A private ADHD assessment in the UK typically costs £500–£1,200, with appointments available within days to weeks rather than the year-plus waits common on local NHS pathways. Budget beyond the assessment: medication titration typically adds £300–£900, plus ongoing prescription and review costs if your GP doesn't take over prescribing.
- ✓Private ADHD assessment typically costs £500–£1,200; titration adds £300–£900 on top.
- ✓Private waits are days to weeks; many NHS ADHD pathways run 52+ weeks, often years.
- ✓Right to Choose can get a free NHS assessment in months — check it before paying.
What a private ADHD assessment costs
Prices vary by provider, clinician seniority and whether it's an adult or child assessment — children's assessments cost more because they involve school reports, parent interviews and longer observation. Typical UK prices:
| Service | Adult (typical) | Child (typical) |
|---|---|---|
| Diagnostic assessment | £500–£1,000 | £700–£1,200 |
| Medication titration (full course) | £300–£900 | £300–£900 |
| Follow-up review appointment | £100–£250 | £100–£300 |
| Private prescription + medication | £70–£150/month | £70–£150/month |
Online-clinic assessments cluster at the lower end; in-person psychiatrist-led assessments at established clinics sit at the top. Be wary of prices dramatically below this range — a proper assessment takes 90 minutes to several hours of clinical time, and that has a floor cost. Always ask for a written breakdown of exactly what the headline fee includes: the diagnostic report, a feedback session and a letter to your GP are standard at good clinics, but not universal.
How fast: days and weeks, not years
Speed is the reason people pay. Most private providers offer an initial appointment within one to three weeks, some within days, with a diagnosis at or shortly after the first assessment. Compare that with NHS pathways: ADHD isn't captured neatly in the headline RTT figures, but reported waits at many local NHS ADHD services run well past 52 weeks and frequently into years — against a general NHS backdrop of 7.3 million waiting treatments and 105,000+ people waiting over a year.
The NHS is brilliant; the waiting isn't. If the wait is the only problem, though, check Right to Choose first — it can get you a free NHS assessment with an approved independent provider in months, and it may make paying unnecessary.
A realistic private timeline looks like this: book this week, assessment within one to three weeks, written report a week or two later, then — if medication is recommended — two to four months of titration before things are stable. So while the diagnosis itself can arrive within a month, the full journey from booking to settled treatment typically spans three to six months. Fast, but not instant; plan around it if you're timing an assessment before exams or a new job.
What a proper assessment includes
Not all assessments are equal, and the clinician type matters. In the UK, an ADHD diagnosis should come from a consultant psychiatrist, a specialist ADHD nurse or another suitably qualified healthcare professional working within a structured diagnostic framework — for adults, only certain professionals can also initiate medication, so a psychiatrist-led service keeps everything under one roof.
- A structured clinical interview against DSM-5 or ICD-11 criteria, typically 90 minutes or more — not a quick chat or an online quiz score.
- Validated rating scales completed beforehand by you and, ideally, someone who knows you well; for children, school questionnaires.
- A developmental history establishing that traits were present in childhood, not only recently.
- Screening for alternatives and co-occurring conditions — anxiety, depression, sleep disorders and autism can mimic or accompany ADHD.
- A written report with the diagnostic conclusion and recommendations — needed for shared care requests, workplace adjustments and student support (DSA).
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The aftercare bill: titration, prescriptions and reviews
Diagnosis is the start, not the end. If medication is recommended, you enter titration — a supervised period of typically two to four months where dose and medication type are adjusted until stable, with regular check-ins and monitoring of blood pressure, pulse and weight. Privately this typically adds £300–£900 in appointment fees, plus private prescriptions along the way.
Once stable, the big variable is whether your NHS GP accepts a shared care agreement and takes over prescribing at NHS prescription rates (£9.90 per item in England). If they decline — which happens, particularly with some online-only providers — you'll pay privately for medication and periodic reviews indefinitely: realistically £70–£150 a month for stimulant medication plus £100–£250 per review. Ask about shared care acceptance rates before you pick a provider, not after.
