Inventory conversion costs
Conversion costs include direct production labour and a systematic allocation of fixed and variable production overheads. Allocate variable overhead based on actual use of production facilities. Allocate fixed overhead systematically using normal capacity; unusually low output does not justify loading all idle capacity costs onto the few units produced. Selling and administrative costs generally do not form part of conversion. The allocation should reflect production activity and exclude amounts caused by abnormal waste.
Worked example
Factory workers' wages and allocated factory depreciation form part of conversion cost.
Common mistake
Direct materials are a separate cost of purchase or production, not conversion cost; abnormal waste is expensed.
Where it appears in your exams
| Qualification | Exam | Relationship | Period |
|---|---|---|---|
| ACCA | F1 | Direct | July 2027–August 2028 |
| ACCA | F2 | Direct | July 2027–August 2028 |
| ACCA | FA | Direct | September 2026–June 2027 |
| ACCA | K1 | Direct | July 2027–August 2028 |
| CIMA | BA2 | Direct | Official assessment-window verification pending |
| CIMA | F1 | Direct | Official assessment-window verification pending |
| FIA | FFA | Direct | September 2026–June 2027 |
Related terms
Also called: Inventories costs of conversion
