How to Get an ADHD Diagnosis in the UK: NHS vs Private

Getting an ADHD Diagnosis in the UK: Your Three Main Options

If you suspect you have ADHD, getting a formal diagnosis in the UK can feel like navigating a maze. Waiting lists are long, the routes are confusing, and the costs of going private are not always clear. This guide breaks down the three main pathways to an adult ADHD assessment, what each one costs, how long it takes, and how to decide which is right for you.

In November 2025, the independent ADHD Taskforce commissioned by NHS England published its final report. It confirmed what many people already know from experience: services across the country are under significant pressure, the number of people seeking assessment has grown rapidly, and this has produced long waits for diagnosis and treatment. The same report noted that recognised rates of ADHD in England remain lower than the expected prevalence, meaning many adults are still undiagnosed.

Route 1: The Standard NHS Pathway

The traditional route begins with your GP. You book an appointment, explain your symptoms, and ask for a referral to your local adult ADHD service or community mental health team. The assessment itself is free, carried out by NHS specialists, and any medication that follows is prescribed at the standard NHS prescription cost.

The catch is time. In many parts of England, waiting lists for an adult ADHD assessment now stretch to several years rather than several months. Waits vary enormously depending on where you live, a postcode lottery that the ADHD Taskforce specifically highlighted. For some people the standard NHS route is still the right choice, particularly if cost is the main concern and the local wait is manageable, but for many the timescale is the deciding factor that pushes them to look at alternatives.

Route 2: NHS Right to Choose (England Only)

Right to Choose is one of the most useful and least understood options available to adults in England. Under NHS legislation, when your GP refers you for a routine assessment such as ADHD, you have a legal right to choose which provider carries out that assessment, including independent providers who hold an NHS contract. Crucially, the assessment remains free at the point of use because the NHS funds it.

In practice this often means a shorter wait than your local NHS service, because you are referred to an independent clinic with capacity rather than joining your area's general queue. Providers who accept Right to Choose referrals include Psychiatry-UK, ADHD 360 and ProblemShared, among others. Their waiting lists are usually shorter than the standard NHS route, though they have grown over time and clinics occasionally pause new referrals when demand spikes.

There are two important points to understand. First, Right to Choose is an England-specific legal mechanism. It does not apply in Scotland, Wales or Northern Ireland, which have their own arrangements. Second, after diagnosis and medication titration, ongoing prescribing usually relies on a "shared care agreement" between the independent provider and your GP. Most GPs accept these, but some practices decline, so it is worth asking your surgery about their policy before you start. In October 2025, a clause in the NHS Payment Scheme that had threatened the future of ADHD Right to Choose was removed, protecting this pathway for patients across England.

Route 3: Going Fully Private

If you want the fastest route and can afford it, a fully private assessment is the quickest way to a diagnosis. You pay the clinic directly and skip NHS waiting lists entirely, often securing an appointment within weeks.

Costs vary by provider, but for adults in the UK an initial private assessment commonly costs between £500 and £1,200. If you need medication, combined packages that include the assessment plus titration (the process of finding the right medication and dose) typically range from around £800 to £1,800 or more. Many clinics then charge ongoing monthly or annual fees for prescription management and reviews.

One common misconception is worth correcting directly: there is no general NHS rebate scheme for private ADHD assessments. You should assume you will not get your money back. Some people do later transfer their care to the NHS through a shared care agreement, which can reduce ongoing medication costs, but the upfront assessment fee is not reimbursed.

NHS vs Private: How to Decide

There is no single right answer, only the route that best fits your circumstances. A few questions can help you decide:

• How long is the wait where you live? Local NHS waits vary dramatically. Your GP or local ADHD service can often give you a rough estimate.
• Are you in England? If so, Right to Choose can offer something close to the best of both worlds: NHS-funded but often faster than the standard queue.
• What is your budget? Private assessment removes the wait but carries a real cost, and ongoing prescription management adds up over time.
• Will your GP support shared care? This affects how affordable long-term medication will be after a private or Right to Choose diagnosis. Ask before you commit.

How to Prepare for Your Assessment

Whichever route you choose, preparation makes the assessment more accurate and useful. A diagnosis relies on evidence that symptoms have been present since childhood and cause difficulty across more than one area of life. Before your appointment, it helps to gather school reports if you have them, note examples of how symptoms affect your work and relationships, and where possible ask a parent or someone who knew you as a child to share their observations. Completing a structured questionnaire in advance can also help you organise your thoughts.

If you are not yet sure whether ADHD is worth investigating, our online ADHD test takes just a few minutes and can help you decide whether to seek a formal assessment. For a more detailed picture to bring to your clinician, our assessment reports provide personalised insights based on your responses.

The Bottom Line

Getting an ADHD diagnosis in the UK takes patience, but you have more options than many people realise. The standard NHS route is free but often slow. Right to Choose offers England residents an NHS-funded assessment that is frequently faster. Going private is the quickest path but comes at a cost with no rebate. Understanding the trade-offs, and asking your GP the right questions early, puts you in the best position to choose the route that works for you.

References

• NHS England (2025). NHS England responds to ADHD Taskforce final report.
• Clinical Partners. NHS Right to Choose wait times and updates.
• Psychiatry-UK. Initial Assessment & Titration Waiting Times.
• All Health and Care UK (2026). How to Get a Private ADHD Assessment in the UK: Costs, Providers & NHS Rebates.

This article is for general information only and does not constitute medical advice. ADHD should be diagnosed by a qualified healthcare professional. If you are concerned about your symptoms, speak to your GP or a specialist clinician. Adeel Sarwar is a Doctor of Clinical Psychology (DClinPsy) specialising in ADHD assessment and treatment. Learn more about our clinical team.

Written & clinically reviewed by

Adeel Sarwar

DClinPsy · Consultant Clinical Psychologist

HCPC Registered BPS Member

Adeel is a Consultant Clinical Psychologist specialising in ADHD assessment and neurodevelopmental conditions. He oversees all clinical content on ADHDtest.ai. Full profile →