What is Absorption Costing?
Absorption costing is a method of costing that includes all direct and indirect costs associated with the production of a product. This approach is known as full costing because it absorbs both variable and fixed overhead costs into the cost of the product.
– Direct Costs: These include direct materials and direct labor involved in the production process. For example, if you are manufacturing cars, direct materials would include steel, rubber, and other components used in the car’s construction, while direct labor would be the wages paid to workers who assemble the cars.
– Indirect Costs: These are costs that cannot be directly attributed to a specific product but are necessary for production. They include variable manufacturing overhead (such as electricity used in production) and fixed manufacturing overhead (such as rent for the factory or the plant manager’s salary).
– Allocation of Fixed Overhead: One of the key features of absorption costing is how it allocates fixed overhead costs to each unit of a product. This allocation is typically done using activity measures like direct labor hours or machine hours.
Components of Absorption Costing
Understanding the components of absorption costing is essential for its accurate implementation.
Direct Costs
- Direct Materials: These are raw materials or components directly used in producing the product.
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Direct Labor: This includes wages paid to workers who are directly involved in producing the product.
Indirect Costs
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Variable Manufacturing Overhead: These costs vary with the level of production and include items like electricity, water, and maintenance supplies.
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Fixed Manufacturing Overhead: These costs remain constant regardless of the production level and include items like rent, insurance, and salaries of non-production staff.
Period Costs
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Period costs, such as selling, general, and administrative expenses, are not included in the product cost but are expensed in the period incurred. These costs do not directly relate to the production process but are necessary for running the business.
Calculation of Absorption Costing
Calculating absorption costs involves several steps:
1. Determine Direct Materials and Direct Labor Costs: Calculate the total direct materials and direct labor costs incurred during the period.
2. Calculate Variable and Fixed Manufacturing Overhead: Determine both variable and fixed manufacturing overhead costs.
3. Allocate Overhead Costs: Allocate these overhead costs to each unit produced using an activity measure such as direct labor hours or machine hours.
4. Calculate Unit Product Cost: Add up all the allocated costs (direct materials, direct labor, variable overhead, and fixed overhead) to determine the total cost per unit.
For example, if Bradley Company produces 10,000 units in a month with total fixed overhead of $50,000 and total variable overhead of $20,000, it would allocate these costs based on an activity measure like direct labor hours. If each unit requires 2 hours of direct labor and there are 20,000 labor hours in total:
[ \text{Fixed Overhead per Unit} = \frac{\$50,000}{10,000 \text{ units}} = \$5 \text{ per unit} ]
[ \text{Variable Overhead per Unit} = \frac{\$20,000}{10,000 \text{ units}} = \$2 \text{ per unit} ]
The total absorption cost per unit would then be:
[ \text{Total Absorption Cost per Unit} = \text{Direct Materials} + \text{Direct Labor} + \text{Variable Overhead} + \text{Fixed Overhead} ]
External Reporting and GAAP Compliance
Absorption costing is mandatory for external reporting under GAAP because it ensures compliance with the matching principle. By allocating all production costs (including fixed overhead) to the products produced during a period, absorption costing matches these costs with revenues generated during that same period.
This method also aligns with tax reporting requirements, making it a standard practice for companies preparing financial statements for external stakeholders.
Advantages of Absorption Costing
Absorption costing offers several advantages:
– GAAP Compliance: It adheres to GAAP requirements for external reporting.
– Accurate Profit Forecasting: By matching expenses with revenues in the same fiscal period, it provides a more accurate picture of profitability.
– Better Pricing Information: The inclusion of all production costs helps in setting realistic selling prices.
– Higher Net Income: Allocating fixed costs to inventory can result in higher net income when inventory levels increase.
Disadvantages of Absorption Costing
Despite its advantages, absorption costing has some drawbacks:
– Complexity in Calculations: Allocating fixed overhead can be complex and may require sophisticated accounting systems.
– Misleading Profit Levels: If inventory levels fluctuate significantly, the allocation of fixed costs can lead to misleading profit levels.
– Less Useful for Internal Decision-Making: Compared to variable costing methods, absorption costing may be less useful for internal decision-making due to its inclusion of fixed costs.
Impact on Financial Statements
Absorption costing significantly impacts both the balance sheet and income statement:
– Balance Sheet: Inventory values will be higher because they include allocated fixed overhead costs.
– Income Statement: Gross profit and net operating income calculations will reflect the costs allocated to units sold.