One of the most important indicators of production and economic activity of enterprises, which has a direct impact on financial performance is costs. The article defines the economic meaning of the concept of "costs", "production costs". Features of accounting and analytical support, organization of accounting and cost management, cost classification are considered. Classification is one of the methods of cognition and study of phenomena, processes, objects, which consists in their division into classes on the basis of certain features, properties and patterns of relations between them. The classification of costs helps to assess the costs incurred, to find possible features to increase cost efficiency and make the right decisions about their management. Classification of costs is the basis of their accounting, analysis and planning in the enterprise. Cost management takes into account such components as rationing, planning, cost accounting, deviation control and cost analysis, cost management and decision making. The problem of cost management is quite relevant for Ukrainian enterprises. Today, all businesses face the problem of applying International Financial Reporting Standards. The peculiarities of cost reflection according to International Financial Reporting Standards and National Accounting Standards (standards) are studied and analyzed. Achieving a high or sufficient level of each of the production or management processes of financial activities of economic entities must be accompanied by certain costs, the economic content of which will vary depending on the object. However, the owners (managers) of the enterprise or its individual structural unit must be clearly aware of what exactly the costs contribute to the creation and maintenance of the organization and their timely optimization.
The Conceptual Basis of Preparation and Submission of Financial Statements means true presentation, prevalence of substance over form, prudence, completeness. These requirements formed the basis for the formation of accounting principles in International Standards and, accordingly, in Ukraine.