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COST ACCOUNTING STANDARD ON “OVERHEADS”
The following is the text of the COST ACCOUNTING STANDARD 3 (CAS- 3) issued by the Council of the Institute of Cost and Works Accountants of India on “Overheads”. The standard deals with the method of collection, allocation, apportionment and absorption of overheads” In this Standard, the standard portions have been set in bold italic type. These should be read in the context of the background material which has been set in normal type.
1. Introduction 1.1 In Cost Accounting the analysis and collection of overheads, their allocation and apportionment to different cost centres and absorption to products or services plays an important role in determination of cost as well as control purposes. A system of better distribution of overheads can only ensure greater accuracy in determination of cost of products or services. It is, therefore, necessary to follow standard practices for allocation, apportionment and absorption of overheads for preparation of cost statements. 2. Objective 2.1 The standard is to prescribe the methods of collection, allocation, apportionment of overheads to different cost centres and absorption thereof to products or services on a consistent and uniform basis in the preparation of cost statements and to facilitate inter-firm and intra-firm comparison.
2.2 The standardization of collection, allocation, apportionment and absorption of overheads is to provide a scientific basis for determination of cost of different activities, products, services, assets, etc.
2.3 The standard is to facilitate in taking commercial and strategic management ` decisions such as resource allocation, product mix optimization, make or buy decisions, price fixation etc.
2.4 The standard aims at ensuring better disclosure requirement and transparency in the cost statement.
3. Scope 3.1 The standard should be followed for treatment of overheads by all enterprises including companies covered under Cost Accounting Records Rules issued in pursuant to Sec 209(1)(d) of the Companies Act, 1956 or under the provisions of any other Act, Rules and Regulations.
3.2 The standard shall be applied in Cost and Management Accounting practices relating to (a) Cost of products, services or activities (b) Valuation of stock (c) Transfer pricing (d) Segment Performance (e) Excise / Custom duty, VAT, Income Tax, Service Tax and other levies, duties and abatement fixation
(f) Cost statements for any other purpose
4. Definitions :
4.1 Overheads – Overheads comprise of indirect materials, indirect employee costs and indirect expenses which are not directly identifiable or allocable to a cost object in an economically feasible way.
Overheads are to be classified on the basis of functions to which the overheads are related ( Refer to ‘ Classification of cost’ – CAS-1), viz
- Production overheads
- Administrative overheads
- Selling overheads
- Distribution overheads
Overheads may also be classified on the basis of behaviour such as variable overheads, semi-variable overheads and fixed overheads.
Variable overheads comprise of expenses which vary in proportion to the change of volume of production. For example, cost of utilities etc. Fixed overheads comprise of expenses whose value do not change with the change in volume of production such as salaries, rent etc. Semi-variable overheads are partly affected by change in the production volume. They are further segregated into variable overheads and fixed overheads
Any items of overheads arising out of abnormal situation in business activity should not be treated as overheads. They are charged to Costing Profit and Loss Account. Items not related to business activities such as donation, loss / profit on sale of assets etc are also not to be treated as overheads.
Borrowing cost and other financial charges including foreign exchange fluctuations will not form the part of overheads.
4.2 Collection of Overheads - Collection of overheads means the pooling of indirect items of expenses from books of account and supportive/ corroborative records in logical groups having regards to their nature and purpose.
Overheads are collected on the basis of pre-planned groupings, called cost pools. Homogeneity of the cost components in respect of their behaviour and character is to be considered in developing the cost pool. Variable and fixed overheads should be collected in separate cost pools under a cost centre. A great degree of homogeneity in the cost pools are to be maintained to make the apportionment of overheads more rational and scientific. A cost pool for maintenance expenses will help in apportioning them to different cost centres which use the maintenance service.
5. Apportionment and absorption of Production Overheads
5.1 Overheads are to be apportioned to different cost centres based on following two principles : i) Cause and Effect - Cause is the process or operation or activity and effect is the incurrence of cost. Apportionment of overheads based on this criterion ensures better rationality as it is guided by the relationship between cost object and cost.
ii) Benefits received – overheads are to be apportioned to the various cost centres in proportion to the benefits received by them.
5.2 Primary Distribution of overheads : Basis of primary apportionment of items of production overheads is to be selected to distribute them among the cost centres following the above two principles as given above in 5.1.
Basis of apportionment must be rational to distribute overheads. Once the base is selected, the same is to be followed consistently and uniformly. However, change in basis for apportionment can be adopted only when it is considered necessary due to change in circumstances like change in technology, degree of mechanization, product mix, etc. In case of such changes, proper disclosure in cost records is essential.
