Mental Health & Employment Rights UK (2025 Guide)

Overview

Mental health in the employment context sits at the crossroads of two main pieces of legislation. The Health and Safety at Work etc. Act 1974 places a general duty on employers to protect the health, safety and welfare of staff, which includes psychological wellbeing and not just physical risk.

The Equality Act 2010 goes further by treating mental health conditions as a potential disability where they have a substantial and long-term effect on someone's ability to carry out normal day-to-day activities. That matters because disabled workers are entitled to protection from discrimination, harassment and victimisation, and employers owe them a positive duty to make reasonable adjustments.

Mental health rights in the workplace are therefore a mix of safety obligations (preventing harm in the first place) and equality obligations (treating people fairly when a condition arises). Understanding which framework applies to your situation often shapes the practical options open to you, whether that is a workplace conversation, a formal grievance, or a tribunal claim.

Key steps

1. Recognise what you are dealing with. Before taking any formal step, try to describe the situation in concrete terms: what is happening at work, how it affects you, and how long it has been going on. Written notes, dates, and examples of incidents or decisions will be far more useful later than a general sense that something is wrong.
2. Speak to someone at work if you can. A conversation with your line manager, HR, or an occupational health team is often the quickest route to a practical outcome. You do not have to disclose a diagnosis, but you may need to share enough information for the employer to understand the impact and consider adjustments such as changed hours, workload, or working location.
3. Request reasonable adjustments in writing. If informal conversations do not resolve matters, put your request in writing and explain what you are asking for and why. A written request creates a clear record and triggers the employer's legal duty to consider adjustments seriously, rather than dismiss them out of hand.
4. Use the internal grievance procedure. If you feel you have been treated unfairly, discriminated against, or ignored, your employer should have a grievance process in their handbook or contract. Following it in order matters, because tribunals expect employees to give the employer a fair chance to put things right before escalating.
5. Get external help before any deadline bites. Employment tribunal claims, including discrimination claims, generally have a three month less one day time limit from the act complained of. Contacting Acas for early conciliation is a required step before issuing a claim, and charities such as Mind and Citizens Advice can help you think through next moves.