Inventory valuation plays a crucial role in determining the true financial performance of a business. Since inventory is directly linked to the cost of goods sold (COGS), its valuation affects gross profit, net profit, and taxable income. Accounting standards such as IAS 2 / Ind AS 2 / AS 2 mandate inventories to be valued at the lower of cost or net realizable value (NRV) to ensure fairness and prevent income overstatement. Different valuation methods like FIFO, LIFO, Weighted Average, and Specific Identification produce different results under inflation or deflation. Therefore, inventory valuation not only impacts reported income but also influences taxation, dividend policies, and decision-making by stakeholders.
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Impact under FIFO Method
FIFO assumes that the earliest purchased goods are sold first. In times of inflation, older inventory is cheaper, resulting in a lower cost of goods sold (COGS) and higher gross profit. Consequently, reported business income increases, but this also leads to higher tax liability. On the balance sheet, closing stock is valued at recent market prices, providing a more realistic financial position. However, it may overstate profitability compared to actual cash flows, affecting dividend distribution decisions. In deflation, the opposite occurs—COGS increases and income decreases. Thus, FIFO can exaggerate income in inflationary periods, making the business appear more profitable than it actually is. From a long-term perspective, while FIFO provides a realistic stock value, it may distort income measurement due to fluctuating purchasing costs.
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Impact under LIFO Method
LIFO assumes that the most recent inventory is sold first. During inflation, COGS reflects higher recent purchase prices, reducing gross profit and reported income. This leads to lower taxable income, benefiting businesses in terms of tax savings. However, closing inventory is valued at older, outdated prices, understating the balance sheet value. This makes the company appear less profitable but more conservative in income reporting. In deflationary times, the effect reverses—COGS becomes lower, profits increase, and taxes rise. Although LIFO aligns income with current costs, it is prohibited under IAS 2 and Ind AS 2, but still allowed under US GAAP. Its major impact on business income is tax reduction during inflation, though it compromises balance sheet accuracy. Thus, while favorable for tax planning, LIFO does not reflect the true value of stock or income sustainability.
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Impact under Weighted Average Cost Method
The weighted average cost method spreads total inventory costs evenly over all units, ensuring uniformity in valuing COGS and closing stock. This method smooths price fluctuations, reducing drastic income changes due to inflation or deflation. As a result, business income remains stable and comparable across accounting periods. In inflation, profits under the weighted average method are lower than FIFO but higher than LIFO, providing a balanced approach. Since both COGS and stock are valued at the same average rate, financial statements reflect consistency, making it suitable for long-term decision-making. Tax liability also remains moderate as income is not overstated or understated. IAS 2 and Ind AS 2 allow this method as it avoids extreme swings in profitability. Therefore, the weighted average method impacts business income by ensuring stability, fair presentation, and reduced volatility compared to FIFO or LIFO.
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Impact under Specific Identification Method
The specific identification method directly matches the actual cost of each sold item with the revenue earned, resulting in precise measurement of business income. It provides the most accurate reflection of profitability since no assumptions are made about cost flow. This method is particularly useful for businesses dealing in high-value, unique items such as automobiles, jewelry, real estate, or custom machinery. Income measurement is neither overstated nor understated, as it depends on the exact cost of the sold item. However, in periods of fluctuating prices, income may vary widely depending on which specific units are sold, leading to inconsistency. Tax liability and reported income directly follow the actual costs incurred. IAS 2 and Ind AS 2 permit this method, though it is impractical for large volumes of identical goods. Hence, its impact on income measurement is accuracy and transparency, though limited by applicability.