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ADHD assessment waiting times UK
ADHD assessment waiting times in the UK vary widely by area and route, and there is no single national figure. Standard NHS waits can run to many months in some places, while NHS Right to Choose or a private assessment can sometimes be quicker. The most reliable way to know your likely wait is to ask the specific service or provider for their current expected time. This is information, not medical advice.
Information only. We do not publish a single waiting-time figure because it changes constantly and differs by area. Confirm the current wait directly with the service or provider.
Why the wait varies so much
Demand for adult ADHD assessment has risen faster than many services can keep up with, and capacity differs from area to area. As a result, two people in different parts of the country can face very different waits for the same kind of assessment. There is no reliable national average we can quote, which is why we point you to the specific service for a current figure rather than publish a number that may mislead.
What affects your wait
- Your area. Local service capacity and demand are the biggest factor.
- Your route. Standard NHS, NHS Right to Choose, and private routes can have very different lists.
- The provider. Even within one route, providers vary, so it is worth comparing current waits.
Options that can shorten the wait
In England, NHS Right to Choose lets you pick an approved provider, some of which have shorter lists, while still being free. A private assessment can also be quicker if you can fund it. Our NHS vs private comparison and the three-way Right to Choose vs private vs NHS guide weigh the trade-offs. For cited figures on demand and waits, see our UK ADHD statistics. Whichever you consider, check the provider's current waiting time before committing.
Frequently asked questions
How long is the wait for an NHS ADHD assessment?
There is no single national figure, and waits vary a great deal between areas. Some people wait many months or longer. Because the picture changes, the most reliable step is to ask your GP or the specific service for their current expected wait.
Can NHS Right to Choose reduce the wait?
It can, in some cases. Right to Choose lets you pick an approved NHS provider, and some have shorter lists than a local service. It is not guaranteed to be faster, so check the provider's current waiting time before deciding.
What can I do while I wait?
You can keep notes on how symptoms affect your daily life, which may help at the assessment. You can also read about ADHD from trusted sources such as the NHS and ADHD UK. None of this is a substitute for a clinical assessment, and it is information, not medical advice.
Does paying privately always avoid a wait?
Private providers often have shorter waits, but this is not universal and some have lists too. Confirm the current wait with the specific provider rather than assuming private is always immediate.
Editor, ADHD Helper
Oliver leads ADHD Helper's editorial coverage of adult ADHD. He researches and writes the plain-English explainers on getting an ADHD assessment through NHS Right to Choose or privately, and on the products and tools people use to manage ADHD, drawing on guidance from the NHS, NICE and the Royal College of Psychiatrists. He is clear that the site is information, not medical advice, and that diagnosis is for a registered clinician.
Last reviewed: 8 June 2026