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FIFO/LIFO: Inventory Valuation Methods

Understanding FIFO (First-In, First-Out) and LIFO (Last-In, First-Out) inventory valuation methods, their applications, comparisons, and significance in accounting and finance.

FIFO (First-In, First-Out) and LIFO (Last-In, First-Out) are two common inventory valuation methods used to manage the cost of inventory, crucial in financial reporting and tax calculations.

Types

FIFO (First-In, First-Out)

FIFO assumes that the earliest goods purchased or manufactured are the first to be sold. Here’s how it impacts financial statements:

  • Balance Sheet: Older costs remain in inventory.
  • Income Statement: Cost of Goods Sold (COGS) reflects older, typically lower costs in periods of rising prices.

LIFO (Last-In, First-Out)

LIFO assumes that the most recently acquired goods are the first to be sold. This method typically results in:

  • Balance Sheet: Inventory reflects older, lower costs.
  • Income Statement: COGS reflects higher, recent costs, reducing taxable income during inflation.

FIFO Calculation

For example, if a company buys 100 units at $10/unit and another 100 units at $15/unit:

LIFO Calculation

Using the same data:

Importance

  • Tax Implications: LIFO can reduce taxable income during inflation.
  • Financial Analysis: FIFO can present a more accurate asset valuation.
  • COGS: Cost of goods sold, crucial in inventory valuation.
  • Weighted Average Cost: Another inventory valuation method averaging the cost of all inventory items.

FAQs

  • Q: Can companies switch between FIFO and LIFO?

    • A: Yes, but it involves complex adjustments and regulatory compliance.
  • Q: Why is LIFO not allowed under IFRS?

    • A: IFRS aims for consistency and comparability, which LIFO disrupts due to inflation impacts.
  • Q: How does inflation affect LIFO?

    • A: LIFO results in higher COGS and lower taxable income during inflationary periods.
Revised on Monday, May 18, 2026