Overheads

Under-absorption (Under-recovery): Occurs when the actual overheads incurred are more than the overheads absorbed into production. This means that the overheads charged to production were insufficient to cover the actual indirect costs.

Over-absorption (Over-recovery): Occurs when the actual overheads incurred are less than the overheads absorbed into production. This means that the overheads charged to production were more than the actual indirect costs.

Causes: Differences between estimated and actual overheads, or between estimated and actual activity levels (e.g., production volume, machine hours).

Treatment in Cost Accounts:

1. Supplementary Rate Method: A supplementary rate is calculated to adjust the absorbed overheads. This rate is applied to work-in-progress, finished goods, and cost of sales. This method is used when the amount of under/over absorption is significant.
2. Carrying Forward to Next Period: The under/over absorbed amount is carried forward to the next accounting period. This is generally not preferred as it distorts the costs of the current period.
3. Transfer to Costing Profit and Loss Account: The under/over absorbed amount is transferred to the Costing Profit and Loss Account. This is suitable when the amount is small or due to abnormal factors.

The choice of method depends on the materiality of the amount and the reason for the variance.

Administrative overheads are indirect costs related to general management and administration of an organisation, not directly related to production, selling, or distribution. Their treatment in cost accounting can vary:

1. As a Separate Cost Element: Traditionally, administrative overheads are treated as a separate cost element and are not included in the cost of production. They are charged directly to the Costing Profit and Loss Account in the period they are incurred. This approach is common when administrative functions are viewed as supporting the entire business rather than specific production units.
2. Apportionment to Production/Selling & Distribution: In some cases, especially when administrative functions are closely linked to other functions, administrative overheads might be apportioned to production, selling, and distribution departments. For example, general office expenses might be apportioned to factory and sales offices.
3. Inclusion in Cost of Production (Limited Scope): Under certain circumstances, a portion of administrative overheads that are related to production activities (e.g., production planning, quality control administration) might be included in the cost of production for inventory valuation purposes, especially if they are considered 'production overheads' under AS 2. However, general administrative overheads are usually excluded from inventory cost.

The most common approach for CA Inter level is to treat them as period costs, charged to the Costing P&L A/c.

A blanket overhead rate is a single, plant-wide rate used to absorb overheads for the entire factory. A departmental rate involves calculating a separate rate for each production department, which is more accurate when different products pass through different departments for varying lengths of time.

These are three distinct steps in the process of assigning overheads to cost units:

1. Allocation: It is the assignment of whole items of cost to cost centres or cost units. When an overhead can be directly identified with a specific cost centre, it is allocated to that centre.
   • Example: Salary of a factory supervisor directly supervising a specific production department is allocated to that department. Depreciation of a machine used exclusively in one department is allocated to that department.
2. Apportionment: It is the distribution of overheads among various cost centres on an equitable basis. When an overhead cannot be directly identified with a single cost centre but benefits multiple centres, it is apportioned.
   • Example: Factory rent is apportioned among various departments based on the floor area occupied by each department. Electricity cost is apportioned based on meter readings or horsepower of machines.
3. Absorption: It is the process of charging the overheads distributed over various cost centres to individual cost units or jobs. This is done using an overhead absorption rate (e.g., per unit, per machine hour, per labour hour).
   • Example: If the overhead absorption rate for a department is ₹10 per machine hour, and a product takes 5 machine hours, then ₹50 (5 hours * ₹10/hour) of overheads are absorbed by that product.

Idle time refers to the period during which workers or machines remain idle without performing any productive work. It can be classified as normal or abnormal.

Normal Idle Time: This is unavoidable and inherent in the production process (e.g., time for machine setup, tea breaks, personal needs). The cost of normal idle time is usually treated as a part of production overheads and absorbed into the cost of production.

Abnormal Idle Time: This is caused by unexpected and avoidable factors (e.g., power failure, machine breakdown, shortage of materials, strikes, lockouts). The costs associated with abnormal idle time (e.g., wages paid to idle workers, fixed overheads for idle machines) are considered abnormal losses.

Treatment of Abnormal Idle Time Overheads: The cost of abnormal idle time is not included in the cost of production. Instead, it is charged directly to the Costing Profit and Loss Account as an abnormal loss. This ensures that the cost of production reflects only the costs of efficient operations and that abnormal inefficiencies do not inflate product costs, which could lead to incorrect pricing decisions.

