So you’re considering getting an ADHD or autism assessment for yourself or your child – but where do you begin?
You’ve probably considered going through the NHS, but after everything you’ve heard on the news, you might be second-guessing yourself. So would a private assessment be the best route?
It can feel like a big decision with several different factors to consider, so here’s everything you need to know to decide whether you should go through the NHS or choose a private ADHD or autism assessment in the UK.
At its core, there’s not much difference between NHS and private assessments for ADHD and autism. Both follow NICE guidelines (National Institute for Health and Care Excellence) and have the same diagnostic criteria and clinical standards.
The main differences are the waiting times, cost and access to ongoing support.
As has been discussed widely in the news, NHS waiting lists for ADHD and autism assessments are at an all time high. As awareness and understanding of neurodiversity improves, there has been a surge in demand, with some reportedly on a waitlist for up to three years. Although there is a range of providers available, waiting times for assessments can range from many months to several years depending on your area.
Private ADHD and autism assessments in the UK usually have much shorter waiting times. Many providers offer appointments within weeks, giving patients the opportunity to get the answers they’re looking for much sooner than going through the NHS.
NHS assessments are free, which is a large reason why waitlists for those providers are so long. Many people are unable to afford the fees for an autism or ADHD assessment and so rely on the NHS funding these appointments for them.
Private assessments involve a fee, although the average price of an assessment can vary depending on which provider you choose. These fees typically cover the clinician’s time, multidisciplinary review, report writing and any follow-up support.
The NHS pathway does offer support for ADHD and autism diagnoses, but this often involves navigating multiple services at once.
Some private providers offer a range of treatment under one roof, with many services including therapy, medication management and other types of post-diagnostic support.
A private assessment can be the best choice for many people. With long NHS waitlists, many opt for private assessments if their child is struggling at school, they need adjustments to perform at work, or are experiencing increasing emotional distress.
You might consider a private assessment if:
Yes, most private diagnoses are recognised in the UK.
This is one of the most common concerns people have, but even private diagnoses are usually accepted by employers, universities and schools, so long as the assessment follows NICE guidelines, is conducted by a qualified clinician and includes a diagnostic report.
It’s worth noting, however, that shared care with your GP is not guaranteed if you choose medication to treat ADHD. Although GPs accept private diagnoses, shared care often depends on local NHS policies. Fortunately, many GPs will still consider shared care arrangements if the assessment meets clinical standards. This is why it’s important to ensure you pick a reputable provider you trust for your assessment.
Not all assessment providers offer the same level of depth. Since ADHD and autism diagnoses have long-term implications for education and employment, as well as general wellbeing, it’s worth doing some research to choose a provider that’s best for you and follows recognised clinical standards.
Before booking, check the service includes:
Since ADHD and autism are neurodevelopmental conditions, clinicians need to understand how traits have appeared across childhood as well as adulthood. That means a high-quality assessment needs to explore a person’s entire developmental history in detail, not just who they are now.
Clinicians often need to know about any early childhood behaviour, difficulties at school, social relationships, communication patterns, emotional regulation and coping strategies. They will often ask for input from parents, carers and partners where possible as well.
All this information shows how traits have developed over time, helping a clinician to build an accurate picture rather than relying on a single snapshot of behaviour exhibited on the day.
Reliable assessments don’t usually restrict themselves to clinical interviews, but use a range of diagnostic tools alongside. These involve structured questionnaires or rating scales for the patient to complete, as well as people who know them well, such as parents, partners and even teachers.
Standardised tools like this help to make sure that the assessment process is consistent and evidence-based so clinicians can make an accurate diagnosis.
ADHD and autism assessments should only be carried out by clinicians who have had relevant training and experience in assessing neurodevelopmental conditions. These can include clinical psychologists and psychiatrists, but also specialist therapists with neurodevelopmental expertise.
In some cases, assessments can involve multidisciplinary input, especially when the presentation of symptoms is complex or additional conditions need to be considered.
