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Microlesson · 5-min read

Treatment of Spoiled and Defective Work in Job Costing

## Treatment of Spoiled and Defective Work

The accounting treatment of rectification cost / loss on defective work depends on why the defect arose — whether it is normal (legitimate cost of the job) or abnormal (written off to the Costing Profit & Loss Account).

### 1. Defectives within an allowed/normal percentage (unavoidable)

  • A normal rate of defectives is pre-established for the batch.
  • If actual defectives are within (or close to) the normal limit → rectification cost is charged to the whole job and spread over the entire output of the batch.
  • If actual defectives substantially exceed the normal limit → the excess rectification cost is written off as a loss in the Costing Profit & Loss Account.

### 2. Defect due to bad workmanship

  • Rectification cost is treated as an abnormal cost (not a legitimate element of cost) → written off as a loss, unless it can be recovered as a penalty from the workman.
  • Exception: if management had already provided for a proportion of defectives as unavoidable due to workmanship, that provided portion is treated as normal and charged to the batch.

### 3. Defect due to the Inspection Department wrongly accepting poor-quality incoming material

  • The rectification cost is charged to the Inspection Department, not to the cost of manufacture of the batch.
  • It is an abnormal costwritten off to the Costing Profit & Loss Account.

### Quick rule

> Normal loss → charge to job/batch (product cost). Abnormal loss → write off to Costing P&L A/c (or recover as a penalty / charge to the responsible department).

⚠️ Common exam mistakes

  • Charging the full rectification cost of an abnormal defect to the job instead of writing it off to the Costing P&L Account.
  • Forgetting the carve-out: where management pre-provides for some workmanship defectives, that provided portion is normal and charged to the batch — not all workmanship defects are abnormal.
  • Including in the cost of the batch the rectification cost arising from the Inspection Department's error — it must be charged to that department.
  • Spreading the entire defective cost over output even when actual defectives substantially exceed the normal limit; only the within-normal portion is spread, the excess is written off.
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