The IT productivity paradox is based on doubts about the usefulness of investing in information technologies. The fact is that even IT experts are not always aware of this problem, so in that case they don't even know how to deal with it. In this thesis, the problem of this paradox will be primarily defined, to further clarify the problems that arise later. It is becoming an increasingly large part of the human life cycle and business processes. Advances in information technology can be of great benefit, but understanding this paradox can contribute to maximizing business success. After defining the paradox, the theories that were the first to define and describe this paradox throughout history will be mentioned, and MacDonald's 5 stages of the development of this paradox throughout history will be clarified. To ultimately be able to conclude the differences between expected and actual benefits, it is first necessary to define the reasons for which the differences occur in the first place, and for a better understanding, there are examples from practice that best explain this. To be able to face the IT paradox of productivity, it is necessary to analyze how IT affects business today and what are the risks of large investments and the increasing use of information technologies. The usefulness of information technologies is growing and at the same time improves success by maximizing profit, but differences still exist in the Republic of Croatia compared to more developed countries, so this thesis will focus more on examples from Croatia for easier identification with the reality of business. Finally, the interviews that were made to examine the IT experts' awareness of the IT productivity paradox and their ways of dealing with it will be analyzed.