General Evaluation of Internal Audit Function

The external auditor’s general evaluation of the internal audit function will assist him in determining the extent to which he can place reliance upon the work of the internal auditor. The external auditor should document his evaluation and conclusions in this respect. The important aspects to be considered in this context are :

  1.  Organisational Status : Whether internal audit is undertaken by an outside agency or by an internal audit department within the entity itself, the internal auditor reports to the management. In an ideal situation he reports to the highest level of management and is free of any other operating responsibility. Any constraints or restrictions placed upon his work by management should be carefully evaluated. In particular, the internal auditor should be free to communicate fully with the external auditor.
  2.  Scope of Function : The external auditor should ascertain the nature and depth of coverage of the assignment which the internal auditor discharges for management. He should also ascertain to what extent the management considers, and where appropriate, acts upon internal audit recommendations.
  3.  Technical Competence : The external auditor should ascertain that internal audit work is performed by persons having adequate technical training and proficiency. This may be accomplished by reviewing the experience and professional qualifications of the persons undertaking the internal audit work.
  4. Due Professional Care : The external auditor should ascertain whether internal audit work appears to be properly planned, supervised, reviewed and documented. An example of the exercise of due professional care by the internal auditor is the existence of adequate audit manuals, audit programmes, and working papers.
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