Why the Mahmood professional negligence claim against KPMG failed

Jemma Brimblecombe, partner, and Lavanya Loganathan, associate at Kingsley Napley LLP explain why the Mahmood case on breach of professional neglience was struck out and the key legal takeaways for accountancy and professional services firms

Jemma Brimblecombe, partner, and Lavanya Loganathan, associate at Kingsley Napley LLP explain why the Mahmood case was struck out, and how the decision highlighted that claimants must present concrete evidence of duty, breach, causation, and loss

On 14 January 2025, the High Court  struck out a claim for professional negligence and misconduct brought by a property developer against KPMG LLP and one of its partners on the grounds of abuse of process and lack of merit.

The claim, valued at over £1.2bn, was dismissed in its entirety, with the court concluding that it was an attempt to relitigate previously decided issues, showing the court’s reluctance to entertain abusive litigation.

In this article, we explore the decision and set out the requirements of a professional negligence claim and how accountancy firms can successfully defend these claims.

Your free features:

  • Breaking news and expert analysis
  • Customisable daily newsletters
  • Six free CPD learning modules each year
  • Personalised CPD tracker
  • Top 75 Firms league tables
  • Regulatory changes
  • Hardman’s Tax Data

Sign up to Business & Accountancy Daily

Related Articles
Subscribe