What Is Inventory Valuation? Methods to Calculate Inventory Valuation

Every business that holds physical goods faces one unavoidable question at the end of each financial year: what is the stock actually worth? Inventory valuation is the process that answers this question. It determines the cost assigned to unsold goods, which directly affects the cost of goods sold, gross profit, and tax liability. 

For Indian businesses, choosing the right inventory valuation method is not just an accounting decision. It has real implications for GST compliance, income tax filing, and financial reporting accuracy. This guide covers what inventory valuation is, explains each of the major inventory valuation methods used in India, walks through the relevant formulas, and helps businesses decide which approach suits their specific situation.

Why Inventory Valuation Matters for Indian Businesses

Before jumping into the methods, it helps to understand why this matters beyond just an accounting formality.

1. Accurate Profit Reporting

The higher the closing inventory value, the lower the COGS, and the higher the gross profit. The reverse is also true. Inventory valuation directly controls how much profit a business appears to make in any given year.

2. Tax Implications

In India, income tax is calculated on net profit. Inventory valuation choices influence the COGS figure, which influences profit, which influences tax. This is not a minor difference. In periods of rising prices, different methods can produce noticeably different taxable incomes.

3. GST Compliance

For businesses registered under GST, inventory records must match the stock declared during audits and reconciliations. Discrepancies between physical stock and books can attract scrutiny during GST audits.

4. Business Decision Making

Investors, lenders, and even potential buyers look at inventory levels and values. A business with inflated or understated inventory raises red flags. Proper valuation gives creditors and partners a realistic picture of the business’s financial health.

What Are the Various Methods of Inventory Valuation?

There are several inventory valuation methods recognised under accounting standards. Each follows a different logic for assigning costs to goods. The most commonly used methods in India are:

1. FIFO (First In, First Out)
2. LIFO (Last In, First Out) — limited use in India
3. Weighted Average Cost Method
4. Specific Identification Method

Let us look at each one in detail.

1. FIFO — First In, First Out

What it means: Under FIFO, the assumption is that the goods purchased first are sold first. So the cost of the oldest inventory is used to calculate COGS, and the most recently purchased goods remain in closing stock.

Example:

A hardware dealer in Rajkot purchases 100 units of bolts at ₹10 each in January and another 100 units at ₹12 each in March. He sells 120 units in April.

Under FIFO:

• First 100 units sold at ₹10 = ₹1,000
• Next 20 units sold at ₹12 = ₹240
• COGS = ₹1,240
• Closing stock = 80 units @ ₹12 = ₹960

When to use it: FIFO works well for perishable goods, FMCG products, pharmaceuticals, and any business where older stock genuinely gets sold before newer stock. It reflects a realistic physical flow of goods.

Advantage: Closing inventory is valued at the most current cost, making the balance sheet closer to market value.

Limitation: In times of rising prices, FIFO shows higher profits, which means higher tax liability.

2. LIFO — Last In, First Out

What it means: Under LIFO, the most recently purchased goods are assumed to be sold first. The oldest stock sits in closing inventory.

Example (using same data):

Under LIFO:

• First 100 units sold at ₹12 (latest batch) = ₹1,200
• Next 20 units sold at ₹10 = ₹200
• COGS = ₹1,400
• Closing stock = 80 units @ ₹10 = ₹800

Important note for Indian businesses: LIFO is not permitted under AS-2 or Ind AS 2 in India. The Institute of Chartered Accountants of India (ICAI) does not allow LIFO for financial reporting. However, it is still discussed for academic purposes and is relevant for businesses operating under US GAAP in their international subsidiaries.

If a business operates only in India and files financial statements under Indian accounting standards, LIFO is not an option.

3. Weighted Average Cost Method

What it means: This method calculates an average cost for all units available for sale and applies that average to both units sold and closing stock.

