Under new, risk-based standards, group auditors still face critical judgements about complex matters.
Group audits involve an audit of group financial statements, which are (a) financial statements that include the financial information of more than one component or (b) combined financial statements aggregating the financial information prepared by components that are under common control. The concept of group financial statements is broader than consolidated or combined financial statements because it encompasses business activities in addition to separate entities.
A group audit culminates in a single audit opinion, even though the underlying work may be carried out across multiple entities or multiple business units or functions of a single entity and by multiple audit firms. The financial statements may be consolidated, but the underlying evidence exists across entities and jurisdictions. In a group audit, the group auditor plans and performs the audit of the group financial statements and coordinates the work across the group.
A component auditor performs audit work on the financial information of a component included in the group financial statements and communicates the significant findings, risks, misstatements, and conclusions relevant to the group auditor. The group auditor remains responsible for directing, supervising, and reviewing the work performed and for obtaining sufficient appropriate evidence across the group as a basis for the opinion.
Even with the new risk-based auditing standards i.e. SAS 149, group audits continue to require meticulous coordination across multiple teams and the unwavering exercise of professional judgment to ensure no critical detail is overlooked.
Picture this. Company X (US) is the parent company, with subsidiaries in India (Company A), the UK (Company B), and China (Company C).
The group auditor of Company X issues the opinion on the group financial statements, even though component audit work is performed by auditors in India, the UK, and China.
SAS 149 requires the group engagement partner to be sufficiently and appropriately involved in the work of component auditors to evaluate significant judgments and conclusions given the nature and circumstances of the group audit engagement.
This requires visibility into how risks were identified and assessed at each component, how controls were evaluated, particularly in decentralized systems, how materiality was allocated and aggregation risk considered across the three subsidiaries, and how significant findings were communicated, addressed, and resolved before the group opinion was issued.
In practice, group audits can feel like an intertwined maze. In a group audit, the quality of the overall audit depends on effective coordination, supervision, and communication across all components. In practice, challenges in coordination and supervision across components can affect the quality of evidence obtained in a group audit.
Group audits present a mix of structured requirements and areas that demand professional judgment. Some challenges are addressed directly by standards or best practices, while others require auditors to apply critical thinking and experience. The following sections highlight both types of complexity.
Potential practical challenges in a group audit
Identification and scoping of components
Scoping is one of the most consequential judgments in a group audit. Determining the components at which audit procedures will be performed directly affects whether the group auditor will be able to obtain the evidence needed to address identified risks. Under extant AU-C 600 the group engagement team is required to identifysignificant components, which are components that are of individual financial significance to the group, or those that due to their nature or circumstances are likely to include significant risks of material misstatement of the group financial statements. However, the new standard, SAS No, 149, takes an explicitly risk-based approach. It expects the group auditor to use judgment to plan and perform audit procedures based on the assessed risk of material misstatement (RMM) at the group financial statement level. That approach can surface components that are small individually but, because of their centralized function/ activities or when aggregated with other components have a significant effect on the group financial statements. When such centralized activities are relevant to the group’s financial reporting process, the group auditor may determine that the shared service center is a component. For example, a small IT subsidiary handling centralized payroll for the entire group may warrant full-scope audit procedures, even if its financial size is small.
Determination of component performance materiality
In a group audit, materiality is considered at two related levels:
- Group performance materiality – Performance materiality in relation to the group financial statements as a whole, as determined by the group auditor.
- Component performance materiality – An amount set by the group auditor to reduce aggregation risk to an appropriately low level for purposes of planning and performing audit procedures in relation to a component.
Determination of component performance materiality is not a simple mechanical calculation and involve use of professional judgement. Components may differ significantly in size, profitability, volatility, and control maturity. Poor determination can result in insufficient attention to higher-risk components or disproportionate effort on low-risk areas, weakening audit effectiveness at the group level.
