Updates on Holiday Pay Calculations
The shocking truth behind the calculations that could land you in an employment tribunal
• publicNavigating Complexities for Irregular Hours and Part-Year Workers
Holiday pay affects almost every working person in the UK, yet it remains one of the most misunderstood aspects of employment compensation. For those who work irregular hours or only during part of the year, understanding how holiday pay works can feel like solving a puzzle with missing pieces.
Many employees wonder why their holiday pay sometimes doesn't match their regular earnings. At the same time, employers struggle to calculate the correct amounts, especially when dealing with variable work patterns.
Litigated specializes in translating complex employment law into practical guidance. We've seen firsthand how holiday pay calculations can create confusion and even lead to employment tribunal cases when done incorrectly.
Have you ever wondered if you're receiving the right amount of holiday pay? Or as an employer, are you confident your calculation methods would stand up to legal scrutiny?
The stakes are high—incorrect calculations can lead to substantial back-pay claims, damaged employee relations, and potentially costly tribunal proceedings. Through this article, we'll unpack the legal foundations, explain practical calculation methods, analyze recent game-changing legal cases, and provide actionable strategies to ensure compliance.
Whether you're an HR professional, business owner, or employee, understanding these principles will help you navigate holiday pay with confidence and clarity.
The Legal Landscape of Holiday Pay in the UK

Holiday pay in the UK isn't just a nice benefit—it's a legal requirement governed by specific regulations that protect workers' rights to paid time off. The foundation of these protections lies in ensuring that taking holiday doesn't financially penalize workers.
The core principle is straightforward: employees should receive the same pay during holidays as they would if they were working. However, putting this principle into practice becomes complicated when dealing with varying work patterns, commission structures, or part-year employment.
Recent years have seen significant developments in how holiday pay is interpreted through case law, with courts increasingly favoring approaches that reflect real-world earning patterns rather than rigid formulas.
What happens when these calculations go wrong? Employees may find themselves short-changed, while employers face the risk of multiple claims and significant legal costs.
Understanding the Working Time Regulations (WTR)
The Working Time Regulations 1998 establish the framework for holiday entitlement and pay in the UK. These regulations guarantee that full-time workers receive at least 5.6 weeks of paid holiday each year (typically 28 days, which can include bank holidays).
For holiday pay calculations, the WTR requires that workers receive their normal remuneration during periods of annual leave. This means holiday pay should reflect what an employee would typically earn if they were working.
The regulations have evolved through interpretation by courts. Initially, only basic pay was included, but landmark cases have expanded this to include regular overtime, commission, and certain bonuses that form part of normal remuneration.
The reference period for calculating average pay has also changed, moving from 12 weeks to 52 weeks (or the number of weeks employed if less than 52). This change aims to provide a more accurate picture of typical earnings, especially for those with seasonal variations in their work.
Key Definitions: Irregular Hours and Part-Year Workers
Understanding who qualifies as an irregular hours or part-year worker is fundamental to applying the correct holiday pay calculations.
Irregular hours workers include:
- Zero-hours contract workers
- People who work varying shift patterns
- Those who receive different pay depending on hours worked
Part-year workers:
- Are employed throughout the year
- Only work and receive payment for part of it
- Common example: teaching staff who don't work during school holidays
The distinction matters because different calculation methods may apply depending on which category a worker falls into. For irregular hours workers, averaging earnings over the reference period provides the basis for holiday pay. Part-year workers present additional complications, as their calculation must account for periods of non-work.
Why does this matter? Because using the wrong method can lead to significant underpayment or overpayment, creating liability for employers and financial hardship for workers.
Navigating the Complexities of Holiday Pay Calculation

Calculating holiday pay correctly requires attention to detail and an understanding of both the legal requirements and the practical realities of different working patterns. Many employers still struggle with implementing systems that accurately reflect employees' true earnings when determining holiday pay.
The difference between getting it right and getting it wrong can be substantial. In some cases, employees have claimed thousands of pounds in back pay when their holiday pay was incorrectly calculated over extended periods.
Litigated has observed that the most common errors occur when employers fail to include all elements of regular pay or when they apply overly simplistic formulas without considering the specific circumstances of different employee groups.
What makes these calculations particularly challenging? is that they must balance mathematical precision with real-world fairness.
The Statutory Calculation Method
The statutory method for calculating holiday pay begins with determining the reference period—now 52 weeks for most workers (or the number of complete weeks the worker has been employed if less than 52).
For workers with fixed hours and pay, the calculation is relatively straightforward: their weekly rate of pay applies to holidays. However, for those with variable pay or hours, employers must:
- Identify the relevant reference period (typically the previous 52 weeks where the employee received pay)
- Calculate the total pay received during those weeks
- Divide by the number of weeks in the reference period to find the average weekly pay
- Apply this average to each week of holiday taken
Importantly, weeks where no pay was received should be disregarded, and earlier weeks should be brought into the calculation instead. This prevents periods of unpaid leave or non-work from artificially reducing holiday pay.
