If you're a Canadian adult wondering how you get tested for ADHD — and, honestly, whether it's even worth the money — this is what you actually need to know.

The short answer

You have three practical pathways, and they trade off cost and wait time against each other:

Public (via GP or NP, or referral to public psychiatrist) — $0 (covered by your provincial health plan). Wait: weeks to 18+ months depending on province and how referrals flow.
Private virtual clinic (NP-led, DSM-based clinical interview) — approximately $200–$600. Wait: 1–4 weeks.
Private psychologist / psychiatrist (comprehensive) — approximately $1,500–$4,500. Wait: 2–8 weeks.

Which one is right for you depends on: whether you need a formal written report (for accommodations or long-term-disability claims), whether you want prescribing at the same time, and how much diagnostic complexity there might be (heavy comorbidity, prior mental-health history).

What "getting tested" actually means

Being tested for ADHD is not one thing. In current clinical practice, the components include:

A clinical interview using DSM-5-TR criteria (the diagnostic threshold is at least 5 of 9 symptoms in the inattention domain and/or hyperactivity-impulsivity domain, evidence of some symptoms before age 12, impairment in more than one setting)¹
Rating scales, most commonly the Adult ADHD Self-Report Scale (ASRS-v1.1) and often a companion investigator-rated scale
Consideration of differentials — is this really ADHD, or is it (or is it also) anxiety, depression, sleep disorder, trauma, thyroid, substance use?
Impairment documentation
Sometimes neuropsychological testing — a battery of standardized cognitive tasks that produces a formal report. This is not required for a diagnosis but is often needed for academic or workplace accommodations, and can be helpful when the picture is complicated.

If someone offers you "an ADHD test" that is essentially a screener administered on a website, that is not an assessment. It's a screener. There's a place for those (they can help you decide whether to pursue a real assessment), but they don't constitute a diagnosis.

Public pathway

Every province and territory covers a psychiatric assessment when done by a physician-licensed provider under the public system. In practice, this means:

Ontario: GP/NP → optional psychiatry referral. GPs and NPs can diagnose and prescribe. Psychiatry waits vary widely.
British Columbia: Similar pattern; family physicians can and do diagnose adult ADHD, and the BC Medical Journal has published clinical guidance on this².
Quebec: Family medicine group model; primary-care physicians can diagnose.
Alberta / Manitoba / Saskatchewan / Atlantic provinces: Same general primary-care-first pattern, with regional variation in psychiatry access.

The public pathway is genuinely covered — the cost is your time. If your family doctor is comfortable with adult ADHD and current on CADDRA guidance, this can be a fast, high-quality route. If they aren't, the referral wait becomes the bottleneck.

Private virtual clinics

This is the fastest-growing category. Most virtual private clinics use nurse practitioners who conduct a DSM-based clinical interview, administer rating scales, and — if a diagnosis is warranted — can prescribe non-controlled treatments and often coordinate stimulant prescribing with your family doctor. Typical Ontario prices are commonly cited in the $200–$600 band, sometimes with specific named clinics at $499–$599.

Things to ask before you book:

Is this a full DSM-5-TR clinical interview, not just a screener?
Do they consider differentials? (Yes should be a specific answer, not a shrug.)
Do they produce a written summary you can share with your GP?
Do they follow up? (One appointment and a diagnosis is not care.)
Are they registered with a regulatory college in your province?

The reason this category is growing is that for many adults with an uncomplicated presentation, this level of assessment is genuinely sufficient — and the pandemic accelerated Canadians' comfort with virtual care.

Private psychologist / psychiatrist

The comprehensive private-assessment tier — often the psychologist route — is more expensive and more thorough. Typical Ontario prices land in the $1,500–$4,500 range depending on scope. This is the right level when:

You need a formal written report for academic accommodations (e.g., university disability services)
You need documentation for workplace accommodations under the Ontario Human Rights Code or a long-term-disability claim
The clinical picture is complex — significant psychiatric comorbidity, prior misdiagnoses, learning disability considerations, or performance concerns where standardized cognitive testing matters

If none of these applies to you, a comprehensive assessment is often more assessment than you strictly need — though there's nothing wrong with getting one.

What to do next

If the wait for the public pathway feels unbearable, you can go private for the assessment and stay public for ongoing prescribing (many family doctors will pick up prescribing once someone else has done the diagnosis). If cost is the constraint, get in the public queue and start therapy in parallel — therapy for the executive-function and emotional-regulation pieces doesn't require a diagnosis.

For a step-by-step Ontario walkthrough, see How Adult ADHD Is Diagnosed in Ontario. For a broader overview of what ADHD actually is at the level of the brain, see Adult ADHD: A Neuroscience-Informed Guide.

References

¹: American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders, 5th ed., Text Revision.

²: Diagnosing and treating adult attention-deficit/hyperactivity disorder. British Columbia Medical Journal.

How to Get Tested for ADHD in Canada: Pathways, Costs, and Wait Times