Last updated: May 2026

Some questions take years to become a question. A friend gets diagnosed and something shifts. You dig out an old school report and read words that could have been written last week. You sit through your child’s assessment appointment and think: that’s me. You have Googled it more than once. At some point the reasonable response is to actually find out.

This post is the practical guide to doing that.

What adult ADHD actually looks like

ADHD in adults is frequently misread — including by the adults who have it. The hyperactivity that defines the childhood picture in most people’s minds tends to become internalised over time. You are not bouncing off walls. You are running a permanent internal monologue, losing things you just put down, arriving late despite leaving early, and carrying a low-grade sense of being perpetually behind in ways other people do not seem to be (AADPA, 2022).

The symptoms that surface most often in adults include chronic disorganisation and missed deadlines, difficulty sustaining attention through meetings or tasks requiring effort, impulsivity in conversations or decisions, and emotional dysregulation particularly around frustration or perceived criticism. There is also what clinicians sometimes call time blindness: a genuine neurological difficulty estimating how long things take, not a character flaw (Kooij et al., 2019).

For women especially, the picture is further complicated by masking. Decades of compensating through effort, anxiety, and social attunement can keep ADHD invisible to everyone, including the person living with it. Many women who reach assessment in their 30s or 40s describe having been told throughout their lives that they were bright but scattered, too emotional, or simply not living up to their potential. The clinical picture was there. The framework to recognise it was not (AADPA, 2022). For women navigating this alongside significant hormonal changes, the picture can shift further still — perimenopause in particular can markedly worsen ADHD symptoms in ways that are still poorly recognised.

ADHD also rarely arrives alone. Anxiety, depression, sleep difficulties, and emotional dysregulation are common co-occurrences. They can both mask the underlying condition and complicate the path to diagnosis, which is part of why thorough assessment matters (Faraone et al., 2021).

An estimated 2 to 6 percent of Australian adults live with ADHD — approximately 533,300 people aged 20 and over — and the majority remain undiagnosed or untreated (AADPA, 2022).

What qualifies as ADHD in an adult

To meet diagnostic criteria under DSM-5, symptoms must have been present since before age 12. This does not mean you needed a difficult childhood, a chaotic home, or a history of failing at school. It means some version of these difficulties was present then, even if it was never recognised or named (American Psychiatric Association, 2013).

A retrospective account of childhood symptoms is clinically acceptable. Your own recall, a parent’s recollection, or old school reports all count. The absence of a childhood diagnosis is not a barrier.

Three presentations are recognised: predominantly inattentive, predominantly hyperactive-impulsive, and combined. In adults, the inattentive presentation is the most common, and it is particularly under-recognised in women (AADPA, 2022). If your experience has always looked more like chronic overwhelm and invisible effort than obvious restlessness, this matters.

Starting the process: your GP

In Australia, your GP is the entry point. Historically, GPs could not diagnose ADHD or initiate stimulant medication — that required a specialist referral. That is changing. Victoria has announced reforms for 2026 allowing trained GPs to diagnose and prescribe for ADHD within defined clinical frameworks. Queensland, Western Australia, and New South Wales have already introduced similar pathways. The direction across all states is consistent: structured expansion of GP scope, with specialist oversight retained for presentations that are complex, diagnostically uncertain, or involve significant comorbidity (Pandion Health, 2026).

For most adults entering the pathway today, however, a GP appointment remains the starting point for referral rather than diagnosis. A thorough GP appointment will cover your current symptoms and how they affect daily functioning, a brief review of childhood history, screening using a tool such as the Adult ADHD Self-Report Scale (ASRS), and a check for other medical causes that can present similarly: thyroid dysfunction, sleep apnoea, iron deficiency, and anxiety or depression among them (RACGP, 2024; AADPA, 2024).

At the end of that appointment, your GP writes a referral to a specialist for formal assessment. That referral is what activates Medicare rebates on your specialist appointments.

A few practical notes before you go. Write down specific examples of how your symptoms affect your work, relationships, and daily life — concrete descriptions are more useful to a clinician than general ones. Think back to school reports, early workplace feedback, or patterns other people have named over the years. And ask your GP to make the referral specific to adult ADHD assessment.

Who conducts the assessment

Typically two types of practitioners assess ADHD in adults in Australia, and the differences matter for planning your care.

Psychiatrists are medical specialists in mental health and the most common route to both diagnosis and medication initiation for adults. In most Australian states, stimulant medications have traditionally required initiation by a specialist. That is now shifting: Queensland, WA, NSW, and Victoria (from 2026) have introduced or are introducing pathways allowing trained GPs to diagnose and prescribe within defined frameworks. Despite these reforms, the majority of adult ADHD assessments in Australia continue to be conducted by specialist psychiatrists, and for most adults entering the pathway today, a specialist referral remains the most direct route to both diagnosis and treatment (RANZCP, 2021). Once a diagnosis is established and treatment is stable, ongoing prescribing can often be managed by a GP under a shared care arrangement.

Clinical psychologists can contribute a thorough cognitive and behavioural assessment, but they cannot prescribe medication. For most adults seeking both diagnosis and treatment, a direct pathway through a psychiatrist is more efficient. A clinical psychologist remains a valuable part of ongoing treatment, and Medicare covers a portion of psychology sessions once you hold a Mental Health Treatment Plan from your GP (RACGP, 2024).

