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Auditing groups of companies

ICAEW’s Audit and Assurance Faculty provides practical insights into the real-world challenges of group audits under the revised ISA (UK) 600 standard. Read the faculty’s key guidance, which has been updated to support auditors navigating the changes.

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Practical considerations for auditors

ICAEW’s guide, Auditing in a group context, reflects the definitions, principles and expectations introduced by ISA (UK) 600 (Revised). Drawing on the experience of group and component auditors, it provides practical guidance on core audit areas to help individuals in these roles.

 

 

Planning

A robust understanding of the group, its environment and internal controls is fundamental to planning and performing an effective group audit. To obtain that information, the group auditor needs to include component auditors in performing relevant activities.
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Logistics

The logistics of groups audits can be challenging, particularly when budgets are tight. They often involve different countries, laws and regulations, cultures, time zones and languages. Group audits can be performed by a single office, multiple offices within the same firm or multiple firms in the same network. Read more

Execution

The group auditor’s risk-based determination of the nature, timing and extent of work to be performed at each component – based on their relative importance to the group financial statements – directly informs the audit approach. The higher the risk associated with a component, the more audit work will be needed. Read more

 

 

 

Documentation

Audit files should demonstrate that sufficient appropriate audit evidence has been obtained, explaining the evaluation processes and the judgements reached. They should document any significant restrictions and how those were addressed. Read more

Completion and reporting

Component auditors report on their work to the group auditor in the format agreed and documented in the group audit instructions. In practice, the reporting format is negotiable to an extent. Read more

Specific challenges

Areas that pose particular challenges are considered, including non-coterminous year-ends, aligning inconsistent accounting policies, letterbox companies and subsidiary audit exemption. Read more

Illustrative reports to the group auditor

Three templates are included for general informational and illustrative purposes. Read more

 

More insights and analysis

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The changing nature of group audits

Gain insights from auditors on key ISA 600 revisions, changes of emphasis and focus, plus good practices for group and component auditors.

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Reminders on group audit

Key issues for group and component auditors in the revised ISA 600, opportunities to improve audit work on consolidation and financial reporting, and small audit firm considerations.

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ISA 600: what's changing?

This webinar shares some practical insights on changes introduced by ISA (UK) 600 (Revised) and how it affects you.

Listen to the recording

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Preparing an audit report for a group

This guide is designed to explain the main changes that are needed to the audit report of a group compared to that of a company only. It does not seek to explain every difference, just the key areas to consider as a result of the differing legal and regulatory requirements.

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