Inventory is unique because it has characteristics of both transactions/events and account balances. Here's why:
Transaction/Event Aspects:
Inventory involves transactions like purchases and sales throughout the period
Movement of inventory (transfers, returns) represents events
Cost flows (FIFO, LIFO, weighted average) are tied to transactions
Account Balance Aspects:
Inventory is reported as an asset balance on the balance sheet
Physical inventory exists at a point in time
Valuation is assessed at the balance sheet date
Because of this dual nature, inventory-related assertions cover both categories:
Transaction/Event Assertions for Inventory:
Occurrence - All recorded inventory transactions took place
Completeness - All inventory transactions are recorded
Accuracy - Transactions are recorded at correct amounts
Cutoff - Transactions are recorded in the proper period
Balance Sheet Assertions for Inventory:
Existence - The Recorded inventory physically exists
Rights and Obligations - The Entity has rights to the inventory
Completeness - All existing inventory is recorded
Valuation - Inventory is recorded at proper amounts (including consideration of net realisable value, obsolescence)
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