What is Natural Expense Classification?
Natural expense classification groups costs according to the type of economic resource a company consumed or paid for.
Examples include salaries and wages, employee benefits, rent, utilities, professional services, supplies, depreciation, and interest. FASB uses the term in ASU 2024-03, and the concept is useful because it answers a direct economic question: what kind of cost was incurred?
That differs from a Functional Expense Classification, which asks what business activity the cost supported.
Natural classification versus functional classification
Consider a company with engineers, factory workers, salespeople, and corporate staff.
Their wages are all employee compensation by nature. Functionally, however, those same costs could be distributed across research and development, Cost of Goods Sold, selling, or administrative expense.
The distinction can be summarized as:
- natural classification: what the company consumed or paid for;
- functional classification: why the cost was incurred or which activity used it.
Neither view is inherently superior. They answer different analytical questions.
Why investors care about natural costs
Natural expense information can reveal drivers that broad functional captions obscure.
For example, a company may report stable SG&A while the mix underneath changes from labor toward outside services. Another may show rising cost of sales because inventory purchases increased, while direct labor stayed flat. A capital-intensive business may report a larger depreciation component than an asset-light peer even when both use the same functional labels.
Natural classifications can help investors assess:
- labor intensity and wage sensitivity;
- exposure to rent, utilities, freight, or purchased inputs;
- depreciation and amortization burden;
- outsourcing versus internal staffing;
- whether a margin change reflects volume, price, mix, or cost inflation; and
- how comparable two similarly labeled expense captions really are.
Natural categories under ASU 2024-03
FASB's expense-disaggregation standard requires public business entities to disclose specified categories contained within relevant expense captions. Those include purchases of inventory, Employee Compensation Expense, depreciation, intangible-asset amortization, and certain oil-and-gas depreciation, depletion, and amortization.
The standard also defines natural expense classification broadly, with examples such as salaries and wages, benefits, professional services, supplies, interest, rent, utilities, and depreciation.
The required categories should not be mistaken for a universal master list of every natural expense. They are specified disclosures within a broader classification concept.
The same natural cost can appear in several places
A common analytical mistake is to assume that one natural expense belongs to one income-statement line.
Employee compensation can sit in cost of sales, R&D, selling expense, or general and administrative expense. Depreciation can be associated with manufacturing equipment, stores, data centers, offices, or other operations. Professional services can support product delivery or corporate functions.
That cross-functional distribution is one reason Expense Disaggregation can add information beyond the face of the income statement.
Limits of natural expense analysis
Natural classifications still require context.
A high payroll burden can reflect an inefficient organization, or it can reflect a valuable high-skill workforce. Large depreciation can indicate heavy past investment, but it does not by itself reveal current maintenance capital expenditure. Purchased inventory can move because of growth, inflation, supply-chain strategy, or inventory build decisions.
Natural expense detail improves visibility into cost composition. It does not eliminate the need to understand business economics, accounting policy, and period-to-period changes.
Sources and further reading
- FASB: ASU 2024-03, Disaggregation of Income Statement Expenses
- FASB: Disaggregation of Income Statement Expenses completed project summary
- CFA Institute: Analyzing Income Statements
Continue Research
Continue from the concept into the Grizzly Bulls research surface that best matches the next question. These links are research continuations, not recommendations or required steps.
Explore businesses with different cost intensity
Continue into company screening without treating natural expense categories as a fully normalized cross-company dataset.
Compare reported cost composition carefully
Use company comparison as context while preserving differences in disclosure scope, business model, and expense classification.
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