Long-Term Sickness Absence: An Employer’s Guide

Managing extended absence fairly while supporting your people and protecting your business.

Long-term sickness absence can put pressure on any business. Colleagues may be covering extra work, costs can increase and managers may be unsure when an employee will return. At the same time, the employee may be worried about their health and their job.

A clear, supportive approach helps you understand the situation, explore a safe return and make informed decisions when an absence becomes prolonged. This guide explains the practical steps employers can take, from keeping in touch and obtaining medical advice to considering adjustments and, where necessary, a fair capability process.

What Is Long-Term Sickness Absence?

Long-term sickness absence is generally understood as a continuous absence lasting four weeks or more. It may arise from physical illness, injury, a mental health condition or ongoing treatment. Some employees will have a clear recovery timescale; others may not.

The right approach depends on the employee’s circumstances, the medical information available and the needs of the role.

Start With Clear Procedures and Accurate Records

Your sickness absence policy should explain how employees report sickness, who they contact, what evidence is needed and how you will manage ongoing absence. Make sure employees and managers understand it.

Record absence dates, fit notes, contact, medical advice, support offered and agreed next steps. Breathe HR or a secure spreadsheet can help you keep track. Restrict access to health information to those who need it for their role. Records should support fair decisions, without assumptions about someone’s diagnosis or motives.

Agree How to Keep in Touch

Being off sick should not mean being forgotten. However, contact that is too frequent or poorly handled can add to an employee’s anxiety. Agree who will contact them, how they prefer to communicate and how often. Review this arrangement as their health changes.

Use welfare conversations to ask how they are, discuss support and medical updates, and explore possible return timescales without pressuring them to return before they are ready. Share relevant workplace news and agree the next conversation. Ask only for medical information that is relevant to managing their absence.

Phone calls, email, video meetings or a suitable offsite location may make contact easier. If work-related stress or a difficult relationship with their manager is involved, another manager or HR contact may be more appropriate. Explore whether workplace issues need to be addressed.

Use Occupational Health Advice to Understand the Options

An Occupational Health assessment provides independent advice about how an employee’s health affects their work. Unlike a general fit note, it can consider specific duties and workplace demands.

Explain the purpose of the referral, involve the employee in the questions and provide an accurate job description. Follow the appropriate consent arrangements for the assessment and sharing the report. If seeking a report from the employee’s own doctor, obtain the necessary permission and follow the applicable process.

Useful questions include when a return may be possible, which duties the employee can manage, what adjustments might help and whether a phased return or alternative work would be suitable.

Occupational Health recommendations are advice to consider, rather than instructions to follow automatically. The employer remains responsible for employment decisions. Discuss the recommendations with the employee, assess their practicality and effectiveness, and record your reasons. Recommendations that relate to a possible disability need careful consideration alongside your legal duties.

Understand Disability and Reasonable Adjustments

Under the Equality Act 2010, a person is disabled if they have a physical or mental impairment that has a substantial and long-term adverse effect on their ability to carry out normal day-to-day activities. Substantial means more than minor or trivial. Long-term generally means the effect has lasted, or is likely to last, at least 12 months, or for the rest of the person’s life. Recurring or fluctuating effects can also qualify. Cancer, HIV and multiple sclerosis are covered from diagnosis.

An absence lasting four weeks does not automatically mean the employee is disabled. Equally, you should not wait until they have been absent for 12 months before considering the duty to make reasonable adjustments. This Equality Act framework applies in Great Britain; Northern Ireland has separate legislation.

Where the legal duty applies, employers must make reasonable adjustments to remove or reduce substantial disadvantages. Discuss useful support even where disability status is uncertain. Options may include:

• ✓ Different hours, flexible start times or home working where suitable.
• ✓ Changes to duties, workload, equipment or the working environment.
• ✓ A phased return, additional recovery time or an available alternative role.
• ✓ Adjustments to absence review points where appropriate.

Consider the employee’s suggestions, medical advice, effectiveness, cost and practical demands of the business. Record why options are workable or unsuitable, and review arrangements if circumstances change. Some adjustments may be ongoing rather than temporary.

Plan a Supported Return With a Clear Timescale

Before the employee returns, discuss what they feel able to do and what medical advice recommends. Agree a written plan covering hours, duties, support, adjustments and review dates. Explain how pay will work during any reduced-hours period, taking account of the contract, policy and applicable sick pay rules.

A phased return should have a defined start and planned end date, with a clear aim and regular reviews. It should not drift into an indefinite arrangement. Extensions can be considered where appropriate, but agree and record the reason, revised end date and next review. There is no single statutory maximum duration: the plan should reflect the individual’s circumstances and any reasonable adjustment duties.

Hold a private return-to-work meeting as soon as practical to confirm the plan, discuss any relevant effects of medication on safe working, share workplace updates and agree what colleagues need to know. A return-to-work meeting is good practice, rather than a separate legal formality. Keep reviewing progress after the employee returns.

Support the Wider Team

Colleagues covering an extended absence may experience pressure on their own workload and wellbeing. Review priorities, redistribute tasks fairly and consider temporary cover. Explain working arrangements and listen to concerns without sharing the absent employee’s private health information. Reassuring the team that the situation is being managed can help maintain confidence.

What If There Is No Clear Return Date?

Avoid allowing an absence to continue without review. Obtain updated medical advice where useful, consult the employee and reconsider adjustments, alternative duties and available roles. Assess the effect on the business and how long the absence can reasonably be accommodated. Keep records of the evidence, options explored and reasons for decisions.

Can You Dismiss Someone Who Is Signed Off Sick?

Yes, dismissal may be possible in certain circumstances, but being signed off sick is not itself a reason to dismiss. Where genuine ill health prevents someone from working, dismissal on capability grounds should be a last resort.

Before deciding, obtain sufficient up-to-date information, consult the employee, consider the likely prognosis and explore reasonable adjustments and suitable alternative work. Follow a fair capability procedure. Explain the concerns and possible outcome in advance, give the employee a proper opportunity to respond and consider any new evidence. If dismissal follows, explain the decision in writing and offer an appeal.