Diagnosis, Disclosure and Support: What Employers Actually Need to Know
Diagnosis, disclosure and support for neurodivergent employees can sound more complicated than it should. Do you need to wait for a diagnosis? What should support look like? We know leaders and managers have a lot of questions about how best to support their teams in this context.
So, whether you're thinking about what your legal obligations are, how to respond when an employee discloses their neurodivergence, or how to support someone who is still waiting for a diagnosis, we’ve pulled together the questions we hear most often.
1. Do employers need to wait for a formal diagnosis before offering support to a neurodivergent employee?
No. A formal diagnosis is not required. What matters is whether the employer is aware that an employee is experiencing difficulties that may amount to a disability, and that appropriate support could help.
The threshold for the duty to make reasonable adjustments under the Equality Act 2010 arises when an employer knows (or reasonably ought to know) that an employee has a disability. Yet, regardless of the legal obligation it’s best to act early to offer support so that employees have everything they need to do their job well. At Brain in Hand we advise a diagnosis-agnostic approach to ensure support is available whether an employee has a diagnosis, has disclosed or not.
2. Our research shows that many employers wait for a diagnosis anyway. Why does this happen?
Our research into The Confidence to Act found that the primary reason is a lack of confidence. Many employers assume that a diagnosis will tell them what support is needed and what they are entitled to offer. Without it, they feel they are acting on uncertain ground.
This assumption is understandable, but it is not borne out by our research. Our six-month study of nearly 200 neurodivergent employees found that diagnosed and self-identified employees arrive at work with the same level of need across measures including wellbeing, anxiety, stress and fatigue. They also benefit from support just as clearly once they receive it. The diagnosis doesn’t change the need, just whether employers feel entitled to act.
3. What does the Equality Act say about neurodivergence and disability?
The Equality Act 2010 defines disability as a physical or mental impairment that has a substantial and long-term adverse effect on a person's ability to carry out normal day-to-day activities. Many neurodivergent conditions (including autism, ADHD and dyslexia) meet this definition, though whether they do in any individual case will depend on the specific impact on that person's life.
Critically, the duty to make reasonable adjustments does not require a confirmed diagnosis. It requires knowledge of the impairment and its impact. Employers should focus on what an employee needs to perform at their best, rather than the diagnosis.
4. How does disclosure work in practice and what should employers do when an employee discloses?
Disclosure is the moment an employee chooses to share information about their neurodivergence with their employer. It can happen formally or informally to HR or to a line manager, and at any point in an employee's career.
Our research found that disclosure alone does not open up access to support. In fact, employees without a formal diagnosis are around half as likely to have a formal workplace adjustment in place even when they’ve disclosed.
When an employee discloses, the response should be prompt and concrete. A useful framework is to: ask what would help, agree on an adjustment to test for a defined period, and then review whether it has made a difference.
5. What about employees who haven't disclosed or who choose not to?
Our research found that 78% of HR professionals agree that neurodivergent employees in their organisation are suffering in silence. Many choose not to disclose because they fear judgement, worry it will affect their career progression, or simply do not feel safe enough to do so.
84% of senior HR professionals in our research agreed that neurodivergent employees choose not to disclose because they fear being judged or don't feel supported. This is an issue with organisational culture and organisations can address it by making it clear that support is available regardless of diagnosis or formal disclosure.
6. How long does it take for support to make a difference?
Our research suggests there is a recognisable sequence. First, employees feel supported which is an emotional shift that may not immediately be visible in their behaviour. They then feel more confident. That confidence translates into different behaviours: staying in a role rather than leaving, improved productivity, reduced absence.
Meaningful, lasting behaviour change typically takes three to six months. This is why consistent, sustained support matters more than one-off interventions, and why Brain in Hand's model of ongoing coaching alongside digital tools is designed to work over time, supporting employees with incremental improvements across many aspects of their work and personal life.
7. What role should line managers play and how do we support them?
Line managers are one of the most significant factors shaping the day-to-day experience of neurodivergent employees. Our Missing Middle research found that a third of neurodivergent employees ranked a supportive line manager as the single most important component of a neuroinclusive workplace, with 44% placing it in their top three priorities.
75% of employers in our research reported concern that line managers feel overwhelmed by the complexity of supporting neurodivergent colleagues. Most managers want to help but don’t have the practical knowledge, confidence, or feel they have organisational backing.
When an employee discloses, managers need a clear first step. Starting with: "I want to make sure you have what you need to do your best work, can we talk about what would help?" is a strong foundation. Managers should also know they are not expected to have all the answers. HR teams are there to support them proactively, not only to be called in when things have gone wrong.
8. How should organisations handle intersectionality for example, where neurodivergence overlaps with other aspects of an employee's identity?
Intersectionality compounds the challenges employees experience. A neurodivergent employee who also belongs to an ethnic minority group, has a disability, or is from a lower socioeconomic background may face layered barriers that a single-issue approach will not address.
The most effective response at an organisational level is to get the fundamentals of good management right. A manager who builds trust, listens well, creates psychological safety and seeks to understand individual need will provide a better experience for employees with multiple intersecting identities than any policy alone. Good management is good management for everyone.
9. What role does occupational health play and where does it fit in relation to other support?
Occupational health can be a valuable part of a supportive process, particularly in providing an independent, empathetic perspective on what an employee needs. Where it works well, occupational health helps to create a constructive, personalised dialogue between the employee and the organisation.
Where it works less well is when occupational health makes a recommendation and the employer doesn’t act on it either promptly or at all. The assessment itself has no value unless it is followed by a concrete response. Occupational health is one input into the support conversation.
It’s also worth noting that occupational health isn’t the only route to support, and in many cases it’s not the right starting point. Direct, ongoing support through coaching, digital tools, and manager enablement can reach employees earlier and more consistently than a formal occupational health process.
10. How should HR support a neurodiversity employee resource group or network within their organisation?
The most important thing HR can offer a neurodiversity network is partnership- helping people navigate organisational processes, access budgets, and connect with senior sponsors who can advocate for the network's priorities at a leadership level.
Where neurodiversity networks thrive, they typically have visible senior sponsorship, HR support in accessing the resources they need, and a clear channel for feeding employee experience back into organisational decision-making. What the network focuses on should be driven by the employees within it and HR's role is to respond to those priorities and help remove the organisational barriers that would otherwise prevent progress.