In the European Union, publicly listed firms are required to change their auditors at least every 10 years. This regulation is part of the EU's statutory audit reform, which aims to enhance the independence of auditors and the quality of audits. The rotation requirement is intended toprevent long-term relationships between auditors and clients that could compromise the auditor's objectivity.

Regulatory requirement: The EU Audit Regulation (Regulation (EU) No 537/2014) mandates that public-interest entities, including publicly listed firms, must rotate their statutory auditors or audit firms after a maximum of 10 years.

Objective: This measure is designed to reduce the risk of conflicts of interest and ensure a fresh perspective on the firm's financial statements.