Inventory Valuation Formula (Weighted Average):

Weighted Average Cost per Unit = Total Cost of Goods Available for Sale ÷ Total Units Available for Sale

Example:

Using the same data:

• January: 100 units @ ₹10 = ₹1,000
• March: 100 units @ ₹12 = ₹1,200
• Total: 200 units, total cost ₹2,200
• Weighted average = ₹2,200 ÷ 200 = ₹11 per unit
• 120 units sold: COGS = 120 × ₹11 = ₹1,320
• Closing stock: 80 × ₹11 = ₹880

When to use it: This method is widely used across Indian businesses, particularly manufacturers and traders dealing in commodities, chemicals, textiles, and goods where individual lot tracking is not practical.

Advantage: Smooths out price fluctuations over time. Neither inflates nor deflates COGS significantly.

Limitation: The average cost does not reflect the current market value of goods, especially during rapid price changes.

4. Specific Identification Method

What it means: Each item in inventory is tracked individually, and when sold, its actual cost is used. There is no averaging or assumption about which unit is sold first or last.

When to use it: This method suits businesses that deal in high-value, unique, or distinguishable items. Jewellery showrooms, automobile dealerships, real estate firms managing property stock, art dealers, and antique traders use this method because every item has a distinct purchase price.

Example: A jeweller buys three gold necklaces — one at ₹55,000, one at ₹60,000, and one at ₹58,000. When a specific necklace is sold, its exact purchase cost is recorded as COGS.

Advantage: Highly accurate. Matches specific costs to specific revenues.

Limitation: Impractical for businesses dealing in large volumes of identical goods. Not scalable without inventory management software.

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Inventory Valuation Formula: A Quick Reference

The broader inventory valuation formula that ties everything together is:

Closing Inventory Value = Opening Stock + Purchases During the Period − COGS

This formula applies regardless of the method chosen. What changes is how COGS is calculated.

Conclusion

Inventory valuation is not just an accounting formality. It shapes how a business understands its own performance, how much tax it pays, and how credibly it presents itself to auditors, lenders, and investors.

For most Indian businesses, the Weighted Average Cost Method offers the right balance of simplicity, compliance, and consistency. FIFO is ideal where physical flow of goods genuinely follows a first-in, first-out logic. Specific Identification is the right call for unique, high-value items.

The key is to choose a method thoughtfully, apply it consistently, and ensure that inventory records stay in sync with GST returns and purchase books throughout the year.

FAQ: Inventory Valuation

What is inventory valuation in simple terms?

Inventory valuation is the process of calculating the monetary value of goods a business holds at the end of an accounting period. It determines how much the unsold stock is worth on the balance sheet and how much cost to assign to goods that were sold.

Which inventory valuation method is most commonly used in India?

The Weighted Average Cost Method is the most commonly used inventory valuation method among Indian SMEs, traders, and manufacturers. It is simple, consistent, and accepted by Indian accounting standards and tax authorities.

Is LIFO allowed in India?

No. LIFO (Last In, First Out) is not permitted under AS-2 or Ind AS 2 in India. Indian accounting standards only permit FIFO and the Weighted Average Cost Method for most businesses.

What is net realisable value (NRV) in inventory valuation?

NRV is the estimated selling price of goods minus any costs needed to complete and sell them. Under Indian accounting standards, inventory must be valued at cost or NRV, whichever is lower.

Is inventory valuation mandatory for all Indian businesses?

Any business that holds physical stock and prepares financial statements must perform inventory valuation. It is required under the Companies Act for incorporated entities and under income tax law for businesses that maintain books of accounts.

About the author

Mehul Jagwani

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Mehul is a seasoned content writer with a passion for simplifying complex accounting and GST topics. With a keen interest in entrepreneurship and business management, he specializes in creating informative and engaging content for themunim.com. His goal is to help businesses understand and implement accounting and GST software solutions effectively. When he's not crafting content, Mehul enjoys exploring new places and spending time with his Golden Retriever.