An auditor evaluating a payroll test, an appraisal, and a subsidiary audit faces three different decisions about using another person's work. The person's relationship to the engagement determines the applicable suitability requirements and the auditor's required involvement.
A nonissuer engagement follows the applicable auditing standards for entities outside the issuer regime, including requirements for using a component auditor. An issuer engagement follows Public Company Accounting Oversight Board (PCAOB) standards, with additional securities-law requirements affecting independence and participating audit firms.
The six roles differ as follows:
The auditor first identifies whether the proposed contribution supplies entity-produced evidence, performs audit procedures, or provides a separate audit. A job title alone cannot establish whether specialist, internal audit, or other-auditor requirements govern the assignment.
For an auditor's specialist, competence concerns relevant knowledge and skill, while capabilities concern the practical ability to deliver appropriate work using available time, resources, and access. Credentials support these assessments but cannot establish experience with a particular system, valuation method, industry, or reporting framework.
Common mistakes
- Title controls classification. Calling an access-control tester a specialist does not change the accounting or auditing substance of the assigned work.
- Credentials replace evaluation. A licensed appraiser's expired-lease assumption still requires correction or additional evidence before the valuation can support the audit.
- Review cures unsuitable personnel. Reviewing all worksheets and independently testing 6 of the 24 checks in Example 2 cannot restore the objectivity missing from the proposed assignment.
Bottom line
- Classify work by its purpose and relationship to the engagement before selecting suitability and supervision requirements.
- Internal audit use requires appropriate competence and objectivity, with a disciplined approach required for using a nonissuer function's work.
- Completed internal audit work and direct assistance require different evaluation procedures, and significant audit judgments remain with the external auditor.
- IT audit expertise within accounting or auditing does not automatically fall under the auditor's specialist standard.
Exam shortcut
Start with who commissioned the work and what it accomplishes. Then identify the regime before evaluating credentials or percentages. In a suitability exhibit, match each favorable claim to evidence. A charter, license, or signature cannot answer a question about actual reporting lines, relevant experience, or unsupported assumptions. For paired scenarios, isolate the single changed fact.
The full lesson (about 6,307 words, 42 min read) adds 2 worked examples, all 6 common mistakes, a self-check, free in the app.
Learning objectives
- II.F1
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