WHY SHOULD AUDITING ADD VALUE?

Auditing is a necessary, expensive, time-consuming activity. So, why shouldn't an audit recover the cost of its performance and return more to an organization than it cost to perform? Costs associated with all audit organizations, whether an internal or external organization either in the private or governmental sector, consume valuable resources that could be used more effectively for other organizational initiatives. So instead of being simply a cost of doing business, why shouldn't audit be a means for adding value?