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What is FIFO Method (Inventory)?
Grade Level:
Class 12
AI/ML, Physics, Biotechnology, FinTech, EVs, Space Technology, Climate Science, Blockchain, Medicine, Engineering, Law, Economics
Definition
What is it?
The FIFO (First-In, First-Out) method is an inventory valuation technique where it is assumed that the first goods purchased or produced are the first ones to be sold or used. Think of it like a queue: the item that entered the queue first is the first to leave.
Simple Example
Quick Example
Imagine a milk shop owner who buys 10 packets of milk on Monday and 10 more packets on Tuesday. When customers come to buy milk on Wednesday, the shop owner will naturally sell the packets bought on Monday first to ensure they don't expire. This is FIFO in action.
Worked Example
Step-by-Step
Let's say a stationery shop buys pens:
1. On Jan 5th: 100 pens at ₹10 each.
2. On Jan 15th: 150 pens at ₹12 each.
Now, on Jan 20th, the shop sells 120 pens. How do we calculate the cost of these 120 pens using FIFO?
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Step 1: Identify the first pens purchased. These are the 100 pens bought on Jan 5th at ₹10 each.
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Step 2: Sell these first 100 pens completely. Cost = 100 pens * ₹10/pen = ₹1000.
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Step 3: Calculate remaining pens to be sold. Total pens sold = 120. Pens already sold = 100. So, 120 - 100 = 20 pens still need to be sold.
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Step 4: Identify the next set of pens purchased. These are the 150 pens bought on Jan 15th at ₹12 each.
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Step 5: Sell the remaining 20 pens from this next batch. Cost = 20 pens * ₹12/pen = ₹240.
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Step 6: Calculate the total cost of goods sold. Total Cost = ₹1000 (from Step 2) + ₹240 (from Step 5) = ₹1240.
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Answer: The cost of the 120 pens sold using the FIFO method is ₹1240.
Why It Matters
Understanding FIFO is crucial for businesses to manage their inventory and calculate profits accurately. It's used in FinTech for financial analysis, in Biotechnology for managing lab supplies, and even in Climate Science for tracking resource consumption. Careers in finance, supply chain management, and even entrepreneurship heavily rely on this concept.
Common Mistakes
MISTAKE: Assuming FIFO means the physical movement of goods is always first-in, first-out. | CORRECTION: FIFO is an accounting assumption for costing. While often aligned, physical flow can differ (e.g., if items are hard to reach), but for accounting, we assume the oldest were sold first.
MISTAKE: Confusing FIFO with LIFO (Last-In, First-Out). | CORRECTION: FIFO assumes the earliest purchased items are sold first. LIFO assumes the latest purchased items are sold first. They are opposite methods.
MISTAKE: Using the average cost for all units sold when different purchase prices exist. | CORRECTION: With FIFO, you must track the specific cost of each batch of inventory and apply those costs to the units sold in the order they were purchased.
Practice Questions
Try It Yourself
QUESTION: A grocery store buys 50 kg of rice at ₹40/kg on March 1st and 70 kg at ₹45/kg on March 10th. If they sell 60 kg of rice on March 15th, what is the cost of goods sold using FIFO? | ANSWER: ₹2500
QUESTION: A mobile accessories shop purchased 20 phone covers at ₹150 each on April 1st, then 30 covers at ₹160 each on April 10th. If they sold 35 phone covers by April 20th, calculate the cost of goods sold using the FIFO method. | ANSWER: ₹5500
QUESTION: A bakery bought 10 sacks of flour at ₹800 each on May 1st, 15 sacks at ₹820 each on May 10th, and 8 sacks at ₹850 each on May 20th. If they used 22 sacks of flour during May, what is the cost of the flour used according to FIFO? | ANSWER: ₹18040
MCQ
Quick Quiz
Which of the following best describes the FIFO method?
The newest inventory is sold first.
The average cost of all inventory is used.
The oldest inventory is assumed to be sold first.
Inventory is sold based on its physical location in the warehouse.
The Correct Answer Is:
C
FIFO stands for First-In, First-Out, meaning the inventory that was acquired first is assumed to be sold first. Options A and B describe LIFO and the Weighted Average method, respectively. Option D is about physical flow, not the accounting assumption of FIFO.
Real World Connection
In the Real World
Think about your local kirana store or a big supermarket chain like D-Mart. They use inventory methods like FIFO to manage perishable goods (milk, bread, vegetables) to minimize waste. When you buy a packet of chips, the store ensures the older stock is sold first to keep everything fresh. This helps them track profits and avoid losses from expired items.
Key Vocabulary
Key Terms
INVENTORY: Goods a business holds for sale or use in production. | COST OF GOODS SOLD (COGS): The direct costs attributable to the production of the goods sold by a company. | PERISHABLE GOODS: Items that spoil or decay quickly, like food. | VALUATION: The process of determining the current worth of an asset or a company.
What's Next
What to Learn Next
Now that you understand FIFO, you should explore the LIFO (Last-In, First-Out) method and the Weighted Average Method. These are other important inventory valuation techniques that will help you compare how different methods impact a company's financial statements.