A comprehensive diagnostic report is an important part of any assessment. The report should clearly explain:
These reports are often essential for schools, universities, workplaces and healthcare providers to offer the right support and accommodations.
A feedback session can be invaluable for some patients. This is where a clinician explains the outcome of an assessment and gives the patient a chance to answer any questions they may have.
No matter whether you receive a diagnosis or not, the outcome can be an emotional experience for some. A feedback appointment gives you an opportunity to discuss what the results mean and explore what next steps are available.
Assessments shouldn’t just end with a diagnosis. Ideally, patients are given advice on what to do next, regardless of their assessment’s outcome.
Most patients benefit from a provider offering guidance on therapy or psychological support, ADHD medication where appropriate, school or workplace adjustments, and various strategies to manage daily challenges.
The goal of an assessment shouldn’t just be to give a patient a label, but to give them understanding, support and the right resources moving forward.
The cost of a private assessment for ADHD or autism in the UK varies widely depending on the provider, the type of assessment, and the experience and qualifications of the clinicians.The age of the person being assessed can also affect the cost, as assessments for children are often more complex.
Fees differ between clinics, but most private assessments fall within a similar range. In the UK, private assessments typically cost:
The precise cost will depend on a number of factors, such as the number of clinicians required, the depth of the assessment process and the level of follow-up support provided.
A comprehensive private assessment usually involves several stages and significant clinician time, which is reflected in the cost. The fee usually includes:
In many cases, clinicians spend several hours not only conducting the assessment, but preparing the diagnostic report as well.
Costs vary considerably between providers, so it’s always worth checking what’s included before booking an assessment. A lower price may sometimes reflect a shorter or less detailed process, while more comprehensive assessments may involve multiple clinicians and longer appointments.
The full process for an ADHD assessment may take a few weeks from initial appointment to receiving a diagnostic report. This is because most private ADHD assessments involve several stages, including questionnaires, clinical interviews and a feedback session.
Yes. Most clinics offer private ADHD assessments for both adults and children, although usually at different costs. Adult assessments typically involve reviewing childhood history alongside current symptoms.
Yes, a valid ADHD diagnosis should be accepted anywhere. NHS GPs do still accept private diagnoses, but it’s important that the assessments follow NICE guidelines and are conducted by qualified clinicians. However, shared care arrangements for medication can be more complicated and depend on local NHS policies.
Waiting times vary across the UK. Due to demand, there are some areas where patients may wait many months or even several years for an NHS assessment.
Whether a private ADHD or autism assessment is worth it is entirely down to the individual. However, it largely comes down to waiting times and what support you might need.
For some, waiting for an NHS appointment feels unmanageable, and the uncertainty can affect them academically, professionally or emotionally so much that a prompt assessment is invaluable.
At the end of the day, although NHS appointments are available, private assessments offer faster access to answers, reduced uncertainty, a structured pathway to support, and detailed documentation for adjustments or EHCP processes.
Ultimately, it comes down to urgency, budget and personal circumstances. So just ask yourself: do you feel you need to be assessed urgently? Do you have the budget for a private assessment? Will you need structured support after the assessment? If you answered “yes” to any of those questions, then a private ADHD or autism assessment might be the way to go.
At Dr Jo Gee Psychological Therapies, we offer comprehensive ADHD and autism assessments for adults, children and adolescents, with appointments available within just one month.
Our assessments follow NICE guidelines and are conducted by experienced clinicians. We aim to provide clear answers and detailed reports, along with practical guidance for next steps. We also offer post-assessment support, such as medication for ADHD and neurodivergent therapy. This support is all offered by the same team under one roof, eliminating the need for you to navigate different services for support after your diagnosis.
If you’re unsure which route is right for you or your child, feel free to get in touch with our team. We’re always happy to answer questions and help you decide whether a private ADHD or autism assessment is the right step.