In the operation of the Amazon platform, the accounting treatment and classification of seller fees have always been a focus for financial personnel. Specifically, should these fees be recognized as contra-revenue, cost of goods sold (COGS), or selling, general, and administrative expenses (SG&A)? In practical research, I have found various different answers, but I tend to believe that they are direct costs and therefore should be classified as contra-revenue or COGS. The following will sort this out based on accounting standards and practical conventions.

I. Nature of Fees and Classification Controversy

Amazon seller fees typically include platform commissions, storage fees, fulfillment fees, advertising fees, and more. These fees are directly related to sales activities, but their accounting treatment varies depending on the company's accounting policies. Under U.S. GAAP or IFRS, the classification of fees should be based on their economic substance and function.

1. Contra-revenue

If fees are considered a direct component of the sales transaction, such as platform commissions, some companies treat them as a deduction from revenue to reflect net revenue. This treatment is common in the e-commerce industry because commissions vary directly with sales and are closely related to revenue recognition.

2. Cost of Goods Sold (COGS)

If fees are directly related to the production or procurement of goods, such as storage or fulfillment fees, they may be classified under COGS. For example, Amazon FBA fees (storage and fulfillment) are typically considered fulfillment costs and part of COGS because they are necessary costs to deliver goods to customers.

3. Selling, General, and Administrative Expenses (SG&A)

For non-fulfillment expenses such as advertising fees and subscription fees, it is more common to classify them under SG&A. These fees are period costs, indirectly related to sales activities, and do not directly affect inventory costs.

II. Common Treatment in Practice

Based on my research and experience, the classification of Amazon seller fees is not uniform. Many small and medium-sized sellers treat all fees as SG&A to simplify accounting, but this may understate gross profit. Large e-commerce companies, however, tend to be more detailed:

  • Commissions and transaction fees: Usually treated as contra-revenue because they are direct deductions from the selling price.
  • FBA storage and fulfillment fees: Generally included in COGS because they are directly related to the holding and delivery of inventory.
  • Advertising and promotion fees: Classified under SG&A as marketing expenses.

However, this division is not absolute. For example, if a company uses a "total cost method" for accounting, all sales-related fees may be included in COGS to reflect full cost.

III. Standards Basis and Recommendations

Under ASC 606 (Revenue Recognition) or IFRS 15, commissions paid to platform providers, if they are "incremental costs of obtaining a contract," may be capitalized and amortized rather than directly deducted from revenue. However, Amazon commissions are typically treated as selling expenses because they are necessary expenditures when a sale occurs.

In the absence of clear standard guidance, companies should establish consistent accounting policies based on the function of the fees and the principle of materiality, and disclose the classification basis in the notes to the financial statements.

In summary, Amazon seller fees tend to be direct costs, but the specific classification needs to consider the nature of the fees and company policies. It is recommended that financial personnel communicate with auditors to ensure classification complies with standards and truly reflects operating performance.