The calculation must include all elements of "normal remuneration"—not just basic salary but also regular overtime, commission, and certain bonuses. This comprehensive approach ensures that holiday pay reflects the employee's typical earnings pattern.
Challenges with Irregular Hours and Part-Year Workers
Calculating holiday pay for irregular hours workers presents unique challenges. When hours vary significantly week to week, using a longer reference period helps smooth out fluctuations and provide a more representative average.
But what about part-year workers? The Supreme Court's ruling in Harpur Trust v Brazel (2022) confirmed that these workers are entitled to the full 5.6 weeks of holiday pay based on their average weekly pay during worked weeks, rather than having their entitlement pro-rated.
This can create situations where part-year workers receive proportionally more holiday pay than full-year colleagues.
Worker Type | Working Pattern | Holiday Pay (% of Annual Earnings) | Calculation |
---|---|---|---|
Part-year | 32 weeks per year | 17.5% | 5.6 weeks ÷ 32 weeks |
Full-year | 52 weeks per year | 10.8% | 5.6 weeks ÷ 52 weeks |
What challenges does this create for employers? Many payroll systems aren't designed to handle these nuanced calculations, leading to manual adjustments that increase the risk of errors. Additionally, budgeting becomes more complex when holiday pay requirements vary significantly between different categories of workers.
For workers with both irregular hours and part-year patterns, the calculation becomes even more intricate, requiring careful analysis of working patterns and pay history.
The Impact of Recent Case Law
The landscape of holiday pay calculation has been transformed by several significant legal cases. These judgments have moved away from rigid formulas toward approaches that prioritize the practical outcome of calculations.
Courts have increasingly emphasized that holiday pay should genuinely reflect what workers would have earned had they been working, regardless of whether this aligns with traditional calculation methods.
This shift has created both clarity and new challenges. While the principles are now clearer, their practical application requires more nuanced analysis of individual working patterns and pay structures.
How have these legal developments affected real workplaces? Many organizations have had to review and revise their holiday pay practices, sometimes resulting in significant back-pay settlements for affected workers through employment tribunal employment tribunal cases.
Analysis of the East Lancashire NHS Trust v Imran Akram Case
The East Lancashire NHS Trust v Imran Akram case offers crucial insights into how tribunals approach holiday pay calculations for irregular hours workers.
Mr. Akram, a part-time doctor working irregular hours, challenged the trust's method of calculating his holiday pay. The trust had used a divisor of 365 days to calculate his daily rate, which Mr. Akram argued didn't reflect his actual working pattern of fewer days per year.
The Employment Appeal Tribunal (EAT) focused on the practical outcome of the calculation rather than strict adherence to a formula. It found that the trust's method resulted in holiday pay that didn't match what Dr. Akram would typically earn when working, violating the principle that holiday pay should correspond to normal remuneration.
"The Akram case represents a significant shift toward substance over form in holiday pay calculations. Tribunals are increasingly concerned with whether employees are receiving what they would have earned, rather than with strict adherence to formulas." - Alan Lewis, Employment Law Partner at Irwin Mitchell
Critically, the EAT emphasized that employers should apply a "sense check" to their calculations to ensure the results align with the worker's typical earnings pattern. This common-sense approach prioritizes fairness over mathematical precision.
The case demonstrates that tribunals will look beyond the mere application of a formula to examine whether the resulting holiday pay genuinely reflects what a worker would have earned had they been working instead of taking leave.
Implications for Holiday Pay Calculation Methods
Following cases like Akram, employers must reassess their calculation methods to ensure they produce fair and legally compliant results. The focus has shifted from simply following a prescribed formula to ensuring the outcome accurately reflects normal earnings.
This means employers should:
- Review their current calculation methods and test whether they produce results that match employees' typical earning patterns
- Consider the specific working arrangements of different employee groups rather than applying a one-size-fits-all approach
- Document the reasoning behind their calculation methods to demonstrate compliance with the principles established in case law
- Regularly review calculations to ensure they remain appropriate as working patterns evolve
Research has found that many organizations benefit from conducting audits of their holiday pay practices to identify potential compliance gaps before they lead to disputes or claims.
The increased emphasis on outcome rather than process means that employers have more flexibility in how they approach calculations, provided they can demonstrate that the result fairly represents workers' normal pay.
For HR professionals, this means developing a deeper understanding of different working patterns within their organization and tailoring holiday pay approaches accordingly.
Ensuring Compliance and Best Practices
Complying with holiday pay requirements isn't just about avoiding legal problems—it's about creating fair systems that support positive employee relations. Organizations that get holiday pay right demonstrate their commitment to treating workers fairly and respecting their rights.
