The external audit of an entity’s financial statements is by far the most common type of audit engagement, yet the importance attached to an external audit rests above all. the external auditor has the responsibility towards not only the management of the organization but also the external and internal users of the financial statements. it is this fiduciary responsibility, which requires the auditor to be diligent in the performance of his duties as an external auditor. the recent national and international advancements in the field of auditing requires the auditor to be careful in assessing as to which procedures and to what extent he has to perform in order to achieve the desired level of assurance, how he derives assurance from the work he has performed and whether the opinion he is to give is supported by the work he has performed.
Internal audits add value to the business by aiding the management in business decision-making. it serves as a management tool in checking compliance with the policies and procedures and management directives. it also serves the management in assessing the soundness of the systems and procedures and indicates areas where the policies and procedures need revision.