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How to manage annualised hours contracts

Discover practical HR guidance for implementing annualised hours contracts, from calculating yearly hours to managing flexible work schedules.

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By Rob Davies, Squire Patton Boggs
Brightmine editor: Susie Munro

Under an annualised hours contract, the employee’s working hours are expressed as a total number of hours to be worked over the year. Annualised hours arrangements allow for flexible working patterns during the year, to help employers meet peaks in demand for their products or services and maintain continuity of production.

As the rationale for adopting an annualised hours scheme is typically production- or service-driven, annualised hours will usually be agreed (often with trade union involvement) across an entire workforce (or sections of it) at a particular site or sites rather than on an individual employee basis.

Although there may be periods during the annualised hours year when the affected employees will not be working, their continuity of service will not be broken as the annualised hours contract remains ongoing. Contractual benefits such as pension entitlement will continue to accrue throughout the annualised hours contract period.

In this guide, learn about:

  • Advantages to employers
  • Advantages to employees
  • The annualised hours calculation
  • Core and non-core hours
  • Written statement of terms and conditions
  • The call-in process
  • Disciplinary action for refusing call-in requests
  • Managing non-core hours
  • Pay
  • Overtime
  • Keeping in touch
  • Annual leave
  • Sickness absence
  • Working hours

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About the authors

Rob Davies

Rob Davies was a professional support lawyer (PSL) in the Labour & Employment team at Squire Patton Boggs. He qualified as a solicitor in 2001 and, prior to becoming a PSL in 2006, covered all areas of contentious and non-contentious employment law. Rob’s PSL role included preparing client training materials and publications, and writing for external publications.


Susie Munro, Senior legal editor at Brightmine

Susie Munro
Senior Legal Editor, Brightmine

Susie has over 20 years’ experience as a solicitor, writer and legal editor. She is responsible for the Brightmine How to guides and FAQs and also works on the Employment law cases.

Susie joined the Brightmine editorial team in 2009 having previously worked for Age Concern England, where she advised on and wrote about age discrimination and mandatory retirement.

After obtaining an LLB in law from Sussex University, then completing the Legal Practice Course at Bournemouth University, Susie qualified as a solicitor in 2004. She specialised in employment law, working in private practice for a firm in Birmingham.

Connect with Susie on LinkedIn.

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