The objective of an audit of financial statements is to enable the auditor to express an opinion whether the financial statements are prepared, in all material respects, in accordance with an identified financial reporting framework. The phrase used to express the auditors opinion is give a true and fair view. A similar objective applies to the audit of financial or other information prepared in accordance with appropriate criteria.
In forming the audit opinion, the auditor obtains sufficient appropriate audit evidence to be able to draw conclusions on which to base that opinion.
The auditors opinion enhances the credibility of financial statements by providing a high, but not absolute, level of assurance. Absolute assurance in auditing is not attainable as a result of such factors as the need for judgement, the use of test checks, the inherent limitations of any accounting and internal control systems and the fact that most of the evidence available to the auditor is persuasive, rather than conclusive, in nature.