Which of the following lists best describes the classification of manufacturing costs?

Manufacturing costs are classified into three main categories: direct materials, direct labor, and manufacturing overhead. These categories help organizations determine product costs, pricing strategies, and financial reporting.

Why Option B (Overhead costs, direct labor, direct materials) is Correct:

Direct materials: Raw materials used directly in production (e.g., wood for furniture).

Direct labor: Labor costs directly tied to production (e.g., factory workers assembling a product).

Manufacturing overhead: Indirect costs related to production (e.g., depreciation, factory utilities, maintenance).

These categories align with GAAP, IFRS, and cost accounting standards.

Why Other Options Are Incorrect:

Option A (Direct materials, indirect materials, raw materials):

"Indirect materials" and "raw materials" are part of manufacturing overhead and direct materials, respectively, but do not form a primary cost classification.

Option C (Direct materials, direct labor, depreciation on factory buildings):

Depreciation on factory buildings is an overhead cost, not a separate category.

Option D (Raw materials, factory employees' wages, production selling expenses):

Selling expenses are not part of manufacturing costs; they are part of operating expenses.

IIA Practice Guide – Auditing Cost Management: Defines manufacturing cost classifications.

IFRS & GAAP Cost Accounting Standards: Outline manufacturing cost components.

COSO Framework – Cost Control Guidelines: Emphasizes accurate cost allocation in financial reporting.

IIA References: