Advantages of Cost Accounting:
(a) Cost accounting is an aid to management. It enables management to maintain effective control over inventory, to maximize efficiency, and to minimize wastages and losses by providing detailed costing information, it facilitates delegation of responsibility for important tasks and rating of employees. It helps cost estimation and price fixation.
(b) It is an aid to creditors. Investors, banks and other financial institutions benefit immensely by the installation of an efficient costing system. They can rely on costing records to form their judgment about the profitability and future of the firm.
(c) It is an aid to employees. Employees are benefited in a number of ways by the installation of an efficient costing system. For example, they are benefited, through continuous employment and higher remuneration by way of incentives, bonus plans, etc.
(d) It is an aid to nation. Costing system boost up the government revenue by bringing prosperity to the business firms. Cost reduction, cost control, and elimination of wastes and inefficiencies lead to the progress of the nation as a whole.
Disadvantages of Cost Accounting:
Despite its advantages to various parties such as management, employees, creditors, etc., cost accounting has certain inherent limitations or deficiencies, which pave the way for the emergence of management accounting.
Any costing system needs to conform to the nature and character of the business firm and this affects the uniformity and universality of any such system.
Costing data are essentially ‘post facto’ and historical in nature. However, different forms of predetermined cost systems such as estimating costing, standard costing, etc rectify this limitation. But they are also notional costs, which enhance the degree of approximation and therefore limit accuracy.
Cost accounting system is also based on conventional treatment certain items such as depreciation, capital and revenue expenditure, fixed costs, wastes, and intangible assets, etc. This necessarily introduces subjective elements into the whole process.
Cost accounting depends heavily on the interpretation rather than on the actuality of collected information. This is a part of its role in managerial assistance. However, this tends to make the system more interpretative than factual.
Installation of cost accounting system is costly, which small firms cannot afford to have. Such firms find it unnecessary, for the financial accounting system itself can take of costing information.