Merchandising vs. Service Activities and Transactions
Merchandising companies buy and resell goods, while service companies provide intangible services. This distinction shapes how each type of business reports its finances, especially on the income statement. Merchandising firms deal with inventory, purchases, and cost of goods sold, all of which require specific accounting treatments that service companies simply don't encounter.
Service vs. Merchandising Companies
Service companies provide intangible services to customers, such as haircuts, legal advice, or car repairs. Their operating cycle is straightforward:
- Acquire supplies and materials needed to perform services
- Provide services to customers using labor and expertise
- Collect cash from customers for services rendered
Because there's no physical product changing hands, service companies have no inventory to track. Their main expenses are labor and overhead.
Merchandising companies purchase and resell tangible goods to customers, such as clothing, electronics, or furniture. Their operating cycle adds an extra layer:
- Purchase inventory from suppliers to stock stores or warehouses
- Sell that inventory to customers at a markup to generate profit
- Collect cash from customers for goods sold
The big difference is inventory. Merchandising companies must track what they buy, what they sell, and what's still on hand. They do this using either a perpetual inventory system (updates inventory records continuously with each transaction) or a periodic inventory system (updates inventory records only at the end of an accounting period through a physical count).

Components of Net Purchases and Net Sales
Both net purchases and net sales start with a gross figure and then subtract adjustments for discounts, returns, and allowances. These adjustments give you a more accurate picture of what a company actually spent and actually earned.
Net Purchases
- Purchases: The total cost of goods acquired from suppliers to be resold to customers
- Less: Purchase discounts: Reductions in the purchase price offered by suppliers for early payment. For example, terms of 2/10, n/30 mean you get a 2% discount if you pay within 10 days; otherwise, the full amount is due in 30 days.
- Less: Purchase returns and allowances: The value of goods returned to suppliers due to defects or damage, plus any price reductions negotiated with suppliers for subpar goods kept by the buyer
Net Purchases = Purchases − Purchase Discounts − Purchase Returns and Allowances
Net Sales
- Sales: Total revenue from the sale of goods to customers at the retail price
- Less: Sales discounts: Reductions in the selling price offered to customers for early payment (e.g., 1/10, n/30 means a 1% discount if the customer pays within 10 days)
- Less: Sales returns and allowances: The value of goods returned by customers due to dissatisfaction or defects, plus any price reductions given to customers to compensate for subpar goods
Net Sales = Sales − Sales Discounts − Sales Returns and Allowances

Impact of Sales Adjustments
Sales discounts, sales returns, and sales allowances are all recorded as contra-revenue accounts. That means they carry a normal debit balance and are subtracted from gross sales on the income statement. Here's how each one works:
- Sales discounts reduce revenue but encourage customers to pay early, which improves cash flow. A company offering 2/10, n/30 terms is essentially trading a small revenue reduction for faster cash collection.
- Sales returns reduce revenue and represent goods that customers sent back for refunds or exchanges. High return rates can signal product quality issues.
- Sales allowances also reduce revenue but the customer keeps the goods. Instead of a full return, the seller offers a price reduction to compensate for a defect or other problem.
All three adjustments flow through to the bottom line in the same way:
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Contra-revenue accounts are subtracted from gross sales to determine net sales
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Lower net sales result in lower gross profit, since
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Lower gross profit leads to lower net income on the income statement
Gross margin (gross profit as a percentage of net sales) is a key metric for evaluating a merchandising company's profitability and pricing strategies. If your contra-revenue accounts are growing faster than sales, that's a red flag worth investigating.
Inventory Valuation Methods
Merchandising companies need a method to assign costs to their inventory. At this introductory level, the key methods to be aware of are:
- Retail method: Estimates ending inventory value based on the ratio between cost and retail prices. Commonly used by large retailers with many product lines.
- FIFO (First-In, First-Out): Assumes the oldest inventory items are sold first.
- LIFO (Last-In, First-Out): Assumes the newest inventory items are sold first.
- Weighted average cost: Assigns an average cost to all units available for sale during the period.
These methods will be covered in greater depth in later units, but for now, recognize that the choice of method affects both the reported cost of goods sold and the value of ending inventory on the balance sheet.