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Limitations of internal control

Internal control has inherent limitations, including human error, collusion, management override and cost constraints. Well-designed controls provide reasonable, not absolute, assurance that objectives are achieved. The auditor considers these limitations when assessing risk and designing responses.

Worked example

Two employees collude to approve a fictitious supplier despite a control intended to separate responsibilities.

Common mistake

Do not conclude that documented controls eliminate every possibility of fraud or error.

Where it appears in your exams

QualificationExamRelationshipPeriod
ACCA AA Supporting September 2026–June 2027