What evidence may be needed for an NDIS application
Good evidence makes the NDIA's decision easier. Here's what it usually needs to show, who provides it and how to get ready.
Last checked against ndis.gov.au: 2 October 2026. NDIA guidance on gathering evidence (opens in a new tab)
What the evidence needs to show
The NDIA asks for evidence from a treating health professional relevant to your main (primary) disability. It should be recent, specific to you, and:
- confirm your primary disability
- describe how it affects different areas of your life
- describe treatments you've had and how they went
- describe future treatment options and what's expected
The NDIA looks at how your impairment affects everyday activities such as communication, social interaction, learning, mobility, self-care and self-management.
Who can provide it
Usually the professional who knows you best: a GP, paediatrician, specialist, psychiatrist, psychologist, occupational therapist, speech pathologist or physiotherapist. The NDIA says it helps if they have treated you for at least six months, and they should be registered in their field.
You, your family and your carers can also describe the day-to-day impact. That information can sit alongside the professional evidence.
The forms and formats
- the NDIA's supporting evidence form
- the evidence of psychosocial disability form, for psychosocial disability
- section 2 of the access request form, completed by your treating professional
- existing reports, assessments or letters
- a letter or email from your treating professional
Identity documents
The NDIA usually needs to see three identity documents: one birth or arrival document (such as a full birth certificate, passport or citizenship certificate) and two documents you use in the community (such as a Medicare card, bank card or utility account). Your NDIS partner can help if you don't have these.
Children under 9
An early childhood partner can help families gather evidence of a child's disability or developmental delay at no cost. Evidence comes from the child's treating health professional and should include any treatment the child is receiving.
Getting ready for your appointment
Before you see your professional, it helps to write down:
- what a typical day looks like, and where you need help
- what's happened with past treatments
- any reports or assessments you already have
- what you'd like support to help you do
Please don't upload medical documents here
Our website forms don't ask for diagnoses or reports. If you work with us, we'll arrange a secure way to share documents.