Reasonable Adjustments Without a Diagnosis: Why Needs-Led Support Works Better

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Author – John Harrington

Can you get reasonable adjustments without a diagnosis?

Often, yes. Under the Equality Act 2010, disability is defined by its effect: a physical or mental impairment that has a substantial, long-term effect on normal day-to-day activities. The law doesn’t require a formal diagnosis.

And many helpful changes don’t need a legal test at all. Clearer instructions, fewer interruptions or a quieter desk are simply good management.

A formal diagnosis can bring understanding, validation and access to specialist support. It can help an employer and employee talk about a condition with more confidence. But treating diagnosis as the gateway to support creates problems.

Diagnosis isn't equally available

Waiting lists, cost, where you live, cultural expectations and knowing how to navigate the system all affect who gets assessed, and when.

In September 2026, the Nuffield Trust published an analysis of disability benefit claims (Personal Independence Payment, or PIP) linked to ADHD and autism among 16–17-year-olds. Claims tripled in England’s least deprived areas between 2019 and 2025, faster than in the most deprived areas. The researchers linked this partly to greater use of private diagnosis among better-off families.

The study was about benefits, not employment. But the lesson for employers is clear: systems that depend on a formal label may reproduce inequality in who gets diagnosed.

Needs-led support starts somewhere else. It asks: what barrier is affecting this person’s work, and what reasonable change might help?

Support can start with the barrier, not the label

An employee may know that a noisy open-plan office stops them concentrating, that fast verbal instructions are hard to remember, or that sudden changes of priority throw them off course. They may not know whether ADHD, autism, anxiety, menopause, a sleep problem or something else is behind it.

A manager doesn’t need to diagnose anyone, and shouldn’t ask for unnecessary medical information. They can:

clarify priorities
give instructions in writing
reduce avoidable interruptions
agree a short trial while getting appropriate advice, for example from occupational health.

Many of these changes help the whole team. Clear agendas, good notes and predictable handovers aren’t medical interventions. They’re signs of a well-run organisation. (See why smart people struggle at work, and why it’s often a design issue.)

Why waiting for disclosure doesn't work

When support only starts after formal disclosure, the organisation finds out about barriers late. Some employees won’t have a diagnosis. Others fear stigma, damage to their career or loss of privacy. People from groups that diagnostic services have historically overlooked may be less likely to be recognised at all.

The result is a hidden filter. People who can put up with the environment, get paperwork or keep pushing are more likely to stay. People who can’t may be managed for underperformance, or leave, without the organisation ever understanding why.

This doesn’t mean abandoning individual reasonable adjustments or legal processes. It means building a basic level of accessibility, so employees don’t have to reveal sensitive information before everyday work makes sense to them.

Accessible by default, tailored where needed

Universal design means building work so it’s accessible to as many people as possible from the start. For thinking and communication, that includes:

clear expectations
structured meetings with agendas
information in accessible formats
more than one way to contribute, such as in writing as well as out loud
written records of decisions
one reliable place for priorities.

Individual adjustments are still needed, because no universal design can anticipate every sensory, communication, health or executive-function need. The two work together: make the default environment more inclusive, then tailor support where a specific barrier remains.

A needs-led conversation might ask:

Which part of the work is difficult?
When is it easier or harder?
What outcome is essential?
What change could we try?
How will we know if it’s working?

These questions give managers practical information without asking them to make medical judgements.

Fair doesn't mean identical

Some managers hold back from informal changes for fear of setting a precedent or treating colleagues differently. But fairness doesn’t mean everyone gets the same arrangement. It means using a clear, consistent way of deciding, based on the role, the barrier, what’s proportionate and the evidence.

Explain the principle without revealing personal details: “We support people to do their best work, and we make decisions based on context.” Record why an arrangement exists, its limits and when it’ll be reviewed. This makes decisions easier to defend and reduces resentment caused by half the story. Our guide to reasonable adjustment disputes covers this in more detail.

Where employers can start

Review where you ask for a diagnosis or proof. Some evidence may be needed for particular decisions, but other requirements may exist out of habit.
Check that low-risk changes can happen quickly, and that managers know what they can approve themselves.
Track the barriers people describe, not just diagnostic categories. Patterns such as interruptions, unclear priorities, sensory load and meeting pressure can guide wider improvements without exposing anyone’s personal data.

Refocus helps organisations build needs-led processes and accessible defaults, alongside proper individual support. Find out more about our work with organisations. If you’re an employee wondering whether coaching could help, see our support for individuals.

If a capable employee can describe the barrier and suggest a workable solution, what do you gain by making them wait for a label?

Book a free discovery call

Frequently Asked Questions

Do I need an ADHD diagnosis to get reasonable adjustments at work?

Not necessarily. The Equality Act 2010 defines disability by its long-term effect on day-to-day activities, not by diagnosis. Many employers will also make helpful changes informally. Occupational health advice can help where the situation is unclear.

Can an employer ask for proof of a condition?

An employer can ask for reasonable information, such as occupational health advice, to make a decision. They should only ask for what they need, keep it confidential, and not delay simple, low-risk changes while waiting for it.

What is needs-led support at work?

Needs-led support starts from the barrier someone is facing, such as noise, unclear instructions or constant interruptions, rather than their diagnosis. It focuses on practical changes that help the person do their job, and often improves work for others too.

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