Inventories form one of the most significant components of a company’s current assets, and their proper valuation can make a decisive difference in understanding financial health. To provide consistency and transparency in how businesses account for these items, the International Accounting Standards Board (IASB) issued IAS 2, known as Inventories. This standard sets out how inventories should be measured, when costs are recognized as an expense, and which methods of assigning cost are acceptable.
Initially developed by the International Accounting Standards Committee (IASC) in 1993, IAS 2 replaced older guidance on inventory valuation that dated back to 1975. When the IASB took over standard-setting in 2001, IAS 2 was adopted into the international framework and has since been updated through various revisions and amendments.
What Counts as Inventory?
IAS 2 defines inventory broadly, covering assets that a company holds for sale, items currently undergoing production, and raw materials or supplies that will eventually be consumed in making goods or delivering services. This definition ensures that nearly all items intended for sale or production fall under its scope, while specific categories such as construction contracts, financial instruments, and biological assets are instead dealt with under separate standards like IFRS 15, IFRS 9, and IAS 41.
By clearly identifying what qualifies as inventory, the standard prevents inconsistencies that might otherwise arise across industries and jurisdictions.

The Core Measurement Principle
At the heart of IAS 2 is the principle that inventories should be valued at the lower of cost and net realisable value (NRV). The idea is straightforward: businesses should not overstate the value of their assets. If inventory can only be sold for less than what it cost to produce or purchase, the lower figure must be recognized in the financial statements.
Net realisable value is calculated as the estimated selling price in the normal course of business, minus costs still required to complete the goods and costs necessary to finalize the sale. This approach protects users of financial statements from misleading valuations, ensuring that reported inventory reflects its actual recoverable value.
Components of Inventory Cost
Determining the cost of inventory is more complex than simply noting the purchase price. IAS 2 includes several elements that together represent the cost of bringing inventory to its present state and location. These elements are:
- Purchase costs, including the price paid to suppliers, import duties, and transportation costs.
- Conversion costs, such as direct labour and systematic allocations of fixed and variable production overheads.
- Other costs, provided they are directly attributable to preparing the inventory for sale or use.
At the same time, IAS 2 specifies costs that should not be capitalized as inventory. These include abnormal waste, administrative overhead not tied to production, selling costs, and storage costs unrelated to the manufacturing process. Such expenditures are recognized as expenses in the period incurred rather than being rolled into inventory values.
Handling Joint Products and By-Products
In industries where a single process yields more than one product, such as refining or food processing, costs often need to be split between a main product and by-products. IAS 2 requires companies to allocate costs on a rational and consistent basis. Common allocation methods include using relative sales values once the products become separately identifiable. This ensures that inventory figures fairly represent the economic reality of production processes.
Costing Methods Permitted by IAS 2
The standard allows for several approaches to assigning cost to inventory items. Where items are not interchangeable or are produced for specific contracts, their specific costs must be traced directly. However, for interchangeable items or large pools of similar products, IAS 2 accepts two main cost formulas:
- First-in, First-out (FIFO): Assumes the oldest items are sold or used first, leaving the most recently acquired or produced items in closing inventory.
- Weighted Average Cost: Smooths out price fluctuations by averaging the cost of all items available for sale during the period.
The standard cost method and the retail method are also permitted in some industries. The standard cost approach values inventory using normal levels of input and efficiency, while the retail method estimates cost by reducing sales values with a gross profit margin.
Recognition of Inventory as an Expense
When inventories are sold, the carrying amount is recognized as an expense in the same period as the related revenue. This links directly to the matching principle in accounting, ensuring that costs are recognized alongside the revenues they help generate.
Write-downs to net realisable value, as well as inventory losses, must also be recognized as expenses in the period they occur. If conditions change and previously written-down inventory recovers in value, IAS 2 allows the reversal of write-downs, but only up to the original cost.
Historical Development of IAS 2
The origins of IAS 2 stretch back nearly five decades. The IASC first issued the standard in 1993, replacing earlier rules tied to the historical cost system. When the IASB was established in 2001, it adopted IAS 2 as part of its broader framework.
A major revision came in 2003, during the IASB’s first technical projects, which also incorporated guidance from an interpretation known as SIC-1 on cost formulas. Since then, IAS 2 has been adjusted several times to align with new accounting standards and evolving business realities.
Minor consequential amendments have been triggered by other standards, such as IFRS 13 on fair value measurement, IFRS 15 on revenue recognition, and IFRS 16 on leases. Most recently, IFRS 18 on presentation and disclosure in financial statements (issued in 2024) also made updates to IAS 2, ensuring harmony across the reporting landscape.

Exclusions from IAS 2
It is equally important to note what IAS 2 does not cover. Inventories tied to construction contracts are addressed under IFRS 15. Financial instruments fall under IFRS 9, while biological assets are treated in IAS 41. Borrowing costs, when directly attributable to inventory production, are instead dealt with under IAS 23. By carving out these exclusions, IAS 2 remains focused on core inventories without overlapping with specialized areas.
Why IAS 2 Matters
Inventories are central to many businesses, particularly in manufacturing, retail, and distribution sectors. A misstatement of inventory can distort reported profits, mislead investors, and impair decision-making. IAS 2 provides a disciplined approach to valuing and reporting inventory, promoting both comparability and reliability in financial statements.
The emphasis on lower of cost and NRV ensures conservatism, while flexibility in cost formulas allows businesses to adopt methods that best suit their operations. At the same time, exclusions and restrictions prevent abuse or overstatement of asset values.
Conclusion
IAS 2 has evolved significantly since its introduction, but its purpose has remained clear: to ensure inventories are measured and reported in a way that reflects economic reality and supports informed decision-making. By defining costs, excluding inappropriate expenditures, and providing clear valuation methods, the standard remains a cornerstone of international financial reporting.
As global commerce becomes increasingly complex, IAS 2 continues to play a critical role in ensuring transparency and accountability, reminding businesses that accurate reporting of even the most basic assets, like inventory, underpins trust in financial markets.
IAS 2 – Frequently Asked Questions
Which items qualify as inventory under IAS 2?
Inventories include goods held for sale, items in production, and raw materials or supplies to be consumed in creating products or services.
How should inventories be valued?
They must be measured at the lower of cost and net realisable value to avoid overstating assets on the balance sheet.

What costs are included in inventory valuation?
Costs of purchase, conversion (like direct labour and overhead), and other directly attributable expenses are included.
Which costs cannot be capitalized as inventory?
Abnormal waste, general administrative expenses, selling costs, and unrelated storage costs cannot be added to inventory.
What costing methods are acceptable under IAS 2?
The standard allows FIFO and weighted average cost formulas, while specific identification is required for unique or non-interchangeable items.
How are joint products or by-products handled?
When multiple products come from one process, costs must be allocated rationally, often based on the relative sales value of each product.
What happens when inventory loses value?
If net realisable value falls below cost, the loss must be recognized as an expense in that reporting period.
Why is IAS 2 significant for businesses?
Accurate inventory reporting prevents profit distortion, supports investor confidence, and provides decision-makers with reliable financial insights.