Developing robust practices requires a combination of legal knowledge, practical systems, and regular review. Litigated recommends a proactive approach that anticipates potential issues rather than reacting to problems after they arise.
What steps can organizations take to improve their holiday pay practices? The answer lies in combining careful calculation with common-sense verification and clear communication.
Conducting a "Sense Test" for Accuracy
Following the Akram case, the sense test has emerged as a vital tool for verifying holiday pay calculations. This approach looks beyond formulas to assess whether the calculated holiday pay reasonably reflects what an employee would typically earn.
To conduct a sense test, compare the holiday pay amount with the employee's actual earnings over comparable periods. If there's a significant discrepancy that can't be explained by legitimate factors, the calculation method may need adjustment.
For example, if an employee typically earns £500 per week but their calculated holiday pay works out to only £350 per week, this fails the sense test unless there's a clear explanation for the difference.
The sense test should be applied across different worker categories and at different times of year to account for seasonal variations in earnings. This practical verification step often reveals issues that might be missed when focusing solely on formula-based calculations.
Documentation is key—record both the calculation method and the reasoning behind it, including your sense test results. This creates an audit trail that demonstrates your commitment to compliance and can prove invaluable if questions arise later.
Updating Holiday Pay Policies
Clear, up-to-date policies are essential for consistent application of holiday pay principles. Research finds that the most effective policies combine clear guidance with practical examples relevant to the organization's specific working arrangements.
When updating your holiday pay policies, consider:
- Explicitly addressing different worker categories (fixed hours, irregular hours, part-year workers) and explaining how holiday pay is calculated for each
- Including practical examples that demonstrate how the calculations work in typical scenarios
- Outlining the process for raising questions or concerns about holiday pay calculations
- Establishing regular review dates to ensure the policy keeps pace with legal developments
- Clarifying who is responsible for calculations and approvals
Communication is equally important—the best policy has limited value if workers and managers don't understand it. Consider providing training sessions or guidance materials that explain key principles in accessible language.
Regular review cycles help ensure policies remain aligned with evolving case law and organizational practices. Set calendar reminders to revisit your holiday pay approach at least annually or whenever significant legal developments occur.
Conclusion
Holiday pay calculation presents genuine challenges, particularly for organizations with diverse working arrangements. The evolution of case law has emphasized that holiday pay must truly reflect normal remuneration, requiring approaches that prioritize fairness over rigid formulas.
Understanding the principles behind holiday pay calculations is essential for both employers and workers. While the legal framework provides guidance, its practical application requires attention to individual circumstances and a commitment to equitable outcomes.
Analysis shows that the most successful organizations take a proactive approach to holiday pay compliance. They develop clear policies, apply practical verification methods like the sense test, and stay informed about legal developments that might affect their practices.
The financial implications of getting holiday pay wrong can be significant, with potential back-pay claims extending over multiple years. Beyond these costs, incorrect calculations can damage employee trust and engagement, creating problems that extend far beyond the payroll department.
By focusing on both the letter and spirit of holiday pay requirements, organizations can create systems that honor workers' rights while remaining practically manageable. The goal isn't just compliance—it's creating fair compensation practices that support positive working relationships.
As holiday pay law continues to evolve, staying informed and adaptable remains the best strategy for navigating this complex but essential area of employment practice.
FAQs on Holiday Pay Calculation
How is holiday pay calculated for zero-hours contract workers?
For zero-hours workers, holiday pay should be based on average weekly pay calculated over a 52-week reference period (or the number of weeks worked if less than 52). This includes all hours worked and all types of pay received during that period. Only weeks where some work was done should be counted—if no work was performed in a particular week, you should look further back to find the 52 weeks where pay was received.
Can commission and bonuses be excluded from holiday pay calculations?
No, regular commission payments and bonuses that form part of normal remuneration must be included in holiday pay calculations. The key test is whether the payment is made with sufficient regularity to be considered part of normal pay. One-off or truly discretionary bonuses might be excluded, but regular performance-based payments should generally be included.
How does the 52-week reference period work in practice?
The reference period includes the last 52 weeks where the worker received pay, ignoring any weeks where no pay was received. This means you might need to look back further than 52 calendar weeks to find 52 paid weeks. For a worker employed less than 52 weeks, use the total number of weeks they've worked. This approach ensures that periods of unpaid leave don't artificially reduce holiday pay.
"The most common mistake employers make with holiday pay is treating it as a simple percentage of basic pay. The reality is that holiday pay must reflect all aspects of normal remuneration, including regular overtime and commission." - Paul Chamberlain, Head of Employment at JMW Solicitors
What records should employers keep to support holiday pay calculations?
Litigated recommends maintaining detailed records of hours worked, pay received, and calculation methods used. These should include timestamps showing when calculations were performed, documentation of any sense tests conducted, and notes explaining the reasoning behind any adjustments made. Good record-keeping demonstrates compliance and provides essential evidence if calculations are later questioned.