Abnormal spoilage definition
/What is Abnormal Spoilage?
Abnormal spoilage is that amount of scrap generated by a production process that exceeds the normal, expected level. The cost of this excess spoilage is charged to expense as incurred. It is never capitalized into inventory. A standard management function is to continually investigate and remediate the causes of abnormal spoilage, thereby reducing costs and increasing profits.
Accounting for Abnormal Spoilage
The cost of abnormal spoilage is charged to expense as soon as the spoilage is detected. This treatment differs from the accounting for normal (expected) spoilage, which is absorbed into the cost of all good units produced. For example, a company produces 10,000 units during the month. Normal spoilage is expected to be 2% of production, or 200 units. Actual spoilage is 300 units, so 100 units are abnormal spoilage.
Assume the production cost per unit is $25. The abnormal spoilage cost is calculated as follows:
100 units × $25 = $2,500
The abnormal spoilage is charged directly to expense, because it does not represent a normal cost of production. The related journal entry is as follows:
This entry removes the abnormal spoilage cost from work in process and reports it as a loss within the current period. The remaining production costs, including the cost of normal spoilage, stay in inventory and are assigned to the good units produced.
Causes of Abnormal Spoilage
Abnormal spoilage has many causes, including the following:
Equipment failure. Malfunctioning machinery can produce defective products.
Human error. There are several types of human error that can cause abnormal spoilage, including improper inventory handling, lack of production training, and measurement miscalculations.
Substandard materials. The use of low-quality or defective raw materials can cause abnormal spoilage, as can the improper storage of raw materials.
Inefficient processes. Inefficient or poorly designed production methods can lead to excess waste.
External factors. Natural disasters or environmental conditions can cause abnormal spoilage, as can power outages.
Poor inventory management. Over-ordering can lead to the spoilage of perishable goods. In addition, improper storage conditions can cause spoilage.
Quality control issues. Inadequate quality checks may allow defects to go unnoticed until later stages of production.
Operational negligence. Failing to follow safety or operational protocols can cause abnormal spoilage.
Engineering defects. Faulty product designs can make products prone to damage.
Transportation and handling issues. Damage during shipping or delivery due to improper packaging or handling can cause abnormal spoilage, as can mishandling during internal transfers within a facility.
Identifying and addressing the root causes of abnormal spoilage can improve efficiency, reduce waste, and lower costs for businesses.
Example of Abnormal Spoilage
As an example of abnormal spoilage, a production process has an expected spoilage rate of 5%. A production run valued at $1,000,000 is initiated, for which the standard scrap cost is expected to be $50,000. The actual scrap amount turns out to be $58,000, so the abnormal scrap associated with the production run is $8,000 (calculated as $58,000 actual scrap minus $50,000 standard scrap).
Abnormal Spoilage FAQs
How does abnormal spoilage differ from normal spoilage?
Normal spoilage is the expected and unavoidable waste that naturally occurs in the production process under efficient operating conditions. Abnormal spoilage, by contrast, arises from unexpected events, inefficiencies, or errors, and it exceeds what is considered a standard level of loss. Because of this distinction, normal spoilage is treated as part of product cost, while abnormal spoilage is recorded as a period expense and charged against income.