Inventories: Process and Bases of Accounting for CA Foundation Students (AS 2, FIFO, WAC, NRV)

Inventories represent assets held for sale in the ordinary course of business, in the process of production for such sale, or in the form of materials or supplies to be consumed in the production process or in the rendering of services. For CA Foundation students, understanding the correct accounting and valuation of inventories is fundamental to presenting a true and fair view of financial statements and is a frequently tested topic.

Quick Answer for Featured Snippets:
Inventories are valued at the 'lower of cost or net realisable value (NRV)' as per AS 2 (Ind AS 2). This principle ensures that assets are not overstated and adheres to the prudence concept in accounting, recognizing potential losses but not anticipating gains.

What are Inventories? Definition, Types & Importance

Inventories are a crucial current asset for most businesses, especially manufacturing and trading entities. Their correct valuation directly impacts the Cost of Goods Sold (COGS) in the Profit & Loss Account and the Inventory value in the Balance Sheet, thereby affecting reported profit and financial position.

Definition as per AS 2:
As per Accounting Standard (AS) 2, 'Valuation of Inventories' (and Ind AS 2), inventories are assets:

• Held for sale in the ordinary course of business (e.g., Finished Goods in a manufacturing company, Goods for Resale in a trading company).
• In the process of production for such sale (e.g., Work-in-Progress).
• In the form of materials or supplies to be consumed in the production process or in the rendering of services (e.g., Raw Materials, Stores & Spares).

Types of Inventories:

• Raw Materials: Materials that are to be used in the production process.
• Work-in-Progress (WIP): Partially finished goods that are still in the production process.
• Finished Goods: Products that are complete and ready for sale.
• Stores & Spares: Items like lubricants, cleaning materials, small tools, spare parts that are consumed in the production process but do not become part of the finished product.
• Loose Tools: Small tools not capitalized as fixed assets, consumed over a short period.

Why Inventory Valuation Matters:

• Impact on Profit: Incorrect valuation directly affects Cost of Goods Sold (COGS) and thus Gross Profit and Net Profit.
• Impact on Financial Position: Inventory is a current asset. Its valuation affects current assets, working capital, and overall financial position on the Balance Sheet.
• Compliance: Adherence to accounting standards (AS 2 / Ind AS 2) is mandatory for true and fair financial reporting.
• Decision Making: Accurate inventory data is vital for management decisions regarding purchasing, production, pricing, and sales strategies.

Components of Inventory Cost (AS 2)

The cost of inventories should comprise all costs of purchase, costs of conversion, and other costs incurred in bringing the inventories to their present location and condition.

1. Costs of Purchase:

• Purchase Price: The actual price paid for the goods.
• Import Duties and Other Non-refundable Taxes: Taxes that cannot be recovered from tax authorities.
• Transport and Handling Costs: Freight inward, cartage, insurance in transit.
• Less: Trade Discounts, Rebates, and Other Similar Items: These are deducted from the purchase price.

$$\text{Cost of Purchase} = \text{Purchase Price} + \text{Import Duties} + \text{Non-refundable Taxes} + \text{Transport} + \text{Handling} - \text{Trade Discounts}$$

2. Costs of Conversion:

• Direct Labour: Wages paid to workers directly involved in production.
• Fixed Production Overheads: Indirect costs of production that remain relatively constant regardless of the volume of production (e.g., factory rent, depreciation of factory building). Allocated based on normal capacity.
• Variable Production Overheads: Indirect costs of production that vary directly with the volume of production (e.g., indirect materials, indirect labour). Allocated based on actual usage.

3. Other Costs:

• Costs incurred to bring the inventories to their present location and condition, e.g., costs of designing products for specific customers.

Costs Excluded from Inventory Cost:

• Abnormal Amounts of Wasted Materials, Labour, or Other Production Costs: Treated as expenses in the period incurred.
• Storage Costs: Unless those costs are necessary in the production process before a further production stage (e.g., maturation costs for wine).
• Administrative Overheads: That do not contribute to bringing inventories to their present location and condition.
• Selling and Distribution Costs: Costs incurred to sell the goods.

Inventory Valuation Principles: Lower of Cost or NRV

A fundamental principle in inventory valuation, as per AS 2, is to value inventories at the 'lower of cost or net realisable value (NRV)'. This principle is rooted in the accounting concept of prudence (conservatism).

Prudence Concept: The prudence concept dictates that assets and income should not be overstated, and liabilities and expenses should not be understated. Applying 'lower of cost or NRV' ensures that potential losses from holding inventory are recognized immediately, while potential gains are not anticipated.

