By Sophie Harvey

Why managing long-term sickness absence matters more than ever

Long-term sickness absence can be one of the most sensitive and complex issues employers face. Beyond the immediate operational challenges, it also carries significant legal and employee relations risks if not handled correctly.

There is no strict legal definition of long-term sickness absence, but many organisations treat an absence of four weeks or more as “long-term” for management purposes.

Handled well, employers can support employees back to work and maintain engagement whilst off work. Handled poorly, it can lead to extended absence, disputes, absence-related stress (for both employee and employer), and even claims such as unfair dismissal and/or discrimination.

The good news? With a structured and supportive approach, long-term absence can be managed fairly, legally and with positive outcomes for both the business and the employee.

Why getting it right is so important

Managing long-term sickness absence correctly is not just about compliance, it’s about balance. Employers need to support employee wellbeing whilst ensuring business continuity and fairness across the wider team.

Striking this balance requires a careful, case-by-case approach, showing empathy and flexibility, whilst also maintaining clear processes and expectations.

A thoughtful approach can help to:

• Improve employee retention
• Improve long-term absence outcomes and returns
• Maintain team morale and productivity
• Demonstrate a strong and supportive workplace culture
• Reduce legal risk

How you handle long-term sickness absence says a lot about your organisation’s values.

Below are some key HR best practices to implement when dealing with long-term sickness absence.

Maintain regular and supportive contact

One of the most important principles is staying in touch, but getting the balance right is key.

Employers should:

• Agree a suitable level of contact with the employee
• Keep communication supportive, not pressurising
• Use check-ins to understand progress and any support needed

Staying connected helps prevent employees from feeling isolated, while also enabling better business planning.

Follow a clear and consistent absence management process

Follow organisation’s policies and procedures, and keep employees notified of their obligations too. Once absence becomes long-term, employers should move beyond day-to-day absence handling and adopt a structured approach.

This may include:

• Reviewing medical evidence (e.g. fit notes)
• Holding formal absence review meetings
• Clarifying sick pay entitlements
• Setting expectations around next steps

Consistency is key and applying policies fairly reduces the risk of disputes and ensures compliance.

Seek medical advice where appropriate

Understanding the employee’s condition and likely return-to-work timeline is essential.

Employers may consider:

• Occupational health referrals
• Further medical evidence (with employee consent)

This helps to make informed decisions and ensures any actions taken are evidence-based.

Consider reasonable adjustments

If an employee’s condition may meet the definition of a disability under the Equality Act 2010, employers have a legal duty to consider reasonable adjustments.

Examples may include:

• Adjusted working hours
• Modified duties
• Flexible working arrangements
• Additional support or equipment

Failing to consider adjustments can lead to discrimination risks, so this step is critical. It can also reduce the speed or success of an employee’s return.

Plan for a supported return to work

Where a return is possible, a structured plan can make a significant difference.

Options to consider include:

• Phased returns (gradually increasing hours)
• Temporary adjustments to duties (some may need to be long-term)
• Regular review meetings

A return-to-work discussion is also an opportunity to ensure the employee feels supported and confident transitioning back.

Handle capability and dismissal situations carefully

In some cases, an employee may not be able to return to work.

If this becomes a possibility, employers must ensure they:

• Fully understand the medical position
• Have explored all reasonable adjustments and alternatives
• Follow a fair and transparent process
• Allow the employee to respond to medical evidence

Dismissal on capability grounds can be fair, but only where a thorough and reasonable process has been followed.  

Common pitfalls to avoid

When managing long-term sickness absence, common mistakes include:

• Lack of communication with the employee
• Rushing into formal action too quickly
• Failing to consider reasonable adjustments
• Applying policies inconsistently
• Not documenting decisions and conversations

Avoiding these pitfalls can significantly reduce both legal risk and employee relations issues.

Creating a culture of support

Beyond processes and policies, workplace culture plays a key role.

Creating an environment where employees feel comfortable discussing health concerns can:

• Encourage earlier intervention
• Reduce long-term absence
• Improve overall wellbeing

As highlighted by guidance, a supportive workplace culture and early intervention can help prevent short-term absence becoming long-term absence in the first place (NICE Guidance).

Final thoughts

Long-term sickness absence is rarely straightforward, but with the right approach, it can be managed effectively and compassionately.

Employers who focus on clear communication, consistency and genuine support are far more likely to achieve positive outcomes for both the individual and the organisation.

If you’d like support reviewing your sickness absence processes or managing a specific case, our team is here to help (contact us).