Is ADHD a disability in the UK? The Equality Act explained

ADHD can be a disability in law, but it is not automatically one. Under the Equality Act 2010, which covers England, Scotland and Wales, you are disabled if you have a physical or mental impairment that has a substantial and long-term adverse effect on your ability to do normal day-to-day activities. A diagnosis is evidence rather than the test itself. Benefits, schools and the NHS’s “learning disability” each have their own definition, and Northern Ireland has its own law.

This guide is general information, not medical advice and not legal advice. Whether one person is disabled under the Act is decided on the facts of their case and, if it is disputed, by a court or tribunal.

Is ADHD a disability under UK law?

The Equality Act 2010 does not list ADHD as a disability. It names only three conditions that are each a disability in themselves: cancer, HIV infection and multiple sclerosis. Regulations add people who are certified as blind or sight impaired. ADHD is not on that list, so the general test applies, and that test looks at the effects of a condition on a person rather than at its name.

The Government’s statutory guidance on the definition of disability mentions ADHD in two worked examples only. In the first, a young man’s ADHD shows itself in several ways, including an inability to concentrate, and the guidance says that, as an impairment with a substantial and long-term adverse effect on day-to-day activities, it would be a disability for the purposes of the Act (the example adds that discrimination because of one of the behaviours it describes is not covered, because that behaviour is an excluded condition under the Act). In the second, a 14-year-old boy with ADHD who often finds it difficult to concentrate and skips from task to task forgetting instructions is given as an example of a substantial adverse effect on taking part in class and in team games in the playground.

Both examples depend on the effects described, and neither says that every person with ADHD is disabled. Courts and tribunals must take the guidance into account where it is relevant, but it is not itself law, and its content dates from 2011.

ACAS, the Advisory, Conciliation and Arbitration Service, says that being neurodivergent “will often amount to a disability” under the Act, and it lists ADHD as a form of neurodivergence. “Often” is a statement about likelihood, not a rule.

What do “substantial” and “long-term” mean for ADHD?

The Act says “substantial” means “more than minor or trivial”. An effect is “long-term” if it has lasted at least 12 months, is likely to last at least 12 months, or is likely to last for the rest of the person’s life. If an effect stops for a time, it is treated as continuing if it is likely to recur. The guidance says “likely” here should be read as meaning that it could well happen.

The guidance says normal day-to-day activities are things people do on a regular or daily basis, and that they can include work and study tasks such as following instructions and keeping to a timetable or a shift pattern, and tasks that involve remembering to do things, organising your thoughts, and planning a course of action and carrying it out. For discrimination at work, the Act has also said since 1 January 2024 that the ability to carry out normal day-to-day activities includes the ability to “participate fully and effectively in working life on an equal basis with other workers”. The guidance pre-dates that change.

The guidance’s appendix lists factors that it would be reasonable to treat as a substantial adverse effect, and “persistent distractibility or difficulty concentrating” is one of them. It also lists factors that it would not be reasonable to treat as substantial, including “inability to concentrate on a task requiring application over several hours”. It calls these lists “indicators and not tests”, and says that whether a person meets the definition depends on the full circumstances of the case.

Here is an invented example of how the test works. Two adults have the same ADHD diagnosis. For the first, ADHD makes it hard to plan the day and follow instructions with several steps, so jobs such as cooking, paperwork and keeping appointments regularly take much longer or do not get done, and this has been true for years. For the second, ADHD causes occasional distraction that they manage with little effort and with no real effect on their routine. The first person is much more likely to meet the test, although both have the same label, because a decision-maker looks at the effect and not the name.

Do you need a diagnosis for ADHD to count as a disability?

No, not under the Equality Act 2010. ACAS says a worker does not need a diagnosis to be considered disabled under the Act. The Equality and Human Rights Commission’s Employment Code says there is no need to establish a medically diagnosed cause for an impairment, because what matters is the effect of the impairment, not its cause. The statutory guidance says that where there is a disagreement, it is more likely to be about whether the effects are enough to meet the definition, and in particular whether they are long-term, than about whether the person has an impairment.

A diagnosis is therefore not required, but it is one way to show that you have an impairment. ACAS says an employer might ask a worker for proof that they have a condition, and that the worker is not legally required to provide it. Because the Act generally decides who is disabled by the effect of an impairment on day-to-day activities, it helps to be able to describe the effects. Notes on these points map onto the parts of the test:

• The impairment: a diagnosis or a letter from a clinician, if you have one.
• The effects: what you find difficult in everyday terms, such as planning, remembering or keeping to a timetable.
• Without treatment: how those effects would be without any treatment (see the next section), and how far coping strategies reduce them or sometimes break down.
• How long and how often: how long the effects have been present, and how often they recur.
• Who knew, and when: when you told your employer, because the duty to make adjustments at work can depend on what the employer knew or could reasonably be expected to know.

Does treatment change whether ADHD counts as a disability?

In general, no, because the Act looks at the effects as they would be without treatment. The Act says that if measures are being taken to treat or correct an impairment, and without them it would be likely to have a substantial adverse effect, the impairment is treated as having that effect. “Measures” include medical treatment. The guidance says the impairment should be treated as having the effect it would have without the measures, even where they bring the effects completely under control, and that medical treatment includes counselling and other therapies as well as drugs. It also says account should be taken of treatment that creates a permanent improvement rather than a temporary one.

The guidance also says that account is taken of how far a person can reasonably be expected to modify their behaviour, for example with a coping or avoidance strategy, to prevent or reduce the effects, but that it would not be reasonable to conclude that a person who uses an avoidance strategy is not disabled, and that if a coping strategy may break down, so that effects sometimes still occur, that possibility must be taken into account.

This describes how the law looks at a person’s situation. It is not a reason to change or stop any treatment, and decisions about treatment belong with you and your prescriber.