Term
Last-in, first-out (LIFO)
A BudgetBurrow glossary entry. Scroll down for a plain-English definition and related concepts.
A BudgetBurrow glossary entry. Scroll down for a plain-English definition and related concepts.
Last-in, first-out (LIFO) is an inventory valuation and cost flow assumption where the most recently acquired or produced items are considered sold or used first. This method directly affects the calculation of cost of goods sold and ending inventory values, especially when prices fluctuate. LIFO produces different financial outcomes compared to alternative inventory methods because it assumes inventory turnover in reverse chronological order.
LIFO emerged as a systematic response to the challenge of assigning accurate costs to inventory and related expenses in environments with changing prices. By matching current input costs to current revenue, LIFO was designed to reflect the impact of inflation on financial results and potentially reduce reported taxable profits during periods of rising costs. The approach addresses mismatches between the timing of inventory purchases and sales, which can distort profit and asset valuations.
When a business sells inventory, LIFO assumes the cost associated with the newest inventory units is recorded first as cost of goods sold, while older inventory costs remain on the balance sheet. As purchases are made at newer, often higher prices, these costs are recognized in financial results before older, possibly lower-cost inventory. This cost flow impacts both income statements (through expense recognition) and balance sheets (via remaining inventory value).
LIFO can be applied using different methods, such as the periodic LIFO approach (valuing inventory at set intervals, often at period end) or the perpetual LIFO approach (updating costs continuously with each transaction). Some sectors may also adopt specific LIFO pools—grouping similar inventory items to minimize cost fluctuations within categories. The conceptual framework remains, but the mechanics differ based on operational complexity and reporting needs.
LIFO becomes relevant for organizations managing substantial inventories facing frequent price changes, such as manufacturers, distributors, or retailers. It is strategically used during budgeting and profit planning, as it influences expense recognition and taxable income. In financial planning, companies may leverage LIFO to mitigate the impact of inflation on reported earnings or to optimize inventory-related tax positions.
A company holds 100 units of an item purchased at $10 each. Later, it purchases 100 more units at $12 each. If it sells 120 units, under LIFO, the cost assigned to those sold units is 100 units at $12 (the most recent) plus 20 units at $10, totaling a cost of goods sold of $1,440. The remaining inventory (80 units) is valued at the older $10 price, totaling $800.
LIFO directly determines reported profit, inventory values, and tax liabilities. Choosing LIFO in inflationary settings often results in lower taxable income but can reduce the accuracy of balance sheet inventory values. Companies face strategic trade-offs when selecting LIFO, as it affects stakeholder perceptions and compliance with financial reporting requirements.
Extended use of LIFO can create “LIFO reserves”—the disparity between LIFO inventory valuations and those under alternative methods—resulting in understated asset values. If an organization switches away from LIFO or liquidates old inventory layers (“LIFO liquidation”), previously deferred profits can surface suddenly, leading to sharp increases in reported income and tax obligations.