Sickness Absence
An employee is off sick and it's starting to affect the business.
Acting too quickly creates legal risk. Doing nothing creates a different problem.
Long-term sickness and persistent short-term absence are among the most legally sensitive areas of employment management. The right approach depends on what's causing the absence, and getting that wrong has serious consequences.
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Written and reviewed by Samantha Newton FCIPD, Chartered Fellow CIPD · 25+ years' employee relations experience · Last reviewed June 2026
At a glance
- What it is
- Managing long-term or repeated absence fairly and lawfully.
- Main risk
- An uncapped disability discrimination claim.
- First step
- Get a clear medical picture before any decision.
- Typical timescale
- Varies with the medical position.
Why sickness absence is trickier than it looks
You want to support an employee who is genuinely unwell. You also have a business to run, a team carrying extra load, clients affected, and no clear end in sight. That tension is real, and most business owners handle it by either doing nothing or acting without the right process.
Sickness absence intersects with multiple areas of law simultaneously. Employment law, disability discrimination, and potentially health and safety obligations all apply, often at the same time. Whether the condition is likely to be a disability under the Equality Act changes everything about how you must manage it.
Early, structured advice is almost always cheaper than addressing the legal consequences later.
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How to handle this, in a couple of minutes
Typical situations supported
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Where sickness absence management goes wrong
The most common mistake is treating all absences the same way. An employee with a long-term condition that qualifies as a disability has significantly stronger legal protection than someone with an unrelated short-term illness. Using the same approach for both is a frequent and costly error. Other common failures include:
Managing absence without first understanding whether disability law applies
Making contact in ways that worsen the employee's condition or create additional claims
Failing to obtain or act on occupational health advice
Dismissing for capability before a fair process has been completed
Not considering reasonable adjustments before taking action
Applying absence triggers inconsistently across the team
For persistent short-term absence, the issues are different, but the need for structure and consistency is the same. Return-to-work conversations, absence triggers, and formal capability processes all need to be handled correctly and documented.
What's at stake
What's actually at risk
No upper limit
Disability discrimination awards are uncapped at tribunal. Mishandled long-term sickness is one of the most common routes to one.
- Disability discrimination claims are uncapped at tribunal, with no limit on what an employee can be awarded.
- A capability dismissal for ill health needs genuine consultation, consideration of alternatives, and proper medical evidence first.
- Doing nothing carries its own cost: team resentment, disruption, and a situation that gets harder the longer it runs.
Sickness absence is one of the most legally sensitive areas of employment management. Getting clear advice early is always cheaper than dealing with the consequences later.
The process
Managing absence, step by step
A clear, fair process is what protects you at every stage. Here's how it runs, and where Samantha guides you through it.
Contact
Stay in supportive, regular contact and keep notes.
Medical view
Get occupational health or medical evidence.
Adjustments
Consider reasonable adjustments and a phased return.
Review
Assess whether a sustainable return is realistic.
Decision
Only then, if needed, a fair capability process.
- 1
Contact
Stay in supportive, regular contact and keep notes.
- 2
Medical view
Get occupational health or medical evidence.
- 3
Adjustments
Consider reasonable adjustments and a phased return.
- 4
Review
Assess whether a sustainable return is realistic.
- 5
Decision
Only then, if needed, a fair capability process.
How Magenta HR helps
Samantha assesses the specific situation, the nature and length of the absence, what has already been communicated, and any relevant medical information, and gives you a clear, practical plan:
Assessment of whether disability protection is likely to apply
Advice on the right approach to maintaining contact without making things worse
Guidance on occupational health referrals and how to use the report
Clear process for managing a return to work, including phased returns
Structure for a capability process if absence is genuinely unsustainable
Advice on when dismissal may be fair and how to approach it correctly
Written plan within 48 hours
Samantha understands this involves real people and difficult conversations. Most business owners in this situation want to do the right thing by their employee, and protect their business. Both are possible with the right approach.
The Magenta Method
From problem to sorted, in four clear steps
A clear, four-step approach so you always know where you stand and what happens next.
Understand
We get a clear, honest picture of what's really going on, beneath the surface.
Assess the risk
Your legal exposure and commercial impact, explained in plain English.
Plan the right path
Realistic options and the correct steps, in order, written up within 48 hours.
Resolve & protect
Support through it, then keep you protected so the next issue is caught early.
Real situation · anonymised
Long-term sickness absence
Back at work with a proper plan in place
She'd been off for three months. No one knew what to say.
Situation
A valued employee had been signed off with stress. The owner kept delaying contact, not wanting to make things worse. Meanwhile the team was stretched and morale was dropping.
What changed
A proper welfare contact process was put in place, a clearer medical picture was established, and a phased return plan was built that the employee actually felt supported by.
Outcome
She returned part-time within six weeks, full-time shortly after. The owner stopped dreading every Monday morning.
Managing Director, IT consultancy
Reviewed by Samantha Newton FCIPD, Chartered Fellow of the CIPD, with 25+ years handling situations like this.
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Common questions
My employee has been off sick for weeks. What am I allowed to do?+
You can stay in touch, request medical information, and begin a structured management process. What you cannot do is simply wait indefinitely or push ahead without a proper process. The right approach depends on the nature of the absence, how long it has been running, and whether a disability may be involved. Getting advice before you act is nearly always worth it.
How do I know if this counts as a disability?+
A condition is a disability under the Equality Act if it has a substantial and long-term effect on normal day-to-day activities. Long-term means likely to last 12 months or more. Many conditions that might not seem serious can still meet this threshold. If you are unsure, treat it as potentially covered and take advice.
I need this role filled. Can I replace the employee while they are off?+
You may be able to, but only after following the right process. Replacing someone without a fair capability process, or without considering alternatives such as adjusted duties, regularly results in tribunal claims. The steps you take before reaching that decision matter significantly.
When does disability law apply to sickness absence?+
A condition is a disability under the Equality Act 2010 if it has a substantial and long-term adverse effect on a person's ability to carry out normal day-to-day activities. Long-term means likely to last 12 months or more. Many conditions that might not seem like disabilities, depression, anxiety, back problems, can meet this threshold.
Can I dismiss someone who is off sick long-term?+
Potentially yes, but the process matters enormously. You need to have consulted properly, considered all alternatives including adjusted duties or a different role, obtained medical evidence, and followed a fair capability process. Dismissing without this, even after months of absence, regularly results in tribunal claims.
How do I stay in touch without making things worse?+
This depends on the nature of the absence. Contact that is too frequent or in the wrong format can be used as evidence of pressure or harassment. Samantha advises on what appropriate contact looks like for the specific situation.
Do I need to refer the employee to occupational health?+
It is not a legal requirement, but in most long-term absence situations it is strongly advisable. A GP fit note tells you the employee is unfit for work. An occupational health report tells you what they can and cannot do, and what adjustments might help. The distinction is important.
What if the employee refuses to engage with the process?+
You can still manage the absence, but you need to document your efforts to engage and the employee's response carefully. Refusal to cooperate does not prevent you from reaching a point where dismissal is fair, but you need the right process to get there.
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