The goal of the research is the development of a management accounting system model that allows monitoring and analysis of innovative-investment costs and makes management decisions within the framework of implementation of the innovative-investment activity. The work applies the methodology of system analysis and synthesis. The result of the research consists of statement, theoretical justification, and solution of the question complex connected with improvement of information and analytical providing of management innovative and investment activities by means of introduction in accounting practice of the enterprises of the administrative account system. The methodological approach to the formation of the management accounting system proposed in this article will allow solving a number of tasks related to the management and control of the innovative and investment activity of the enterprise, including ensuring the efficiency of accounting. The availability of such information will allow to weigh carefully and make a final decision, taking into account the possible financial risks of the company. The introduction of the main provisions, recommendations, and results of the study contribute to the improvement of the methodological basis of management accounting innovation and investment activities of enterprises, the creation of an information base, and the preparation of innovation and investment decisions. The obtained results are useful for the construction of a full-fledged management accounting system for the costs of innovation and investment activities. Innovative and active enterprises should be able to manage their costs at all stages of a new product life cycle. In large measure, the solution of this problem will contribute to the organization of management accounting and cost control and financial results by the system of "direct costing" and "standard-cost".
