Private Dyslexia and Autism Assessment Costs in the UK (2026 Guide)

NHS waiting lists for educational psychology, autism, ADHD, and dyslexia assessments can run for years. Private assessment removes the wait but introduces a significant cost. Most parents considering this route have two questions: how much does it actually cost, and will the local authority even accept the report?

Here is an honest breakdown of costs, what you get at each price point, and how to ensure a private assessment delivers what you paid for.

Private Educational Psychologist Assessment

An Educational Psychologist (EP) assessment provides a comprehensive cognitive profile — IQ testing, processing speed, working memory, specific learning difficulties, and recommendations for educational provision.

What it costs:

• Full psycho-educational assessment with report: £670–£795 (typical range based on current UK market data)
• Some EPs charge hourly rates for consultation: £100–£150 per hour
• Post-report school meeting attendance (where the EP presents findings): additional cost, typically £100–£200

What you get: A psychometric assessment battery — usually including the WISC-V or similar standardised cognitive test — producing scores across domains including Full Scale IQ, Verbal Comprehension, Working Memory, Processing Speed, and Perceptual Reasoning. The report includes recommendations for provision specifying type, frequency, and delivery requirements.

Who should have one: Any child for whom dyslexia, DLD, ADHD (educational impact), autism (educational profile), DCD, or intellectual disability is suspected. An EP assessment is the most comprehensive and carries the highest legal weight in tribunal proceedings.

Private Dyslexia Assessment (Specialist Teacher)

A specialist teacher with an Assessment Practising Certificate (APC) — assessed by a body such as PATOSS, the British Dyslexia Association, or Dyslexia Scotland — can conduct dyslexia-specific assessments. These are less comprehensive than a full EP assessment but are valid for many purposes.

What it costs:

• Specialist teacher dyslexia assessment: £150–£350 depending on location and assessor
• Includes standardised tests for reading accuracy, reading speed, spelling, phonological processing, and working memory

What you get: A detailed dyslexia assessment report identifying a specific learning difficulty in literacy, quantifying the severity relative to age norms, and recommending classroom accommodations and targeted interventions.

Who should have one: Children with specific literacy difficulties where the primary question is whether dyslexia is present and what accommodations are needed. If the question is broader — including cognitive profile, attention, or other learning needs — a full EP assessment is more appropriate.

Private Autism Assessment

A clinical autism diagnosis is issued by a multi-disciplinary team typically including a clinical psychologist or psychiatrist, a speech and language therapist, and may include an OT. A full private autism assessment is the most expensive assessment type.

What it costs:

• Private autism assessment (MDT): £800–£2,000 depending on the provider and the comprehensiveness of the team
• Some single-clinician assessments (clinical psychologist or psychiatrist only, without full MDT): £500–£900
• ADOS-2 (Autism Diagnostic Observation Schedule) administration as a standalone component: £200–£400

What you get: A clinical report with a diagnostic conclusion based on standardised tools (typically ADOS-2 and ADI-R). This is a medical diagnosis document with legal weight in both educational and other contexts (benefits, social care).

Who should have one: Children for whom autism is the primary clinical question and CAMHS waiting times are unacceptably long. Important note: a private autism diagnosis is not required to access educational support or an EHCP. If the primary need is educational advocacy, an EP assessment may be more immediately useful than a clinical autism diagnosis.

Private ADHD Assessment

What it costs:

• Private ADHD assessment for children (paediatric psychiatrist or clinical psychologist): £600–£1,200
• Includes comprehensive developmental history, standardised rating scales (Conners, SNAP-IV), observation, and clinical interview

Important consideration: A private ADHD diagnosis can be used to request a shared care agreement with the GP for medication, but GP practices vary widely in their willingness to accept private diagnoses for this purpose.

Before spending hundreds or thousands of pounds on private assessment, it's worth understanding exactly how to use the report once you have it. The UK Assessment & Evaluation Guide covers how to commission private reports correctly, how to ensure recommendations are legally enforceable, and what to do when a local authority attempts to dismiss private evidence.

Will the Local Authority Accept a Private Report?

This is the question that paralyses most parents considering private assessment. The legal answer is clear: local authorities must legally consider private assessment reports. Under the SEND Code of Practice 2015, all evidence submitted to an EHC Needs Assessment — regardless of whether it is state-commissioned or privately funded — must be taken into account.

However, "must consider" is not the same as "must adopt." The LA can disagree with a private report's recommendations, particularly if their own commissioned EP produces a contradictory report. The LA cannot simply ignore a private report, but they can commission their own evidence and prefer it.

To maximise the likelihood that a private report carries weight:

1. Ensure the assessor is properly qualified. For an EP, they must be a registered educational psychologist (typically a member of the British Psychological Society's Division of Educational and Child Psychology). For SALT, HCPC registration is required. For OT, HCPC registration. For clinical psychology/autism assessment, HCPC and BPS registration.

2. Ensure the report complies with Tribunal Practice Directions. If the case may go to the First-tier Tribunal (SEND), the report must comply with the Practice Direction on expert evidence. This requires numbered paragraphs, a declaration by the expert of their duty to the Tribunal, a statement of the basis for their opinion, and their qualifications. Not all private assessors produce tribunal-compliant reports without being specifically asked.

3. Ensure recommendations are quantified. The most common way LA panels reject private recommendations is by claiming they are too vague to fund. "Would benefit from additional support" fails. "Requires 4 hours per week of direct intervention by a teacher qualified to Level 5 in literacy support" succeeds.

Cost vs. Strategic Value

Private assessment at £670–£795 for an EP report is not trivial. But set against the context of a 20-week statutory assessment process, a potential tribunal, and the lifelong educational consequences of inadequate early provision, many families find it a necessary investment.

The critical question is: what do you do with the report once you have it? A well-commissioned private report with specific, quantified recommendations is a weapon in a statutory assessment dispute. A vague private report — however expensive — will not move a resistant local authority.

Get the right report. Use it strategically. Know what the LA is allowed and not allowed to do with it.

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