Effective 1 October 2024

Amendments were made relating to CPD, key definitions and audit-firm eligibility, recognition of overseas audit qualifications, monitoring compliance and committee definitions.

• Access the UK Audit Regulations and Guidance effective 1 October 2024

New 2025 Audit Regulations: notification requirements and sole practitioner alternates

2025 changes to Audit Regulations are now confirmed and will take effect on 1st June. The new regulations introduce a requirement for ICAEW-registered audit firms to notify ICAEW when appointed to certain complex or high-risk audits. There is also a new requirement for sole practice auditors to appoint an alternate. Sole practice auditors will have until the end of a six month transition period to appoint an alternate (ie, until 1st December 2025).

• Read or listen to a summary of the changes
• Access the 1 June 2025 Audit Regulations
• Read our full guidance document about these changes

1 April 2025 compliance deadline: audit-firm eligibility

The deadline to ensure your firm is compliant with changes that relate to audit firm control was 1 April 2025. Ensure your firm remains eligible to carry out audit work under the changes.

• Audit eligibility changes: check your firm will meet new requirements
• Check and monitor your firm's audit eligibility 

UK Audit Regulations and Guidance Archive

• Download a Schedule of Amendments listing the 1 October 2024 changes
• Access the UK Audit Regulations and Guidance archive

ICAEW has revoked its Recognised Accountancy Body (RAB) status in Ireland.

Chartered Accountants Ireland has recently issued new stand-alone Audit Regulations for Ireland. The Audit Regulations Ireland replace the Audit Regulations and Guidance (effective 1 January 2020) and the addendum effective 22 December 2021.

• Access the Audit Regulations and Guidance for Ireland (effective from 6 April 2022)

Special arrangements apply to firms that audit companies incorporated in one of the Crown Dependencies that have 'transferable securities' admitted to trading on a 'regulated market' in the EU. The arrangements apply even if the firm or company is not operating in a Crown Dependency.

• Access the requirements

Practical audit support and guidance is available to ICAEW auditors including the latest regulatory updates, webcasts and monitoring reports.

• Access a wide range of useful resources

Issues for audit firms outside the US that audit entities with a primary or secondary listing in the US, or a significant subsidiary thereof, and need to register with the PCAOB.

All audit registered firms considering a change of ownership to introduce private capital should engage with the Financial Reporting Council (FRC) and their recognised supervisory body (RSB) as early as possible.

• Learn more and read FRC guidance on the independence implications of private capital funding