Overwork culture is silently undermining the performance of countless UK businesses. Employees working beyond their contracted hours without recognition leads to alarming results. Rising burnout, lost productivity, and a surge in employee turnover have negative impacts.

Protime carried out a national study in April 2024. This study shows how widespread the issue has become across the UK. These results demand urgent intervention from business leaders and HR professionals alike.

Numbers about overtime in UK

The cost of overwork culture in the UK

According to Protime’s survey, 54% of UK employees are clocking up to four full days of unpaid overtime each month. Cumulatively, that adds up to 19 million days of uncompensated labour across the workforce every year.

But the financial implications are only part of the problem.

The emotional toll is staggering:

  • 53% of those overworking report increased levels of stress and anxiety.
  • 41% have already experienced burnout.
  • 25% aren’t using all their paid holiday, due to mounting pressure and backlogs.

On a business level, overworked employees are significantly less engaged and productive:

  • 38% admit to being less effective at their jobs.
  • 29% struggle under unreasonable workloads.
  • 28% feel the strain is harming their relationship with their manager.

One of the most alarming facts: 1 in 5 employees plans to quit within the next six months. Unsustainable working hours are the major driver. Even more concerning, over 10% are so overworked they don’t have the time or energy to find a new job.

What’s driving this toxic culture of overwork?

The rise of a culture of overwork is no coincidence. Multiple systemic issues are contributing to this harmful trend:

1. Unrealistic workloads

Over a quarter of employees say they’re physically unable to complete their tasks during regular working hours. Deadlines are too tight, priorities aren’t aligned, and support is often lacking. This leads to employees working overtime hours, under a significant amount of pressure to complete tasks.

2. Poor workload distribution

Many teams operate without clear systems for sharing responsibilities. This leads to some employees shouldering a disproportionate burden. 25% of employees say they need better task management from leadership.

3. Managerial disconnect

1 in 5 workers say their managers are delegating unrealistic amounts of work. The disconnect between leadership expectations and frontline realities is a key factor in overworking. This leads to strain on manager-employee relationships, which can lead to added frustration and tension in the workplace.

4. Remote work risks

33% of employees say they are more likely to work unpaid overtime when working remotely. The flexibility of hybrid models has blurred boundaries and intensified the pressure to always be “online” and available.

These factors feed into a cycle of overworked employees, rising attrition, and declining output. The longer the cycle continues, the harder it is to break.

3 actions to break the overwork cycle

Organisations need to take decisive steps to reverse this trend. Here are three evidence-based actions leaders can take today:

1. Improve workload management systems

With unrealistic workload cited as the number one issue, businesses must rearrange how work is assigned to employees and managed by seniority figures. HR teams should collaborate with all department heads to:

  • Implement forecasting tools that match task allocation to employee capacity.
  • Ensure fair distribution of responsibilities.
  • Train line managers to monitor and balance workloads effectively.

Protime's workforce management solutions are built precisely to support these goals. Our software enables better task planning, visibility, and resourcing across teams. Better workload visibility not only improves team output but also supports early intervention when employees are at risk of burnout.

2. Reset cultural norms and expectations

A toxic culture of overwork often stems from implicit expectations that being constantly available equals commitment. To protest against these societal norms:

  • Leaders must promote healthy boundaries around time off and work hours.
  • HR should establish and promote clear guidelines that encourage rest and discourage excessive overtime.
  • Internal communications must shift the narrative from “more hours equals more value” to “smart, balanced work delivers results.”

Creating a culture of sustainable performance begins with empowering employees to disconnect from work without feeling guilty. Organisations should celebrate efficiency and collaboration, not exhaustion, as measures of success.

3. Rethink hybrid and remote work models

Remote and hybrid working models have blurred the lines between work and personal life, often leading to increased workloads and longer hours.
To address this:

  • Equip remote managers with tools and training to monitor workload and wellbeing.
  • Schedule regular check-ins focused not just on deliverables, but also on capacity.
  • Use digital systems to track time more accurately and spot signs of overworking early.

When handled strategically, hybrid working offers powerful benefits—including flexibility, autonomy, and enhanced focus. But without the right guardrails, it can become a silent driver of burnout.

Why Addressing Overwork Culture Is Urgent

Allowing a toxic overwork culture to persist isn’t just a people problem; it’s a strategic risk.

Companies that fail to act face negative outcomes:

  • Higher turnover and recruitment costs
  • Lower productivity and employee engagement
  • Damaged relationships between teams and managers
  • A diminished employer brand

On the other hand, businesses that invest in smarter workforce management can unlock a competitive edge. They benefit from a healthier, more stable, and more productive team, one that can sustain success over the long term.

Start Building a Healthier Culture Today

Fixing a broken workplace culture won’t happen immediately. But, every positive change begins with action. Overwork culture doesn’t just affect employees; it reduces productivity, morale, and your organisation’s ability to retain employees. You can take meaningful steps for your business today. Improving workload planning, challenging outdated assumptions about performance, and providing structure and support for hybrid teams, long-term success can be achieved.

A healthier work culture leads to happier teams, lower turnover, stronger results, and a reputation as an employer of choice. Businesses that commit to sustainable working practices now will be better equipped to thrive in a competitive, fast-evolving labour market.

Want to reduce overwork, retain talent, and create a healthier workplace? Contact Protime today to discover how our HRM solutions can help you build a balanced, productive, and high-performing business culture.

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