Net Realisable Value (NRV): NRV is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated costs necessary to make the sale.

$$\text{NRV} = \text{Estimated Selling Price} - \text{Estimated Costs of Completion} - \text{Estimated Selling Costs}$$

Application: This comparison (cost vs. NRV) is typically done item by item. However, in some cases, it may be appropriate to group similar or related items. If NRV is lower than cost, the inventory is written down to its NRV, and the amount of the write-down is recognized as an expense in the period in which the write-down occurs.

Cost Formulae (Methods of Valuation)

AS 2 prescribes specific cost formulae for assigning costs to inventories. The choice of method can significantly impact the reported cost of goods sold and the ending inventory value.

1. Specific Identification Method

This method is used for items that are not ordinarily interchangeable (e.g., unique art pieces, custom-made machinery, specific projects) and for goods or services produced and segregated for specific projects. The cost is assigned by identifying the specific costs of each individual item of inventory.

Suitability: Suitable for businesses dealing with high-value, low-volume, distinct items.

2. First-In, First-Out (FIFO) Method

Assumes that the items of inventory that were purchased or produced first are sold first. Consequently, the inventories remaining at the end of the period are assumed to be those most recently purchased or produced.

Advantages:

• Reflects the actual physical flow of goods for many businesses (especially perishable goods).
• Ending inventory is valued at recent costs, which is closer to current market value.
• Results in higher reported profit during periods of rising prices (lower COGS).
• Accepted by AS 2/Ind AS 2.

Disadvantages:

• Can lead to higher tax liability during inflation.
• May not match current costs with current revenues (if old stock is sold at current prices).

3. Weighted Average Cost (WAC) Method

Under this method, the cost of each item is determined from the weighted average of the cost of all similar items available for sale during the period. The average is calculated by dividing the total cost of goods available for sale by the total units available for sale.

$$\text{Weighted Average Cost} = \frac{\text{Total Cost of Goods Available for Sale}}{\text{Total Units Available for Sale}}$$

Advantages:

• Smoothes out price fluctuations, providing a more stable cost figure.
• Relatively simple to apply, especially with perpetual inventory systems.
• Accepted by AS 2/Ind AS 2.

Disadvantages:

• Ending inventory may not reflect the most recent costs.
• Does not reflect actual physical flow of goods.

4. Last-In, First-Out (LIFO) Method

Assumes that the items of inventory that were purchased or produced last are sold first. Consequently, the inventories remaining at the end of the period are assumed to be those purchased or produced earliest.

Important: LIFO is NOT permitted by AS 2 / Ind AS 2. It is mentioned here for conceptual understanding and comparison purposes only. It was historically used in some jurisdictions (e.g., USA) but is generally prohibited by international accounting standards (IFRS).

Inventory Systems: Perpetual vs. Periodic

Businesses use different systems to keep track of their inventory. The choice of system impacts how inventory records are maintained and how COGS and ending inventory are determined.

1. Perpetual Inventory System

This system continuously updates inventory records for every purchase and sale. It provides a real-time balance of inventory on hand and the cost of goods sold. A physical count is still performed periodically to reconcile with records and identify discrepancies.

Advantages:

• Real-time inventory data.
• Better control over inventory.
• Facilitates timely reordering.
• COGS is known at the time of sale.

Disadvantages:

• Requires more detailed record-keeping.
• Can be more expensive to implement (e.g., barcode scanners, sophisticated software).

2. Periodic Inventory System

Under this system, inventory records are not continuously updated. Inventory is counted physically at the end of an accounting period to determine the ending inventory balance and, subsequently, the cost of goods sold.

$$\text{Cost of Goods Sold} = \text{Opening Inventory} + \text{Purchases} - \text{Closing Inventory}$$

Advantages:

• Simpler and less expensive to maintain.
• Suitable for businesses with low-value, high-volume items.

Disadvantages:

• No real-time inventory data.
• Inventory losses (theft, damage) are not immediately identified.
• COGS is only known at the end of the period.

Disclosure Requirements (AS 2)

As per AS 2, financial statements should disclose:

• The accounting policies adopted in measuring inventories, including the cost formulae used (e.g., FIFO, Weighted Average).
• The total carrying amount of inventories and the carrying amount in classifications appropriate to the enterprise (e.g., raw materials, work-in-progress, finished goods, stores and spares).
• The carrying amount of inventories carried at net realisable value.
• The amount of any write-down of inventories recognized as an expense in the period.
• The amount of any reversal of a write-down that is recognized as a reduction in the amount of inventories recognized as expense in the period.
• The circumstances or events that led to the reversal of a write-down.

