Resource guide
Disability Under the Equality Act 2010
A plain English explainer of what the law means by disability, why visible and invisible conditions both matter, and why practical context is so important.
By Calling All Minds·Last updated April 2026
more than minor or trivial
A key part of the legal test.
12 months or more
Or likely to last that long.
both matter
Many disabilities are not obvious.
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People often assume disability is only about visible conditions. The law takes a broader view.
Under the Equality Act 2010, disability can include physical and mental impairments where the effect on day-to-day activities is substantial and long-term. That can include many conditions that other people may not notice straight away.
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What the law means by disability
In plain English, the law asks whether a person has a physical or mental impairment with a substantial and long-term adverse effect on normal day-to-day activities.
- The impairment can be physical or mental.
- The effect must be substantial, meaning more than minor or trivial.
- The effect must be long-term, meaning it has lasted or is likely to last at least 12 months.
- The effect must relate to ordinary day-to-day activities.
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Substantial and long-term
These two ideas are central to the legal definition.
Substantial
This means more than minor or trivial. It does not need to be extreme, but it does need to be meaningful in everyday life.
Long-term
This usually means 12 months or more, or likely to last that long. Some recurring or fluctuating conditions can still qualify.
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Visible and invisible disability
Not all disabilities are visible. In many workplaces and services, the hardest barriers are faced by people whose needs are not obvious at first glance.
That may include chronic health conditions, pain, fatigue, mental health conditions, memory difficulties, neurodivergence, or fluctuating conditions. Good practice does not depend on guessing correctly from appearance. It depends on creating routes for support and responding well when a need is raised.
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Neurodiversity and mental health
Some neurodivergent people and some people with mental health conditions may meet the legal definition of disability, depending on the effect of the condition in the real context of life and work.
Neurodiversity
ADHD, autism, dyslexia, dyspraxia and related differences can create substantial disadvantage in some settings, especially where systems are overloaded, inconsistent, or hard to navigate.
Mental health
Mental health conditions may also amount to disability where the impact is substantial and long-term. Employers should treat mental health with the same seriousness as physical health.
Using this guide
Why this matters in practice
A narrow or outdated idea of disability can make good adjustment practice much harder.
If an organisation only recognises obvious disability, it may miss the people who most need clearer processes, more predictable communication, quieter environments, or better digital systems. Good practice begins by understanding that disability can be visible or invisible, stable or fluctuating, and physical, mental, or both.
Turn reasonable adjustments into a clearer process
Good adjustment practice depends on listening well, recording clearly, reviewing regularly, and avoiding repeated disclosure. AXS Passport is designed to help organisations manage that process more consistently and with more dignity for the individual.