4-Day Work Week in the UK 2026

A 4 day work week is a working arrangement where employees complete their weekly workload across four days rather than the traditional five. In many cases, employees receive the same salary while working fewer hours.

The goal is not simply to reduce time spent at work. Instead, organisations aim to improve efficiency, increase employee engagement, and create healthier work–life balance.

Different models exist, which means the 4 day work week hours can vary depending on how the arrangement is structured. Some companies reduce total weekly hours, while others compress the same number of hours into fewer working days.

For HR leaders and managers, the key question is whether the approach improves both productivity and employee wellbeing without negatively affecting service delivery.

There is no one-size-fits-all approach to the 4-day work week. As businesses across Europe adapt to changing workforce expectations, many are developing their own version of the four-day model, tailored to their industry, team dynamics, and operational goals.

Some organisations focus on reducing total working hours, while others compress the traditional five-day workload into fewer, longer days. The flexibility of the model is what makes it so appealing. Whether the aim is to boost productivity, improve employee wellbeing, or remain competitive in talent attraction, companies are finding creative ways to implement shorter working weeks.

Several widely adopted formats have emerged, each with its own advantages and challenges:

Reduced hours week: Employees work fewer total hours, typically 32 instead of 40, across four days.

Compressed week: Employees work the same total hours, often 40, but across four longer working days.

100-80-100 model: Employees receive 100% of their salary for working 80% of the time while maintaining 100% productivity.

Other flexible variations include:

• Staggered schedules to ensure business coverage throughout the week
• Half-day Fridays, where working hours are shortened rather than eliminating the day entirely
• Fortnight models, where employees work a four-day week every other week

These variations allow organisations to customise their approach based on operational requirements.

The number of hours in a 4-day work week depends on the model used. In reduced-hours models, employees typically work around 32 hours, usually eight hours per day across four days. Compressed working weeks, however, involve four ten-hour days in order to maintain a 40-hour total.

The 100-80-100 model is becoming increasingly common in Europe. In this structure, employees work fewer hours, often between 32 and 36 hours per week, without any reduction in salary. Productivity is monitored to ensure output and quality remain consistent. Employers gain greater flexibility while employees benefit from additional personal time.

Many EU countries are experimenting with or introducing versions of the 4-day work week. Several national governments and private organisations are running pilot schemes to evaluate its impact.

Austria

Austria allows flexibility in working week structures, particularly in sectors such as technology and consulting. Both private organisations and public sector employers have tested shorter working weeks.

Belgium

Belgium introduced legislation allowing employees to compress full-time hours into four working days. This offers flexibility without reducing the total number of hours worked.

Denmark

The Denmark 4-day work week trend has grown steadily. Although not mandated nationally, many Danish companies offer shorter working weeks to promote wellbeing and innovation.

France

The France 4-day work week is currently being trialled in sectors such as education and local government. France’s strong labour protections make it an environment where experimentation with working models is more common.

Germany

The Germany 4-day work week has received strong support from trade unions. The IG Metall union led pilot programmes within manufacturing companies, showing promising results for productivity and employee satisfaction.

Ireland

Ireland has launched national trials supported by Four Day Week Global. The Ireland 4-day work week initiative has been tested across several industries, particularly in knowledge-based roles.

Portugal

The Portugal 4-day work week pilot launched with government backing in 2023. The country continues to evaluate the economic and workforce impact of shorter working weeks.

Spain

Spain has supported trials of the 4-day work week within small and medium-sized businesses, with a focus on productivity improvements and sustainability.

Sweden

The Sweden 4-day work week has long been explored by progressive employers. Organisations such as Sandqvist Bags have implemented shorter working weeks while maintaining productivity.

Poland 

From July 2025, Poland continues to pilot a 4-day work week in an effort to reduce burnout and offer a healthy work/lifestyle balance.

Other countries, including the Netherlands and Finland, are also experimenting with shorter working week models.

Key Research Findings

According to research from 4dayweek.com, most organisations that trialled shorter working weeks reported:
Increased employee satisfaction and focus

• Equal or higher productivity
• Reduced absenteeism and lower staff turnover
• However, research also highlights that success depends heavily on planning, communication, and realistic performance expectations.

Sandqvist Bags (Sweden): The Swedish company introduced a four-day working week and reported improved employee wellbeing with no reduction in productivity.

CIB Group (Germany): Employees moved to a four-day schedule while maintaining output levels. The organisation also reported improved employee morale.

Perpetual Guardian (New Zealand): One of the earliest adopters of the four-day week, the company saw higher engagement, improved focus, and stronger work quality.

Productivity and Performance

Many organisations report productivity improvements after introducing shorter working weeks. With fewer working hours available, teams often prioritise tasks more effectively and reduce unnecessary meetings.

Employee Wellbeing

A four-day work week provides employees with more personal time. Additional rest and flexibility can improve mental health and reduce stress.

Economic Considerations

Research suggests that productivity per hour often increases under a four-day model. This can offset the reduction in working hours and maintain overall economic output.

Legal Frameworks

Governments across Europe are beginning to explore the legal implications of shorter working weeks. Pilot programmes and policy discussions are helping to shape future labour legislation.

Sector-Specific Approaches

Knowledge-based industries such as technology, consulting, and finance have adopted four-day models more quickly. In contrast, sectors requiring continuous coverage, including healthcare, manufacturing, and retail, face more complex challenges.
 

As organisations respond to digital transformation and changing workforce expectations, shorter working weeks are increasingly viewed as a strategic workforce model.

Governments, trade unions, and employers are exploring how flexibility, productivity, and employee wellbeing can work together.

Trends and Predictions for 2026 and Beyond

2026 could mark an important stage in the growth of the 4 day work week. Governments across Europe and the UK are continuing to explore pilot programmes, while more organisations are testing flexible working models to improve productivity and employee wellbeing. 

As research and real-world trials expand, the UK 4 day work week debate is likely to focus on practical implementation, including suitable 4 day work week hours, sector differences, and whether the model can deliver long-term benefits for both employees and employers.

Impact on Work–Life Balance and Productivity

When implemented effectively, a 4-day work week can improve both employee wellbeing and productivity. Employees gain more time to rest and manage personal responsibilities, while businesses often benefit from higher focus and engagement during working hours.

The result is a healthier workforce and a more resilient organisation.

Adopting a 4-day work week requires careful planning and reliable workforce management systems.

Protime’s HR software helps organisations manage time tracking, workforce planning, and activity monitoring. These tools provide the visibility needed to manage flexible working models effectively.

Whether your organisation is trialling compressed weeks, reduced hours, or hybrid schedules, Protime helps ensure teams remain productive, compliant, and well coordinated.