The final work of the title „Concept of relevant information for decision-making when introducing a new product" deals with the importance of internal and external information when deciding on introducing a new product. Successful information management is important for the enterprise and in this paper its significance will be emphasized as a function od accounting. Today, the information system has become a necessity in a global business system, so making a company easier to make decisions about a new product must be based on knowledge of accounting information, as well as laws that are a precondition for achieving the goals. The idea of introducing new products is usually derived from the wishes and needs of consumers. For business, introducing a new product is a risky process for fear of failure. Today, companies pay close attention to business profitability. The profitability of the business is influenced by the accounting methods used to monitor and analyze the cost of introducing a new product. The paper costs are characterized as important internal information that is the one vided intro three categories: cost od direct materials, direct lahor costs and production costs. With cost, internal information is still planning and controlling. While external product information is characterized as the importance of procurement and sales. Also, in the business, the laws of the Republic od Croatia have a great role to play. The paper describes three laws that are important for creating a new product, namely: the Industrial Design Act, the Product Safety Act, and the Patent Act. The company's goal is to place on the market a produce that is significantly different from the competition, and it has to take into account the economics of business progress, where the task is to have accounting.