Guide — ADHD in Australia — Updated June 2026
How to get an ADHD diagnosis
in Australia
Helplines.com.au — GP-reviewed — Sources: RACGP, TGA, Services Australia
ADHD is increasingly diagnosed in Australian adults — many of whom went undiagnosed through childhood. The diagnosis process is different for adults versus children, and navigating the healthcare system can be confusing. This guide explains who can diagnose ADHD, what the process involves, how much it costs, and what happens after diagnosis.
Who can diagnose ADHD in Australia?
In Australia, ADHD can only be diagnosed by a specialist medical practitioner — not a GP alone. The specialists who can diagnose ADHD are:
- Psychiatrists — the most common diagnostic pathway for adults
- Paediatricians — the most common diagnostic pathway for children
- Neurologists — less common, but can assess for ADHD
- Clinical psychologists — can assess and recommend diagnosis, but in most Australian states cannot prescribe medication independently; a medical specialist must make the formal diagnosis for prescribing purposes
Your GP cannot diagnose ADHD, but they play an important role: they provide the referral, rule out other conditions, and in some states can prescribe certain ADHD medications after a specialist has diagnosed you.
Key point: The specialist makes the diagnosis. Your GP provides the referral and ongoing care. You need both working together.
Step-by-step: getting an ADHD diagnosis as an adult
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Start with your GP. Book a long appointment (30 min). Tell your GP you're concerned about ADHD and want to be assessed. Your GP will ask about your symptoms, take a history, rule out other conditions (thyroid issues, anxiety, sleep disorders can mimic ADHD), and write a referral to a psychiatrist or appropriate specialist. Bring notes — list specific examples of how symptoms affect your daily life.
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Use a screening tool before your appointment. The ASRS (Adult ADHD Self-Report Scale) and our ADHD screener are good starting points — not diagnostic, but they help you articulate your symptoms to your GP.
Take our free ADHD screener and print the result.
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Find a psychiatrist who specialises in ADHD. Ask your GP for a recommendation, or use the RANZCP (Royal Australian and New Zealand College of Psychiatrists) find-a-psychiatrist service. Many psychiatrists have long waitlists — expect 3–12 months in major cities, sometimes longer in regional areas.
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The psychiatric assessment. A comprehensive adult ADHD assessment typically takes 60–120 minutes. The psychiatrist will review your history (including childhood symptoms — ADHD must have onset before age 12), conduct structured interviews, review any questionnaire data, and may ask you to provide corroborating information from a family member who knew you in childhood.
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Receive a diagnosis and treatment plan. If ADHD is confirmed, the psychiatrist will discuss treatment options and may initiate medication. They will write to your GP with the diagnosis and recommendations.
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Ongoing care returns to your GP. Once a specialist has diagnosed you and initiated treatment, your GP can continue to prescribe your medication under a shared-care arrangement in most states.
Step-by-step: ADHD diagnosis for children
The process for children is similar but involves a paediatrician rather than a psychiatrist, and requires corroborating information from school and family.
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GP referral to a paediatrician. Your child's GP will write a referral. They may first request reports from the child's school (teacher questionnaires such as the Conners' Teacher Rating Scale are commonly used).
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Collect school reports and observations. Teachers who know your child well can provide important information. Many paediatricians will send questionnaires to the school as part of the assessment process.
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Paediatric assessment. The paediatrician will conduct a comprehensive assessment including medical history, developmental history, direct observations, and standardised rating scales. For complex presentations, they may also refer for neuropsychological testing.
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Diagnosis and treatment plan. If ADHD is diagnosed, the paediatrician will discuss medication options (if appropriate), school support strategies, and behavioural interventions. They will provide the school with a letter for adjustments where needed.
Costs and Medicare rebates
ADHD assessment in Australia involves out-of-pocket costs. Here is an approximate guide for 2025/2026 — actual costs vary significantly by practitioner and location.
GP appointment (initial)
Bulk billed or $30–$80 gap. Longer ADHD consultations may cost more.
