Absorption costing is defined as:

Absorption costing is defined as:

• A. A costing method used only for internal decision making.
• B. A method that assigns only variable production costs to inventory.
• C. A valuation method that excludes fixed production costs from inventory.
• D. A method that includes all production costs in inventory valuation and is required for external reporting.

Answer: (D)

Absorption costing includes all production costs—both variable and fixed—in the cost of inventory. This means fixed production overhead is allocated to each unit produced, so inventory on the balance sheet carries a portion of those fixed costs until the goods are sold. External financial reporting requires this full cost treatment, so inventory valuation under absorption costing includes both variable and fixed production costs. The other descriptions describe variable costing (which includes only variable production costs and is often used for internal decision making), or claim fixed costs are excluded, or say it’s only for internal purposes. Thus, the correct characterization is that all production costs are included in inventory valuation and external reporting requires it.

Absorption costing includes all production costs—both variable and fixed—in the cost of inventory. This means fixed production overhead is allocated to each unit produced, so inventory on the balance sheet carries a portion of those fixed costs until the goods are sold. External financial reporting requires this full cost treatment, so inventory valuation under absorption costing includes both variable and fixed production costs. The other descriptions describe variable costing (which includes only variable production costs and is often used for internal decision making), or claim fixed costs are excluded, or say it’s only for internal purposes. Thus, the correct characterization is that all production costs are included in inventory valuation and external reporting requires it.