Definition
An unmodified opinion, sometimes called a clean opinion, is the result when the auditor concludes the financial statements are presented fairly, in all material respects, under the applicable financial reporting framework, and has obtained sufficient appropriate evidence. It is not a guarantee of accuracy or a statement about the entity's health. It speaks only to material misstatement in the statements.
Why it matters in an audit or review
Lenders, boards, and investors treat an unmodified opinion as the baseline. An unmodified opinion can still carry an emphasis-of-matter or other-matter paragraph without changing the opinion. The auditor reaches it only after evaluating uncorrected misstatements against materiality and confirming that evidence limits did not arise.
Example
Illustrative: an auditor finds a few unrecorded accruals that are not clearly trivial but are well below overall materiality in total. Management declines to book them, the auditor lists them on the summary of uncorrected misstatements, and the opinion stays unmodified.
Common mistakes
Reading 'clean' as 'error-free'. The opinion allows immaterial misstatements.
FAQ
Can an unmodified opinion include a going concern paragraph?
Yes. If substantial doubt remains but the disclosures are adequate, the opinion stays unmodified and the auditor includes an emphasis-of-matter paragraph.
Sources
- AICPA, AU-C Section 700, Forming an Opinion and Reporting on Financial Statements
- AICPA, AU-C Section 450, Evaluation of Misstatements Identified During the Audit
- AICPA, AU-C Section 570, The Auditor's Consideration of an Entity's Ability to Continue as a Going Concern
Definitions paraphrase AICPA and FASB guidance; read the standard itself before relying on a requirement. Example figures are illustrative. This page is guidance, not professional advice. Report an error