World Day for Health and Safety at Work 2026

Every year on 28 April, the International Labour Organization (ILO) marks World Day for Health and Safety at Work, an international awareness campaign encouraging employers to prevent workplace accidents and occupational ill health [1]. For businesses, the day provides a practical prompt to review existing health and safety practices and identify areas for improvement.

In Great Britain, the most recent data highlights the scale of the challenge. An estimated 1.9 million workers suffered from work-related ill health in 2024/25, while 680,000 sustained a non-fatal injury [2]. Together, these accounted for 40.1 million lost working days, at an estimated cost of £22.9 billion annually [2]. Stress, depression and anxiety remain the single largest category of work-related ill health, affecting 964,000 workers [3].

World Day offers an opportunity for employers of all sizes to assess risks, act on them, and create conditions where people can work safely and sustainably.

Summary

• World Day for Health and Safety at Work takes place on 28 April each year, coordinated by the ILO to promote the prevention of workplace accidents and ill health [1].
• The 2026 theme focuses on healthy psychosocial working environments, highlighting how workload, communication, support, and job design affect both wellbeing and safety outcomes [4].
• In Great Britain, 1.9 million workers reported work-related ill health in 2024/25, with stress, depression and anxiety accounting for 964,000 of those cases [2][3].
• Work-related ill health and injuries cost an estimated £22.9 billion annually [2].
• Employers can use the day to review risk assessments, hold safety conversations with teams, and identify practical improvements that don't require large budgets.
• The HSE's Working Minds campaign and free stress risk assessment tools provide a structured starting point for businesses of all sizes [5].

What is World Day for Health and Safety at Work?

The ILO began observing World Day for Health and Safety at Work in 2003 as part of its global strategy on occupational safety and health [1]. Each year carries a different theme designed to draw attention to emerging or persistent workplace risks. Previous themes have covered topics including digitalisation, climate change, and the role of social dialogue in building safety cultures.

The day serves a dual purpose. Internationally, it raises the political profile of occupational safety and health. At an organisational level, it provides a reason for employers to review their practices, engage staff in safety conversations, and address risks that may have gone unexamined.

It's worth noting that 28 April also coincides with Workers' Memorial Day, which commemorates those who have been injured or suffered illness through their work. For employers, the date carries both a reflective and a forward-looking purpose: acknowledging the human cost of unsafe or unhealthy work, and committing to preventing it.

The 2026 theme: Healthy psychosocial working environments

This year, the ILO's theme centres on the psychosocial working environment [4]. This refers to the way work is designed, organised, and managed, and how those factors shape day-to-day working conditions.

Psychosocial risks include excessive workload, unrealistic deadlines, lack of autonomy, poor management support, unclear roles, and badly communicated change. When these factors are left unmanaged, they become workplace hazards in much the same way that a trailing cable or a missing guardrail would be. They increase the likelihood of errors, accidents, and long-term ill health.

The HSE identifies six areas of work design that can affect stress levels:

• demands
• control
• support
• relationships
• role
• change.

Demands become a risk when workloads exceed what someone can reasonably deliver within their contracted hours, when deadlines are routinely unrealistic, or when the emotional demands of a role go unacknowledged. Control matters because employees who have little say over how they do their work, when they take breaks, or how their day is structured experience measurably higher stress levels. Support from managers and colleagues acts as a buffer; without it, even manageable workloads become overwhelming.

Relationships at work affect safety directly. Bullying, harassment, and interpersonal conflict don't just cause distress. They create distraction, reduce communication, and erode the trust that safe working depends on. Role clarity is equally important: employees who aren't sure what's expected of them, or whose responsibilities conflict, make more errors. And poorly communicated change, whether organisational restructures, new systems, or shifts in leadership, creates uncertainty that compounds existing pressures.

The 2026 theme is a recognition that workplace safety has evolved beyond hard hats and hazard signs. The conditions that cause psychological harm need to be assessed and managed with the same rigour as physical risks.

