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What Are the Proven Pros and Cons of a Four-Day Work Week?

12/04/2025

Adopting a four-day work week can significantly boost employee morale and productivity but may also lead to longer, more fatiguing workdays. This alternative work schedule, where employees work four days instead of five, often with a three-day weekend, is gaining traction. Based on our assessment experience, its success hinges on implementation, balancing clear advantages like improved work-life balance against potential drawbacks such as compressed hours.

What Are the Key Benefits of a Four-Day Work Week?

The primary advantages for employees and employers often center on well-being and efficiency. A key benefit is enhanced employee motivation. The prospect of a three-day weekend can make the four-day work period feel more manageable, reducing burnout. For employers, this can translate into higher productivity during active hours, as seen in a landmark UK trial where companies reported a 22% rise in productivity. Additionally, both parties benefit from lower operational costs. With the workplace closed an extra day, utility and commuting expenses decrease. This structure also offers employees greater flexibility to manage personal commitments, from childcare to professional development.

BenefitImpact on EmployeeImpact on Employer
Increased MotivationHigher job satisfaction, reduced burnoutLower turnover, improved talent retention rate
Reduced CostsLower commuting expenses (e.g., fuel, public transport)Decreased overheads (e.g., electricity, office supplies)
Improved Work-Life BalanceMore time for family, hobbies, and restEnhanced employer branding, attracting top talent

What Are the Potential Drawbacks to Consider?

Despite the appeal, a compressed schedule presents challenges. The most significant is longer workdays. To maintain a 40-hour week, daily shifts often extend to 10 hours, which can increase fatigue and decrease overall output. There is also the risk of decreased total output; even if hourly productivity rises, fewer total hours worked can lead to a net drop in deliverables. Furthermore, pay and benefits may be affected. If an employee moves from a five-day to a four-day schedule without a change in daily hours, their annual salary could be reduced pro-rata. Paid leave entitlement is typically calculated based on workdays, so moving to four days might mean fewer annual vacation days.

How Can Organizations Implement a Four-Day Week Successfully?

A successful transition requires careful planning. Companies should consider a phased implementation, perhaps starting with a departmental pilot program. Clear communication about the new schedule—whether it's a true 32-hour week with maintained pay or a compressed 40-hour week—is critical to manage expectations. It's also vital to assess workload distribution. Managers must ensure that critical tasks are not neglected and that customer service levels are maintained on the off-day, potentially through staggered schedules among staff. Based on our assessment experience, the goal is to structure the workweek for maximum efficiency without compromising employee well-being or business outcomes.

To evaluate if a four-day week is right for your organization or career, pilot the model, calculate the true impact on salary and benefits, and prioritize workload management to prevent employee burnout.

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