FIFO vs LIFO: Differences, Advantages and Disadvantages, Applications, and More

First In, First Out and Last In, First Out are two common inventory management methodologies. The two models are based on opposite methods, each with a few distinct advantages in certain industries and verticals.

A Definition of First In, First Out (FIFO) and Last In, First Out (LIFO)

First in, first out (FIFO) is an inventory management system that operates by using the first, or oldest, stock first and saving the most recently produced or received inventory until all other inventory has been used or shipped. The goal of FIFO is to ensure the oldest stock is used first to reduce costs associated with obsolete inventory. This inventory system also rotates stock and is used in a wide range of industries. Some organizations combine FIFO with other inventory management models and inventory systems as part of an economic order quantity (EOQ) model to avoid stock-outs of products.
Last in, first out (LIFO) is an inventory management system used most often for non-perishable products or those with a low turnover rate, since it is the process used to sell or ship products manufactured or stored later first and those that are manufactured or acquired early last. LIFO is the opposite of FIFO, and it is useful in valuing inventory on hand at the end of a period as well as the cost of goods sold during the same period.

Advantages of Using FIFO in Your Warehouse

One of the most significant advantages of using first in, first out in your warehouse is that warehouse inventoryit solves your company’s problems with the fluctuating costs of inventory. Under FIFO, your inventory bottom line is more likely to approximate the current market value. Your company will find that your assumed flow of costs corresponds with the normal physical flow of goods and that your first deducted inventory costs are the oldest unit costs. Other advantages of using the FIFO method include its ease of application and its acknowledgement of the fact that companies cannot manipulate income by choosing which unit to ship.

Disadvantages of Using FIFO in Your Warehouse

Because prices have risen nearly constantly for years, the FIFO method can make it appear as though your company has a greater cash flow than it does. Thus, the disadvantages of FIFO are the ways in which it makes it look, at least on paper, that companies are making a larger profit than they are. This larger-than-life profit, of course, leads to a heavier tax burden if FIFO is used during periods of inflation. Higher taxes from FIFO valuation diminish a company’s cash flows and growth opportunities.
Another disadvantage of using FIFO is that it typically fails to show an accurate picture of costs when material prices increase rapidly. Accounts using costs from months or years previous do not help managers spot cost issues quickly. Companies also miss out on the tax advantages of LIFO.

Advantages of Using LIFO in Your Warehouse

Companies that use the last in, first out method gain a tax advantage because the method assumes the most recently acquired inventory is what is sold. As inflation continues to warehouse workrise, LIFO produces a higher cost of goods sold and a lower balance of leftover inventory. The higher cost of goods sold results in a smaller tax liability because of the lower net income due to LIFO.

Disadvantages of Using LIFO in Your Warehouse

 LIFO is more difficult to maintain than FIFO because it can result in older inventory never being shipped or sold. LIFO also results in more complex records and accounting practices because the unsold inventory costs do not leave the accounting system. LIFO is not recommended if you have perishable products, since they may expire on the shelf before they are sold or shipped. LIFO also is not an ideal method for businesses expanding globally because a number of international accounting standards do not allow LIFO valuation.

Recommended Reading on FIFO vs LIFO

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