Telehealth ADHD assessments attract the same Medicare rebates as in-person consultations and deliver equivalent clinical quality in experienced hands.

What the assessment actually involves

An ADHD assessment is a clinical diagnosis. It requires structured interviewing, time, and a practitioner who looks beyond the presenting complaint. It cannot be completed in a questionnaire or a fifteen-minute consultation.

A well-structured assessment has several components.

Before your first appointment, you will complete a comprehensive digital pack of standardised rating scales mapping your experience against diagnostic criteria. An observer form for someone who knows you well — a partner, parent, or close friend — is usually included. This preparation means the clinical interview can focus on depth rather than data collection. You may also be asked to complete some basic screening with your GP before your first appointment, covering blood pressure and heart rate. This is standard clinical practice, not an administrative hurdle.

The first appointment runs 50 to 60 minutes. This is the core of the process: a detailed clinical interview covering your current symptoms and how they manifest across work, relationships, and daily life; a developmental and childhood history; your educational and occupational background; and a thorough review of mental health, medical history, and any co-occurring conditions. Tools such as the Conners’ Adult ADHD Rating Scales or the DIVA 2.0 structured interview are commonly used (Kooij et al., 2019). The clinician is not checking boxes against a symptom list. They are building a clinical picture that accounts for what else might be present.

The second appointment, typically 30 minutes, is where findings are discussed, a diagnosis is confirmed or otherwise, and treatment planning begins. If medication is clinically appropriate, an eScript can be sent directly to your phone.

Following the process, you receive a comprehensive written report covering the diagnostic basis, clinical findings, and recommended next steps. This document is useful for your GP, for workplace or school accommodation requests, and for your own records.

To formally receive a diagnosis, your clinician needs to confirm five or more symptoms of inattention and/or hyperactivity-impulsivity, present for at least six months, across at least two settings, with onset before age 12, causing measurable functional impairment, and not better explained by another condition (American Psychiatric Association, 2013). If the assessment does not lead to an ADHD diagnosis, that finding also has value — it may point toward another condition that better explains your experience, or guide further investigation.

Telehealth assessment: is it as rigorous?

Yes, when conducted properly. Telehealth ADHD assessments attract the same Medicare rebates as in-person consultations, and in experienced hands, the clinical quality is equivalent (AADPA, 2022). Rating scales and collateral questionnaires are completed digitally in advance. The clinical interview proceeds exactly as it would in a consulting room.

What matters is not the medium. It is whether the assessment is conducted by a qualified specialist who takes the time to do it thoroughly. A structured 50 to 60 minute clinical interview with a psychiatrist or paediatrician is an assessment. A brief video call working through a checklist is not.

What happens after a diagnosis

If ADHD is confirmed, you receive a written report and a treatment plan. That plan is a conversation, not a prescription.

Medication, where clinically appropriate, is frequently recommended as a first-line approach for adults with significant functional impairment. Australian medications subsidised under the PBS include stimulant options: lisdexamfetamine (Vyvanse, PBS-listed for adults since February 2021), dexamfetamine, and methylphenidate. Non-stimulant alternatives including atomoxetine and guanfacine are available for those who cannot tolerate stimulants (RACGP, 2024; RANZCP, 2021). Medication is one tool in managing ADHD — not the whole answer — and you will not necessarily start it immediately. The decision is made collaboratively with your clinician based on your symptoms, health history, and preferences.

Psychological therapies, particularly Cognitive Behavioural Therapy adapted for ADHD, address the areas medication does not: organisation, time management, emotional regulation, and practical coping strategies. A Mental Health Treatment Plan from your GP gives you access to up to 10 subsidised psychology sessions per calendar year under Medicare (RACGP, 2024).

Coaching and skills training offer practical, day-to-day support around planning, routines, and productivity. Some people find this the most immediately useful intervention, particularly in the early post-diagnosis period.

Workplace and academic accommodations become formally accessible once a diagnosis is documented. A comprehensive clinical report is what opens those conversations.

Costs, Medicare, and timeframes

Private ADHD assessments involve out-of-pocket costs, but Medicare rebates apply when you hold a valid GP referral.

At Pandion Health, the all-inclusive psychiatrist assessment is $1,590, with an out-of-pocket cost of approximately $1,091.95 after the Medicare rebate. This covers both telehealth appointments, the pre-assessment digital rating scale pack, a comprehensive ADHD report, eScript if indicated, and an optional 30-minute ADHD coaching discovery call. For those who already hold a diagnosis from a psychiatrist or paediatrician and want to transfer their care, a separate pathway is available at $750, with a Medicare rebate of approximately $262.

On waiting times: access to adult ADHD assessment remains a significant barrier in Australia. A 2023 Senate inquiry found wait lists of 12 to 18 months or more are common at many specialist clinics (Australian Government, 2024). Through telehealth services with structured intake processes, that wait is considerably shorter — appointments at Pandion are typically available within one to two weeks.

If cost is a concern, discuss this with your GP. They may be aware of more accessible options locally, and a Mental Health Treatment Plan can reduce the cost of psychological support during and after the assessment process.