The expansive development of information technology during the 1980's changed the nature and structure of operation costs. The aforementioned changes mainly relate to the increase in shares of general costs in the structure of total costs of an enterprise. Previously used traditional methods of cost management didn't support such changes which rendered management unable to have correct and timely information related to costs. In order to enable more precise cost management, a method of cost tracking based on activity, called ABC - Activity-Based-Costing, began being developed. The key to achieving competitive advantage of an enterprise on the market manifests itself in the correct determination of unit costs of production. An enterprise offering a similar or identical product for a lower price than the competition (based on real cost data), becomes more competitive on the market. All of this can be achieved by implementing the contemporary ABC method. ABC analysis reveals the connection between the unfolding of certain activities and the requirements that these activities place on the resources of an enterprise. The picture of profitability created through the analysis enables managers to focus on improving the exact activities which yield the greatest profit. The goal of this graduate thesis is to theoretically and practically research, analyze and apply a contemporary method of cost allocation based on activity displayed through the operation of an enterprise.