For example, consider Company Y, a relatively small component of the group that has reported losses in the current year. Because profit before tax is not a meaningful benchmark, the group auditor uses an alternative benchmark, such as revenue or total assets, in determining component performance materiality. However, applying the group’s usual materiality percentages to this alternative benchmark results in a relatively low component performance materiality. This, in turn, drives more extensive audit procedures at Company Y than might be expected given its limited quantitative effect on the group financial statements.
Accordingly, group performance materiality should be determined using professional judgment to ensure audit effort remains proportionate and aligned with group-level risk.
Additionally, aggregation risk needs to be considered when determining materiality. This risk arises when individually immaterial misstatements across components accumulate to a material misstatement at the group level. Because components are audited separately, this risk can be underestimated without deliberate aggregation analysis. Aggregation analysis is therefore critical to ensure that misstatements identified at different components are considered collectively, not just at the standalone component level.
For example, imagine a group with five subsidiaries. Each has a small, seemingly immaterial error in inventory valuation. Individually, these errors fall below the group’s performance materiality threshold of $80,000 and might be dismissed. However, when combined, the total error amounts to $100,000, exceeding the group’s threshold and potentially misstating the consolidated financial statements.
Risk assessment at group and component levels
Identifying and assessing risks of material misstatement at the group and component levels can be complex due to differences in components that include higher assessed risk, controls operating at the component level, and financial reporting frameworks. Inconsistent risk assessments by component auditors or insufficient understanding of group-wide controls may result in inappropriate scoping or audit responses.
The nature, timing, and extent of the group auditor’s direction, supervision, and review should reflect the assessed risks of material misstatement at the group level. Areas involving higher risk or significant judgment require greater involvement from the group engagement partner, including more detailed instructions to component auditors and a deeper review of their work. This helps the group auditor determine whether the significant judgments and conclusions reached at the component level are appropriate for the group financial statements.
There is a risk that certain component‑level significant risks may not be identified by the group auditor and, as a result, are not addressed in component audit procedures. Insufficient involvement in or oversight of component risk assessment may lead to gaps in audit coverage and inappropriate audit responses at the group level.
Supervision of component auditors
Group audits often rely heavily on work performed by component auditors. Effective supervision requires more than issuing instructions and reviewing component reporting package or memoranda. Limited involvement by the group auditor in planning, risk assessment, and execution increases the risk that component work does not adequately address group-level risks. To strengthen supervision, the group auditor should maintain communication at appropriate time throughout the group audit, involve key team members from component’s engagement team for planning discussions, and review key work papers to ensure group-level issues are addressed throughout the audit.
Differences in financial reporting frameworks and auditing standards
In cross-border group audits, component auditors may perform their work and report under local auditing standards (e.g., ISAs), which may differ from U.S GAAS. In addition, if the financial information of an entity or business unit has not been prepared in accordance with the same accounting policies applied to the group financial statements, the group auditor should evaluate whether the financial information has been appropriately adjusted for purposes of the preparation and fair presentation of the group financial statements in accordance with the applicable financial reporting framework. For example, the financial statements of the cross-border entity may be prepared in accordance with a local financial reporting framework (e.g., IFRS), which may differ from U.S. GAAP. These differences can lead to inconsistencies in audit documentation, risk assessments, and financial reporting.
For example, a foreign subsidiary may capitalize development costs under IFRS, while U.S. GAAP requires such costs to be expensed as incurred. If the group auditor does not identify this difference and request that management adjust for the difference, the consolidated financial statements could overstate assets and net income.
Further complexity arises when GAAP conversions are prepared by management within adequate knowledge of how the financial statements should be adjusted and without consulting component auditors who may be more knowledgeable about local financial reporting frameworks. These adjustments may receive less scrutiny than balances and transactions audited by component auditors as part of their audit procedures, increasing the risk of undetected errors or omissions.
To address these challenges, the group auditor should:
- Independently evaluate the appropriateness, completeness, and accuracy of consolidation adjustments and reclassifications (conversion entries), rather than relying solely on management’s process.
