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Pro Rata Holiday & Annual Leave Calculator

Calculate statutory holiday and paid annual leave entitlements for part-time workers in the UK, Australia, or custom contractual allowances.

Understanding Statutory Leave Entitlements

Part-time workers are legally entitled to receive equivalent paid annual holiday proportional to full-time staff. However, the legal calculation methods differ markedly across jurisdictions:

  • UK Statutory Leave (5.6-Week Rule): Under the Working Time Regulations 1998, UK staff are entitled to 5.6 weeks of paid holiday per year. For employees on fixed working days, this equals days worked per week × 5.6, subject to an absolute statutory cap of 28 days.
  • Australian National Employment Standards (NES): Under Australian Fair Work legislation, permanent employees accrue 4 weeks of paid annual leave per year based on their ordinary weekly hours: ordinary weekly hours × 4.

Worked Holiday Leave Calculation Examples

Example 1: UK Part-Timer (3 Days / Week)

An employee in the UK works 3 days per week:

  • • Formula: 3 days × 5.6 weeks
  • • Total Entitlement: 16.80 days
  • • Cap check: 16.80 < 28 (no cap applied)

Example 2: Australian Part-Timer (20 Hours / Week)

A part-time employee in Australia works 20 ordinary hours per week:

  • • Formula: 20 hours × 4 weeks
  • • Full-Year Entitlement: 80.00 hours
  • • Part-Year (26 weeks): 80 × (26 ÷ 52) = 40.00 hours
Got Questions?

Frequently Asked Questions (Holiday Leave)

Clear guidelines on statutory holiday entitlements, part-time accrual, and country standards.

Why is UK statutory holiday entitlement capped at 28 days?
Under Regulation 13 and 13A of the UK Working Time Regulations 1998, statutory holiday is capped at 28 days (5.6 weeks × 5 days) to ensure employees working 6 or 7 days per week do not receive disproportionate statutory holiday compared to full-time staff. Employers may voluntarily offer additional contractual holiday above 28 days.
How is annual leave calculated for part-time workers in Australia?
Under the Australian National Employment Standards (NES), part-time employees are entitled to 4 weeks of paid annual leave based on their ordinary weekly hours. For example, an employee working 25 ordinary hours per week receives 100 hours of paid annual leave per year (25 × 4), which accrues progressively throughout each pay period.
Do part-time employees get paid for bank holidays and public holidays?
In the UK and Australia, if an employer includes public holidays in statutory holiday entitlement, part-time employees receive a pro rata holiday allowance to prevent unfair disadvantage under part-time worker regulations. If a bank holiday falls on an employee's scheduled working day, it is typically taken from their accrued holiday balance.
How is holiday entitlement prorated for mid-year starters and leavers?
When starting or leaving employment mid-year, annual leave is prorated based on the portion of the leave year worked. In the UK, standard convention allocates 1/12th of full-year entitlement for each complete month worked. In Australia, leave accumulates continuously with every hour worked from day one.
Can an employer round down accrued pro rata holiday days or hours?
In the UK, statutory employment law explicitly forbids employers from rounding down accrued annual leave, though they may round up or track holiday in precise hours. In Australia, annual leave balances accumulate as exact decimal hours and must be recorded or paid out without negative rounding.
What happens to untaken pro rata holiday when leaving an employer?
When employment terminates, employers are legally required to calculate accrued statutory annual leave from the start of the current leave year up to the final day of employment. Any accrued, untaken leave must be paid out in full in the final paycheck as payment in lieu of notice.