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

Prices vary quite a lot between providers. This article explains the typical costs of a private autism diagnosis in the UK, what should be included, what affects the price, and how to choose a provider you can trust.

Based on prices published by UK providers in October 2026:

• adult autism assessment cost: typically around £1,500 to £2,300.
• child autism assessment cost: typically around £1,500 to £2,300, and sometimes more for complex assessments
• higher-end or complex assessments: up to around £3,800

Many established providers charge the same price for adults and children. Some offer payment plans, or reduced prices for people on certain benefits.

A thorough autism assessment involves several parts, carried out by trained professionals. A full-price assessment usually includes:

• questionnaires before your appointments, about autistic traits, masking and wellbeing
• a developmental history, often using a structured interview such as the ADI-R, with a parent for children or an informant for adults
• an observation, such as an ADOS-2 or ADOS-informed session
• information from school, for children's assessments
• a multidisciplinary team review, where professionals discuss everything together
• a feedback appointment to explain the outcome
• a detailed written report, with practical recommendations

• How many professionals are involved: NICE guidelines recommend a multidisciplinary team, which usually costs more than a single clinician.
• Online or in person: online assessments can cost less, as they avoid clinic costs and travel.
• Age and complexity: children's assessments, or assessments where other conditions need to be considered, may take longer.
• Location: in-person clinics in London and other cities often charge more.
• What's included: reports, feedback appointments and follow-up support aren't always included in the headline price.

Some providers charge separately for:

• school reports or meetings with school, often around £100 to £300
• follow-up appointments, often around £150 to £300
• extra assessment sessions, if more information is needed
• copies of reports, or letters for employers or education
• combined autism and ADHD assessments, which cost more than autism alone

Always ask for a full breakdown before you book, so you know the total cost.

NHS assessments are free, but waiting lists in many areas are long, often a year or more, and sometimes much longer for adults.

In England, Right to Choose may let you choose an NHS-funded provider for your assessment. It's free, but you'll need a GP referral, and waiting times vary between providers.

Private assessments usually have much shorter waits, and you can often book directly. But you'll pay for the assessment yourself, and it's worth checking how the NHS in your area treats private diagnoses. Many GPs and services accept them, especially when they follow NICE guidelines, but some may want to review a diagnosis before offering certain support.

A lower price isn't always better value. Before you book, it's worth checking that the provider:

• follows NICE guidelines for autism assessment
• uses a multidisciplinary team, especially for children
• uses clinicians registered with the right professional bodies, such as the General Medical Council or the Health and Care Professions Council
• is registered with the relevant regulator, such as the Care Quality Commission in England
• gathers a developmental history, and information from school for children
• considers other conditions that can look similar to autism, or occur alongside it
• provides a detailed report you can share with your GP, school or employer

It's also worth asking what happens if autism isn't diagnosed, and what support is offered either way.

A diagnosis is a starting point, not an end point. NICE guidelines recommend that people are offered support after an autism diagnosis. Ask whether the price includes:

• a feedback appointment to talk through the outcome
• information about autism, and what the diagnosis means
• a follow-up appointment or check-in
• signposting to local services, support groups or charities
• advice for school, college or work

Some providers include this support, while others charge extra or offer very little.

Raiys works nationwide, offering online autism assessments carried out by an experienced, specialist team. Our assessments follow NICE guidelines, include a multidisciplinary review, and come with a clear, detailed report designed to be shared with your GP, school or employer.

You'll also have access to the Raiys app, where you can securely read your report and use BeChange, our digital support programme. BeChange helps you understand your diagnosis and build practical, everyday strategies at your own pace, with resources across five areas: Mind, Resilience, Life, Move Matters and Nutrition.

If you're in crisis right now, call 999, go to A&E, or call Samaritans free on 116 123, any time of day or night.

Ready to take the next step? Find out more about our autism assessments and prices.

Prices in this article are typical figures as of October 2026. Fees change regularly, so it's always worth checking the latest prices and what's included directly with providers before you book.