Question

State any two limitations of Job Costing.

Hint:

When evaluating costing methods, remember that Job Costing is highly reactive. It calculates actual costs only after a job is completed, making it difficult to control costs in real time compared to standard costing systems.

Answer 1

Step 1: Overview of Job Costing Characteristics:
Job costing is a specialized accounting system used when products or services are custom-made to fulfill specific customer orders. Because every job is unique, standard across-the-board costing cannot be applied. This custom-tailored approach introduces several unique administrative and mathematical challenges.

Step 2: Detailed Analysis of Two Major Limitations:
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• High Administrative Burden and Clerical Costs: Because every job is unique, managers must track and record material consumption, labor hours, and machine usage separately for each run. This requires continuous documentation, including issuing unique Material Requisition Notes, recording detailed labor hours on Time Sheets, and managing distinct Job Cards. Operating and auditing this system requires significant administrative effort, making it expensive to maintain.
• Subjective and Arbitrary Overhead Allocation Rates: While direct costs are easily traced back to a specific job, allocating indirect corporate overheads (such as factory rent, administrative salaries, and machinery depreciation) is much more challenging. Accountants must rely on a Predetermined Overhead Absorption Rate (POAR), calculated as: POAR = \frac{Estimated Budgeted Overheads}{Estimated Base Activity Level (e.g., Direct Labor Hours)} Because this rate relies on estimates, it frequently leads to under- or over-absorption of overheads, distorting the reported profitability of individual jobs and potentially leading to inaccurate pricing decisions.