Final answer:
Choosing between re-performing a client's account reconciliation and inspecting documentation depends on the assurance needed, risk of misstatement, quality of client documentation, and historical errors. Re-performance is more direct and reliable but also more time-consuming compared to documentation inspection.
Step-by-step explanation:
When planning to test a client's account reconciliation, the choice between re-performing the reconciliation and inspecting documentation depends on several factors. Re-performance might be chosen over documentation inspection if there's a need for higher assurance, when the risk of material misstatement is deemed to be high, or when the documentation provided by the client is not sufficiently detailed or objective. Moreover, if there's a history of errors in the client's accounting processes or discrepancies noted in previous audits, an auditor might opt for re-performance to verify the accuracy of the current reconciliation process.
Re-performance provides the auditor with first-hand evidence regarding the effectiveness of the client's internal controls and the accuracy of their account reconciliation. It is a more direct and often a more reliable method of testing than examining documentation, which could be incomplete or misleading. However, it is also more time-consuming and costly. In contrast, inspecting documentation can be efficient and effective when the internal controls environment is strong, and no significant issues have arisen in the past.