Examples of basis of primary distribution of some items of production overheads Item of Cost Basis of Apportionment
Power Fuel Jigs, tools & fixtures Crane hire charges Supervisors’ salary & fringe benefits Labour welfare cost Rent & rates Insurance Depreciation
(H.P. rating of Machines x hours x LF * Consumption rate x hour Machine hours or Man hours Crane hours or weight of materials handled Number of employees Number of employees Floor or Space area Value of fixed asset Value of fixed asset
5.3 Secondary Distribution of Overheads : Secondary distribution of overheads may be done by following either Reciprocal basis or Non-Reciprocal Basis. While reciprocal basis considers the exchange of service among the service departments, non-reciprocal basis considers only one directional service flow from a service cost centre to other production cost centre(s).
5.4 Secondary Apportionment of Overheads on Reciprocal Basis The services rendered by certain service cost centres are also utilized by other service cost centres. In reciprocal secondary distribution, the cost of service cost centres are
apportioned to production cost centres as well as other service cost centres. In such case, any one of the following three methods may be followed : I. Repeated Distribution Method II. Trial & Error Method III. Simultaneous Equation Method
5.4.1 Repeated Distribution Method Steps to be followed under this method are : i) The proportion at which the costs of a service cost centres are to be distributed to production cost centres and other service cost centres are determined. ii) Costs of first service cost centres are to be apportioned to production cost centres and service cost centres in the proportion as determined in step (i). iii) Similarly, the cost of other service cost centres are to be apportioned. iv) This process as stated in (ii) and (iii) are to be continued till the figures remaining undistributed in the service cost centres are negligibly small. The negligible small amount left with service centre may be distributed to production cost centres.
For example, refer to Exhibit 1
5.4.2 Trial and Error Method This method is to be followed when the question of distribution of costs of service cost centres which are interlocked among themselves arises. In the first stage, gross costs of services of service cost centres are determined and then in the second stage, costs of service centres are apportioned to production cost centres. Steps to be followed : i) The proportion at which the costs of a service cost centre to be distributed to production cost centres and other service cost centres is determined. ii) Cost of first service cost centre is distributed to the other service centres in the proportion of service they received from the first as assessed in step (i). iii) In the next step, total cost of second service cost centre so arrived has to be distributed to the other service centres in the proportion of service they received from the second as assessed in step (i). iv) Similarly, the cost of other service cost centres are to be apportioned to the service cost centres. v) This process as described in (iii) and (iv) is to be continued till the figures remaining undistributed in the service cost centres are negligibly small. vi) At the last, total cost of service cost centres to be distributed to production cost centres.
For example, refer to Exhibit 2
5.4.3 Simultaneous Equation Method The simultaneous equation method is to be adopted to take care of secondary distribution of cost of service cost centres to production cost centres with the help of mathematical formulation and solution. Steps to be followed :
i) Proportion of service benefits received by different cost centres from a cost centre are assessed on the basis of records
5.8 Absorption of Production overheads : Production Overheads absorption rate for each cost centre is to be determined with the help of quantum base as indicated in 5.6 above and the formula as indicated below :
_Fixed overheads Fixed overheads absorption rate = ______________________________
Normal or actual quantum of base, whichever is higher
_Variable overheads Variable overheads absorption rate = _______________________
Actual quantum of base
5.9 A pre-determined rate may be used on a provisional basis for internal management decision making such as cost estimates for quotation, fixation of selling price etc. These rates are to be calculated for each cost centre for a particular period. Budgeted overheads for the respective cost centres for the period concerned are to be taken as numerator and budgeted normal base for the period as denominatotr for determining the rate. Budgeted Overheads for the period Pre-determined overhead Rate = _______________________________ Budgeted normal base for the period
The amount of total overheads absorbed by a product, service or activity will be the sum total of the overheads absorbed from individual cost centres on pre-determined basis. The difference between overheads absorbed on pre-determined basis and the actual overheads incurred is the under- or over-absorption of overheads.
The under- or over- absorption of overheads is mainly due to variation between the estimation and actual.
6. Apportionment and absorption of Administrative Overheads
6.1 Administrative overheads include the following items of cost : Printing and stationery, other office supplies Employees cost – salaries of administrative staff Establishment expenses – Office rent & rates, insurance, depreciation of office building and other assets, legal expenses, audit fees, bank charges etc.
6.2 Administrative overheads are to be collected in different cost pools such as :
- General Office
- Personnel department
- Accounts department
- Legal department
- Secretarial department etc
6.3 Administrative overheads are to be further analysed into two – one for production activities and other for sales and distribution activities. Costs collected under the cost pools indicated in 6.2 above are to be distributed to administrative overheads relating to production activities and administrative overheads relating to selling and distribution activities on rational basis for each cost pool.
