COGS vs Operating Expenses: How Retailers Should Classify Costs

Cost of Goods Sold (COGS) The direct costs assigned to products sold, commonly including manufacturing and product costs under the company's accounting policies.

Retailers frequently face judgment calls about whether a cost belongs in COGS or in operating expenses (OPEX). The line matters: COGS reduces gross profit and inventory asset balances, whereas operating expenses reduce operating income but are not capitalized into inventory. Misclassification distorts key performance indicators such as gross margin, contribution margin, and EBITDA.

Core Distinction

COGS consists of costs that are directly attributable to producing or purchasing the goods sold. Operating expenses are costs necessary to run the business but not directly tied to producing or purchasing inventory. Examples clarify the contrast.

• Directly Attributable Costs (COGS): Supplier purchase price, inbound freight to warehouse, production labor, import duties, and required packaging.
• Operating Expenses: Store rent, advertising, sales commissions, head office salaries, utilities, and general warehouse overhead not tied to production.

Why Classification Affects Decision-Making

Gross margin is calculated as Sales − COGS. If non-direct expenses are incorrectly recorded in COGS, gross margin will be understated and operating margin overstated, which can lead to poor pricing and purchasing decisions. Conversely, overstating inventory by excluding direct costs inflates assets and future profits when inventory is sold.

Accounting Principles That Guide Classification

The matching principle in accrual accounting requires expenses to be recognized in the period revenue is earned. That means direct costs that produce inventory must be capitalized to inventory and recognized as COGS when the inventory is sold. Indirect costs are expensed as incurred unless they meet criteria for capitalization (for example, manufacturing overhead allocated under GAAP or IFRS).

Practical Examples For Retailers

Example 1: A retailer pays $2 per unit for a shirt and $0.50 per unit for custom hangtags required for sale. Both are COGS because the hangtags are necessary to sell the shirt. Example 2: A $5,000 store window display created to promote seasonal items is marketing expense, not COGS.

Allocating Overhead

Some overhead costs are allocable to inventory under GAAP/IFRS when they are necessary for production. Common examples in retail manufacturing include factory utilities and indirect manufacturing labor. For pure resellers, general warehouse rent and administrative salaries are usually treated as operating expenses; they are not added to inventory unless there is a specific, allocable production-related portion.

Common Misclassification Risks

• Charging Freight-to-Sell as OPEX: Outbound freight charged to customers is typically an operating expense; inbound freight that brings goods to inventory is COGS.
• Mixing Packaging Types: Promotional gift wrap paid for as marketing should be OPEX; primary packaging required to sell the product is COGS.
• Payroll Allocation Errors: Sales floor wages are operating expenses; direct manufacturing wages are COGS.

Controls And Policies To Reduce Errors

• Document Policies: Maintain a written inventory capitalization policy defining what direct costs and overhead are capitalized.
• Chart Of Accounts: Create specific GL codes for inbound freight, duties, direct packaging, manufacturing labor, and separate codes for marketing, rent, and utilities.
• System Integration: Ensure WMS and accounting systems auto-post cost allocations so human error is reduced.

When To Consult Finance Or Tax Advisors

Classification issues can have tax implications and may affect covenants with lenders. Changes in capitalization policy, adoption of new inventory costing methods, or complex manufacturing overhead allocations should be reviewed with an accounting advisor to ensure compliance with GAAP and IRS rules.

In short, the Cost of Goods Sold (COGS) includes direct product and manufacturing costs that are capitalized into inventory and recognized when sold; operating expenses are the ongoing costs of running the business. Retailers should adopt clear policies, proper GL codes, and system controls to keep classifications consistent and decision-useful.