What it means
Specific identification stands apart from other inventory methods like FIFO or weighted average because it does not rely on assumptions about the flow of goods. Instead, it maintains a direct link between the exact physical item and its purchase price.
When an item sells, its unique acquisition cost moves straight to the income statement as cost of goods sold. This approach gives a completely accurate picture of profit for each specific transaction, ensuring that accounting records match reality.
This method matters because it prevents distortion in financial statements, particularly when dealing with expensive merchandise where purchase prices fluctuate wildly. If you sell identical mass-produced widgets, tracking each one individually is a waste of time.
But if you sell high-end goods, using generic averages would heavily skew your profit margins on a sale-by-sale basis. In practice, businesses use serial numbers, barcodes, or distinct RFID tags to track items from the moment of purchase to the final sale.
This requires reliable inventory management software and careful record-keeping. While it demands more administrative effort, the precision it provides is essential for businesses dealing with unique or high-ticket inventory.
Tax authorities permit specific identification, but they generally forbid switching methods arbitrarily from year to year. Companies must choose a method that accurately reflects their operational reality and stick with it.
Ultimately, it provides the highest level of accounting accuracy for the right type of business.
In practice
Real-world examples.
Example
An art gallery sells a painting for 5,000 pounds. Because the gallery bought this exact canvas for 2,000 pounds, the specific cost of goods sold is 2,000 pounds, leaving a clear 3,000 pound profit.
Example
A custom furniture workshop builds two identical dining tables using wood bought at different times. Table A cost 600 pounds in materials, while Table B cost 750 pounds due to price rises. Each table's profit is calculated using its exact cost.
Example
A luxury car dealership sells a specific sedan with a unique vehicle identification number. The dealer knows the exact purchase price paid to the manufacturer was 35,000 pounds, which is recorded as the cost upon sale.
Think of it
“Imagine a cinema selling reserved seats. Instead of averaging out the ticket prices and guessing who sat where, you look at the exact ticket stub for seat 12B to see what that specific person paid.
Formula
Calculation
Cost of Goods Sold = Exact Purchase Cost of Specific Item Sold
Example:
If a jeweler sells a diamond ring that cost 4,000 pounds to acquire, the cost of goods sold for that transaction is precisely 4,000 pounds. If it sells for 7,000 pounds, the gross profit is 3,000 pounds (7,000 pounds - 4,000 pounds).Case study
Seen in the real world.
Artisan Motors is a boutique dealer specializing in restored vintage motorcycles. Because every motorcycle has a unique history, condition, and restoration cost, the company uses specific identification for its inventory. In March, Artisan Motors purchased a 1970 classic bike for 8,000 pounds and spent 2,000 pounds on specific parts, bringing its total tracked cost to 10,000 pounds. In May, a collector purchased this exact motorcycle for 15,000 pounds. Using specific identification, Artisan Motors immediately matched the unique 10,000 pound cost to the sale, recording a gross profit of 5,000 pounds. The following month, they sold a different vintage bike that had a total cost of 12,000 pounds for 16,000 pounds, realizing a 4,000 pound profit. By tracking each motorcycle individually, the owner always knows the exact profit margin on every sale, avoiding the confusion of average costs and ensuring precise financial reporting for tax and management purposes.
Watch out
Common mistakes.
- Using specific identification for low-cost, high-volume items where the administrative effort outweighs the financial benefit.
- Failing to properly record serial numbers or unique identifiers at the time of purchase, leading to mismatched costs.
- Switching inventory valuation methods frequently without proper justification or consistency.
Questions
People also ask.
Can any business use specific identification?
Technically yes, but it is only practical and efficient for businesses that sell unique or high-value items that are easily distinguished from one another.
Is specific identification allowed for tax purposes?
Yes, tax authorities accept it, provided you apply it consistently and can prove the exact cost of each specific item sold.
Why don't supermarkets use specific identification?
It would be impossible to track the exact wholesale cost of every single can of beans or apple on the shelves, so they use methods like FIFO or weighted average instead.
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