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Difference Between FIFO and LIFO Methods of Inventory

  • Post last modified:February 27, 2023
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Explanation of inventory valuation

Inventory valuation is a crucial accounting concept that affects a company’s financial statements and profitability. The two most commonly used methods of inventory valuation are FIFO and LIFO.

Inventory valuation refers to the process of assigning a monetary value to the inventory items that a company holds in stock. This is important for several reasons, including determining the cost of goods sold, calculating the value of the inventory on a company’s balance sheet, and assessing the company’s profitability.

The inventory valuation method used by a company can significantly impact its financial statements, taxes, and profitability, making it essential to choose an appropriate valuation method. There are several inventory valuation methods, including the first-in, first-out (FIFO) method, the last-in, first-out (LIFO) method, and the weighted average cost method. Each method has its advantages and disadvantages, and the choice of method depends on factors such as the nature of the company’s operations, the type of inventory it holds, and the prevailing market conditions.

Brief overview of FIFO and LIFO methods

FIFO and LIFO are two popular inventory valuation methods used by companies to determine the value of their inventory.

The FIFO (first-in, first-out) method assumes that the first items purchased are the first ones sold. In other words, the oldest inventory items are assumed to be sold first, and the most recent inventory items are assumed to be sold last. This method is commonly used by companies that sell perishable goods, such as food or medicine, as it ensures that the oldest items are sold before they expire.

The LIFO (last-in, first-out) method assumes that the most recently purchased items are the first ones sold. In other words, the newest inventory items are assumed to be sold first, and the oldest inventory items are assumed to be sold last. This method is commonly used by companies that sell products that have a high turnover rate, as it allows them to assign a higher cost to their cost of goods sold, which can help to reduce their taxable income.

Both FIFO and LIFO methods have their advantages and disadvantages, and the choice of method depends on various factors such as the nature of the company’s operations, the type of inventory it holds, and the prevailing market conditions.

FIFO Method

FIFO (First-In, First-Out) is an inventory valuation method that assumes that the oldest inventory items are sold first. In other words, the first items purchased are the first ones sold. The most recent inventory items are assumed to remain in inventory until all older inventory items are sold.

Here are some key features of the FIFO method:

A. Calculation of Cost of Goods Sold (COGS) To calculate the cost of goods sold using the FIFO method, the cost of the oldest inventory items is assigned to the goods sold first, and the cost of the newest inventory items is assigned to the goods sold last. The formula for calculating the cost of goods sold is:

COGS = cost of oldest inventory items x quantity sold + cost of newer inventory items x quantity sold

B. Advantages of the FIFO Method

  1. The FIFO method results in a more accurate representation of the current value of inventory, as the cost of the oldest inventory items is assigned to the goods sold first.
  2. The FIFO method is often preferred by companies that sell perishable goods, such as food or medicine, as it ensures that the oldest items are sold before they expire.
  3. The FIFO method can help reduce the tax liability, as the cost of the oldest inventory items is assigned to the goods sold first, resulting in a lower cost and a higher taxable income.

C. Disadvantages of the FIFO Method

  1. The FIFO method may result in a higher cost of goods sold, which can reduce profitability, especially during periods of inflation.
  2. The FIFO method may result in an overvalued inventory, as the cost of the newest inventory items may be higher than the market value of the inventory.

D. Situations where the FIFO method is most appropriate

  1. When the company deals with perishable goods, it is essential to ensure that the oldest items are sold first.
  2. When the company has a stable market, and the inventory does not fluctuate significantly in value over time.
  3. When the company wishes to report higher net income and lower cost of goods sold during deflation.

LIFO Method

LIFO (Last-In, First-Out) is an inventory valuation method that assumes that the newest inventory items are sold first. In other words, the most recent inventory items are assumed to be sold first, and the oldest inventory items are assumed to remain in inventory until all the newer inventory items are sold.

Here are some key features of the LIFO method:

A. Calculation of Cost of Goods Sold (COGS) To calculate the cost of goods sold using the LIFO method, the cost of the newest inventory items is assigned to the goods sold first, and the cost of the oldest inventory items is assigned to the goods sold last. The formula for calculating the cost of goods sold is:

COGS = cost of newer inventory items x quantity sold + cost of older inventory items x quantity sold

B. Advantages of the LIFO Method

  1. The LIFO method results in a lower cost of goods sold, which can increase profitability, especially during periods of inflation.
  2. The LIFO method is often preferred by companies that sell products that have a high turnover rate, as it allows them to assign a higher cost to their cost of goods sold, which can help to reduce their taxable income.
  3. The LIFO method reflects the current market value of the inventory, as the cost of the newest inventory items is assigned to the goods sold first.

C. Disadvantages of the LIFO Method

  1. The LIFO method may result in an inaccurate representation of the current value of the inventory, as the cost of the oldest inventory items is not assigned to the goods sold until all the newer inventory items have been sold.
  2. The LIFO method may result in a lower net income, which can negatively impact the company’s financial statements.

D. Situations where the LIFO method is most appropriate

  1. When the company deals with inventory that has a high turnover rate, such as consumer electronics, apparel, or fast-moving consumer goods.
  2. When the company wishes to reduce its taxable income, especially during periods of high inflation.
  3. When the company wishes to report a lower cost of goods sold and higher net income in times of inflation.

Comparison between FIFO and LIFO Methods

Here are some key differences between FIFO and LIFO methods of inventory valuation:

  1. Order of inventory items sold: The primary difference between FIFO and LIFO is the order in which inventory items are sold. FIFO assumes that the oldest inventory items are sold first, while LIFO assumes that the newest inventory items are sold first.
  2. Cost of goods sold: The cost of goods sold (COGS) under FIFO and LIFO methods can differ significantly. Under FIFO, the cost of the oldest inventory items is assigned to the goods sold first, while under LIFO, the cost of the newest inventory items is assigned to the goods sold first. Therefore, the cost of goods sold is higher under FIFO when prices are increasing, while it is lower under LIFO when prices are increasing.
  3. Inventory valuation: The value of inventory on the balance sheet can also differ under the two methods. Under FIFO, the inventory is valued at the cost of the most recent inventory items, while under LIFO, the inventory is valued at the cost of the oldest inventory items.
  4. Tax implications: The tax implications of FIFO and LIFO can also differ. Under FIFO, the cost of the oldest inventory items is assigned to the goods sold first, resulting in a lower taxable income. On the other hand, under LIFO, the cost of the newest inventory items is assigned to the goods sold first, resulting in a higher taxable income.
  5. Suitability for different industries: FIFO is generally preferred by companies that sell perishable goods, such as food or medicine, as it ensures that the oldest items are sold first. LIFO, on the other hand, is often preferred by companies that sell products that have a high turnover rate, such as consumer electronics, apparel, or fast-moving consumer goods.

The choice between FIFO and LIFO methods of inventory valuation depends on the nature of the company’s operations, the type of inventory it holds, and the prevailing market conditions. Companies must consider the advantages and disadvantages of each method before selecting the most appropriate one for their business.

Conclusion

FIFO assumes that the oldest inventory items are sold first, while LIFO assumes that the newest inventory items are sold first. The choice between the two methods depends on various factors, such as the nature of the company’s operations, the type of inventory it holds, and the prevailing market conditions. While FIFO is suitable for companies that sell perishable goods, LIFO is suitable for companies that deal with inventory that has a high turnover rate. Companies must consider the advantages and disadvantages of each method before selecting the most appropriate one for their business. Proper inventory valuation is critical for accurate financial reporting and informed decision-making.