How much does an autism assessment cost in Australia? (2026)

The cost of an autism assessment in Australia comes down to two questions: how old you are, and who does the assessment. If you are under 25, Medicare has a set of items built for diagnosing complex neurodevelopmental conditions such as autism, and they cover a paediatrician or psychiatrist plus allied health assessments. From 25, the autism-specific items stop, and the Medicare rebate you can get is for the GP and psychiatrist parts only.

Private clinicians set their own fees, so the rebate is fixed but your out-of-pocket gap is not. Public child development services in several states assess eligible children without charge, with waiting lists.

Australia's National Guideline for the assessment and diagnosis of autism asks services to explain their indicative costs when they receive a referral, so you can ask for a quote before you book.

The Department of Health, Disability and Ageing says anyone under 25 who is suspected of having a complex neurodevelopmental condition, such as autism, can seek a diagnosis through Medicare. The pathway runs in a fixed order: your GP refers you to a paediatrician or psychiatrist, and that specialist can refer you on to allied health professionals for assessment.

Fees are from MBS Online and apply from 1 July 2026.

A few rules shape what you can claim:

• Items 135 and 289 can be claimed once in your lifetime. They are used when the paediatrician or psychiatrist confirms a diagnosis and writes a treatment and management plan.
• You can have up to eight allied health assessment services in your lifetime, and up to four from one referral.
• The allied health assessments are there to help the paediatrician or psychiatrist make the diagnosis. If a psychologist makes the diagnosis, or the paediatrician or psychiatrist does not confirm it, those services are not claimable through Medicare.
• After a diagnosis, up to 20 allied health treatment services are available in your lifetime under the plan.

As a worked example using the 2026 figures, a child who has the paediatrician diagnosis consultation (item 135) and four psychologist assessment services (item 82000) would receive $678.70 in Medicare benefits for those five services. The paediatrician's earlier consultations attract their own rebates on top of that, and the gap you pay depends on each clinician's fee.

If you are 25 or older, the government's referral pathway says your GP can use standard time-based appointments to assess you and refer you to a psychiatrist for a comprehensive assessment and diagnosis. Psychiatrists can then use their usual initial or time-based Medicare items, or item 291, a referred assessment of more than 45 minutes with a written management plan for your GP, which has a schedule fee of $549.90 and a Medicare benefit of $467.45 from 1 July 2026.

What you can't claim from 25 are the autism-specific psychology, speech pathology and occupational therapy assessment items, which end at 25. If a psychologist or allied health team assesses you privately, you pay their fee. South Australia's Office for Autism notes that private health insurance may cover some of the cost, depending on your policy, so it is worth checking your extras cover.

If you are an adult wondering about ADHD as well, our guide to getting an AuDHD diagnosis in Australia walks through both assessments.

There is no official national price for a private autism assessment, and clinics publish their fees in different ways. The figures below are examples from named sources, so treat them as a guide to the range rather than what you will be quoted.

Aspect's fee guide says Medicare rebates apply to its autism assessments for people under 25 when a paediatrician or psychiatrist has referred you, and that the NDIS does not cover diagnostic assessments.

When you compare clinics, check whether the fee includes the written report and the feedback appointment, and whether a doctor's medical evaluation is part of the price or a separate appointment.

Public services assess children at no cost in several states. Each has its own eligibility rules and waiting list, and most need a referral from a doctor or another professional.

• South Australia: the Women's and Children's Hospital Child Development Unit, the Flinders Medical Centre Child Assessment Team and the Lyell McEwin Gordon McKay Child Development Unit assess eligible children with complex developmental concerns in three or more areas. There is no cost for autism assessment if your child has a Medicare card.
• Western Australia: the Child Development Service offers free assessment to children under 16 with an eligible Medicare card who live in the Perth metropolitan area. Parents can refer directly. Children in regional WA go through WA Country Health Service community health centres.
• ACT: the Child Development Service assesses children under 12 for autism for free when a paediatrician or paediatric psychiatrist refers them before their 12th birthday.
• NSW: child development services are run by local health districts. As one example, Hunter New England's Child Development Team assesses children aged 18 months to 12 years with complex developmental needs, including autism, at no cost, on referral from a health or education professional.
• Victoria: the Victorian Autism Plan says child and adolescent mental health services in every area of Victoria provide autism assessment and diagnosis for children, and each has an autism coordinator. The plan also notes waiting lists for government-funded diagnostic services.
• Queensland: your GP can refer your child to public paediatric services. Queensland Health's referral criteria aim to see children under 6 with screening results suggesting autism within 90 days, and most other referrals within 365 days.

We have not yet covered Tasmania and the Northern Territory here. Your GP or child health nurse can tell you which public service covers your area.

The NDIS does not pay for an autism assessment. Its guideline on disability-related health supports lists diagnostic assessments and screening among the supports NDIS laws do not let it fund. The NDIS does help young children before a diagnosis through the early childhood approach, and Thriving Kids began rolling out in October 2026 for children 8 and under with developmental delay or autism and low to moderate support needs, in every state and territory except Queensland, which had not signed on at launch. Our guide on the NDIS and autism assessment explains both, along with what a report needs for an NDIS application.

A few questions up front can save you a surprise bill:

• What is the total fee, and does it include the written report and feedback session?
• Who will do the assessment, and is it one clinician or a team?
• If I am under 25, does a paediatrician or psychiatrist confirm the diagnosis, so the allied health parts can be claimed through Medicare?
• Can you assess for ADHD at the same time, and what does that add to the cost?
• How long is the waiting list?

If you think both ADHD and autism may apply, our guide to combined ADHD and autism assessment covers how clinics run them together. For ADHD costs on their own, see our ADHD assessment cost guide.