Private Autism Assessment Cost UK: Fees & What’s Included

Written by: Dr Rano Bhadoria, Consultant Adult Psychiatrist, Private Medical Clinic
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At Private Medical Clinic, a private autism assessment costs £1,495 for an adult and £1,795 for a child. This coversthe full diagnostic process, not just a single appointment, using gold-standard tools, a same-day diagnosis wherever possible, and a professionally issued, NHS-recognised Autism Letter. Post-diagnosis support such as coaching or therapy is arranged and priced separately.

How much does a private autism assessment cost in the UK?

Prices across the wider UK market vary considerably by provider and format. Published comparisons show private adult assessments ranging from around £800 to £1,500 for an online appointment and £1,200 to £2,000 in person, with child assessments typically £1,500 to £2,500 or more where multi disciplinary input is needed. Private Medical Clinic pricing sits within these published ranges for both adult and child assessments. As with any comparison, it’s worth checking exactly what’s included before assuming a lower headline price is better value.

What’s included inthe Private Medical Clinic price?

The fee covers a six-step diagnostic process: pre-assessment screening, diagnostic interviews and developmental history, an observational assessment using ADOS-2, collateral information and questionnaires from people who know you well (or, for children, from parents and school), a multidisciplinary review, and a feedback session with a detailed writtenreport. Assessments are led by an experienced autism consultant and use ADOS-2and ADI-R, the same gold-standard tools used in NHS diagnostic pathways. A same-day diagnosis is provided wherever possible, along with a professionally issued, NHS-recognised Autism Letter you can share with your GP, employer or school.

Are there additional costs?

The core assessment fee is usually the whole cost, but a few things can add to the total. If you want ongoing support after diagnosis, options suchas Cognitive behavioural therapy, ASD coaching or life skills coaching, medication management, or private GP aftercare are arranged and charged separately from the assessment itself. For children, a school report or meeting to discuss findings with staff, where requested beyond the standard written report, may also carry an additional cost, and some providers charge separately for a follow-up appointment some weeks after diagnosis to check how things aregoing.

Why do private autism assessment costs vary so much?

Autism assessments are more variable in price than many other private health services, largely because the diagnostic process itself variesin depth. An online-only assessment with a single clinician is generally cheaper than an in-person, multidisciplinary assessment involving a team and observational testing. Child assessments tend to cost more than adult ones because they usually require developmental history from parents, input from school, and sometimes more than one specialist. Whether the fee bundles in the feedback session, written report and follow-up support, or charges for these separately, is the other major factor, so it’s worth checking scope ascarefully as price when comparing providers.

How does thiscompare with the NHS?

An NHS autism assessment is free, but access depends on beingreferred and then waiting your turn. According to the National Autistic Society, 236,225 people in England were waiting for an autism assessment as ofJune 2025, and the average wait is now over 17 months, around 200 days longer than the year before. Nearly 89% of people waiting have already exceeded the13-week timeframe recommended by NICE guidance. A private assessment doesn’t change the diagnostic criteria used, ADOS-2 and ADI-R are the same tools used across the NHS, but it removes that lengthy queue, which is the main reasonpeople choose to pay for one.

Whathappens during a private autism assessment?

The process starts with pre-assessment screening to understand your history and current concerns. This is followed by detailed diagnostic interviews covering developmental history, and an observational assessmentusing ADOS-2, a structured, gold-standard tool that looks at social communication and behaviour directly. Collateral information is gathered frompeople who know you well, or for a child, from parents and school, usingstandardised questionnaires. A multidisciplinary team then reviews all of this evidence together before you receive a feedback session and a detailed written report, along with an Autism Letter if a diagnosis is confirmed.

Who mayconsider a private autism assessment?

Adults who suspect they may be autistic and don’t want to wait wellover a year on the NHS pathway are the most common reason we see, often afteryears of feeling different without an explanation. Parents of a child showingsigns of autism, who want clarity sooner rather than watching a lengthy NHS queue extend further, are another common reason. It’s also a reasonable option for anyone whose NHS assessment has stalled or been delayed repeatedly and whowants a faster, equally rigorous route to a diagnosis.

Is a private autism assessment worth the cost?

That depends on how much the wait itself is costing you, in stress,in delayed support at work or school, or in simply not knowing. You’re payingfor time, an assessment within weeks rather than 17 months or more, and for a comprehensive, multidisciplinary process using the same diagnostic tools as the NHS. It isn’t a shortcut to an easier or more favourable diagnosis. For someone who needs clarity now, whether to access workplace adjustments, school support,or simply to understand themselves better, most people find that trade-off reasonable. For someone with no pressing need, the NHS route remains a valid, free option, provided you’re prepared for a long wait.

How to book an autism assessment with Private Medical Clinic

You can book a private autism assessment directly through our autism assessments page, available for adults and children with flexible in-clinic or online appointments. Full pricing for this and our other services is listed on our fees page.

FAQ About Autism Assessments