## Using Work of Management's Expert — SA 500
### When Does This Arise?
An entity may engage or employ an expert (actuary, chartered engineer, valuer, etc.) to determine quantities, valuations, or technical estimates for financial statement preparation. The auditor may wish to rely on that expert's report as audit evidence.
> An expert engaged or employed by management is called a "management's expert" — distinct from the auditor's own expert.
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### Three-Step Auditor Obligation
Before using a management expert's work as audit evidence, the auditor shall (to the extent necessary, having regard to significance):
| Step | What the Auditor Does |
|---|---|
| 1. Evaluate Competence, Capabilities & Objectivity | Assess whether the expert has the skill, knowledge, and independence to produce reliable output |
| 2. Obtain Understanding of the Work | Understand what the expert did, what assumptions/methods were used, and what data was relied upon |
| 3. Evaluate Appropriateness of Output | Judge whether the expert's work constitutes sufficient appropriate audit evidence for the specific assertion being tested |
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### Step 1 in Detail — Competence, Capabilities & Objectivity
Key questions the auditor considers:
- Is the expert employed by the entity or an outside party? (Employed = higher risk of bias)
- Is the expert independent of the entity?
- What is the auditor's previous experience with this expert's work?
- Does the expert have appropriate qualifications, membership of a professional body, or industry association?
### Step 2 in Detail — Understanding the Work
- Does the auditor have the expertise to evaluate the expert's work, or does the auditor need their own expert?
- What assumptions and methods did management's expert use — are they reasonable?
- What nature of internal or external data did the expert rely upon — is it appropriate and accurate?
### Step 3 in Detail — Evaluating Appropriateness
- Does the expert's work address the specific assertion the auditor is trying to support?
- Is the evidence sufficient and appropriate for the auditor to form an opinion?
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### Common Exam Scenarios
| Scenario | Expert Type | Typical Assertion Tested |
|---|---|---|
| Gratuity provision | Actuary | Valuation/Accuracy |
| Quantity and valuation of inventory (petrochemical/mining) | Chartered Engineer | Existence, Valuation, Completeness |
| Fair value of property | Registered Valuer | Valuation |