Private ADHD Assessment Cost UK 2026: The Full Price Guide

Private ADHD assessment costs in the UK range from under £700 for a basic online adult assessment to over £2,000 for a comprehensive in-person child assessment. This guide breaks down exactly what you’re paying for — and how to avoid overpaying.

How Much Does a Private ADHD Assessment Cost in the UK?

Assessment type	Low end	High end	Typical
Adult — online	£695	£950	£800
Adult — in-person	£900	£1,500	£1,100
Child (under 18) — online	£900	£1,600	£1,200
Child (under 18) — in-person	£1,000	£2,000	£1,500
Combined ADHD + autism	£1,500	£2,800	£2,000

These are 2026 UK market prices for private self-pay assessments. Prices correct at time of publication — always confirm with the provider before booking.

What’s Included in the Cost?

A reputable private ADHD assessment should include all of the following within the quoted price:

✅ Pre-assessment questionnaires (ASRS, Conners or equivalent)
✅ Observer/collateral questionnaire for a parent, partner or colleague
✅ Clinical assessment appointment (60–90 mins for adults, 90–120 mins for children)
✅ Formal written diagnostic report (usually issued within 1–2 weeks)
✅ Letter to GP or referrer

The following are usually not included and charged separately:

❌ Medication titration (finding the right ADHD medication and dose) — typically £150–£400 per follow-up
❌ Ongoing prescribing (after initial diagnosis)
❌ Psychological therapy or ADHD coaching
❌ School reports or educational psychologist input

What Affects the Price?

Clinician seniority: Consultant psychiatrists typically cost more than psychologists. Both are valid for ADHD diagnosis if appropriately qualified
In-person vs online: Online assessments are usually £100–£300 cheaper. Both are clinically equivalent when conducted properly
Child vs adult: Child assessments typically cost more due to longer appointment times and the need to gather school information
Location: London providers are typically 10–20% more expensive than providers in other regions
Provider type: Large national providers (e.g. Clinical Partners, ADHD 360) often have fixed transparent pricing; independent psychiatrists may charge more but offer more personalised service
Co-occurring conditions: If autism or other conditions are also assessed, expect to pay significantly more

How Does Private Compare to NHS Cost?

NHS ADHD assessments are free at the point of use — but come with NHS waiting times of 2–5 years in many areas of England. The real-world cost of waiting includes lost productivity, untreated symptoms, strain on mental health and missed support at school or work.

Many adults who go private report that the cost was recovered within months through improved work performance, reduced sick days, or successful benefit claims enabled by the formal diagnosis.

Are There Ways to Reduce the Cost?

Choose online over in-person — saves £100–£300 with no clinical difference
Check if your PMI covers it — some private health insurance policies cover ADHD assessments; check your policy documents
Look for combined assessments — if you think ADHD and autism may both be present, a combined assessment is usually cheaper than two separate ones
Compare 2–3 providers — prices vary significantly for equivalent quality. Use our free matching service to get details from local providers
Ask about payment plans — some providers offer instalments

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Frequently Asked Questions

How much does an adult ADHD assessment cost in the UK?

A private adult ADHD assessment in the UK typically costs £695–£950 for an online assessment or £900–£1,500 for in-person. The price includes the clinical appointment, pre-assessment questionnaires, a formal written report and a letter to your GP.

How much does a child ADHD assessment cost?

A private ADHD assessment for a child (under 18) typically costs £900–£2,000 depending on the provider, location and whether it’s online or in-person. Child assessments cost more than adult assessments because they require longer appointments and school information gathering.

Does private health insurance cover ADHD assessment?

Some private health insurance (PMI) policies cover ADHD assessments — but many specifically exclude neurodevelopmental conditions. Check your policy documents or call your insurer directly. AXA, Bupa and Aviva all have different coverage rules. If covered, you will typically still need a GP referral.

Is a cheaper ADHD assessment less reliable?

Not necessarily — some of the most affordable providers (such as ADHD 360 and CARE ADHD) have strong clinical standards and CQC registration. Price reflects business model and overheads more than clinical quality. The key is to verify CQC registration, GMC-registered clinicians and NICE-compliant assessment process regardless of price.

Important: The information on this website is for general informational purposes only and does not constitute medical advice. A private ADHD assessment provides a clinical diagnosis from a qualified professional but is not a substitute for a full NHS assessment or ongoing clinical care. Always consult a qualified healthcare professional about your or your child’s health. Assessment costs and provider details correct at time of publication (May 2026) — always verify directly with providers before booking. ADHD Assessment UK is a lead generation service. We may receive a referral fee from assessment providers. We are not a medical service and do not provide clinical assessments or diagnoses.

ADHD Assessment UK editorial team