A distributor's year-end inventory shows $14.2 million on the balance sheet. The auditor walks the warehouse and reconciles to the perpetual records. Two months later, three million dollars of "in-transit" goods turn out to be a phantom shipment that was never received. The question is not whether you "missed the fraud", it is whether you obtained sufficient appropriate evidence about existence, completeness, valuation, and rights.
HIGH-FREQUENCY: AU-C 501 requires the auditor to obtain sufficient appropriate audit evidence about the existence and condition of inventory by attending the physical inventory counting when inventory is material. Three obligations during attendance: evaluate management's count instructions, observe the performance of count procedures, and inspect inventory while performing test counts.
If attendance is impracticable (remote location, hazardous conditions), the auditor performs alternative procedures. Mere inconvenience is not impracticability. If alternative procedures cannot provide sufficient evidence, the auditor modifies the opinion (qualified or disclaimer for scope limitation).
KEY: "Material" is the trigger. Once material, attendance is the rule. Strong perpetual controls reduce the extent of work but do not eliminate the requirement to attend.
Common mistakes
- Treating attendance as optional when controls are strong. AU-C 501 requires attendance for material inventory regardless of perpetual-system quality. Strong controls reduce the extent of work, not the requirement to attend. The exam offers "the auditor relied on the strong perpetual system and did not attend" as a trap.
- Performing test counts in only one direction. Floor-to-sheet alone tests completeness; sheet-to-floor alone tests existence. The exam asks "the auditor selects items from the inventory listing and locates them in the warehouse: which assertion is tested?" The answer is existence. The reverse direction tests completeness. Doing one direction covers one assertion.
- Confusing physical possession with ownership. Goods in your client's warehouse may not be the client's (consigned in). Goods elsewhere may be the client's (consigned out, FOB shipping point in transit, or stored at a public warehouse). Trace title through shipping terms and consignment agreements, not floor location.
Bottom line
- AU-C 501 requires attendance at the physical count when inventory is material, unless attendance is impracticable
- During the count: observe procedures, perform test counts in both directions (floor-to-sheet and sheet-to-floor), inspect condition, control tag numbers, note cutoff information
- Third-party inventory requires direct confirmation with the custodian, plus physical inspection or other procedures when risk is significant
- Cutoff testing uses receiving and shipping records around year-end; FOB terms, not physical location, determine title
Exam shortcut
When the auditor selects items and traces in a specific direction, map the cue: floor-to-sheet = completeness, sheet-to-floor = existence. When goods are at a third party, the default is confirmation, with inspection added when risk or amount is significant. When pricing comes up, ask the cost flow method first: LIFO or retail = LCM with ceiling and floor, everything else = LCNRV.
The full lesson (about 2,172 words, 14 min read) adds 1 worked example, all 5 common mistakes, a self-check, free in the app.
Learning objectives
- III.E3
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