Where things stand in the UK

The Health and Safety Executive's annual statistics for 2024/25 provide a useful benchmark for employers reviewing their own performance [2].

An estimated 1.9 million workers suffered from work-related ill health during the year. Of those, 964,000 reported stress, depression or anxiety caused or made worse by work, making it the most common form of occupational ill health by a significant margin [3]. The rate of self-reported work-related mental ill health has been climbing since before the pandemic and has accelerated in the years since [3]. Female workers report rates around 25% higher than male colleagues [3].

Non-fatal injuries affected an estimated 680,000 workers, with slips, trips and falls remaining the most common cause across all sectors [2]. The accommodation and food services industry recorded the highest injury rate [2].

The combined cost of workplace injuries and new cases of work-related ill health stands at an estimated £22.9 billion annually [2]. Poor mental wellbeing alone costs UK employers between £42 billion and £45 billion a year through presenteeism, sickness absence, and staff turnover [6]. Evidence from Deloitte suggests employers see a return of approximately £5.30 for every £1 invested in mental health support [7].

These figures illustrate why World Day matters as more than a calendar event. The scale of work-related ill health represents a significant operational cost for businesses, and much of it is preventable through better job design, clearer communication, and more consistent management practices.

How to mark the day in your workplace

World Day for Health and Safety at Work doesn't require a large-scale event. For most businesses, particularly smaller ones, the most valuable thing you can do is use the date as a trigger for practical action.

• Review your risk assessments. Check whether your existing assessments cover psychosocial risks alongside physical ones. If your risk assessment addresses fire exits and manual handling but says nothing about workload, communication, or management support, it's incomplete. The HSE provides free templates and example assessments for work-related stress [5].
• Hold a team conversation. Toolbox talks, team meetings, or structured one-to-ones give employees an opportunity to raise concerns about working conditions. Keep it practical: What's working well? What's causing unnecessary pressure? What one thing could we change?
• Check your environment. Walk through your workplace with fresh eyes. Are workstations set up properly? Is lighting adequate? Are quiet spaces available for focused work? Are emergency procedures clearly displayed and understood? Small environmental improvements often cost very little.
• Signpost existing resources. Many employees don't know what support is already available to them. Use the day to highlight accessibility features in existing software, your Employee Assistance Programme if you have one, flexible working options, and any relevant training opportunities.
• Recognise good practice. If teams or individuals have contributed to a safer or healthier working environment, acknowledge it. Recognition reinforces the behaviours you want to see and signals that health and safety is valued, not just required.

Making it count

World Day for Health and Safety at Work is one day. The conditions that lead to 22.1 million lost working days exist across all the others. The value of 28 April lies not in marking a date but in using it as a catalyst - to have a conversation you've been putting off, to review a process that hasn't been updated since before the pandemic, or to ask your team a question you haven't asked before.

For smaller businesses especially, the gap between awareness and action can feel wide. But the evidence suggests that the most effective interventions are rarely the most expensive. Clearer communication, visible leadership, manageable workloads, and a culture where raising concerns is normal rather than exceptional - these cost very little to implement and can materially improve both employee wellbeing and business performance.

The question isn't whether your business can afford to invest in psychosocial safety. Given the costs of inaction, the more pressing question is whether it can afford not to.

This article is intended for informational purposes only and does not constitute legal advice. The information is accurate at the time of writing but may be subject to change. For advice specific to your situation, please consult a qualified professional.

[1] United Nations, World Day for Safety and Health at Work.

[2] HSE, Key figures for Great Britain 2024 to 2025, November 2025.

[3] HSE, Work-related stress, depression or anxiety statistics in Great Britain, 2025, November 2025.

[4] ILO, World Day for Safety and Health at Work 2026: Healthy psychosocial working environments.

[5] HSE, Working Minds campaign and stress risk assessment guidance.

[6] Mental Health Foundation, Mental health at work: statistics.

[7] Deloitte, Mental health and employers: refreshing the case for investment, 2020.