6.4 Administrative overheads relating to production activities are to be apportioned to different production cost centres on the basis conversion costs of production cost centres. The apportioned overheads are absorbed to products on the basis of the normal capacity or actual capacity, whichever is higher.
In case of under-absorption or over-absorption of administrative overheads relating to production, the same shall also be adjusted with Costing Profit & Loss Account.
- Apportionment and absorption of Selling overheads and Distribution overheads
7.1 The selling overheads and distribution overheads are collected under different cost pools such as : Selling Overheads : (i) Sales Employees cost (ii) Rent (iii) Traveling expenses (iv) Warranty claim (v) Brokerage & Commission (vi) Advertisement relating to sales and sales promotion (vii) Sales incentive (viii) Bad debt etc
Distribution Overheads : (i) Secondary Packaging (ii) Freight & forwarding (iii) Warehousing & storage (iv) Insurance etc.
7.2 Some items of selling overheads and distribution overheads are directly identified and absorbed to products or services and remaining part of selling and distribution overhead along with the with share of administration overheads relating to selling and distribution activities are to be apportioned to various products or jobs or services on the basis of net actual sales value (i.e. Gross sales value less excise duty, sales tax and other government levies).
Exhibit 2 Reciprocal Overhead Apportionment : Trial & Error Method Production Department Service Department Machine Assembly Finishing Stores Repair Ratio of apportionment from Stores 50% 20% 15% 15% Ratio of apportionment from Repair 40% 35% 15% 10% Distribution from Primary Distribution 35500.00 31900.00 14800.00 5000.00 6000. Distribution between service centres Stores Dept. 0.00 750. Total 5000.00 6750. Repairs & Maintenance To stores 675.00 0 Stores Dept. to Repair & Maint 0.00 101. Repairs & Maintenance To stores 10.13 0. Stores Dept. to Repair & Maint 0.00 1. Repairs & Maintenance To stores 0.15 0. Stores Dept. to Repair & Maint 0.00 0. Gross cost of service cost centres 5685.28 6852. Stores to Production cost centres 2842.63 1137.06 852.79 -5685. Repairs & Maint to Production centres 2741.14 2398.46 1027.92 -6852. Total 41083.77 35435.52 16680.71 0 0
Exhibit 3 Reciprocal Overhead Apportionment : Simultaneous Equation Method Production Departments Service Departments Machine Assembly Finishing Stores Repair Ratio of apportionment from Stores 50% 20% 15% 15% Ratio of apportionment from Repair 40% 35% 15% 10% Distribution from Primary Distribution 35500.00 31900.00 14800.00 5000.00 6000.
Let x, y be Store Dept and Repair & Maintenance Dept expenses respectively.
x - 0.10y = 5000
Solving x = 5685.28 , y = 6852.
Now, distribution of expenses will be as follows : Production Departments Service Departments Machine Assembly Finishing Stores Repair Ratio of apportionment from Stores 50% 20% 15% 15%
Ratio of apportionment from Repair 40% 35% 15% 10% Amounts from Primary Distribution 35500.00 31900.00 14800.00 5685.28 6852. Stores to Production cost centres 2842.63 1137.06 852.79 -5685. Repairs & Maint to Production centres 2741.14 2398.46 1027.92 -6852. Total 41083.77 35435.52 16680.71 0 0
Exhibit 4
Non-Reciprocal Overheads Apportionment
Primary Distribution Production Departments Service Departments Expenses Basis of allocation / apportionment
Total (Rs.)
Machine Shop
Assemb ly Shop
Finishing Dept
Stores Repairs & Maint.
Consumable stores Supervision Rent & Rates Insurance Depreciation Power Light & Heat
Direct Materials Direct Wages Area Asset Value Asset Value H.PxHoursx LF Area
15, 22, 10, 2, 30, 9, 4,
5, 7, 3, 800 12, 5, 1,
6, 5, 2, 900 13, 3, 800
2, 6, 2, 200 3,
1,
600 2, 1, 50 750
400
1, 1, 1, 50 750
600 Total 93,200 35,500 31,900 14,800 5,000 6,
Secondary Distribution Production Departments Service Departments Expenses Basis of allocation / apportionment
Total (Rs.)
Machine Shop
Assembly Shop
Finishing Dept
Stores Repairs & Maint.
Primary dist. ( earlier Table) Stores
Repairs & Maint
Direct Material ( 9 : 6 :5) Direct ( 2: 3: 1)
93,200 35,
2,
2,
31,
1,
3,
14,
1,
1,
5,
6,
93,200 39, 750 36.400 17,050 0 0
