Workplace Mental Health Claims in the UK: Your Rights and Options
Updated: Oct 10
Workplace mental health claims can arise when work causes or worsens stress, anxiety or depression. This guide explains your legal rights. It also covers the steps you can take to protect yourself and how to claim compensation for a work-related mental health issue in the UK.
Understanding workplace mental health issues
Mental health problems at work are now seen as a serious occupational hazard. Workplace stress, anxiety and depression affect many UK workers every year. The Health and Safety Executive (HSE) reports that work-related stress, depression and anxiety account for around half of all work-related ill health. You can read the HSE's guidance on work-related stress.
Key statistics
The HSE reported the following figures for 2019/20:
17.9 million working days were lost to work-related stress, depression or anxiety.
828,000 workers suffered from work-related stress, depression or anxiety.
These figures change each year. Check the HSE website for the latest numbers.
Common conditions
A mental health issue linked to work can take many forms. Common examples are:
Stress: a reaction to pressure that you feel cannot be managed.
Anxiety: constant worry, panic or fear that affects your day to day life.
Depression: low mood, loss of interest and tiredness that last for weeks or longer.
Post traumatic stress disorder (PTSD): a condition that can follow a frightening or distressing event at work.
Legal framework and employee rights
Under UK law, employers have a duty to protect staff from excessive pressure and to keep the work environment safe. The Health and Safety at Work etc. Act 1974 and the Management of Health and Safety at Work Regulations 1999 set this out. Employers must assess risks to health, and that includes the risk of work-related stress.
Employers also owe a duty of care at common law. This is a legal responsibility to take reasonable care of staff. A breach of this duty can lead to a personal injury claim.
Mental health and the Equality Act 2010
A mental health condition can count as a disability under the Equality Act 2010. This is the case if it has a substantial and long term effect on your ability to do normal day to day activities. See section 6 of the Equality Act 2010. If you are disabled in this sense, your employer must make reasonable adjustments. It must also not treat you unfavourably because of your condition.
Notable legal precedents
In Walker v Northumberland County Council [1995], the court held that employers can be liable for mental health injuries caused by workplace stress. This landmark case opened the door for stress-related compensation claims.
Preventive measures for employees
Recognising early warning signs
Persistent fatigue and difficulty concentrating.
Changes in sleeping patterns.
Increased irritability.
Physical symptoms, such as headaches or muscle tension.
Practical steps
Keep clear communication with your manager about your workload.
Take regular breaks and use your annual leave.
Practise stress management techniques.
Record every instance of excessive workplace pressure, with dates and details.
Causes of work-related mental health problems
Claims often arise from a few common causes:
Excessive workload: unrealistic targets or hours, with no extra support.
Bullying or harassment: see our guide on workplace mobbing compensation.
Lack of control or support: little say in how the work is done, or no help from managers.
Unclear roles and change: repeated reorganisations, or confusion about what is expected.
Traumatic events: exposure to violence, accidents or other distressing events.
Making a compensation claim
Employees can seek compensation if they can show that:
The employer knew, or should have known, about the risk to their mental health.
The employer failed to take reasonable steps to prevent harm.
The mental health condition was caused by workplace factors.
The second and third points are often the hardest. A court will ask whether harm to your health was reasonably foreseeable. It will also ask whether the employer's failure caused the illness. Medical evidence matters here. Another issue is whether you told your employer about the problem. Employers are not required to guess, but they are expected to act on warning signs.
Recent successful claims
In Hatton v Sutherland [2002], the Court of Appeal gave guidelines for stress-related injury claims. This gave a framework for later cases. The case of Barber v Somerset County Council [2004] further reinforced employers' obligations regarding employees' mental health.
Steps to file a claim
Get medical evidence. Ask your GP or specialist to record your condition and the likely cause.
Gather documents. Collect emails, rotas, reviews and any record of workplace issues.
Raise a formal grievance. Use your employer's grievance process.
Consider mediation or Acas early conciliation. Early conciliation is usually needed before an employment tribunal claim.
Speak to a specialist employment law solicitor. They can advise on the best route for your case.