Selecting the most appropriate overhead absorption rate is crucial for accurate product costing and effective management decisions. Key factors to consider include:

1. Nature of the Industry and Production Process:
   • Labour-intensive: Direct Labour Hour Rate or Percentage of Direct Labour Cost is suitable.
   • Machine-intensive: Machine Hour Rate is more appropriate.
   • Uniform Production: Rate per Unit of Production might be feasible.
2. Nature of Overheads: The base chosen should have a direct causal relationship with the overheads being absorbed. For example, material handling costs are better absorbed based on direct material cost.
3. Accuracy vs. Simplicity: A more sophisticated method might provide greater accuracy but could be more complex and costly to implement. A balance needs to be struck.
4. Cost and Benefit: The benefit derived from increased accuracy should outweigh the cost of implementing and maintaining a more complex system.
5. Management Objectives: The rate chosen should support management's objectives, such as cost control, pricing, or performance evaluation.
6. Availability of Data: The necessary data for calculating the rate (e.g., machine hours, labour hours) must be readily available and reliable.
7. Stability of Production: If production volume fluctuates significantly, a time-based rate (like labour/machine hour) based on normal capacity might be more stable than a percentage of direct cost or per-unit rate.
8. Impact on Product Costing: The chosen method should result in product costs that are fair and reasonable, reflecting the resources consumed.

These are two stages in the apportionment of overheads:

1. Primary Distribution (Departmentalisation of Overheads): This is the first stage where all factory overheads (both production and service department overheads) are initially allocated or apportioned to all production and service departments. The aim is to collect all overheads attributable to each department. This is done using appropriate bases for each overhead item (e.g., rent by floor area, depreciation by asset value, power by machine hours/HP).
2. Secondary Distribution (Re-apportionment of Service Department Overheads): In this stage, the overheads accumulated in service departments (e.g., maintenance, stores, canteen) are re-apportioned to the production departments. Service departments do not directly produce goods but support production departments. Therefore, their costs must ultimately be borne by the production departments to arrive at the full cost of production. This re-apportionment can be done using methods like direct redistribution, step-ladder method, or reciprocal methods (simultaneous equation, repeated distribution).

Classifying overheads by behavior (fixed, variable, semi-variable) is fundamental for effective cost management and decision-making:

1. Cost Control:
   • Fixed Overheads: Require long-term planning and strategic decisions for control (e.g., capacity planning, lease agreements). They are often non-controllable in the short run.
   • Variable Overheads: Are controllable in the short run and can be managed by optimizing operational efficiency (e.g., reducing indirect material waste, efficient power usage).
2. Decision Making:
   • Marginal Costing: This technique relies entirely on separating fixed and variable costs to determine contribution margin, which is crucial for pricing, make-or-buy, product mix, and acceptance of special orders.
   • Break-Even Analysis: Understanding fixed and variable costs is essential for calculating the break-even point and margin of safety.
   • Budgeting and Forecasting: Helps in preparing flexible budgets that adjust for varying activity levels, providing more realistic performance targets.
3. Pricing Decisions: Helps in setting prices, especially in competitive markets, by understanding the minimum variable cost to cover and the impact of fixed costs on profitability at different volumes.
4. Performance Evaluation: Facilitates variance analysis by distinguishing between volume variances (related to fixed costs) and efficiency variances (related to variable costs).
5. Responsibility Accounting: Assigns responsibility for controllable costs to specific managers, improving accountability.

Overheads are the aggregate of indirect material, indirect labour, and indirect expenses. They are costs that cannot be directly traced to a specific cost unit or cost centre but are incurred for the general operation of the business.

Classification by Function:

1. Production/Factory Overheads: Indirect costs incurred in the factory (e.g., factory rent, depreciation of plant, indirect wages).
2. Administration Overheads: Costs related to general management and administration (e.g., office salaries, legal expenses, office rent).
3. Selling Overheads: Costs incurred to create and stimulate demand and secure orders (e.g., advertising, sales salaries, commission).
4. Distribution Overheads: Costs incurred from making the product available for dispatch to the customer (e.g., warehouse rent, delivery van expenses, packing for dispatch).

Classification by Behavior:

1. Fixed Overheads: Remain constant in total regardless of changes in activity level within a relevant range (e.g., factory rent).
2. Variable Overheads: Change in total in direct proportion to changes in activity level (e.g., indirect materials, power for machines based on usage).
3. Semi-Variable Overheads: Partially fixed and partially variable (e.g., telephone bills with a fixed rental and variable call charges).

Classification by Element: Indirect Material, Indirect Labour, Indirect Expenses.

Capacity utilization has a significant inverse relationship with the per-unit cost of fixed overheads.

Fixed Overheads in Total: Fixed overheads (e.g., factory rent, depreciation of machinery, salaries of permanent staff) remain constant in total, regardless of the level of production, within a relevant range.

Impact on Per Unit Cost: When production volume (capacity utilization) increases, the same total fixed overheads are spread over a larger number of units. Consequently, the fixed overhead cost per unit decreases. Conversely, if production volume decreases, the fixed overhead cost per unit increases, as the fixed costs are spread over fewer units.

Example: If total fixed overheads are ₹1,00,000:

• At 10,000 units (100% capacity), fixed overhead per unit = ₹10 (₹1,00,000 / 10,000 units).
• At 5,000 units (50% capacity), fixed overhead per unit = ₹20 (₹1,00,000 / 5,000 units).

