Professional scepticism and professional judgement are closely linked concepts, and both are required in planning and performing audit engagements
Professional scepticism should be exercised throughout the audit, and the use of professional scepticsm should be documented in the audit work papers
Professional scepticism is a necessary in supporting high-quality professional judgement and audit quality
Aspects of an audit where professional scepticism is particularly important
Evaluating accounting estimates
Fraud - for example when considering the possibility of management override of controls
Going concern – for example when evaluating management's plans for future actions in relation to its going concern assumption and whether these plans are feasible
Related party relationships and transactions – for example when remaining alert for information that may indicate previously unidentiØed or undisclosed related party relationships or transactions
Consideration of laws and regulations
Auditing signiØcant unusual or highly complex transactions
Evaluating the assumptions, methodologies and outputs of AI tools to focus on the risks related to AI such as overreliance and bias
Characteristics of professional scepticism
Inquiring mind (R120.5 of the Code of Ethics for Professional Accountants)
Questioning mind
Suspension of judgement
Search for knowledge
Interpersonal understanding
Autonomy
Audit evidence contradicts other audit evidence obtained
Could indicate fraud
Information brings into question the reliability of documents and responses to enquiries to be used as audit evidence
Could indicate inaccurate reporting
Conditions that may indicate fraud
Journals posted and approved by the same person
Circumstances suggest the need for audit procedures beyond those required by auditing standards
Engage a specialist to assess management's accounting position paper