NHS vs Private ADHD Assessment UK: An Honest Comparison

Going private for an ADHD assessment is a significant financial decision — and it’s not the right choice for everyone. This guide gives you an honest comparison so you can decide what’s right for your situation.

Side-by-Side Comparison

Factor	NHS Assessment	Private Assessment
Cost	Free (funded by NHS)	£695 – £2,000+ (self-funded)
Waiting time	2–5 years in most areas of England	Typically 2–6 weeks
Referral needed	Yes — via GP	No — self-referral accepted
Diagnostic quality	NICE-compliant; same criteria	NICE-compliant if CQC registered; same criteria
Report quality	Variable; may be briefer	Generally detailed; suitable for school/work/benefits
Medication initiation	Via NHS psychiatrist; can take additional months	Can begin titration quickly; may transfer to GP shared care
Follow-up	Long-term NHS care pathway	Variable — depends on provider; may need to transfer to NHS
Flexibility	Fixed appointments	Online and in-person; evening/weekend slots common

When the NHS Route Is Better

You cannot afford the private assessment cost
Your local NHS wait is shorter than average (check your local ICAD/CMHT waiting times)
You qualify for the NHS Right to Choose pathway — which allows you to choose a different NHS provider and can be faster than your local service (note: Right to Choose is NHS-funded but not the same as going fully private)
You have complex co-occurring conditions that benefit from integrated NHS care

When Going Private Makes Sense

The NHS wait in your area is 3+ years and you cannot wait that long
Your child is struggling at school and needs a diagnosis urgently to access support
You are an adult in a demanding job and need to access treatment quickly
You have the financial means and want to move quickly
You want a detailed written report suitable for employer, school or benefit claims

Before paying privately, check whether the NHS Right to Choose pathway is available to you. This allows adults in England to be referred to a specialist NHS ADHD provider of their choice — including providers like Psychiatry UK and ADHD 360 — funded by the NHS. Waiting times are still significant but may be shorter than your local service. Ask your GP.

Can I Do Both?

Yes — and many people do. Some adults get a private assessment for speed and to access support quickly, then register with their local NHS service for long-term medication management and follow-up care. A private diagnosis is accepted by NHS services.

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Frequently Asked Questions

Is the NHS Right to Choose different from a private ADHD assessment?

Yes — Right to Choose is an NHS-funded pathway that allows adults in England to choose which NHS provider delivers their ADHD assessment and treatment. It is not private; it is funded by the NHS. However, not all NHS providers accept Right to Choose referrals, and waiting times vary. Private assessments are fully self-funded with no NHS involvement required.

Can I go private if I’m already on an NHS waiting list?

Yes — being on an NHS waiting list does not prevent you from also seeking a private assessment. If you receive a private diagnosis before your NHS appointment, you can inform the NHS service and they may remove you from the waiting list, or you can keep both options open.

Will the NHS accept my private ADHD diagnosis?

Yes — NHS services, GPs and NHS secondary care teams should accept valid private ADHD diagnoses made by appropriately qualified specialists. Some GPs are initially reluctant; refer them to NHS England guidance on shared care prescribing following private diagnoses if needed. The key requirement is that your assessor is GMC-registered and has followed NICE guidelines.

Important: Information on this site is for general purposes only and does not constitute medical advice. Always consult a qualified healthcare professional. Assessment details correct at time of publication (May 2026). ADHD Assessment UK may receive a referral fee from providers listed.

ADHD Assessment UK editorial team