Advanced Auditing and Assurance
The spine of the syllabus
The examiner expects the audit process to be argued, not recited: ISA 315 (revised) risk identification and assessment, ISA 320 materiality, ISA 330 responses, ISA 500 evidence, ISA 570 going concern, ISA 600 group audits, ISA 701 key audit matters, ISA 705/706 modifications, plus ISQM 1 quality management and the IESBA-aligned code of ethics.
Concepts to hold firmly
Risk: understand the entity and its environment, including the IT environment and internal control, then identify significant risks - presumed fraud risk in revenue recognition and management override. Materiality: overall materiality plus performance materiality (usually 50–75% of overall) plus an obviously trivial threshold. Evidence: sufficiency (quantity) and appropriateness (relevance plus reliability); external evidence outranks internal; auditor-generated outranks client-generated. Going concern: assess management's assessment, challenge cash-flow forecasts, consider whether a material uncertainty exists and whether disclosure is adequate. Judgements: distinguish factual misstatement, judgemental misstatement and projected misstatement.
Traps that appear in questions
Performance materiality set equal to overall materiality. Classifying a scope limitation as a disagreement, or issuing an adverse opinion where a qualified opinion is required. Confusing an adjusting subsequent event (ISA 560) with a non-adjusting one. Treating reliance on the internal audit function as a substitute for the external auditor's own evidence. Forgetting that key audit matters are required only for listed entities. Missing that professional scepticism is a mindset, not a procedure.
Rule of thumb
Benchmark: 5% of profit before tax for profit-oriented entities, 1% of revenue or 1–2% of total assets where profit is volatile. Then apply 50–75% to derive performance materiality, and document the reasoning.