Which statement is not a characteristic of marginal costing?

Which statement is not a characteristic of marginal costing?

• A. Focuses on variable costs for decision making.
• B. Fixed costs are treated according to their nature.
• C. Profit depends on sales rather than production activity.
• D. Costs must be analyzed into fixed and variable parts.

Answer: (D)

Marginal costing focuses on the variable costs that change with the level of output and treats fixed costs as period charges that aren’t allocated to unit costs. The idea is to look at contribution from sales (sales minus variable costs) and then subtract fixed costs to get profit. Because of this, decisions hinge on how much variable cost per unit is incurred and how sales volumes affect contribution, rather than on how every cost item is split into fixed and variable. The option that isn’t a defining feature is the statement that costs must be analyzed into fixed and variable parts. In marginal costing, you concentrate on the incremental (variable) costs and treat fixed costs as period costs, so a strict requirement to partition all costs into fixed and variable isn’t the core characteristic of the method. This is why the other statements align with marginal costing, while this one does not.

Marginal costing focuses on the variable costs that change with the level of output and treats fixed costs as period charges that aren’t allocated to unit costs. The idea is to look at contribution from sales (sales minus variable costs) and then subtract fixed costs to get profit. Because of this, decisions hinge on how much variable cost per unit is incurred and how sales volumes affect contribution, rather than on how every cost item is split into fixed and variable.

The option that isn’t a defining feature is the statement that costs must be analyzed into fixed and variable parts. In marginal costing, you concentrate on the incremental (variable) costs and treat fixed costs as period costs, so a strict requirement to partition all costs into fixed and variable isn’t the core characteristic of the method. This is why the other statements align with marginal costing, while this one does not.