Every year, December and January bring a familiar challenge for employers: a spike in sickness absence. Shorter days, colder weather, and circulating winter viruses all play a part. But the festive season can also give rise to… let’s say… less straightforward absences.
So how do you support genuinely unwell employees, while still managing patterns that don’t feel quite right?
Here’s what businesses need to know.
Why Absence Spikes in Winter
It’s normal to see higher levels of respiratory illness from November to February. Colds, flu, COVID-19, and norovirus all increase during this period. Add end-of-year fatigue, childcare disruptions, and seasonal stress – and absence rates naturally rise.
UK data highlights the impact: in 2024, working days lost due to sickness or injury totalled 148.9 million, equivalent to about 4.4 days lost per worker on average[1]. This shows how even short-term winter illnesses can affect overall workforce availability.
But December brings something extra: parties, late nights, travel, and busy personal schedules. And sometimes, “winter flu” may look suspiciously like a “Christmas hangover”.
The key for employers is balancing trust, fairness, and management – without assuming the worst.
When to Challenge Absence Patterns
Most absences won’t need challenging. But certain indicators suggest a closer look may be appropriate:
- Repeated absences immediately before or after weekends or bank holidays
- A pattern of being unwell every December
- Sickness always coinciding with certain events (e.g., the Christmas party, team rota changes)
- High short-term absences from the same individual
- A sudden change in a normally reliable employee’s attendance
Challenging doesn’t mean accusing. It means:
- Holding a return-to-work meeting
- Asking open, fair questions
- Checking if support is needed
- Reminding employees of absence reporting procedures
- Documenting the conversation appropriately
If patterns continue, a formal attendance review may be reasonable – provided it’s handled consistently, fairly and in line with Company policy.
Fit Notes Over the Christmas Period
During the festive period, many GP surgeries operate reduced hours. This can make it harder for employees to obtain a fit note if their illness continues beyond seven days.
Employers should remember:
- A fit note is only required after seven calendar days of sickness.
- If appointments are genuinely unavailable, allow reasonable flexibility – e.g., accepting confirmation once services reopen.
- Employees cannot be asked to provide a fit note earlier than legally required.
- Self-certification is valid for the first seven days, even over bank holidays.
It’s helpful to remind staff of the process before the Christmas break, so expectations are clear.
Statutory Sick Pay (SSP) at Christmas
SSP rules don’t change over Christmas – but questions often arise:
- Employees receive SSP if they meet the qualifying conditions, regardless of holiday periods.
- Bank holidays count toward the sickness period if they fall within the employee’s normal working days.
- Employees on scheduled annual leave who become sick can opt to reclaim the holiday and receive SSP instead (if eligible).
- Employers must not encourage employees to “just use holiday” if they are genuinely unwell.
Clear communication helps prevent misunderstandings during this period.
Balancing Fairness and Firmness
Winter brings legitimate illness – but absence management still matters. The best approach blends empathy with consistency:
- Apply your sickness policy fairly
- Keep communication open
- Use return-to-work meetings routinely
- Monitor patterns – but avoid assumptions
- Support wellbeing, especially during a stressful season
Ultimately, managing absence well is about maintaining trust while protecting the organisation’s ability to operate.
Final Thought
Winter illness is unavoidable – ‘festive flu’ isn’t. The organisations that handle both with clarity and fairness reduce disputes, maintain productivity, and support their people when it counts.
If you need help reviewing your absence policy or managing a tricky case, our team can guide you through the process with confidence. Get in touch.
[1] Sickness absence in the UK labour market – Office for National Statistics