Practice Questions

Test your understanding with these exam-style questions. Model answers are provided for self-assessment. These are designed to simulate CA Foundation written answer requirements (numerical problems and conceptual explanations).

Short Form Questions (Conceptual & Numerical)

Q1. Define 'Inventories' as per AS 2. Give two examples of costs that should be excluded from the cost of inventories.

Model Answer:
As per AS 2, 'Inventories' are assets (a) held for sale in the ordinary course of business; (b) in the process of production for such sale; or (c) in the form of materials or supplies to be consumed in the production process or in the rendering of services.

Two examples of costs excluded from the cost of inventories are:

1. Abnormal amounts of wasted materials, labour, or other production costs.
2. Selling and distribution costs.

Q2. Explain the 'lower of cost or net realisable value' principle for inventory valuation. Why is this principle followed?

Model Answer:
The 'lower of cost or net realisable value (NRV)' principle states that inventories should be valued at the lower of their historical cost or their estimated net realisable value. NRV is the estimated selling price in the ordinary course of business less estimated costs of completion and estimated selling costs.

This principle is followed due to the prudence (conservatism) concept in accounting. It ensures that assets are not overstated and potential losses are recognized immediately, while anticipated gains are ignored. This presents a more realistic and cautious view of the company's financial position.

Q3. Distinguish between the Perpetual Inventory System and the Periodic Inventory System.

Model Answer:

1. Perpetual Inventory System: Continuously updates inventory records for every purchase and sale, providing real-time inventory balances and COGS. Requires detailed record-keeping.
2. Periodic Inventory System: Inventory records are not continuously updated. A physical count at the end of the period determines ending inventory and COGS. Simpler but lacks real-time data.

Q4. A company purchased goods for ₹5,00,000. Import duties amounted to ₹50,000, and freight inward was ₹20,000. Trade discount received was ₹10,000. Selling expenses were ₹30,000. Calculate the cost of purchase for inventory valuation as per AS 2.

Model Answer:
Cost of Purchase = Purchase Price + Import Duties + Freight Inward - Trade Discount
Cost of Purchase = ₹5,00,000 + ₹50,000 + ₹20,000 - ₹10,000 = ₹5,60,000
(Selling expenses are excluded from the cost of inventory as per AS 2).

Case Studies (Comprehensive Scenarios with Full Solutions)

Case Study 1: Inventory Valuation using FIFO and Weighted Average Methods (Periodic System)

A trading concern provides the following information for the month of March 2025:

• March 1: Opening Stock - 200 units @ ₹10 per unit
• March 5: Purchases - 300 units @ ₹12 per unit
• March 12: Sales - 400 units
• March 18: Purchases - 500 units @ ₹11 per unit
• March 25: Sales - 300 units

Assume the company uses the Periodic Inventory System.

Requirements:
(a) Calculate the value of closing inventory as on March 31, 2025, using the FIFO method.
(b) Calculate the value of closing inventory as on March 31, 2025, using the Weighted Average Cost method.

Model Solution:

Step 1: Calculate Total Units Available and Total Units Sold

• Total Units Available for Sale = Opening Stock + Purchases = 200 + 300 + 500 = 1,000 units
• Total Units Sold = 400 + 300 = 700 units
• Closing Inventory Units = Total Units Available - Total Units Sold = 1,000 - 700 = 300 units

(a) FIFO Method (Periodic System):
Under FIFO, the closing inventory consists of the units most recently purchased.

• The 300 units in closing inventory are assumed to be from the latest purchase:
  • 300 units @ ₹11 (from March 18 purchase) = ₹3,300

Value of Closing Inventory (FIFO) = ₹3,300

(b) Weighted Average Cost Method (Periodic System):
Under the periodic weighted average method, a single average cost is calculated for all goods available for sale during the period.

• Total Cost of Goods Available for Sale:

  • Opening Stock: 200 units × ₹10 = ₹2,000
  • March 5 Purchase: 300 units × ₹12 = ₹3,600
  • March 18 Purchase: 500 units × ₹11 = ₹5,500
  • Total Cost = ₹2,000 + ₹3,600 + ₹5,500 = ₹11,100

• Weighted Average Cost per unit = Total Cost of Goods Available / Total Units Available

  • Weighted Average Cost per unit = ₹11,100 / 1,000 units = ₹11.10 per unit

• Value of Closing Inventory = Closing Inventory Units × Weighted Average Cost per unit

  • Value of Closing Inventory = 300 units × ₹11.10 = ₹3,330

Value of Closing Inventory (Weighted Average) = ₹3,330

Case Study 2: Inventory Valuation with NRV Adjustment

A company has 1,000 units of Product X in its inventory as on 31st March 2025. The historical cost per unit is ₹150. The estimated selling price per unit is ₹180. However, to sell these units, the company expects to incur selling expenses of ₹20 per unit. Additionally, if the product needs minor finishing, the estimated cost to complete is ₹15 per unit.

