FIFO Made Easy: First In First Out Principle Explained with a How-to Guide

12/2/2022


FIFO Made Easy: First In First Out Principle Explained with a How-to Guide

If you are in the business of buying and selling goods, you have probably heard of the First In First Out (FIFO) principle. This principle is a popular inventory management technique used to manage stock, ensure quality control, and reduce waste. In this article, we will explain the FIFO principle and give you a step-by-step guide on how to implement it in your business.

Understanding the FIFO Principle

The FIFO principle is a method of inventory management that requires you to sell or use the oldest inventory first. This means that the first items received into your inventory are the first items that should go out, hence the name First In First Out. While it might seem like a straightforward concept, implementing it can come with significant benefits.

What is FIFO?

The FIFO principle is a way of tracking, managing, and valuing inventory that assumes that the oldest items are sold or used first. Businesses that adopt this principle ensure that their oldest stock is the first to be sold or used before newer stock. For instance, if a grocery store applies FIFO principles to their fresh produce, they will always display, sell, and use the oldest products first. This ensures that the produce is always fresh, and customers are satisfied with the quality of the products they purchase.

Implementing FIFO principles in your business helps avoid spoilage, reduces obsolescence, helps you manage inventory levels, and ensures that your business is compliant with the generally accepted accounting principles (GAAP). Adopting FIFO lessens the chance of having old or expired goods in your inventory, which could lead to significant losses. Additionally, businesses that follow FIFO principles find it easier to manage their inventory effectively, reducing the chances of stock-related discrepancies.

One of the main advantages of the FIFO principle is that it helps businesses avoid spoilage. For businesses that deal with perishable goods, such as food or pharmaceuticals, FIFO is especially crucial. By using the oldest inventory first, businesses can ensure that they do not have expired goods in their inventory, which could lead to significant losses. FIFO also helps businesses manage inventory levels effectively, allowing them to keep track of their stock and order new products in a timely manner.

FIFO vs. LIFO: Key Differences

The LIFO (Last In First Out) principle is the opposite of FIFO, where you sell or use the newest inventory first. While both principles have their uses, FIFO is the preferred technique for most businesses. FIFO assumes that the inventory sold comprises the goods received earliest, while LIFO assumes that inventory sold comprises the latest goods delivered. This means that the cost of goods sold under LIFO will be based on the most recent prices, which could result in higher net income during periods of inflation. However, LIFO may not be the best option for businesses that deal with perishable goods, as it could result in significant losses due to spoilage.

In conclusion, the FIFO principle is a critical aspect of inventory management that helps businesses avoid spoilage, reduce obsolescence, manage inventory levels, and ensure compliance with GAAP. While LIFO has its uses, FIFO is the preferred technique for most businesses, especially those that deal with perishable goods. By adopting FIFO principles, businesses can ensure that they are using their oldest inventory first, reducing the chances of losses due to expired or obsolete goods.

Implementing FIFO in Your Business

Identifying Your Inventory Needs

The first step in implementing FIFO is to identify the goods that require the technique. This might depend on factors such as the product’s shelf life, seasonality, and demand. For instance, if you are in the food business, you might need to manage your perishable goods like dairy products and meat using the FIFO method.

Organizing Your Warehouse for FIFO Success

Once you have identified the inventory that needs to be tracked using FIFO, it’s time to organize it in your warehouse. To do this, you need to start by labeling the inventory with the date it was received and the product name. You should then place the oldest inventory closest to the shipping and receiving areas, while the newest inventory should be stored at the back of the warehouse. This ensures that older products are easily accessible and are the first to go out.

Training Your Staff on the FIFO Method

Implementing the FIFO principle in your business is not complete until your staff understands the importance of the technique. It’s essential that you train your staff on how to identify products using the FIFO method and how to rotate them correctly. You should also make sure that the technique is part of your standard operating procedures.

FIFO in Accounting

The Role of FIFO in Cost of Goods Sold

FIFO plays an important role in the cost of goods sold (COGS) of a business. In the COGS formula, the cost of the oldest inventory is used first, which is in line with the FIFO principle. This means that the cost of goods sold is based on the cost of the oldest inventory, ensuring that the value of inventory on the balance sheet is the current cost.

FIFO and Tax Implications

Implementing the FIFO principle in your business can have tax implications. FIFO can help reduce your taxable income by reducing the value of inventory on your balance sheet and increasing the cost of goods sold. Additionally, the principle is compliant with the GAAP, which is necessary for businesses that need to submit their financial statements for tax purposes.

Adjusting Your Financial Statements for FIFO

When implementing FIFO, it’s important to adjust your financial statements accordingly. You can do this by updating your inventory to reflect the oldest items first. Your balance sheet should reflect this change by showing the cost of your oldest inventory and increasing the cost of goods sold on your income statement.

FIFO in Computer Science and Data Structures

FIFO in Queue Data Structures

In computer science, the FIFO principle is used in queue data structures. Queues are data structures where the first element added is the first one removed. FIFO is used as a principle for removing items from the queue. The first item added to the queue is the first item removed, which ensures that the data is processed in the order it was received.

Implementing a FIFO Algorithm

Implementing a FIFO algorithm is pretty straightforward and follows the same principle as managing inventory using the technique. In the queue data structure, you need to add new items to the back of the queue and remove items from the front. Implementing a FIFO algorithm is essential when dealing with large datasets that require time-stamped processing.

Real-World Applications of FIFO in Computer Science

The FIFO principle is used in real-world applications such as time-series databases, sensor technology, and computing networking. In time-series databases, the principle is used to reduce data loss by ensuring that older data is not erased before newer data. In sensor technology, FIFO is used to store and process sensor data in the order it was received, while in networking, the principle is used to manage network traffic.

Conclusion

Implementing the FIFO principle in your business is an effective way to manage inventory, ensure quality control, and reduce waste. It’s important to identify the inventory that requires the technique, organize your warehouse accordingly, and train your staff on how to use the technique. In accounting and computer science, FIFO plays an essential role in managing inventory, processing data, and networking. Adopting the FIFO principle can help you manage your business effectively and stay ahead of the competition.

About The Author
Brennan Agranoff

Brennan Agranoff is the founder and owner of Nitro Logistics. He has 10+ years in eCommerce shipping and logistics.