Chapter 5: Merchandising & Inventory Systems — the full lesson
Merchandising operations
Up to now the businesses in this course have sold services. A merchandiser is different: it buys goods and resells them. That one change adds a big new number to the income statement — the cost of the goods sold — and a new headline figure, gross profit.
The whole chapter follows one chain: Net sales − Cost of goods sold = Gross profit; Gross profit − Operating expenses = Net income. A merchandiser's operating cycle is also longer than a service firm's — it runs cash → buy inventory → sell inventory → collect cash.
Two inventory systems: perpetual and periodic
There are two ways to track inventory, and which one a business uses changes how you record every purchase and sale.
We'll learn the perpetual system first (Part 1), then the periodic system (Part 2). Same transactions, different bookkeeping.
Perpetual: recording purchases
Under the perpetual system, buying merchandise for resale goes straight into the Inventory account. Buy $6,000 of goods on account: debit Inventory $6,000, credit Accounts Payable $6,000.
Read "2/10, n/30" as: 2% off if you pay within 10 days, otherwise the full amount is due in 30. In the perpetual system, both the discount and the freight adjust Inventory, because they change what the goods actually cost you.
Perpetual: recording sales
Every sale under the perpetual system needs TWO entries — one for the revenue, one for the cost.
Adjusting and closing for a merchandiser
At period end a merchandiser has one extra adjusting entry: inventory shrinkage. The perpetual records say one thing; a physical count often says less (theft, breakage, error). You write the records down to the count.
Closing is like Chapter 4, with more temporary accounts. Close Sales Revenue into Income Summary (debit Sales Revenue, credit Income Summary). Then close all the debit-balance temporaries out — Sales Returns and Allowances, Sales Discounts, Cost of Goods Sold, Freight-Out, and the operating expenses — by debiting Income Summary and crediting each. Finally close Income Summary and Drawings to Owner's Capital.
The multi-step income statement
A merchandiser's income statement is usually multi-step, meaning it shows subtotals along the way instead of one big list. Read it top to bottom.
- Net sales = Sales Revenue − Sales Returns and Allowances − Sales Discounts.
- Gross profit = Net sales − Cost of goods sold.
- Income from operations = Gross profit − Operating expenses (salaries, rent, freight-out, utilities, etc.).
- Net income = Income from operations + other revenues and gains − other expenses and losses (interest revenue, interest expense, a loss on disposal, etc.).
Single-step statement and the gross profit rate
A single-step income statement skips the subtotals: it lists total revenues, then total expenses, and subtracts once to get net income. Same net income, simpler layout.
The gross profit rate is one of the most-watched retail numbers — a falling rate warns that costs are rising faster than prices, or that discounts are eating into margin.
The periodic system: the accounts
In the periodic system (Part 2), you do not touch Inventory during the period. Instead you use a set of temporary accounts, then compute cost of goods sold at the end.
- Purchases — a temporary account for merchandise bought (debit).
- Purchase Returns and Allowances — a contra account for goods sent back (credit).
- Purchase Discounts — a contra account for early-payment discounts taken (credit).
- Freight-In — the freight cost on incoming goods (debit); it's part of the cost of buying inventory.
So under periodic, a $6,000 purchase on account is: debit Purchases $6,000, credit Accounts Payable $6,000 — Inventory is untouched until the count.
The periodic cost-of-goods-sold schedule
Because nothing updated Inventory during the period, you compute cost of goods sold at the end with a short schedule.
- Net purchases = Purchases − Purchase returns and allowances − Purchase discounts + Freight-In.
- Cost of goods available for sale = Beginning inventory + Net purchases.
- Cost of goods sold = Cost of goods available for sale − Ending inventory (from the physical count).
Periodic vs. perpetual: the same transaction
The same events are journalized differently in the two systems. Under periodic, purchases and their adjustments hit the special temporary accounts, and a sale records only the revenue — never COGS during the period.
- Buy goods on account: periodic → debit Purchases, credit Accounts Payable. (Perpetual → debit Inventory.)
- Pay freight on incoming goods: periodic → debit Freight-In. (Perpetual → debit Inventory.)
- Return goods to a supplier: periodic → debit Accounts Payable, credit Purchase Returns and Allowances. (Perpetual → credit Inventory.)
- Take a purchase discount: periodic → credit Purchase Discounts. (Perpetual → credit Inventory.)
- Sell goods: periodic → debit Cash/Accounts Receivable, credit Sales Revenue only — no COGS entry until period end. (Perpetual → also debit COGS, credit Inventory.)
Whichever system a business uses, the final gross profit and net income come out the same. Periodic just defers the cost side to a period-end calculation instead of recording it sale by sale.
Research and education, not financial advice. © OptionFlowTracker.