Time limits
Time limits are strict, and the limit depends on the type of claim:
Employment tribunal claims: these are usually three months less one day from the act you complain about. Examples are discrimination or constructive dismissal. See the Employment Tribunal guidance.
Personal injury claims: these usually have a three-year limit. It runs from the date of injury, or from the date you knew or should have known about it. See section 14 of the Limitation Act 1980.
Take advice early. Waiting can harm your case and may mean you lose the right to claim.
Evidence you will need for a claim
Good evidence can make or break a claim. Start collecting it as early as you can. Useful evidence includes:
Medical records, including GP notes, referrals and any specialist reports.
Fit notes (sick notes) and a record of time off.
Emails or messages that show the workload, targets or hours you were given.
Records of any complaint you made, and how your employer replied.
Occupational health reports, if your employer arranged them.
Statements from colleagues who saw what happened.
A diary can also help. Write down what happened, when it happened and how it made you feel. Notes made at the time carry more weight than memories written years later.
What employers should do
Employers have duties before problems arise. They should take steps such as:
Carry out a risk assessment for work-related stress.
Set workloads that are fair and can be done in the hours given.
Offer support, such as an employee assistance programme or counselling.
Train managers to spot early signs of mental ill health.
Act quickly when an employee raises a concern or goes off sick with stress.
Make reasonable adjustments for staff with a mental health condition.
An employer that takes these steps is in a stronger position if a claim is made. An employer that ignores clear warning signs may find it hard to defend one. The HSE has Management Standards that help employers handle stress at work.
Mental health conditions and sick pay
If your mental health condition means you cannot work, you may be entitled to statutory sick pay. Your contract may offer more. You can usually be off work with a fit note from your GP. If you are off for a long time, your employer may arrange an occupational health review.
Employers must be careful about how they handle long-term absence. Dismissing someone because of their mental health condition may be disability discrimination. Take advice before you agree to any exit terms.
Common questions about workplace mental health claims
Can I claim if my employer did not know I was struggling?
It is harder. The law asks whether your employer knew, or ought to have known, that your health was at risk. If you never raised the issue and there were no visible signs, a claim may be difficult. Telling your employer in writing helps. So does telling your GP.
Can I claim if work was only one cause?
Possibly. Work does not need to be the only cause. The question is whether the employer's breach made a material contribution to the harm. A court may reduce the award if other causes played a part.
Do I need to leave my job to make a claim?
No. Many people make a claim while still employed. Others claim after they leave. The right approach depends on your situation, your health and your goals.
How long does a claim take?
It varies. Simple claims may settle in months. Contested claims can take longer, especially where medical evidence is disputed. Your solicitor can give a realistic estimate once they have seen your papers.
Will I have to go to court?
Most claims settle without a trial. Some are resolved through negotiation or mediation. A hearing is needed only if the parties cannot agree. Your solicitor will prepare you for each step.
Returning to work and constructive dismissal
Not every case ends in a claim. Many employees want a return to work with proper support. This can include a phased return, changed duties or adjusted hours. An occupational health report can help set this out.
Sometimes the situation becomes impossible, and an employee resigns. In some cases, this may amount to constructive dismissal. This is where an employer's serious breach of contract forces you to leave. Read our guides on constructive dismissal claims and on workplace bullying and constructive dismissal.
Compensation for mental health
Compensation for mental health injury varies with severity. Courts often refer to the Judicial College Guidelines, which set out brackets for psychiatric harm. The brackets are updated from time to time, so ask your solicitor for the current figures. The amount also depends on how long the condition lasts, its effect on your work and life, and the chances of recovery. You may also be able to claim for lost earnings and the cost of treatment.
How CANKO Law Firm can help
At CANKO Law Firm, we understand the sensitive nature of mental health issues and provide compassionate, professional legal support.
Our services include:
Free initial consultation.
Thorough case evaluation.
Expert legal representation.
Support throughout the claims process.
No-win, no-fee arrangements in suitable cases.
Contact CANKO Law Firm today for guidance on your workplace mental health claim. Our solicitors will help you understand your rights and seek the compensation you deserve.
