13. The principal auditor might discuss with the other auditor the audit procedures applied or review a written summary of the other auditor’s procedures and findings which may be in the form of a completed questionnaire or check-list. The principal auditor may also wish to visit the other auditor. The nature, timing and extent of procedures will depend on the circumstances of the engagement and the principal auditor's knowledge of the professional competence of the other auditor. This knowledge may have been enhanced from the review of the previous audit work of the other auditor.
14. The principal auditor may conclude that it is not necessary to apply procedures such as those described in paragraph 13 because sufficient appropriate audit evidence previously obtained that acceptable quality control policies and procedures are complied with in the conduct of other auditor's practice.
15. The principal auditor should consider the significant findings of the other auditor.
16. The principal auditor may consider it appropriate to discuss with the other auditor and the management of the component, the audit findings or other matters affecting the financial information of the components. He may also decide that supplemental tests of the records or the financial statements of the component are necessary. Such tests may, depending upon the circumstances, be performed by the principal auditor or the other auditor.
17. In certain circumstances, the other auditor may happen to be a person other than a professionally qualified auditor. This may happen, for instance, where a component is situated in a foreign country and the applicable laws permit a person other than a professionally qualified auditor to audit the financial statements of such component. In such circumstances, the procedures outlined in paragraphs 10 to 16 assume added importance.
18. The principal auditor should document in his working papers the components whose financial information was audited by other auditors; their significance to the financial information of the entity as a whole; the names of the other auditors; and any conclusions reached that individual components are not material. The principal auditor should also document the procedures performed and the conclusions reached. For example, the auditor would document the results of discussions with the other auditor and review of the written summary of the other auditor's procedures. However, the principal auditor need not document the reasons for limiting the procedures in the circumstances described at 14 above, provided those reasons are summarised elsewhere in the documentation maintained by the principal auditor. Where the other auditor’s report is other than unmodified3, the principal auditor should also document how he has dealt with the qualifications or adverse remarks contained in the other auditor’s report in framing his own report.
Co-ordination Between Auditors
19. There should be sufficient liaison between the principal auditor and the other auditor. For this purpose, the principal auditor may find it necessary to issue written communication(s) to the other auditor.
20. The other auditor, knowing the context in which his work is to be used by the principal auditor, should co-ordinate with the principal auditor. For example, by bringing to the principal auditor’s immediate attention any significant findings requiring to be dealt with at entity level, adhering to the time-table for audit of the component, etc. He should ensure compliance with the relevant statutory requirements. Similarly, the principal auditor should advise the other auditor of any matters that come to his attention that he thinks may have an important bearing on the other auditor’s work.
21. When considered necessary by him, the principal auditor may require the other auditor to answer a detailed questionnaire regarding matters on which the principal auditor requires information for discharging his duties. The other auditor should respond to such questionnaire on a timely basis.
22. When the principal auditor concludes, based on his procedures, that the work of the other auditor cannot be used and the principal auditor has not been able to perform sufficient additional procedures regarding the financial information of the component audited by the other auditor, the principal auditor should express a qualified opinion or disclaimer of opinion because there is a limitation on the scope of audit. 3 SA 705(Revised), "Modifications to the Opinion in the Independent Auditor’s Report ", deals with the concept of "modified audit opinion".
23. In all circumstances, if the other auditor issues, or intends to issue, a modified auditor's report, the principal auditor should consider whether the subject of the modification is of such nature and significance, in relation to the financial information of the entity on which the principal auditor is reporting that it requires a modification of the principal auditor's report.
Division of Responsibility
24. The principal auditor would not be responsible in respect of the work entrusted to the other auditors, except in circumstances which should have aroused his suspicion about the reliability of the work performed by the other auditors.
25. When the principal auditor has to base his opinion on the financial information of the entity as a whole relying upon the statements and reports of the other auditors, his report should state clearly the division of responsibility for the financial information of the entity by indicating the extent to which the financial information of components audited by the other auditors have been included in the financial information of the entity, e.g., the number of divisions/branches/subsidiaries or other components audited by other auditors.
26. This Standard on Auditing becomes operative for all audits relating to accounting periods beginning on or after April 1, 2002.
Compatibility with International Standard on Auditing
(ISA)600 The auditing standards established in this Standard on Auditing (SA) are generally consistent, in all material respects, with those set out in ISA 600 "Using the Work of Another Auditor".
