you are being honest about the real cost of managing your disability each day.

What to remind yourself:

• Saying you need help is not a failure. It is why the NDIS exists.
• The assessor is a professional. They have heard it all before and are not there to judge.
• Understating your needs leads directly to an underfunded plan. The only person affected by this is you — and the people who care for you.

For guidance on how to describe your support needs clearly and honestly, read: How to describe support needs for the NDIS.

---

Mistake 3: Forgetting the Impact of Fatigue and Recovery Time

Many participants accurately describe whether they can complete an activity, but fail to describe what it costs them to do so.

Being able to shower independently is not the same as being able to shower independently without consequences. For participants with fatigue-related conditions — including neurological disabilities, chronic pain, acquired brain injury, and many mental health conditions — completing a task can trigger hours of recovery time that prevents other activities from happening.

This post-exertional impact is a legitimate and significant functional impairment, but it is frequently overlooked in assessments because participants focus on task completion rather than task cost.

How to describe this effectively:

• "I can shower independently, but it takes all my energy for the morning. After showering, I need to rest for at least 90 minutes before I can do anything else."
• "I managed to attend the appointment, but I spent the rest of the day in bed recovering."
• "I can cook a simple meal on some days, but if I do, I cannot manage anything else in the afternoon — including personal care."

The I-CAN v6 assessment considers how your disability affects your functioning across the full day and across the full week. Describing the downstream effects of activities — not just whether you can do them — gives the assessor the complete picture.

---

Mistake 4: Not Mentioning Mental Health Impacts on Daily Function

Mental health conditions — including anxiety, depression, PTSD, and emotional dysregulation — are genuine functional impairments that affect daily life in ways that are just as real as physical limitations. Yet many participants fail to mention them, or mention them only in passing, because they feel less "legitimate" than physical needs.

Examples of mental health impacts on daily functioning:

• Anxiety that prevents leaving the house without a support person, even for familiar activities
• Depression that causes significant difficulty with motivation, hygiene, and maintaining routines
• Emotional dysregulation that affects relationships, community participation, and safety
• PTSD responses triggered by certain environments, interactions, or sensory experiences

These are functional needs, not character flaws or life choices. They affect what you can do, when you can do it, and how much support you need to do it safely. They belong in your assessment.

How to include mental health impacts:

• Frame them in terms of their functional effect: not "I have anxiety" but "my anxiety means I cannot travel on public transport alone and need a support worker to attend medical appointments"
• Reference your treating psychologist's or psychiatrist's reports
• Describe specific instances where mental health has directly affected your ability to complete tasks in the 12 I-CAN domains

---

Mistake 5: Failing to Describe Supervision and Safety Needs

Physical assistance is visible and easy to describe. Supervision needs — the requirement for another person to be present or nearby, even if they are not actively doing anything — are much harder to articulate and are frequently omitted.

Supervision needs are real, significant, and fundable under the NDIS. They include:

• Cognitive supervision: needing someone nearby to prompt medication, remember appointments, or redirect from unsafe decisions
• Safety supervision for wandering or elopement (particularly relevant for participants with dementia or autism)
• Supervision during personal care due to fall risk or seizure risk
• Overnight supervision for participants whose safety cannot be assured while sleeping unattended

How to articulate supervision needs:

• "I need someone in the house when I cook because I have had several kitchen incidents when unsupervised."
• "I require overnight support because I have been found outside in a distressed state on three occasions in the past year."
• "I need prompting every 30 minutes to take medications — I cannot manage this independently."

Do not assume that because you are not receiving hands-on physical care, your support needs are minimal. Supervision is a support need and should be described specifically and honestly.

---

Mistake 6: Arriving Without Organised Supporting Evidence

Even the most thorough verbal account of your needs is strengthened by documentary evidence. An assessor who can cross-reference what you describe against a recent occupational therapy report, a carer's written statement, or a specialist's functional assessment has a much richer picture to work from.

Many participants arrive at their assessment with no documentation, or with a disorganised collection of reports that the assessor has no time to read through properly.

What to bring:

• Recent allied health functional assessments (occupational therapy is particularly valuable)
• Specialist medical reports addressing the functional impact of your diagnosis
• A written personal statement covering each of the 12 I-CAN domains
• A statement from your carer or support worker describing the assistance they provide
• Your daily diary or functional log from the weeks leading up to the assessment

How to present it:

Organise documents in a clearly labelled folder — either physical or digital. A one-page summary sheet at the front that lists each document and its relevance saves the assessor time and ensures the most important evidence is not buried.

For a full guide to gathering and organising your supporting evidence, read: How to prepare for your I-CAN v6 assessment.

---

Mistake 7: Not Mentioning How Your Needs Affect Others

The I-CAN assessment is not only about what you can and cannot do — it also considers the sustainability of your informal support arrangements. The care provided by family members and unpaid carers is part of the picture, and the degree to which that informal support is reaching or exceeding its sustainable limits matters.