If medication isn't recommended, or you choose not to take it, aftercare costs drop sharply — you may need nothing beyond the report, or occasional coaching or therapy, which some providers offer at £60–£120 per session. Diagnosis alone still has value: it unlocks workplace adjustments, student support and a clearer understanding of decades of pattern.
Insurance, Right to Choose and how the routes compare
Health insurance: the position varies more for ADHD than almost any other condition. Some insurers cover assessment on some policies, others class ADHD as a chronic or developmental condition and exclude it, and ongoing medication is rarely covered. If this matters to you, our ADHD assessment cover guide breaks down who covers what — check before assuming your policy pays.
Right to Choose: in England, a GP referral to an approved independent provider under Right to Choose gets the same style of assessment free, usually within months. Self-pay wins on pure speed and clinician choice; Right to Choose wins on cost. Many people sensibly start a Right to Choose referral and only pay privately if the wait proves too long.
Frequently asked questions
How much does a private ADHD assessment cost in the UK?
Typically £500–£1,000 for adults and £700–£1,200 for children. That usually covers the diagnostic interview, rating-scale review and a written report. Medication titration is generally charged separately at £300–£900 across the course, with follow-up reviews at £100–£250 each — so the realistic first-year total is often £1,500–£3,000.
Are online ADHD assessments legitimate?
They can be, if properly run: a video assessment by a registered clinician using structured diagnostic criteria is clinically valid, and online clinics dominate the lower end of the price range. Choose providers regulated by the CQC (or national equivalent), check the assessing clinician's registration, and be cautious of very short assessments or guaranteed-diagnosis marketing. Also check GPs' willingness to accept their shared care requests.
Will my GP accept a private ADHD diagnosis?
For the diagnosis itself, generally yes — a report from an appropriately qualified clinician is a genuine diagnosis. The friction point is prescribing: GPs aren't obliged to enter shared care agreements, and some practices decline them for private or online providers, meaning you keep paying for private prescriptions. Ask your GP practice's stance on shared care with your shortlisted provider before booking.
What does ADHD medication cost privately per month?
Realistically £70–£150 a month for stimulant medication on private prescription, depending on the drug and dose, plus periodic private reviews at £100–£250. If your GP takes over under shared care, medication drops to the standard NHS charge — £9.90 per item in England — which is why shared care is worth so much.
How quickly can I get a private ADHD assessment?
Usually within one to three weeks of booking, and some clinics offer appointments within days. Diagnosis typically comes at or shortly after the assessment itself, with the written report following within a couple of weeks. If medication is recommended, allow a further two to four months of titration before things are stable.
What is titration and why does it cost extra?
Titration is the supervised period after diagnosis when medication type and dose are adjusted step by step until symptoms improve without troublesome side effects. It involves several appointments over two to four months, plus monitoring of blood pressure, pulse and weight — clinical time that's billed beyond the assessment fee, typically £300–£900 in total privately.
Who should carry out an ADHD assessment?
A consultant psychiatrist, specialist ADHD nurse or equivalent qualified professional using a structured diagnostic framework (DSM-5 or ICD-11). For adults, psychiatrist-led services have a practical advantage: the same clinician can diagnose and initiate medication. Check registration (GMC, NMC) and ask who signs the diagnostic report — it shouldn't be a mystery.
Does health insurance pay for a private ADHD assessment?
It varies more than for almost anything else insurers cover. Some policies fund assessment following a GP referral; many treat ADHD as a long-term or developmental condition and exclude it; ongoing medication is rarely covered by anyone. Never assume — check your policy wording, and see our dedicated guide to ADHD assessment cover for the insurer-by-insurer picture.
Why are children's ADHD assessments more expensive?
Because they involve more clinical time and more sources: parent and child interviews, school questionnaires and teacher reports, developmental history, and often longer observation. That pushes typical prices to £700–£1,200 versus £500–£1,000 for adults. Aftercare also differs — children's titration involves closer monitoring of growth alongside the usual checks.
Is paying privately worth it if Right to Choose exists?
It depends what you're buying. Right to Choose gets people in England a free NHS assessment with an approved provider, usually in months — the best value route if you can wait. Paying privately buys speed (days to weeks), choice of a specific clinician, and options outside England. A sensible approach: start the Right to Choose referral, and pay only if its wait proves unworkable.