Search

How can we help?

Icon

Unofficial work before start date not counted towards continuous employment

In O’Sullivan v DSM Demolition Ltd, the Claimant’s contract of employment recorded a start date of 2 November 2015, and he first appeared on the Respondent’s payroll and worksheets from this date.

However, the Claimant had completed some work for the Respondent in the week commencing 26 October 2015 and received £100 cash in hand from an employee of the Respondent for this work.

Following his dismissal on 27 October 2017, the Claimant alleged he had been unfairly dismissed, but it was held that he did not have sufficient service to bring the claim.

The Claimant appealed on the grounds that his employment had started on 26 October 2015, not 2 November 2015 as the ET had found.

This case highlights the importance of a clear start date when bringing claims to the ET.

The EAT dismissed the Claimant’s appeal and held that the ET had been entitled to find the work performed in the week of 26 October was “unofficial”, based on the documentary evidence above, the fact the Claimant was not paid the £12/hour rate for this work, and the fact the Respondent’s client had not been charged for the Claimant’s work in that week.

This case highlights the importance of a clear start date when bringing claims to the ET.   It is important to be aware that employers agreeing to ‘off the books’ working without tax and national insurance properly deducted and paid risk very substantial penalties.

Disclaimer
This information is for guidance purposes only and should not be regarded as a substitute for taking legal advice. Please refer to the full General Notices on our website.

Author profile

About this article

Read, listen and watch our latest insights

art
  • 16 July 2026
  • Corporate and M&A

EMIs – The basics

Discover the essentials of Enterprise Management Incentives (EMIs), an HMRC-approved employee share scheme offering tax advantages. Learn how EMIs incentivise staff, eligibility requirements, and how Clarkslegal can help tailor a scheme for you.

Pub
  • 15 July 2026
  • Litigation and dispute resolution

ICC Arbitration Rules 2026 overhaul: The end of Terms of Reference and future trends – Episode 3

In this final episode, Jack Hobbs (Clarkslegal) and Christopher Howitt (Three Stone) discuss the impact of the ICC Arbitration Rules 2026 overhaul, focusing on the end of Terms of Reference. Hear expert insights and practical tips for adapting to the new rules.

art
  • 15 July 2026
  • Employment

New guidance on interim relief: More applications, same high threshold

In certain limited unfair dismissal claims (such as those for automatic unfair dismissal relating to a protected disclosure) claimants can apply for interim relief. This is an emergency measure which essentially prevents a dismissal from taking effect until the claim has been heard.

Pub
  • 09 July 2026
  • Litigation and dispute resolution

The Arbitration Act 2025 – Factsheet

This factsheet outlines the major reforms and key developments introduced by the Arbitration Act 2025, including updates on summary disposal, jurisdictional challenges, emergency arbitrators, arbitrator disclosure duties, and governing law in arbitration proceedings.

art
  • 09 July 2026
  • Immigration

Right to Work Checks are changing from 1 October 2026: Is your business ready?

The Home Office’s new rules, effective 1 October 2026, will overhaul right to work checks and raise the risk of civil penalties for UK businesses.

art
  • 08 July 2026
  • Privacy and Data Protection

ICO prosecutes employee under the Data Protection Act for forwarding client data to his personal email address

The issue of employees taking confidential business information or personal data when moving to a new employer remains a significant concern for businesses.