Many participants focus entirely on their own needs and do not mention the impact on their carer, partner, or family. This is a missed opportunity.

What to mention:

• How many hours per week your carer provides support, and what that support involves
• Whether your carer's own health, work, or family commitments are affected
• Whether informal support has recently reduced or is at risk of reducing
• Whether the carer is providing support they are not trained or equipped to provide safely

For carers who are attending or preparing alongside a participant, this is your cue. Your perspective — the reality of what you provide, what it costs you, and what would happen if you were not available — is legitimate and important evidence in the assessment.

For a detailed guide to the carer and family perspective in I-CAN v6 assessments, read: NDIS I-CAN v6 for carers and families.

---

Mistake 8: Accepting the Assessment Outcome Without Reading It

The assessment does not end when the assessor leaves — and neither do your options.

Many participants receive their NDIS plan, accept it without carefully reviewing it, and only realise much later that the budget is insufficient for their actual support needs. By that point, the 3-month window for requesting an internal review may have closed.

What to do after your assessment:

1. Request a copy of the assessor's report — you are entitled to this. Read it and check whether the functional ratings across the 12 domains accurately reflect what you described and what your documentation showed.

2. Read your plan carefully — review every section, including budget totals, stated supports, and plan duration. Compare it against your assessed needs.

3. Note the date of the planning decision — your 3-month window for an internal review begins from this date. Do not let it pass.

4. If something seems wrong, act quickly — gather additional evidence, speak with your Support Coordinator or a disability advocate, and request an internal review. For a full explanation of the review process, read: What happens after your I-CAN v6 assessment.

You have rights at every stage of this process. Exercising them is not complaining — it is an entirely appropriate response to a plan that does not meet your genuine needs.

---

What Good Preparation Looks Like

Every mistake described above has a corresponding preparation strategy. Good assessment preparation is not about presenting yourself differently to the assessor — it is about ensuring that the real impacts of your disability on your daily life are clearly, specifically, and honestly communicated.

The most prepared participants arrive at their I-CAN v6 assessment having:

• Kept a daily functional diary for at least 2–4 weeks beforehand
• Written a domain-by-domain personal statement describing their genuine challenges
• Gathered recent reports from their treating team
• Asked a carer or support person to contribute a written statement
• Reviewed the 12 I-CAN domains and thought through how their disability affects each one

That level of preparation takes time and effort, but the investment is directly reflected in a plan that funds the supports you genuinely need.

---

Prepare for Your I-CAN v6 Assessment with ICANReady

Most assessment mistakes come down to the same problem: not being prepared to communicate your genuine needs clearly and completely. Structured preparation changes that.

ICANReady is a document preparation tool built specifically for NDIS participants and carers preparing for the I-CAN v6 assessment. It guides you through all 12 I-CAN domains in plain language and generates a structured preparation document you can bring to your assessment — available at launch for AUD $29.

Join the ICANReady waitlist — it's free →

---

Frequently Asked Questions

What is the single biggest mistake people make in their NDIS assessment?

Describing their best or a recent good day rather than their typical or worst realistic day. This consistently leads to an underestimate of genuine support needs, which flows directly into a plan that does not reflect daily reality. The fix is straightforward — keep a functional diary in the weeks before your assessment and draw on specific, recent examples when answering the assessor's questions.

Is it a mistake to bring too much documentation?

No — having more evidence is generally better than having less. However, organise it so the most relevant documents are clearly labelled and easy to find. An assessor cannot review hundreds of pages during a 60–90 minute session. A one-page summary document listing your key reports and their relevance helps the assessor navigate what you have brought.

What if I accidentally undersell my needs in the assessment?

Request an internal review within 3 months of receiving the planning decision. A detailed written account of your actual daily needs — covering each I-CAN domain with specific examples — supported by additional clinical or functional evidence from your treating team, can provide the basis for a successful review.

Can I correct something I said in the assessment if I realise I got it wrong?

Yes — contact the assessor or the NDIA as soon as possible after you identify the issue. You can submit additional information or a written clarification before the assessor's report is finalised. Act quickly, as assessor reports are typically submitted to the NDIA within a few weeks of the assessment date.

Is it a mistake to come to the assessment without a support person?

Not necessarily — some participants prefer to attend alone and that is entirely their right. But for those with communication difficulties, significant anxiety, memory challenges, or complex support needs, having a trusted support person present can be genuinely valuable. They can add context, help you recall specific examples, prompt you if you are underselling, and provide observations from their own experience supporting you.

---

Sources: NDIS Act 2013, NDIA — Support needs assessment, Disability Advocacy Network Australia (DANA), NDIS Review Final Report 2023