This phenomenon highlights the importance of operating at higher capacity utilization to achieve economies of scale and reduce per-unit costs, which is critical for competitive pricing and profitability.

Overheads are absorbed into production using various rates, chosen based on the nature of the industry and the overheads themselves:

1. Percentage of Direct Material Cost Method: Suitable when overheads are closely related to material usage (e.g., material handling, storage costs).
2. Percentage of Direct Labour Cost Method: Appropriate when labour is the dominant factor of production and overheads are largely dependent on labour time or cost (e.g., labour-intensive industries).
3. Percentage of Prime Cost Method: Used when both direct materials and direct labour contribute significantly to overheads. It's a simpler, combined approach.
4. Direct Labour Hour Rate Method: Most suitable when production is labour-intensive and overheads are primarily time-related (e.g., supervision, indirect labour).
5. Machine Hour Rate Method: Ideal for machine-intensive industries where production is primarily carried out by machines, and overheads are largely related to machine usage (e.g., depreciation, power, repairs of machines).
6. Rate Per Unit of Production Method: Applicable when all units produced are identical or very similar, and the output is uniform. It's simple but less accurate for diverse products.

The choice of method depends on factors like the nature of the industry, the type of overheads, the relative importance of different cost elements, and the desired accuracy. The goal is to select a base that has a direct causal relationship with the overheads.

Proper accounting and control of overheads are essential for several reasons:

1. Accurate Product Costing: Overheads form a significant portion of total product cost. Incorrect treatment can lead to misstated product costs, affecting pricing decisions and profitability analysis.
2. Pricing Decisions: Accurate overhead absorption is crucial for setting competitive and profitable selling prices.
3. Cost Control and Reduction: Understanding the nature and behavior of overheads (fixed, variable) helps in identifying areas for cost reduction and improving operational efficiency.
4. Performance Measurement: Comparing actual overheads with budgeted overheads helps in evaluating departmental performance and identifying variances.
5. Inventory Valuation: As per AS 2 (Valuation of Inventories), overheads (specifically production overheads) are included in the cost of inventories. Incorrect overhead treatment impacts inventory valuation and, consequently, profit.
6. Decision Making: Information on overheads is vital for various management decisions such as make-or-buy, product mix, capacity utilization, and discontinuing a product line.

Allocation: Directly assigning whole items of cost to a specific cost center. Apportionment: Distributing overhead costs over several cost centers on a fair and equitable basis (e.g., rent based on floor area). Absorption: The process of charging the total overheads of a production department to the products/jobs passing through it, using rates like machine hour rate or labor hour rate.

Direct costs are those costs that can be directly identified with and allocated to a specific cost unit or cost centre (e.g., direct materials, direct labour). Overheads, on the other hand, are indirect costs that cannot be directly traced to a specific cost unit and are incurred for the general operation.

The distinction is crucial for cost control because:

1. Accuracy in Costing: Direct costs are precisely assigned, while overheads require allocation, apportionment, and absorption, which introduces estimation. Proper distinction ensures accurate product costing.
2. Cost Control & Responsibility: Direct costs are often controllable at the operational level (e.g., material usage by production manager). Overheads, especially fixed ones, are often less controllable at lower levels and require management attention at higher levels.
3. Decision Making: For decisions like pricing, make-or-buy, or accepting special orders, understanding the variable and fixed components (often linked to direct vs. indirect) is vital. Marginal costing relies heavily on this distinction.
4. Performance Evaluation: Separating direct and indirect costs helps in evaluating the efficiency of different departments or processes.

Selling Overheads: Costs incurred to create and stimulate demand and secure orders (e.g., advertising, sales salaries, commission, market research).

Distribution Overheads: Costs incurred from making the product available for dispatch to the customer (e.g., warehouse rent, delivery van expenses, packing for dispatch, freight outwards).

Treatment: Selling and distribution overheads are generally treated as period costs and are charged to the Costing Profit and Loss Account in the period they are incurred. They are typically not included in the cost of production or inventory valuation (as per AS 2, these are not production overheads). They are usually collected department-wise (e.g., sales department, dispatch department) and then analyzed by product, territory, customer, or sales channel for control and decision-making.

Control: Controlling selling and distribution overheads is crucial due to their often significant and variable nature. Methods include:

1. Budgetary Control: Setting budgets for various selling and distribution activities and comparing actuals against them.
2. Standard Costing: Establishing standard costs for activities like advertising, sales calls, or delivery.
3. Variance Analysis: Analyzing deviations from budgets/standards to identify inefficiencies.
4. Activity-Based Costing (ABC): More accurately assigning these overheads to specific products, customers, or channels based on activities performed.
5. Sales Force Management: Optimizing sales force size, territories, and compensation structures.
6. Logistics Optimization: Efficient route planning, warehouse management, and inventory control.