Coping With Mental Illness: A Practical Guide for the Workplace

You're managing a diagnosed condition — anxiety, depression, bipolar disorder, OCD, or something else — and also managing a job. Most advice on this topic stops at "talk to someone" or "practise self-care," which is true and almost entirely unhelpful when the actual questions are: do I tell my manager, what happens if I do, and what do I do on the days it's genuinely hard to function.

Those are practical, structural questions, and they have practical, structural answers — some legal, some psychological, all more useful than generic wellbeing advice. Here's what actually helps.

Why this is harder than it should be

A widely-cited UK survey of 1,000 employed adults, commissioned by CIPD-accredited training provider DPG, found 85% still believe stigma around mental health and stress exists in the workplace, and 58% said they wouldn't feel comfortable telling their manager about a diagnosis. That gap between stated support and lived experience is real, and it's why the disclosure decision below feels so much more fraught than "just tell your manager" suggests.

The scale of the issue is larger than most workplaces acknowledge: the Health and Safety Executive's latest figures show 964,000 UK workers were suffering from work-related stress, depression or anxiety in 2024/25 — a stress-specific figure, not the wider work-related ill-health total, which is different and higher. That's the structural reason coping with a mental illness at work so often falls entirely on the individual rather than being genuinely supported by the system around them.

The disclosure decision nobody tells you how to make

Under the UK Equality Act 2010, employers have a legal duty to make reasonable adjustments for employees with a disability, which includes many mental health conditions that have a substantial, long-term effect on daily activities. Critically, though, this duty only applies once an employer knows, or could reasonably be expected to know, about the condition — meaning the adjustments the law provides are largely inaccessible until you disclose.

This creates a genuine dilemma, not a simple choice. Research on workplace disclosure finds that while most employers say they'd prefer earlier disclosure, many employees delay or avoid it entirely because of anticipated discrimination or a wish to keep the information private — and that caution isn't unfounded, since research also shows a persistent gap between the adjustments the law provides for and what employees who do disclose actually receive in practice.

There's no universally correct answer here. What helps is treating it as a genuine decision with real trade-offs, rather than something you're failing at by not disclosing, or reckless for disclosing. Useful questions to weigh: is the condition currently affecting your work in a way adjustments could address; do you trust this specific manager, separate from company policy; and what happens practically if it doesn't go well.

What actually helps day to day

None of the below depends on your employer getting this right. These are things within your control.

Separate the condition from the workload, on paper

On a difficult day, the mental illness and the task list can feel like a kitchen counter piled with unwashed dishes, unopened post and today's shopping all in one stack — everything looks equally urgent because it's all jumbled together. Writing down specifically what needs doing today, separate from how you're feeling about doing it, works the same way as sorting that pile: once you can see what's actually rubbish, what's post, and what's today's job, most of it turns out smaller and more manageable than the whole undifferentiated heap suggested. This is exactly the gap OCCO's Priority Pad is designed to close: a pad built to hold what matters when everything feels like too much, so the list exists outside your head rather than adding to the internal noise.

Identify your actual triggers at work, specifically

Vague awareness that "work is stressful" is less useful than identifying the specific triggers — a particular type of meeting, a specific person's communication style, a recurring deadline pattern. Specificity lets you plan around a known trigger rather than being caught by a vague, undefined stress.

Build one low-stakes support relationship before you need it

This doesn't have to be a formal disclosure to a manager. A colleague who knows enough to notice if you're struggling and check in, without needing the full clinical picture, provides real support without requiring the higher-stakes disclosure decision above.

Use existing workplace resources, even if awareness is low

Many UK organisations offer Employee Assistance Programmes, but awareness remains low even where they exist — meaning many employees never use a genuine, confidential resource simply because nobody told them clearly it was there. It's worth actively checking your intranet or HR contact for what's available, rather than assuming nothing exists.

Plan for bad days in advance, not during them

Decide, on a good day, what a bad day looks like practically: what gets deprioritised, who you'd tell, what "I need to step away for ten minutes" looks like in your specific role. Making these decisions in advance means you're not trying to problem-solve from inside the difficulty itself.

What not to do

Don't assume disclosure is either always right or always wrong — it's a genuine decision with real trade-offs specific to your workplace and manager, not a moral test. Don't rely on masking (suppressing visible symptoms to appear unaffected) as a long-term strategy. Masking works a bit like leaving your phone's screen brightness cranked up and every app running in the background: it looks fine for hours, but the battery is draining much faster than the display lets on, and it dies with less warning than you'd expect. Don't wait for a crisis to identify what support exists — check now, while you have the capacity to research it properly. Don't treat a difficult day as evidence you can't cope generally — mental illness at work is rarely a smooth line, and a hard Tuesday doesn't undo a genuinely functional Monday. And don't try to manage a significant condition without professional input just because you're managing at work — coping at work and getting appropriate treatment aren't substitutes for each other.

Designed for minds that need to hold what matters, not carry everything at once.
Explore the Priority Pad →

Related Reading

• Building Resilience: What Actually Helps During Hard Times
• How to Hold Yourself Accountable When Willpower Isn't Enough
• Bare Minimum Mondays: The Anti-Burnout Trend Worth Stealing

When to Take It More Seriously

If symptoms are significantly affecting your ability to function at work — not just occasional bad days, but a sustained pattern of difficulty — that's worth a direct conversation with your GP about your current treatment and support plan, separate from any workplace decisions. Coping strategies support day-to-day function; they aren't a substitute for appropriate clinical care.

In the UK, you can self-refer for CBT and other evidence-based therapies via your local NHS IAPT service at nhs.uk. Your GP can also advise on your specific condition and whether your current treatment plan needs adjusting.

This article is a starting point, not a diagnosis. If you are concerned about your mental health, please speak to a professional.

Frequently Asked Questions

Do I legally have to tell my employer about a mental illness in the UK?

No, there's no general legal requirement to disclose a mental health condition to your employer. However, under the Equality Act 2010, an employer's duty to make reasonable adjustments only applies once they know, or could reasonably be expected to know, about a condition that meets the legal definition of disability — so choosing not to disclose means those specific legal protections aren't accessible, even though the choice itself is entirely yours.

What are reasonable adjustments for mental health, in practice?

They vary by individual and role, since mental health support needs differ significantly between people and change over time. Common examples include flexible start times, adjusted workload during difficult periods, a quiet space to step away to, or changes to how feedback or instructions are communicated. UK guidance (Acas) is clear that adjustments should be tailored to the specific person and situation, not applied as a generic template.

Is it normal to still struggle even with treatment and coping strategies in place?

Yes. Mental illness rarely follows a smooth, steadily-improving line, and having treatment and coping strategies in place doesn't mean difficult days stop happening — it means you have more tools to manage them when they do. A hard day isn't evidence that your treatment or strategies have failed.

What should I do if I disclose and don't get the support I expected?

Research shows a real gap between the adjustments the law provides for and what many employees who disclose actually receive, so this is unfortunately not uncommon. Practical next steps include requesting adjustments formally and in writing, involving HR directly rather than only your line manager, and seeking advice from Acas or a solicitor if the situation doesn't improve, since UK law does provide recourse even when initial informal requests don't work.