Part of Audit Performed by Other Independent Auditors
Issue date, unless otherwise indicated: November, 1972.
This section provides guidance on the professional judgments the independent auditor makes in deciding (a ) whether he may serve as principal auditor and use the work and reports of other independent auditors who have audited the financial statements of one or more subsidiaries, divisions, branches, components, or investments included in the financial statements presented and (b ) the form and content of the principal auditor's report in these circumstances. fn 1 Nothing in this section should be construed to require or imply that an auditor, in deciding whether he may properly serve as principal auditor without himself auditing particular subsidiaries, divisions, branches, components, or investments of his client, should make that decision on any basis other than his judgment regarding the professional considerations as discussed in paragraphs .02 and .10; nor should an auditor state or imply that a report that makes reference to another auditor is inferior in professional standing to a report without such a reference. [As modified, September 1981, by the Auditing Standards Board.]
[The following note is effective for audits of fiscal years ending on or after November 15, 2007. See PCAOB Release 2007-005A. For audits of fiscal years ending before November 15, 2007, click here .]
Note: When performing an integrated audit of financial statements and internal control over financial reporting, refer to paragraphs C8-C11 of Appendix C, Special Reporting Situations. of PCAOB Auditing Standard No. 5. An Audit of Internal Control Over Financial Reporting That Is Integrated with An Audit of Financial Statements. which provide direction with respect to opinions based, in part, on the report of another auditor in an audit of internal control over financial reporting.
[The following note is effective for audits of fiscal years beginning on or after December 15, 2010. See PCAOB Release No. 2010-004 .]
Note: For situations in which the auditor engages an accounting firm or individual accountants to participate in the audit engagement and AU sec. 543 does not apply, the auditor should supervise them in accordance with the requirements of Auditing Standard No. 10, Supervision of the Audit Engagement .
Principal Auditor's Course of Action
The auditor considering whether he may serve as principal auditor may have performed all but a relatively minor portion of the work, or significant parts of the audit may have been performed by other auditors. In the latter case, he must decide whether his own participation is sufficient to enable him to serve as the principal auditor and to report as such on the financial statements. In deciding this question, the auditor should consider, among other things, the materiality of the portion of the financial statements he has audited in comparison with the portion audited by other auditors, the extent of his knowledge of the overall financial statements, and the importance of the components he audited in relation to the enterprise as a whole. [As modified, September 1981, by the Auditing Standards Board.]
If the auditor decides that it is appropriate for him to serve as the principal auditor, he must then decide whether to make reference in his report fn 2 to the audit performed by another auditor. If the principal auditor decides to assume responsibility for the work of the other auditor insofar as that work relates to the principal auditor's expression of an opinion on the financial statements taken as a whole, no reference should be made to the other auditor's work or report. On the other hand, if the principal auditor decides not to assume that responsibility, his report should make reference to the audit of the other auditor and should indicate clearly the division of responsibility between himself and the other auditor in expressing his opinion on the financial statements. Regardless of the principal auditor's decision, the other auditor remains responsible for the performance of his own work and for his own report.
Decision Not to Make Reference
If the principal auditor is able to satisfy himself as to the independence and professional reputation of the other auditor (see paragraph .10) and takes steps he considers appropriate to satisfy himself as to the audit performed by the other auditor (see paragraph .12), he may be able to express an opinion on the financial statements taken as a whole without making reference in his report to the audit of the other auditor. If the principal auditor decides to take this position, he should not state in his report that part of the audit was made by another auditor because to do so may cause a reader to misinterpret the degree of responsibility being assumed.
Ordinarily, the principal auditor would be able to adopt this position when:
- Part of the audit is performed by another independent auditor which is an associated or correspondent firm and whose work is acceptable to the principal auditor based on his knowledge of the professional standards and competence of that firm; or
- The other auditor was retained by the principal auditor and the work was performed under the principal auditor's guidance and control; or
- The principal auditor, whether or not he selected the other auditor, nevertheless takes steps he considers necessary to satisfy himself as to the audit performed by the other auditor and accordingly is satisfied as to the reasonableness of the accounts
for the purpose of inclusion in the financial statements on which he is expressing his opinion; or
- The portion of the financial statements audited by the other auditor is not material to the financial statements covered by the principal auditor's opinion.
Decision to Make Reference
On the other hand, the principal auditor may decide to make reference to the audit of the other auditor when he expresses his opinion on the financial statements. In some situations, it may be impracticable for the principal auditor to review the other auditor's work or to use other procedures which in the judgment of the principal auditor would be necessary for him to satisfy himself as to the audit performed by the other auditor. Also, if the financial statements of a component audited by another auditor are material in relation to the total, the principal auditor may decide, regardless of any other considerations, to make reference in his report to the audit of the other auditor.
When the principal auditor decides that he will make reference to the audit of the other auditor, his report should indicate clearly, in both the introductory, scope and opinion paragraphs, the division of responsibility as between that portion of the financial statements covered by his own audit and that covered by the audit of the other auditor. The report should disclose the magnitude of the portion of the financial statements audited by the other auditor. This may be done by stating the dollar amounts or percentages of one or more of the following: total assets, total revenues, or other appropriate criteria, whichever most clearly reveals the portion of the financial statements audited by the other auditor. The other auditor may be named but only with his express permission and provided his report is presented together with that of the principal auditor. fn 3
Reference in the report of the principal auditor to the fact that part of the audit was made by another auditor is not to be construed as a qualification of the opinion but rather as an indication of the divided responsibility between the auditors who conducted the audits of various components of the overall financial statements. [As modified, September 1981, by the Auditing Standards Board.]
An example of appropriate reporting by the principal auditor indicating the division of responsibility when he makes reference to the audit of the other auditor follows:
Independent Auditor's Report
We have audited the consolidated balance sheet of X Company and subsidiaries as of December 31, 20. and the related consolidated statements of income and retained earnings and cash flows for the year then ended. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits. We did not audit the financial statements of B Company, a wholly-owned subsidiary, which statements reflect total assets and revenues constituting 20 percent and 22 percent, respectively, of the related consolidated totals. Those statements were audited by other auditors whose report has been furnished to us, and our opinion, insofar as it relates to the amounts included for B Company, is based solely on the report of the other auditors.
We conducted our audit in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit and the report of the other auditors provide a reasonable basis for our opinion.
In our opinion, based on our audit and the report of the other auditors, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of X Company as of [at] December 31, 20. and the results of its operations and its cash flows for the year then ended in conformity with accounting principles generally accepted in the United States of America.
When two or more auditors in addition to the principal auditor participate in the audit, the percentages covered by the other auditors may be stated in the aggregate. [Revised, April 1998, to reflect conforming changes necessary due to the issuance of Statement on Auditing Standards Nos. 53 through 62. Revised, October 2000, to reflect conforming changes necessary due to the issuance of Statement on Auditing Standards No. 93.]
Procedures Applicable to Both Methods of Reporting
Whether or not the principal auditor decides to make reference to the audit of the other auditor, he should make inquiries concerning the professional reputation and independence of the other auditor. He also should adopt appropriate measures to assure the coordination of his activities with those of the other auditor in order to achieve a proper review of matters affecting the consolidating or combining of accounts in the financial statements. These inquiries and other measures may include procedures such as the following:
- Make inquiries as to the professional reputation and standing of the other auditor to one or more of the following: