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Inventory Management

Inventory Management

Inventory management is the practice of tracking, ordering, storing, and controlling the goods a business holds at every stage of the supply chain. The goal is to have exactly what you need, when you need it, without tying up unnecessary capital in excess stock or losing sales because shelves are empty. Every product a company sells has an optimal inventory level, and finding and maintaining that level is the central problem inventory management solves.

Done well, inventory management reduces carrying costs, minimizes waste, and keeps cash flowing. Done poorly, it results in stockouts that disappoint customers, overstock that drains cash, or spoilage that destroys margin.

FIFO Sends the Oldest Stock Out the Door First

First In, First Out (FIFO) assumes that the goods you received earliest are also the first goods you sell or use. This matches the physical reality of most inventory: the items you bought three months ago should leave before the items you received last week.

FIFO is the right choice for perishable goods like food, pharmaceuticals, and cosmetics because it minimizes the risk of expiration. It is also required under International Financial Reporting Standards (IFRS). During periods of rising prices, FIFO produces a lower cost of goods sold, which means higher reported profit and higher taxes.

LIFO Uses the Most Recent Costs to Calculate Profit

Last In, First Out (LIFO) assumes that the most recently purchased inventory is the first to be sold. The cost assigned to each unit sold reflects current prices rather than older, usually lower prices.

During inflation, LIFO produces a higher cost of goods sold, which reduces taxable income. This is why US companies in industries like oil, metals, and chemicals have historically used LIFO for tax purposes. LIFO is permitted under US GAAP but prohibited under IFRS, making it unavailable to companies that report under international standards.

Just-in-Time Inventory Keeps Almost Nothing on the Shelf

Just-in-Time (JIT) inventory management eliminates excess stock by ordering materials and receiving goods only when they are needed for production or sale. The warehouse is nearly empty by design.

Toyota pioneered JIT manufacturing as part of its production system starting in the 1970s. The approach slashes carrying costs and forces tight supplier relationships. The risk is fragility: any supply chain disruption, such as the semiconductor shortages of 2021 to 2023, exposes the vulnerability of businesses that hold no buffer inventory.

ABC Analysis Separates Inventory Into Priority Tiers

ABC analysis categorizes your entire inventory into three groups based on value and usage frequency. Category A items represent a small percentage of SKUs but the largest share of total inventory value. These get the tightest controls and most frequent review. Category B items are moderate in both count and value. Category C items are numerous but individually low-value, like fasteners and office supplies, and they get periodic review.

Think of it like prioritizing maintenance on your car: brakes and tires get checked before windshield wipers.

Economic Order Quantity Sets the Optimal Reorder Amount

Economic Order Quantity (EOQ) is the formula-driven answer to how much you should order at once. It balances two competing costs: the cost of ordering frequently in small batches versus the cost of carrying large quantities of inventory. The EOQ minimizes the sum of both.

A business that orders too often pays more in transaction costs and administrative effort. A business that orders in very large batches pays more in warehouse space, insurance, and capital tied up in stock. EOQ finds the number that minimizes total cost.

Sources

  • Business News Daily – https://www.businessnewsdaily.com/5514-fifo-lifo-differences.html
  • Tractian – https://tractian.com/en/blog/fifo-vs-lifo-differences-benefits-formula
  • BoxHero – https://www.boxhero.io/en/blog/stock-control-methods-fifo-lifo-jit
  • Block Advisors – https://www.blockadvisors.com/resource-center/finance/fifo-vs-lifo/
  • Master Class Management – https://www.masterclassmanagement.com/BusinessManagementCourse-InventoryManagement.html
About the Author
69f8467037b69a9d6ca86eee_69de3985682f83e6650eb2d4_Jan Strandberg
Jan Strandberg is the Founder and CEO of Acquire.Fi. He brings over a decade of experience scaling high-growth ventures in fintech and crypto.

Before founding Acquire.Fi, Jan was Co-Founder of YIELD App and the Head of Marketing at Paxful, where he played a central role in the business’s growth and profitability. Jan's strategic vision and sharp instinct for what drives sustainable growth in emerging markets have defined his career and turned early-stage platforms into category leaders.
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