On paper this is the healthiest-looking part of most workforce dashboards: attendance is excellent, hours logged look strong and output is flowing. Presenteeism describes the gap between showing up and performing, and UK evidence suggests that the gap has become far larger and far more expensive than sickness absence itself.
This article looks at why presenteeism has overtaken absence as the bigger cost, tells the story of a team that looked fine on paper, and sets out how to diagnose and close the gap.
The team with zero sick days
A 90-person marketing agency in London had one client account team that hit its targets every quarter for two years running after the shift to hybrid working. Sickness absence on the team was close to zero, and leadership held it up internally as proof of a resilient, high-performing culture.
That view didn’t survive a near miss. After a client-facing error nearly cost the agency its largest account, the head of operations ran an anonymous pulse survey on the team for the first time. Almost two-thirds of the account team reported having worked through symptoms of exhaustion or illness in the past month rather than take a day off, and several had been logging in at 9pm and through weekends for months. The ‘zero absence’ statistic leadership had been proud of wasn’t evidence of resilience. It was evidence that people had stopped feeling able to switch off. And the cost had been showing up everywhere except the absence spreadsheet: in error rates, in decision quality and in two resignations that followed within the quarter.
For every day lost to sickness absence, UK employees are now losing roughly 8 days to presenteeism: working, but not really working.
The cost you can’t see on a timesheet
CIPD’s 2025 Health and Wellbeing at Work survey found 87% of UK employers observed presenteeism in their organisation in the past 12 months. And 35% say it has specifically increased because of home and hybrid working, where being unwell is far easier to hide.
The IPPR’s Commission on Health and Prosperity puts a figure on the scale of it: the average UK employee lost 44 days of productivity in 2023 to working through sickness, up from 35 days in 2018 – and this single shift accounts for £25 billion of the total £103 billion annual cost of workplace sickness since 2018.
Using a different methodology, Vitality’s Britain’s Healthiest Workplace research separately estimates UK employees lose the equivalent of around 25 working days a year to presenteeism. The two estimates aren’t directly comparable, but they point in the same direction: presenteeism now costs UK businesses several times more lost productivity than absence does.
And Deloitte’s mental health and employers research puts the total cost of poor mental health to UK employers at roughly £51 billion a year, of which presenteeism is the single largest component at around £24 billion. That’s more than absence and staff turnover combined. The same research is the best evidence for the size of the opportunity on the other side of the ledger. Employers see an average return of £4.70 for every £1 invested in mental health and well-being support, based on a review of 26 studies published since 2011.
Why it happens
Presenteeism is what chronic stress looks like when someone refuses to stop. Sustained pressure narrows the brain’s capacity for the kind of thinking most roles need: focus, judgement, and creative problem solving.
Research on sleep-deprived performance shows that people running on chronically insufficient sleep, even six hours a night, perform at a level equivalent to legal intoxication. They produce measurably fewer creative solutions and are rated less effective by colleagues, all while still turning up on time.
The person isn’t missing. Their cognitive capacity is. And because nothing shows up on an HR system to flag it, presenteeism can run for months or years before it surfaces as an error, a missed deadline or a resignation.
How to diagnose it
Presenteeism doesn’t show up in an absence report, so it needs different signals:
- Run a genuinely anonymous pulse survey asking directly whether people have worked through illness or exhaustion in the past month.
- Watch for ‘leavism’: work bleeding into evenings, weekends and annual leave, visible in calendar and login patterns, not absence data.
- Compare output quality (error rates, client escalations, review scores) against logged hours rather than assuming the two move together.
- Ask managers directly which of their highest-attendance people they’d now rate as operating below their normal standard.
- Treat a team with unusually low absence as a signal to investigate, not automatically a badge of health.
Signs your ‘healthy’ team isn’t
- Zero absence for months alongside rising errors or client issues
- Emails and logins outside work hours becoming the norm, not the exception
- People describing themselves as ‘fine’ in flat, minimal language
- A team that hasn’t taken its full annual leave allowance
How to solve it
Because presenteeism is a capacity problem, not an attendance problem, the fix is about restoring the conditions the brain needs to function well, not adding another well-being perk nobody has time to use.
Sleep is the highest-leverage tool most organisations aren’t using: consistent sleep timing, protected from late-night working, does more for next-day cognitive performance than almost any other single change.
Alongside that, brief structured recovery – even two minutes of focused breathing or a short walk between meetings – helps rebalance the neurochemistry that sustained pressure depletes.
These are the same habits the Resilience Code builds into a 28-day programme, because presenteeism doesn’t get resolved through willpower. It resolves when recovery becomes a structured daily habit.
Making ‘present’ mean something again
The goal isn’t to get people to take more time off. It’s to make sure that when they are at their desk, they’re actually there, cognitively as well as physically. That starts with measuring the right thing.
To find out how the Resilience Code helps you diagnose and close your presenteeism gap, speak with the Limitless team.
References
- CIPD (2025). Health and Wellbeing at Work Report, supported by Simplyhealth.
- IPPR (2024). Commission on Health and Prosperity: the hidden cost of workplace sickness.
- Vitality (2025). Britain’s Healthiest Workplace research programme.
- Deloitte UK (2025). Mental health and employers: the case for investment.
- UC Berkeley Sleep Research (Walker et al.). Why We Sleep: underlying research programme.