Psychiatrist assessment
Total $600–$1,500+. Medicare rebates apply: typically $250–$450 rebated. Out-of-pocket: $300–$1,000+.
Paediatrician (children)
Total $400–$800 for initial assessment. Medicare rebates apply. Out-of-pocket varies widely.
Psychologist assessment
$300–$600 for a comprehensive assessment. Medicare rebates apply if referred under a Mental Health Treatment Plan (up to 10 sessions).
Cost note: These are approximate 2025/2026 figures and vary by provider, city, and whether the practitioner bulk bills. Always ask about fees upfront. Some community mental health services and teaching hospitals offer lower-cost assessment, though waitlists may be longer.
Waiting times in 2025/2026
Waitlists for ADHD assessment in Australia have grown significantly in recent years due to increased awareness and demand. Realistic expectations for 2025/2026:
- Major cities (Sydney, Melbourne): 6–18 months for a public psychiatrist; 3–8 months for private
- Brisbane, Perth, Adelaide: 4–10 months private
- Regional Australia: Can be 12–24 months or longer, or may require telehealth assessment
Strategies while waiting: Ask your GP to manage symptoms in the interim if appropriate. Cognitive Behavioural Therapy and ADHD coaching can be accessed through a Mental Health Treatment Plan while waiting for specialist assessment. Online ADHD support communities can also be helpful.
Telehealth: Since COVID-19, many ADHD specialists offer telehealth appointments, which significantly increases access for people in rural and regional areas. Ask specifically about telehealth when joining waitlists.
What happens after diagnosis
Once you have a formal ADHD diagnosis:
- Your specialist will write to your GP with the diagnosis and treatment recommendations
- Your GP can apply for a Mental Health Treatment Plan if psychological support is needed (up to 10 subsidised sessions per year)
- For children, schools can implement a Learning Support Plan and reasonable adjustments
- Adults can access workplace reasonable adjustments under the Disability Discrimination Act 1992
- ADHD Australia (adhdaustralia.org.au) provides peer support, education, and community resources
ADHD medication in Australia
ADHD medications in Australia are scheduled differently from other countries. Stimulant medications (methylphenidate, dexamphetamine, lisdexamfetamine) are Schedule 8 controlled substances in Australia, meaning:
- They can only be initiated by a specialist (psychiatrist, paediatrician, or neurologist) — not a GP alone
- Once initiated by a specialist, GPs can continue prescribing under a shared-care arrangement in most states
- Prescriptions have specific requirements (quantity limits, some states require special permits)
- Non-stimulant options (atomoxetine, guanfacine) are also available and can sometimes be prescribed by GPs alone after specialist diagnosis
Your specialist will explain the medication options and work out the right starting dose. Most people require dose titration over several weeks before finding the optimal dose.
Free ADHD screener — not diagnostic, but a useful starting point
The ASRS v1.1 (WHO Adult ADHD Self-Report Scale) takes 2 minutes. Print the result to share with your GP.
Sources & References
- Royal Australian College of General Practitioners. (2023). RACGP guidelines for preventive activities in general practice, 10th edition. racgp.org.au
- Royal Australian and New Zealand College of Psychiatrists. (2022). RANZCP clinical guidelines for ADHD in adults.
- Kessler RC et al. (2005). The World Health Organization Adult ADHD Self-Report Scale (ASRS): a short screening scale for use in the general population. Psychological Medicine, 35(2), 245–256.
- Services Australia. (2025). Medicare Benefits Schedule — psychiatry and paediatrics items. servicesaustralia.gov.au
- Therapeutic Goods Administration. (2025). Scheduling of ADHD medications in Australia. tga.gov.au
- ADHD Australia. (2025). adhdaustralia.org.au
- Australian Government Department of Health. (2023). Better Access to Mental Health Care initiative. health.gov.au
Medical Disclaimer: This guide provides general educational information about the ADHD diagnosis process in Australia. It does not constitute medical advice. Costs, waiting times, and clinical processes vary by provider and change over time — always verify current information with your GP or specialist. Digital Treasure Pty Ltd, 2026.