Requirements:
(a) Calculate the Net Realisable Value (NRV) per unit.
(b) Determine the value at which the inventory should be shown in the Balance Sheet as per AS 2.
(c) Pass the journal entry if a write-down is required.

Model Solution:

(a) Calculation of Net Realisable Value (NRV) per unit:

• Estimated Selling Price per unit = ₹180
• Less: Estimated Costs to Complete per unit = ₹15
• Less: Estimated Selling Costs per unit = ₹20
• Net Realisable Value (NRV) per unit = ₹180 - ₹15 - ₹20 = ₹145

(b) Determination of Inventory Value as per AS 2:
As per AS 2, inventory should be valued at the 'lower of cost or net realisable value'.

• Historical Cost per unit = ₹150
• NRV per unit = ₹145

Lower of Cost or NRV = ₹145 per unit.

Total Inventory Value = Number of units × Lower of Cost or NRV per unit
Total Inventory Value = 1,000 units × ₹145 = ₹1,45,000

(c) Journal Entry for Write-down (if required):
Since the NRV (₹145) is lower than the historical cost (₹150), a write-down is required.

Amount of write-down per unit = Historical Cost - NRV = ₹150 - ₹145 = ₹5 per unit.
Total write-down amount = 1,000 units × ₹5 = ₹5,000.

Journal Entry:

Common Mistakes & CA Exam Tips

• Forgetting NRV: Always compare cost with NRV and value at the lower of the two. This is a common trap.
• LIFO Usage: Remember that LIFO is not permitted by AS 2/Ind AS 2. Do not use it in calculations unless specifically asked for comparative purposes (which is rare for Foundation).
• Cost Components: Be careful to include all relevant costs (purchase price, duties, freight) and exclude irrelevant ones (selling costs, abnormal waste, general admin overheads).
• Periodic vs. Perpetual: Understand the difference in calculation, especially for FIFO and Weighted Average. For periodic, average is calculated once at the end; for perpetual, it's a moving average.
• Journal Entries: Practice journal entries for inventory purchases, sales, and write-downs.
• Presentation: Clearly show your workings for FIFO and Weighted Average calculations in exams.

Sample MCQ (Exam Style):
Which of the following costs should be included in the cost of inventories as per AS 2?
(A) Abnormal amounts of wasted materials
(B) Selling and distribution costs
(C) Freight inward on purchases
(D) Administrative overheads not related to production

Answer: (C)

Key Takeaways

• Inventories are assets held for sale, in production, or for consumption in production.
• AS 2 mandates valuation at the lower of cost or net realisable value (NRV), adhering to the prudence concept.
• Cost of inventory includes purchase costs, conversion costs, and other directly attributable costs.
• Key valuation methods are FIFO and Weighted Average Cost (LIFO is not allowed in India).
• Understand the difference between Perpetual and Periodic inventory systems and their impact on calculations.
• Proper disclosure of inventory policies is crucial for financial reporting.

Frequently Asked Questions (FAQs)

Q: What is the primary principle for inventory valuation as per AS 2?
A: As per AS 2, inventories are valued at the 'lower of cost or net realisable value (NRV)'.

Q: Is LIFO method allowed for inventory valuation in India?
A: No, the LIFO (Last-In, First-Out) method is not permitted for inventory valuation as per Accounting Standard (AS) 2 and Indian Accounting Standard (Ind AS) 2.

Q: What is Net Realisable Value (NRV)?
A: NRV is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated costs necessary to make the sale.

Q: When is the Specific Identification Method used for inventory valuation?
A: It is used for items that are not ordinarily interchangeable, such as unique art pieces, custom-made machinery, or goods segregated for specific projects, where the specific cost of each item can be identified.

References & Further Reading

• Accounting Standard (AS) 2 – Valuation of Inventories (ICAI)
• Indian Accounting Standard (Ind AS) 2 – Inventories (ICAI)
• ICAI Study Material for CA Foundation Paper 1: Accounting
• Relevant chapters on Final Accounts and Cost Accounting principles.

Last Updated: July 2026 | Prepared by Kartavvya CA Expert Team (aligned with latest ICAI syllabus & AS 2)

Ready to master this topic?
Practice hundreds of MCQs, past-year questions, and get personalized weak-area analytics with adaptive study plans on Kartavvya – your AI-powered CA prep companion. [Start Free Trial / Join Now]