## SA 450: Evaluation of Misstatements Identified During Audit
### Objective of the Auditor (SA 450)
To evaluate:
1. The effect of identified misstatements on the audit.
2. The effect of uncorrected misstatements on the financial statements.
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### Step 1 — Accumulation of Misstatements
| Type | Description | Action |
|---|---|---|
| Clearly Trivial | Very small; obviously immaterial in any context | Ignore — do not accumulate |
| Not Clearly Trivial | Everything else — even if individually small | Accumulate as audit progresses |
> The auditor sets a threshold below which misstatements are considered clearly trivial. This must be documented.
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### Step 2 — Consideration as Audit Progresses
As misstatements accumulate, the auditor assesses whether the audit plan and audit strategy need revision, based on:
i) Nature and Circumstances of Misstatements
- Do they indicate that other misstatements may exist?
- Could they, when aggregated with other misstatements, become material?
ii) Aggregate of Accumulated Misstatements
- If approaching materiality → auditor must re-examine and ask management to correct misstatements (based on identified or projected errors).
- After corrections → verify no material misstatement remains.
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### Step 3 — Communication and Correction of Misstatements
- Communicate misstatements to management on a timely basis.
- Request correction of all identified misstatements.
- If management refuses to correct → auditor must understand the reasons.
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### Step 4 — Evaluating Uncorrected Misstatements
Before evaluating, reconsider whether materiality is still appropriate for the engagement.
The auditor determines whether uncorrected misstatements are material, considering:
| Factor | Description |
|---|---|
| Size | Quantitative amount of the misstatement |
| Nature | Qualitative character (e.g., intentional, fraud-related, related to an estimate) |
| Circumstances of Occurrence | Context in which the misstatement arose |
| Prior Period Effect | Effect of uncorrected misstatements from prior periods carrying forward |
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### Step 5 — Communication with TCWG
- Mandatory: Communicate all uncorrected misstatements and their potential impact on the Auditor's Opinion.
- Request TCWG to ensure correction.
- Communicate the effect of uncorrected misstatements of prior periods.
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### Step 6 — Written Representation (WIR) from Management and TCWG
The auditor obtains a Written Representation confirming that management (and TCWG) believe the effect of uncorrected misstatements is immaterial.
The summary of uncorrected misstatements is included in or attached to the WIR.
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### Documentation Requirements
The auditor must document:
1. The amount below which misstatements are considered clearly trivial.
2. All accumulated misstatements — and whether each was corrected or not.
3. The auditor's conclusion on whether uncorrected misstatements are material, and the basis for that conclusion.