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Inventory Write-Down

An Inventory Write-Down is an accounting adjustment that reduces the value of a company’s inventory because its carrying value on the books is no longer accurate. Think of it as a dose of reality for the Balance Sheet. This happens when the inventory has lost value and its market price (what it can be sold for) has fallen below the original cost the company paid for it. According to the accounting principle of conservatism, companies must anticipate future losses but not future gains. Therefore, under rules like Generally Accepted Accounting Principles (GAAP) and International Financial Reporting Standards (IFRS), businesses must value their inventory at the Lower of Cost or Net Realizable Value (LCNRV). When a write-down occurs, the loss is recognized on the Income Statement by increasing the Cost of Goods Sold (COGS), which in turn reduces the company's reported profit and Gross Profit Margin. On the Balance Sheet, the inventory assets account is decreased, reflecting its new, lower value.

Why Does It Happen?

An inventory write-down isn't just an abstract accounting entry; it reflects real-world business problems. A company might be forced to write down its inventory for several reasons, all of which boil down to one thing: the stuff isn't worth what it used to be. Common culprits include:

The Accounting Nitty-Gritty

Understanding how a write-down works on paper helps you see its real impact on a company's financial health.

The Magic Formula: LCNRV

The guiding rule is LCNRV, which stands for Lower of Cost or Net Realizable Value. A company must record its inventory at whichever of these two figures is lower.

If the NRV is lower than the cost, the difference is the amount of the write-down.

Where the Write-Down Shows Up

A write-down hits two of the three main financial statements:

What It Means for a Value Investor

For an investor, an inventory write-down is a signal that deserves careful investigation. It can be a treasure map leading to hidden problems or, occasionally, a misunderstood opportunity.

A Red Flag, But How Big?

The key is to determine if the write-down is a one-time fluke or a sign of a chronic illness.

How to Dig Deeper

When you spot an inventory write-down, put on your detective hat.

A Quick Example

Let's say a retailer, EuroFashion S.A., buys 1,000 designer coats for €200 each.

Unfortunately, a celebrity declares the coats “out of style,” and demand collapses. EuroFashion figures it can only sell the remaining coats at a clearance price of €90 each. It will cost them €10 per coat in marketing and shipping to get rid of them.

This €120,000 loss is added to COGS, crushing that period's profits, and the inventory asset on the balance sheet is reduced from €200,000 to €80,000.