Which of the Following Is Not a Period Cost?
The short answer is: it’s a product‑cost – something that rides along with inventory until the goods are sold.
What Is a Period Cost, Anyway?
When you hear “period cost” you might picture a line item on a spreadsheet that just sits there every month. In reality, it’s a bookkeeping shortcut for any expense that doesn’t attach itself to a specific product. Think of rent, office salaries, advertising, utilities for the corporate HQ—costs that you incur just for existing in that accounting period, regardless of how many widgets you churn out.
Contrast that with product costs (sometimes called inventoriable costs). Those are the dollars you spend to get a unit ready for sale: raw materials, direct labor, factory overhead. They live on the balance sheet as inventory until the product leaves the warehouse, then they pop over to cost of goods sold (COGS).
People argue about this. Here's where I land on it Worth keeping that in mind..
In plain English: period costs hit the income statement right away; product costs wait in the wings.
Why It Matters / Why People Care
If you’re a small‑business owner, a finance student, or a CFO trying to squeeze more profit out of the numbers, knowing the difference changes everything Simple, but easy to overlook. Turns out it matters..
- Profitability analysis – Misclassifying a product cost as a period cost inflates expenses now and understates profit later. The reverse hides true margins.
- Tax planning – Some tax codes let you deduct certain period costs immediately, while product costs are only deductible when the inventory is sold.
- Pricing decisions – You can’t set a price that covers a cost that never shows up on your COGS. If you forget to allocate factory overhead, you’ll be pricing yourself out of the market.
In practice, the confusion often shows up in multiple‑choice quizzes: “Which of the following is not a period cost?” The answer hinges on whether the expense is tied to production or not The details matter here..
How It Works: Spotting the Odd One Out
Below are the typical suspects you’ll see on a test or in a real‑world cost‑allocation meeting. Let’s break them down.
### Direct Materials
These are the raw components that become part of the finished product—steel for a car frame, fabric for a shirt. Because they’re physically incorporated into inventory, they’re product costs, not period costs Practical, not theoretical..
### Direct Labor
The wages you pay the assembly‑line workers who actually touch the product. Again, that labor travels with the inventory until the item sells. So it’s a product cost Simple, but easy to overlook..
### Manufacturing Overhead
This is a catch‑all bucket for indirect factory expenses: depreciation on equipment, factory utilities, maintenance. Even though you don’t see a one‑to‑one link to a specific unit, the overhead is still assigned to inventory under absorption costing, making it a product cost Worth keeping that in mind..
### Selling, General & Administrative Expenses (SG&A)
Now we’re talking about the classic period costs. Advertising campaigns, sales commissions, office rent, executive salaries—none of these travel with the product. They hit the income statement the moment they’re incurred Simple, but easy to overlook. Practical, not theoretical..
### The “Trick” Item: Depreciation on Office Equipment
Depreciation shows up everywhere, which is why it trips people up. If the depreciation is on factory equipment, it’s part of manufacturing overhead (product cost). If it’s on office computers or a corporate building, it’s an SG&A expense—a period cost.
So, when the question reads “Which of the following is not a period cost?Now, ” the answer is any item that belongs to the product‑cost family: direct materials, direct labor, or manufacturing overhead. The “not a period cost” line is usually the one that directly contributes to making the product.
Common Mistakes / What Most People Get Wrong
-
Treating All Depreciation the Same
New accountants lump every depreciation charge under SG&A. The rule of thumb: where the asset lives decides the classification. -
Confusing Factory Utilities with Office Utilities
A utility bill for the plant (lighting the production floor) is overhead, not a period cost. The same bill for the corporate office? Period cost. -
Assuming All Labor Is Direct
Not every wage is direct labor. The supervisor’s salary is indirect labor—part of manufacturing overhead, hence a product cost Most people skip this — try not to.. -
Mixing Up Variable vs. Fixed
Period costs can be either. A fixed rent on the corporate office is still a period cost. Variable sales commissions are period costs too. The variable/fixed distinction doesn’t decide the classification. -
Over‑allocating SG&A to Inventory
Some firms try to “smooth” earnings by loading SG&A onto inventory. Accounting standards don’t allow that; it skews the balance sheet and can land you in an audit.
Practical Tips: How to Nail the Classification Every Time
- Ask the “where does it belong?” question. If the expense is incurred inside the production facility, it’s likely a product cost. If it’s outside—headquarters, sales floor, marketing department—it’s a period cost.
- Create a quick reference chart. List the usual suspects under two columns: Product Costs vs. Period Costs. Keep it on your desk when you’re grading quizzes or prepping financial statements.
- Use journal entry templates. When you record depreciation, have two separate templates: one for Manufacturing Equipment (debit Manufacturing Overhead) and one for Office Equipment (debit SG&A).
- Check your costing method. Under absorption costing, all manufacturing overhead is allocated to inventory. Under variable costing, only variable overhead goes to product cost; fixed overhead becomes a period cost. Know which method your company follows.
- Run a “cost‑flow” test. Follow the dollar from the moment it’s spent to the point it hits the income statement. If it travels through inventory, you’ve got a product cost.
FAQ
Q1: Is the cost of a factory manager a period cost?
A: No. The manager’s salary is indirect labor, part of manufacturing overhead, so it’s a product cost that gets allocated to inventory.
Q2: What about shipping costs for raw materials?
A: Those are * freight‑in* costs, treated as part of the inventory cost—so they’re product costs, not period costs Worth keeping that in mind..
Q3: Can advertising ever be a product cost?
A: Only if the ad is directly tied to a specific product’s production, like a label design that becomes part of the inventory. Standard advertising is SG&A, a period cost.
Q4: Does the classification change under tax accounting?
A: Generally no; the IRS follows the same basic distinction. Even so, some tax elections (e.g., Section 179 expensing) let you deduct certain product‑related assets immediately, blurring the line for tax purposes That's the part that actually makes a difference. Took long enough..
Q5: How do I treat warranty expenses?
A: Warranty costs are incurred after the sale, so they’re period costs—typically recorded as warranty expense or accrued liability That's the part that actually makes a difference..
Understanding which expense doesn’t belong to the period‑cost bucket is less about memorizing definitions and more about visualizing where the money flows. If it rides the inventory train, it’s a product cost; if it sits in the office, it’s a period cost Practical, not theoretical..
So the next time you see a list—direct materials, factory rent, sales commissions, office depreciation—just ask yourself: Does this expense travel with the product? If the answer is “no,” you’ve found the odd one out It's one of those things that adds up. Turns out it matters..
And that’s the whole story. Happy accounting!
