Every September, HR teams brace for an influx of sickness notifications, chalking it up to the end-of-summer slump or the inevitable return of school bugs. But treat that annual spike as mere seasonal coincidence, and you miss the real driver completely. Look closely at the short-term, stress-related claims hitting your desk right now, and you will find a distinct group of employees pushed entirely past their limits: working caregivers who have just spent six weeks juggling their day jobs alongside an intense, unsupported stretch of unpaid family care.
This is not a peripheral welfare issue. When one in seven people across the UK workforce is balancing paid employment with unpaid care, the fallout for mid-to-large organisations is immediate, operational, and financial. In boardrooms, I still hear leaders ask whether caregiver strain really moves the dial on overall performance. For CFOs, Risk Directors, and CHROs, that is the wrong question entirely. The question is how quickly you can quantify and mitigate this exposure before it crystallises into an unmanageable balance-sheet liability.
The September spike is a caregiver signal
The link between school holidays and workplace absence is well established. Pupil absence climbs steadily over the academic year, reaching its peak in the summer term, and parental pressure tracks right alongside it. Come September, working carers return having spent weeks managing fractured routines without the vital scaffolding of schools or local respite provisions.
The data reflects this breaking point. According to the CIPD, stress and caring responsibilities now sit firmly among the top three drivers of short-term absence, flagged by 26% of employers. At the same time, Carers UK’s 2025 State of Caring survey revealed that 74% of carers experience persistent stress or anxiety, with many suffering panic attacks and severe sleep disruption. What organisations optimistically call the "September reset" is, for thousands of staff, a point of exhaustion.
The hidden cost of unpaid care
The scale of unpaid care across the UK is massive. Census 2021 data from the ONS records around 2.5 million carers in active employment across England and Wales. Carers UK puts that figure even higher, estimating that 1 in 7 employees (14%) juggle paid work with unpaid caring responsibilities.
The physical and emotional toll this takes is unsustainable. In 2025, 42% of carers reported a decline in their physical health because of their caring duties, while 74% said their mental wellbeing had worsened. Zero in on working carers, and 63% report that caring responsibilities have damaged their mental health, with 35% seeing their physical health deteriorate. What you get is a depleted workforce operating well below capacity, carrying an acute risk of short-term burnout and permanent attrition.
The macroeconomic cost matches the human toll. Department for Work and Pensions analysis from March 2025 calculated that unpaid carers falling out of work costs the UK economy £37 billion every single year. At an organisational level, that translates directly into inflated absence rates, runaway recruitment overheads, and lost productivity. Deloitte’s 2024 mental health review pinned the annual cost of poor employee mental health to UK employers at £56 billion, noting that caregivers suffer burnout rates 1.6 times higher than non-caregivers.
Why current wellbeing programmes miss the mark
What I see repeatedly across corporate Britain is a reliance on superficial perks masquerading as duty of care. The standard playbook defaults to individual resilience: mindfulness apps, subsidised gym memberships, and mental health first aiders. While well-intentioned, these tools do not touch the structural realities of care. The CIPD’s 2025 Health and Wellbeing at Work report found that 57% of employers now identify non-work pressures among their top three causes of stress absence.
The disconnect is stark. Employers continue pouring budget into treating the symptoms of exhaustion while leaving the root driver wholly unaddressed. Flexible working policies may sit neatly in an employee handbook, but in practice, taking them up remains widely stigmatised or left to the discretion of inconsistent managers. Carers UK’s 2025 findings show that 69% of working carers feel unable to develop their careers as they would like, while 61% report that their caring responsibilities have dictated the types of roles they can accept.
Strategic implications for HR, Finance, and Risk
For HR leaders, the priority is to abandon reactive absence tracking in favour of proactive caregiver frameworks. That means identifying carers during onboarding, training managers to spot the warning signs of caregiver strain, and bringing caring conversations into regular performance reviews as standard practice.
For Finance Directors, the return on investment is plain arithmetic. Stemming caregiver-related absence and churn cuts recruitment fees, curbs statutory sick pay payouts, and protects core productivity. With 35% of working carers having cut their hours and 21% taking lower-paid posts to stay afloat, businesses are hemorrhaging their most experienced talent to avoid structural friction.
For Risk Managers, this is an unhedged operational liability. Health and Safety Executive figures for 2024/25 show that stress, depression, and anxiety swallowed 22.1 million working days. Ignoring caregiver strain fuels presenteeism, elevates operational mistakes, and increases long-term health insurance claims. The insurance market has already taken note: providers like BUPA, AXA Health, and Vitality have rolled out dedicated caregiver products specifically to counter rising claim volumes.
Five actions for C-Suite and HR leaders
- Map your caregiver population: Use anonymous surveys or employee benefits data to audit the real proportion of staff with caring duties. Benchmark your internal baseline against the 14% national average.
- Introduce paid carer's leave: The Carer’s Leave Act 2023 established a statutory baseline of one week of unpaid leave annually. Progressive employers should go beyond this minimum by offering fully paid leave.
- Train managers to spot caregiver strain: Give front-line managers the tools and confidence to recognise early signs of chronic burnout and conduct constructive, practical discussions around caring duties.
- Embed flexibility into role design: Move past ad hoc arrangements and build formal options directly into role specifications.
- Partner with specialist providers: Work alongside insurers and Employee Assistance Programme vendors to deliver targeted, high-utility support, from emergency respite care referrals to specialist financial guidance tailored to carers.
The forward view
The September spike is not an unavoidable quirk of the calendar; it is a direct warning. With an ageing population and statutory social care under chronic strain, the pressure on working carers will continue to mount. Organisations that treat caregiving as an enterprise risk will pull ahead on retention, workforce output, and employer reputation. Those that maintain a reactive stance will pay for it through absenteeism, talent churn, and brand erosion.
Audit your policies, check your absence data, and ask yourself: is your business actually supporting the people keeping your operations running, or are you simply waiting for the next autumn breakdown?