## External Confirmations — SA 505
### What Is an External Confirmation?
External confirmation is audit evidence obtained as a direct written response to the auditor from a third party (the confirming party), in paper or electronic form.
It is a key procedure for confirming trade receivables, trade payables, bank balances, loans, and other balances.
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### Types of Confirmation Requests
#### 1. Positive Confirmation Request
> A request that the confirming party respond directly to the auditor whether or not they agree with the information in the request, or providing the requested information.
- Silence = problem: Non-response must be followed up.
- More persuasive audit evidence.
- Used when individual balances are large, the risk of misstatement is higher, or there is reason to doubt internal evidence.
Two sub-types of positive confirmation:
- Blank positive — the auditor asks the party to fill in the balance (more rigorous; no anchoring bias)
- Non-blank positive — the auditor states the balance and asks the party to confirm or dispute
#### 2. Negative Confirmation Request
> A request that the confirming party respond only if they disagree with the information in the request.
- Silence = presumed agreement (but this presumption is weak — party may not have received the request)
- Less persuasive audit evidence than positive confirmations
- Used when risk is low and balances are numerous and small
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### Conditions to Use Negative Confirmation as the SOLE Substantive Procedure
All four conditions must be present simultaneously:
| # | Condition |
|---|---|
| 1 | Assessed risk of material misstatement at assertion level is low, and sufficient appropriate evidence on operating effectiveness of controls has been obtained |
| 2 | Population consists of a large number of small, homogeneous balances/transactions |
| 3 | A very low exception rate is expected |
| 4 | Auditor is not aware of circumstances that would cause recipients to disregard such requests |
> Memory aid for 4 conditions: L-H-E-D (Low risk, Homogeneous/large population, Expected low exceptions, Disregard risk absent)
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### Exception in Confirmation Responses
Exception = A response that indicates a difference between:
- The information in the entity's records / the amount requested to be confirmed, AND
- The information provided by the confirming party
When an exception is received:
1. Investigate and understand the reason for the difference (timing, errors, disputes)
2. Ask management to reconcile the discrepancy
3. Assess whether the exception indicates a wider population-level misstatement
4. Determine whether further audit procedures are needed (per SA 330)
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### When Management Refuses to Allow Confirmation Requests
If management refuses to permit the auditor to send external confirmation requests:
- The auditor must inquire into management's reasons and seek evidence on their validity.
- The auditor must evaluate the implications for risk assessment and other procedures.
- The auditor must perform alternative procedures to obtain sufficient appropriate evidence.
- If the auditor concludes the refusal is unreasonable or cannot obtain sufficient evidence, the auditor must communicate with those charged with governance and consider the impact on the audit report.