More than half of UK workers are now working through illness more frequently than in previous years, as an “always-on” culture creates a growing sense of guilt around taking sick leave. New data indicates that while official absence rates appear stable, a hidden crisis of “presenteeism” is costing the UK economy billions of pounds in lost productivity.
According to research from Share Talk and Censuswide, 51.4% of employees report working through illness more than they used to. Furthermore, the 2026 Always-On Workforce Report found that a staggering 91% of UK workers admitted to working while they were technically off sick.
This trend persists despite the Office for National Statistics reporting a stable sickness absence rate of 2.0% for 2025. Experts warn that these official figures may be masking the true level of illness in the workforce, as many employees now “log on from bed” rather than taking a formal day off.
The cost of ‘working while unwell’
The habit of working while sick is not just a personal health risk; it is an economic issue. The cost of presenteeism to the UK economy is now estimated to be as high as £138 billion per year when factoring in the resulting drop in productivity. When employees do not take the time to recover fully, they often perform at a lower capacity and risk prolonging their illness, leading to longer-term burnout.
Data from the Chartered Institute of Personnel and Development (CIPD) shows that the average number of absence days per UK employee has risen to 9.4 days per year. This suggests that when workers finally do take time off, they are often more unwell than in previous years.
The pressure is particularly acute for younger workers. Approximately 39% of adults aged 18 to 24 have reported taking time off due to poor mental health caused by workplace stress. This demographic often feels the highest levels of guilt and pressure to remain visible to employers, even when struggling with their health.
Local impact in frontline sectors
While the trend is nationwide, it has significant implications for areas with high concentrations of frontline workers.
In these industries, Statutory Sick Pay (SSP) remains a significant factor. Workers in sectors with lower pay or less comprehensive sick pay schemes are often more likely to work through illness because they cannot afford the financial hit of a reduced pay packet.
The shift to ‘digital presenteeism’
The rise of remote and hybrid working has removed the traditional physical barrier to taking a sick day. “Digital presenteeism”—the act of responding to emails or attending virtual meetings while unwell—is increasingly common. Health experts advise that this can delay recovery times and eventually lead to a total breakdown in well-being.
To combat this, some organisations are being urged to move toward “output-based” performance tracking rather than monitoring hours logged. This approach focuses on the work completed over a period rather than requiring employees to be at their desks or online during specific hours, which may help reduce the guilt associated with taking a necessary rest day.
For those currently feeling the pressure to work while sick, official advice remains that early rest is the most effective way to ensure a quick return to full productivity and prevent minor ailments from becoming long-term health issues.