Meaning
Inventory accounting method assumes that physical units produced or purchased first are sold or consumed first in operational cost accounting. Financial managers apply fifo to align inventory cost flows with actual physical movement of goods through production and sales channels. Accounting standards allow companies to value inventory and calculate cost of goods sold using the first-in, first-out convention.
Under fifo, older inventory costs enter cost of goods sold on the income statement, while recent purchase costs remain in ending inventory on the balance sheet. The method applies to inventory valuation across manufacturing and retail operations, ending where specific unit identification or weighted average cost methods are formally elected.
Cost Flow Assumption
Physical inventory management often mirrors fifo cost accounting by shipping older raw materials and finished goods first to prevent material expiration or physical damage. Manufacturing plants handling perishable materials or high-tech components rely on chronological stock rotation. Cost flow reporting under fifo matches current revenues against older purchase prices.
Inventory Valuation
During periods of rising material prices, fifo reports lower cost of goods sold and higher net operating income because older, cheaper inventory clears first. The balance sheet reflects inventory values that closely approximate current market prices. FIFO increases income tax liabilities during inflationary cycles due to higher reported net profits.
Inflationary Impact
When raw material prices rise rapidly, reported profit margins expand temporarily because input costs lag behind market prices.
