Work-related stress is not a weakness, not a medical diagnosis, and there is no single law with “stress” in its name — yet employers have a clear legal duty to assess and manage it, exactly like any other workplace hazard. It is one of the biggest causes of work-related ill health in the UK, and most of it is preventable by managing a handful of well-understood pressures.
This guide explains what work-related stress is, the employer’s legal duty, the HSE Management Standards that define what to manage, and what good practice looks like.
What work-related stress is
The Health and Safety Executive (HSE) defines work-related stress as “the adverse reaction people have to excessive pressures or other types of demand placed on them at work.” The key word is adverse. A degree of pressure is normal and can be motivating — stress is what happens when pressure becomes excessive or unmanaged and the person can no longer cope.
That distinction matters: the goal is not to remove all pressure, but to stop it tipping into harmful stress.
Why it matters
Work-related stress, depression and anxiety account for a large share of all work-related ill health and working days lost in Britain each year. Beyond the human cost, it drives sickness absence, staff turnover, lost productivity and mistakes. It is a health and safety issue, not just an HR one — and left unmanaged it can contribute to serious physical and mental illness.
The employer’s legal duty
There is no standalone “stress law”, but the duty is real and comes from existing health and safety law:
- The Health and Safety at Work etc. Act 1974 requires employers to protect the health — including mental health — of their workers, so far as is reasonably practicable.
- The Management of Health and Safety at Work Regulations 1999 require a risk assessment, and that includes the risk of work-related stress.
In other words, employers are legally required to assess the risk of stress and act on it — the same duty that applies to any hazard.
The HSE Management Standards
To make that duty practical, the HSE created the Management Standards — six areas that, if not managed well, are the main causes of work-related stress. Assessing and managing these six is how an employer meets the duty:
- Demands — workload, work patterns and the work environment.
- Control — how much say a person has over how they do their work.
- Support — the encouragement and resources provided by the organisation and managers.
- Relationships — promoting positive working and dealing with conflict and unacceptable behaviour.
- Role — whether people understand their role and avoid conflicting demands.
- Change — how organisational change is managed and communicated.
Spotting the signs
Stress shows up before it becomes a crisis. Managers and colleagues should be alert to changes such as:
- Changes in mood or behaviour, withdrawal, or increased conflict
- Rising sickness absence or presenteeism (being at work but unwell)
- Drops in performance, concentration or decision-making
- Physical signs the person mentions — tiredness, headaches, sleep problems
Noticing early and opening a supportive conversation is often the most effective intervention there is.
What employers and managers should do
- Carry out a stress risk assessment using the six Management Standards, involving staff honestly.
- Act on what it finds — adjust workloads, clarify roles, improve support and communication.
- Train managers to spot the signs and hold supportive conversations.
- Signpost help — occupational health, employee assistance, and encouraging people to seek support early. Mental health first aid can help here.
Further reading
Frequently asked questions
What is work-related stress?
The Health and Safety Executive defines work-related stress as the adverse reaction people have to excessive pressures or other demands placed on them at work. A degree of pressure is normal and can be motivating; stress is what happens when pressure becomes excessive or unmanaged and the person can no longer cope. The aim is not to remove all pressure but to stop it tipping into harmful stress.
Do employers have a legal duty to manage work-related stress?
Yes. There is no standalone stress law, but the Health and Safety at Work etc. Act 1974 requires employers to protect workers’ health, including mental health, so far as is reasonably practicable, and the Management of Health and Safety at Work Regulations 1999 require a risk assessment that includes the risk of stress. Employers are legally required to assess the risk of work-related stress and act on it.
What are the HSE Management Standards for stress?
The HSE Management Standards are six areas that cause work-related stress if not managed well: Demands (workload and environment), Control (how much say people have over their work), Support (from the organisation and managers), Relationships (positive working and handling conflict), Role (understanding roles and avoiding conflict), and Change (how organisational change is managed). Assessing and managing these six is how an employer meets its duty.
What are the signs of work-related stress?
Signs include changes in mood or behaviour, withdrawal or increased conflict; rising sickness absence or presenteeism; drops in performance, concentration and decision-making; and physical symptoms the person mentions such as tiredness, headaches or sleep problems. Noticing changes early and opening a supportive conversation is often the most effective intervention.
What should employers do about work-related stress?
Carry out a stress risk assessment using the six Management Standards and involving staff honestly; act on what it finds by adjusting workloads, clarifying roles and improving support and communication; train managers to spot the signs and hold supportive conversations; and signpost help such as occupational health and employee assistance, encouraging people to seek support early.
Stress awareness training
Our Stress Awareness course covers what work-related stress is, the HSE Management Standards, how to recognise the signs, and how to manage and reduce it.
Related: What is a risk assessment? · Mental health first aid · Is lone working legal?
£9 per course. CPD accredited, 100 % online, verifiable e-certificate on completion. Pay for 2, get 3 — any 3 courses for £18.
Please note: this is a CPD-accredited awareness course and general information, not medical advice or a substitute for occupational-health or clinical support for an individual. Anyone struggling with their mental health should seek help from a GP or a qualified professional. It is not an Ofqual-regulated qualification.