Acas: Mental Health Problems Among Top Three Reasons for Staff Absence

Why It Matters

The shift to immediate SSP and rising mental‑health‑related absences pressure employers to strengthen wellbeing strategies, directly affecting productivity and cost management.

Key Takeaways

• Mental health cited by ~33% of managers as top absence reason
• New SSP rules start 6 April 2026, payable from day one
• SSP rate: £123.25 (~$156) or 80% earnings, whichever lower
• Employers urged to train managers and offer flexible work
• Wellbeing benefits alone insufficient; tailored support drives productivity

Pulse Analysis

The latest Acas‑commissioned YouGov poll shines a spotlight on mental health as a growing driver of workplace absence. While traditional ailments like colds and flu still dominate, about 33% of managers now flag stress, anxiety and depression among the chief reasons staff call in sick. This trend coincides with a significant policy shift: statutory sick pay, which previously began on day four, will from 6 April 2026 be payable from the first day of illness at 80% of normal earnings or the flat rate of £123.25 (approximately $156), whichever is lower. Employers must therefore reassess budgeting for sick‑pay liabilities as earlier payouts could increase short‑term cash outflows.

Beyond the payroll impact, the data underscores a strategic imperative for HR leaders. Experts from Acas and benefits provider Zest argue that generic wellbeing perks are no longer enough. Effective solutions require granular insight into employee preferences, robust manager training on mental‑health conversations, and flexible work arrangements that can mitigate the need for prolonged leave. Companies that embed these practices tend to see higher morale, lower turnover, and measurable gains in productivity, turning wellbeing from a cost center into a competitive advantage.

The broader market response is likely to be swift. As the Employment Rights Act 2025 reforms take effect, firms that proactively adapt—by updating absence policies, offering accessible mediation services, and communicating support options clearly—will better manage the dual pressures of rising mental‑health‑related absences and earlier SSP payouts. In a tight labour market, such agility not only safeguards the bottom line but also positions organisations as employers of choice, attracting talent that values holistic health support. The convergence of policy change and employee wellbeing trends marks a pivotal moment for HR strategy in 2026.