Whether payroll is an operating expense or COGS depends on what the employee actually does. Wages paid to workers who directly make a product or deliver a billable service belong in Cost of Goods Sold. Salaries for the people who keep the business running—executives, accountants, HR, marketing, general office staff—are operating expenses, reported under Selling, General, and Administrative (SG&A). The distinction shapes your gross margin, your inventory value, and how lenders and investors read your income statement.
Payroll That Belongs in COGS
Direct labor is the wages of workers who physically transform raw materials into finished goods or whose time is billed to a client project. For a furniture manufacturer, that’s the hourly pay of the carpenters and assembly-line workers building each piece. For a service business, it’s the technician dispatched to fix a customer’s HVAC system. If production or service delivery stops, this labor cost drops or disappears, which is why it behaves as a variable expense that rises and falls with output.
Putting these wages “above the line” is what lets you calculate a real gross margin: revenue minus the immediate cost of making each sale. It also matters for inventory. Under federal tax law, businesses that produce or resell goods generally must capitalize direct costs, including labor, into the value of inventory rather than deducting them right away.1Office of the Law Revision Counsel. 26 U.S. Code 263A – Capitalization and Inclusion in Inventory Costs of Certain Expenses Under both U.S. GAAP and international standards, inventory cost includes direct materials, direct labor, and an allocation of production overhead.2KPMG. Inventory Accounting: IFRS Standards vs US GAAP So the wages of production workers building goods that haven’t sold yet sit on your balance sheet as an asset until those goods leave the warehouse.
Payroll That Is an Operating Expense
Compensation for employees who support the business without producing a specific unit of output is an operating expense. Chief executives, office managers, accountants, HR staff, marketing teams, salespeople. Their pay keeps the organization functioning, but it isn’t tied to any particular product or client engagement. Because these employees are paid whether the company sells one unit or ten thousand, their labor cost tends to hold steady from quarter to quarter.
These wages sit on the SG&A line of the income statement. A law firm records its office manager’s salary here because the role supports the firm’s overall operations rather than generating billable work. Keeping indirect labor separate from production labor gives leadership a cleaner view of whether overhead is growing faster than revenue.
Employees Who Split Their Time
Some roles don’t fit neatly on either side. A plant supervisor who oversees production in the morning and handles administrative scheduling in the afternoon is doing both direct and indirect work. Allocate the wages based on how the time is actually spent: the production portion goes to COGS, the administrative portion to SG&A.
Time-tracking systems or reasonable percentage estimates based on job duties are the standard methods. Consistency matters more than precision. Once you pick a method, apply it the same way each period so financial statements stay comparable. Inconsistent allocation distorts gross margin and makes it harder for a lender or investor to read trends in your business.
Why the Classification Matters
The income statement runs top-down. Gross profit is revenue minus COGS, which includes direct labor. Operating income is gross profit minus operating expenses, which includes SG&A payroll. Bottom-line net income is the same regardless of where you put the wages, but the ratios in between are not.
Put direct labor in SG&A by mistake and your gross profit looks artificially high while your operating expenses look inflated. Investors and lenders use gross margin and operating margin to compare companies inside the same industry, so a misclassification produces misleading comparisons and can raise questions in an audit or tax examination. Keeping the records that support each classification—showing what employees actually do—protects you when someone asks.
What Payroll Actually Includes
Whichever side of the line a wage falls on, “payroll” is more than the hourly rate or annual salary. Several employer-paid taxes and benefits stack on top of gross wages, and all of them travel with the underlying wage into either COGS or SG&A.
FICA
Employers owe a matching share of Federal Insurance Contributions Act taxes: 6.2% for Social Security and 1.45% for Medicare, totaling 7.65% of wages.3Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates The Social Security portion applies only to wages up to $184,500 per employee in 2026; earnings above that cap aren’t subject to the 6.2% rate.4Social Security Administration. Contribution and Benefit Base Medicare has no wage cap. Employers must also withhold an extra 0.9% Medicare tax on an individual employee’s wages above $200,000 in a calendar year, but there is no employer match on that additional amount.
Federal Unemployment Tax
The Federal Unemployment Tax Act imposes a 6% tax on the first $7,000 of each employee’s annual wages.5Office of the Law Revision Counsel. 26 USC 3301 – Rate of Tax Employers in states without a credit reduction pay an effective rate of 0.6% thanks to a 5.4% credit for paying state unemployment taxes on time, which caps FUTA at $42 per employee per year.6Employment & Training Administration – U.S. Department of Labor. FUTA Credit Reductions
State Unemployment Tax
States levy their own unemployment insurance tax on employers. Rates range from below 0.1% to more than 10% depending on the state, your industry, and your layoff history. New businesses are usually assigned a default rate until the state can calculate one based on experience. A few states also require a small employee contribution.
Benefits and Other Compensation
Voluntary benefits add to the per-employee cost: employer 401(k) matches, group health insurance premiums, life insurance, tuition reimbursement. Commissions and year-end bonuses count as payroll too. All of it is reported on your regular payroll tax filings.
A Note on Independent Contractors
Payments to independent contractors are not payroll and belong in neither of these buckets in the same way. Contractors handle their own taxes and receive a 1099 rather than a W-2, so there is no employer FICA, no FUTA, no state unemployment tax attached to what you pay them. The IRS evaluates whether a worker is an employee or a contractor based on behavioral control, financial control, and the type of relationship, with no single factor decisive.7Internal Revenue Service. 8Taxpayer Advocate Service (TAS). Employee or Independent Contractor, What Are the Tax Implications? Contractor cost still lands on the income statement, but where it lands follows the same logic as employee wages: production-facing work supports COGS, back-office work supports SG&A.