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Post navigationExternal auditors' reliance on work performed by internal audit function: Meeting the requirements of the External Audit function represented by the public accounting firm This document has been prepared to be used as a guideline for the entities that have an Internal Audit function and intend to increase the efficiency of their audits by having the work performed internally leveraged by their External Audit engagement teams. Why - If there is a spotlight on improving the efficiency of the audit-related processes, having External Auditors place (place more) reliance on the work performed internally will significantly lower the costs associated with the regulatory compliance attestation efforts. How much reliance can be placed - up to 100% reliance on Internal Audit’s work for non-public clients and 50-70% is what we normally see for public clients. The extent of the reliance external auditors can place on the work performed by others is determined by:
COMPETENCY OF THE INTERNAL AUDIT FUNCTION
OBJECTIVITY OF THE INTERNAL AUDIT FUNCTION:
Note: There is more emphasis now on a sufficient level of independent corporate governance and seeing audit committees act as more independent, effective managers of a company's external and internal auditors.
Note: Internal audit should play a very significant but advisory role in the compliance project. ADEQUACY OF THE AUDIT SCOPE: As part of the assessment of the adequacy of the scope defined by the Internal Audit function, external auditors evaluate factors listed below:
Note: The External Audit function represented by the public accounting firm will have their set of criteria to determine any significant areas of organization operations/ key internal control processes. If organization intends to increase the efficiency of the audit by having the work performed by the Internal Audit function leveraged by the External Audit engagement teams, it is essential to work with External Auditor to ensure you agree with their scoping and cover the same areas internally. PERIOD OF AUDIT COVERAGE: External Audit engagement team will have to ensure that the period/timeframe assessed by the Internal Audit’s testing procedures is adequately aligned with the period under review:
What should external auditors consider when deciding whether to rely on the work of internal auditors?As a starting point the external auditor should consider the amount of judgment needed in (i) planning and performing relevant audit procedures and (ii) evaluating audit evidence gathered. The greater the level of judgment required, the narrower the scope of work that can be assigned to internal auditors.
What factors do external auditors generally consider before determining whether the work of the internal audit function can be relied upon for the purposes of the audit?It was found that all three factors affected external auditors' reliance judgment. There were significant interactions between “objectivity” and “competence”, between “objectivity” and “work performed” and three way interactions among those factors.
What are the areas that need to be considered by external auditor before reliance can be placed on internal auditors work?The findings of the study indicate that technical competence and scope of function are the two most important criteria that external auditors consider in their reliance on internal auditors.
What are the factors to consider before implementing an internal audit function?5 critical success factors when implementing an audit management system. Define success. ... . Prioritize your needs and wants. ... . Identify and document your desired business processes. ... . Ensure you have the right stakeholders with the right skills—and the right authority. ... . Communicate, communicate, communicate!. |