ADHD at work
Telling your employer you have ADHD
You are not legally required to tell your employer about ADHD, and the choice is genuinely yours: disclosure is what switches on the duty to make reasonable adjustments (an employer must act once they know or reasonably should know), but it also shares information you cannot unshare. The pragmatic middle path many people use: disclose formally but narrowly, in writing to one manager or HR, paired immediately with the two or three specific adjustments you want, so the conversation is about solutions rather than the diagnosis.
Information only, not legal advice. Knowledge trigger for the adjustments duty from ACAS: reasonable adjustments, checked 19 July 2026.
The honest trade-offs
What disclosure buys you
- The legal duty to make reasonable adjustments switches on.
- Struggles get reframed: "careless" becomes "needs written actions".
- Performance processes must take the disability into account.
- It unlocks workplace conversations Access to Work support may need.
- The energy cost of masking drops.
What it costs
- You cannot un-tell it, and cultures vary in maturity.
- Some managers hear a label, not a solution list.
- Stereotyping is illegal but not extinct; enforcement takes energy.
- In small teams, "confidential" can be leaky in practice.
There is no universally right answer. Signals worth weighing: how the employer has treated other health conversations, whether adjustments you need are impossible to get informally, and whether a performance process is starting (disclose before it concludes, not after).
Three ways to say it
The solutions-first version (most situations):
"I have ADHD, which mostly shows up for me as [two real examples]. Two changes would make a real difference: [adjustment 1] and [adjustment 2]. Can we try them for six weeks?"
The formal version (creates the record, switches on the duty):
"I am writing to let you know I have ADHD, which is a condition covered by the Equality Act 2010. It affects me at work in the following ways: [list]. I would like to discuss reasonable adjustments, and I suggest we start with: [list]."
The no-label version (working preferences, no diagnosis):
"I work best with written actions after meetings and a quiet spot for focus work. It makes a measurable difference to what I deliver. Can we set that up?"
The no-label version gets many people everything they need with nothing on file. Its limit: none of the Equality Act machinery applies until the employer actually knows, so if informal asks are refused, the formal version is the next step, not more informal asking. Pick the adjustments to name from the adjustments table.
One thing disclosure does not do
It does not notify anyone outside your employer. Nothing goes to future employers, and references cannot lawfully be turned into a health broadcast. Access to Work is also separate: you apply directly to the DWP, and for many support types your employer's involvement is minimal. If you have not been assessed yet and want the diagnosis first, start with Right to Choose.
Frequently asked questions
Am I legally required to tell my employer I have ADHD?
No. There is no general duty to disclose a condition to an employer, at application, interview or in post. The main exceptions are safety-critical roles and specific regulated questions (for example some driving, aviation or medical roles), and honest answers on insurance or occupational health forms you choose to complete.
Can an employer ask about my health before offering me a job?
The Equality Act restricts pre-offer health questions: before a job offer, employers can generally only ask about health where it is needed to check you can do something intrinsic to the role, to make interview adjustments, or for monitoring. After an offer, health questions are allowed, and lying on a direct post-offer questionnaire can later be treated as misconduct, so the safer path there is accurate answers.
If I never disclose, do I lose my rights?
You keep protection against discrimination, but the practical duty to make reasonable adjustments only bites when the employer knows, or reasonably should know, about the disability. An employer cannot adjust for what it cannot know. Disclosure, in writing, is the switch that turns the adjustments duty on.
Do I have to tell my whole team?
No. Disclosure to your employer can be as narrow as one manager or HR, and you can ask for it to be kept confidential. Many people separate the two conversations: a formal note to HR that creates the record, and a lighter conversation with the immediate team about working preferences, with no diagnosis mentioned.
What if I am treated worse after disclosing?
Worse treatment because of a disability, or because you asked for adjustments, is exactly what the Equality Act prohibits: discrimination, harassment and victimisation are all challengeable. Keep records with dates, raise it internally first, and see our employment rights guide for the escalation route including ACAS early conciliation.
Editor, ADHD Helper
Adam leads ADHD Helper's editorial coverage of adult ADHD, and he writes it from lived experience: Adam has ADHD himself, diagnosed as an adult, and has been through the assessment routes and the daily workarounds this site covers. He is the founder and managing director of Muswell Rose and researches 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: 19 July 2026