Omnikit
DevFilesMoneyAll tools
Ctrl K
Dev toolsFile toolsMoney calculatorsAll tools
HomeMoney calculatorsUKUK Holiday Entitlement CalculatorIrregular Hours Holiday Calculator

Irregular Hours Holiday Calculator

money

Holiday for irregular-hours and part-year workers: 12.07% of hours worked each pay period

Estimates only, not financial advice. What you type stays on your device. Checked against sources on 16 Oct 2026.

Irregular-hours and part-year workers in the UK build up holiday at 12.07% of the hours they work in each pay period, for leave years starting from 1 April 2024. GOV.UK rounds up to the next whole hour when the result is 0.5 or more past an hour, so 30 hours worked in a week earns 3.621, which becomes 4 hours of leave.

Next:
  • UK Statutory Redundancy Pay Calculator Statutory redundancy pay: half, one or one and a half weeks a year by age, £751 weekly cap
  • UK Statutory Sick Pay Calculator SSP 2026-27: £123.25 a week or 80% of earnings, daily rate by qualifying days, 28 weeks
  • UK Statutory Maternity Pay Calculator SMP 2026-27: 90% of earnings for 6 weeks, then £194.32 or 90% for 33 weeks, with the total

Rates and rules read from the sources listed on this page (the earliest on 16 Oct 2026); they may have changed since.

How to use Irregular Hours Holiday Calculator

1

Enter your figures. The result updates as you type.

2

Read the result and the breakdown below it.

3

Share the link or embed the calculator.

How Irregular Hours Holiday Calculator works

Statutory holiday is the minimum paid annual leave an employer must give. This page works it out the way GOV.UK describes it, for regular days, regular hours and irregular hours.

Irregular hours and part-year work. For leave years starting on or after 1 April 2024, workers whose hours change from one pay period to the next build up 12.07% of the hours worked in each pay period. GOV.UK rounds up to the next hour when the result is half an hour or more past a whole hour, so 30 hours gives 4 hours of leave.

Leaving part way through. What you have built up is the year's leave times the share of the leave year you worked. Leaving on 30 June after 181 days of a 365-day year gives 13.88 days for a 5-day week. Untaken statutory leave must be paid in your final pay.

The rest of the article, and all 6 questions about UK Holiday Entitlement Calculator, are on the UK Holiday Entitlement Calculator page.

Frequently asked questions

How is holiday worked out for irregular hours?

Irregular-hours and part-year workers build up 12.07% of the hours they actually work in each pay period, for leave years starting on or after 1 April 2024. GOV.UK rounds up to the next hour when the result is 0.5 or more past an hour: 30 hours earns 4 hours.

How much holiday do I get if I start part way through the year?

One-twelfth of the full year's leave for each month left in the leave year, counting the month you start, rounded up to the nearest half day. Someone on a 5-day week starting in the last 3 months of the leave year gets 7 days.

What holiday am I owed when I leave a job?

Your employer must pay for statutory leave you built up but did not take, even after a dismissal for gross misconduct. Work out the year's leave times the share of the leave year you worked, then take away the leave you already used.

Does holiday build up while I am off sick or on maternity leave?

Yes. Statutory holiday keeps building up during sick leave and during maternity, paternity and adoption leave. Leave you could not take because of sickness can be carried into the next year, up to 20 of the 28 days for regular-hours workers.

Sources

  • GOV.UK, Holiday entitlement: Entitlement5.6 weeks a year, 28 days for a 5-day week, part-time pro rata, 28-day limit
  • GOV.UK, Holiday entitlement: Calculate leave entitlementStarting part way (one-twelfth a month, up to the half day), accrual, irregular hours at 12.07%
  • GOV.UK, Holiday entitlement: Taking holiday before leaving a jobLeave due on leaving depends on how much of the leave year has passed; untaken leave is paid

The law behind this calculator:

  • The Working Time Regulations 1998, regulation 13 (the whole act on the official site)
  • The Working Time Regulations 1998, regulation 13A (the whole act on the official site)
  • The Working Time Regulations 1998, regulation 14 (the whole act on the official site)

Applies to: United Kingdom. Last verified 16 October 2026.

Figures from GOV.UK, Holiday entitlement: Entitlement and 2 other sources listed above, read 16 October 2026. Built by Saifuddin, Omnikit.

Rates and rules change; check the source before you rely on a figure.

Still stuck? Ask about UK Holiday Entitlement Calculator and anybody who knows can answer. No account needed.

More ways to use UK Holiday Entitlement Calculator

  • UK Holiday Entitlement CalculatorStatutory holiday: 5.6 weeks, 28-day limit, part-time, irregular hours at 12.07%, leaving

Same job, other tools: Redundancy Pay Calculator Northern Ireland – Northern Ireland redundancy pay: the same age bands, a £783 weekly cap, up to £23,490.

On the related tools: Postgraduate Loan Repayment Calculator (UK) – UK Postgraduate Loan repayments: 6% of pay over £21,000 a year (£1,750 a month) · SSP Daily Rate Calculator – SSP per day for 1 to 7 qualifying days a week, rounded up to the penny like HMRC.

Related tools

All money calculators
UK Student Loan Repayment Calculator 2026-27UK student loan repayments per pay for 2026-27: Plans 1, 2, 4, 5 and Postgraduate LoanUK Notice Period CalculatorUK statutory notice: 1 week a full year from 2 to 12 years, or your contract if longerUK Statutory Maternity Pay CalculatorSMP 2026-27: 90% of earnings for 6 weeks, then £194.32 or 90% for 33 weeks, with the totalUK Statutory Redundancy Pay CalculatorStatutory redundancy pay: half, one or one and a half weeks a year by age, £751 weekly capUK Statutory Sick Pay CalculatorSSP 2026-27: £123.25 a week or 80% of earnings, daily rate by qualifying days, 28 weeksUK Minimum Wage CalculatorCheck your pay against the April 2026 UK minimum wage for your age: £12.71 at 21 and overUK Workplace Pension CalculatorUK auto-enrolment pension: employer 3%, you 5%, on earnings between £6,240 and £50,270UK Income Tax Calculator 2026-27Take-home pay for 2026-27 after income tax, National Insurance and student loan

More for UK: all 13 UK calculators.

Was this tool helpful?
Omnikit

Small jobs, done in your browser. Free, fast and private. Files are never uploaded.

Files

  • Compress Image
  • Image to PDF
  • Merge PDF
  • Compress PDF
  • PDF to Word
  • Word to PDF

Dev

  • JSON Formatter & Validator
  • Base64 Encode & Decode
  • JWT Decoder, Verifier & Encoder
  • Password Generator
  • UUID Generator
  • Unix Timestamp Converter

Money

  • SIP Calculator
  • EMI Calculator
  • GST Calculator
  • FD Calculator
  • PPF Calculator
  • Lumpsum Calculator
GuidesQuestionsAboutHow we checkLaw library (beta)PrivacyTermsDisclosureContactMore: Exam practice (UGC NET Paper 1)Runs in your browser. Nothing is uploaded. © 2026 Omnikit (theomnikit.com)