- Evaluate whether the component auditor’s procedures under local auditing standards enable the group auditor to obtain sufficient assurance for group reporting purposes.
- When local auditing standards differ significantly from U.S. GAAS, design and perform further audit procedures to respond to the assessed risks of material misstatement of the group financial statements arising from the consolidation process or when documentation is insufficient.
These steps help ensure that the group auditor’s opinion is based on an audit performed on group financial statements that are prepared in accordance with a consistent reporting framework across all components.
Consolidation and top-side adjustments
Consolidation often involves top-side and central adjustments i.e. consolidation entries recorded at group level outside component ledgers, that bypass component-level controls. These entries are frequently recorded late in the financial reporting and consolidation process cycle and involve significant judgment, increasing the risk of error or management override. Late consolidation adjustments often involve significant judgment and may bypass component‑level controls. In response, the group auditor’s involvement in evaluating such adjustments is tailored based on the assessed risks of material misstatement, which may include performing focused procedures to evaluate whether those adjustments are appropriate and free from material error or management bias.
Financial reporting and close process realities
Group audits are affected by practical challenges such as multiple versions of group financial statements, last-minute adjustments, and misalignment between subsidiary accounting and group consolidation, which increases the risk of material misstatement. As a result, effective group audits implement rigorous final review procedures (e.g., checklists and version control processes) to help identify late changes and assess consistency between component and consolidated financial information.
Intercompany transactions and eliminations
Large groups often have extensive intercompany activity involving multiple currencies and systems. Ensuring completeness and accuracy of eliminations is difficult when transactions are recorded inconsistently or reconciliations are weak. Group auditors may need to perform additional procedures and encourage on standardized intercompany reconciliation processes to mitigate this risk.
Subsequent events across geographies
Obtaining timely and complete information on subsequent events across all components through the date of the group auditor’s report is operationally challenging. Reporting delays increase the risk of incomplete information. Establishing clear communication protocols (such as requiring timely subsequent-events memos from all component auditors) and setting earlier internal cut-off dates can help ensure significant events are identified and evaluated before the group audit report is issued.
Language and cultural barriers
Language differences and cultural nuances can affect the clarity of communication, the escalation of issues, and the exercise of professional skepticism by component auditors. For example, component financial statements, key component schedules, or explanations may be prepared in a local language, requiring translation. This can create practical challenges for the group auditor in fully understanding issues, assessing judgmental areas, and determining whether matters have been appropriately escalated or critically evaluated. To mitigate this, group audit teams can assign bilingual staff or translators and encourage open dialogue to ensure that language differences do not impede the understanding of critical issues.
Skill and mindset
At the core of every audit lies professional judgment and skepticism. Standards articulate objectives, requirements and application guidance, but they do not replace the auditor’s responsibility to think critically about risk, evidence, and reasonableness. In a group audit, judgments made at one component may influence conclusions elsewhere and matters that appear immaterial in isolation may become significant in aggregate.
Strong group audits are characterized by disciplined judgment. The group auditor maintains a clear line of sight to where risk originates, how it moves through the group, and how it ultimately affects the group financial statements. Skepticism is applied not only to numbers, but to processes, explanations, and patterns. Overall, engagement coordination, review and supervision, and professional judgement is critical.
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Navneet Sharma, CPA, is a Partner at KNAV Advisory Inc. with over 13 years’ experience in audits, technical accounting, and SEC reporting. He advises clients across sectors on complex U.S. GAAP matters and serves on the AICPA’s Accounting and Review Services Committee.
KNAV is a global accounting and advisory firm providing assurance and technical accounting services to private and public companies. With offices across North America, Europe, and Asia, KNAV supports clients in sectors such as manufacturing, technology, and financial services. The firm specializes in U.S. GAAP, IFRS, and SEC reporting, helping businesses navigate complex financial and compliance challenges.
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