审计是对数据作出证据搜集及分析，以评估企业财务状况，然后就数据及一般公认准则之间的相关程度作出结论及报告。进行审计的人员必需有独立性及具相关专业知识。常见的财务审计有以下四种：

Auditing refers to a systematic and independent examination of books, accounts, documents and vouchers of an organization to ascertain how far the financial statements present a true and fair view of the concern. It also attempts to ensure that the books of accounts are properly maintained by the concern as required by law. Auditing has become such a ubiquitous phenomenon in the corporate and the public sector that academics started identifying an "Audit Society". The auditor perceives and recognizes the propositions before him/her for examination, obtains evidence, evaluates the same and formulates an opinion on the basis of his judgement which is communicated through his audit report.