As inventory costs expire, what expense does it turn into?

When inventory costs expire, they are recognized as an expense through the Cost of Goods Sold (COGS) account. This is consistent with the matching principle in accounting, which dictates that expenses should be recognized in the same period as the revenues they help to generate.

As inventory is sold, its associated costs are transferred from the balance sheet (where inventory is recorded) to the income statement, ultimately impacting the gross profit of the company. COGS reflects the direct costs attributable to the goods that were sold during a specific period, which is essential for accurately calculating profitability.

In contrast, the other choices do not align with the standard accounting treatment of inventory costs. Inventory Expense is not a recognized standard term in accounting; typically, inventory is recorded as an asset until sold. Operating Expenses refer to costs related to the day-to-day functions of a business but do not specifically account for inventory costs. Materials Expense is also not a standard term in inventory accounting, and may not capture the full nature of costs relating to goods sold. Thus, the conversion of expired inventory costs into Cost of Goods Sold accurately reflects the flow of costs in the accounting system.