Public administration is strategically one of the most important areas of the functioning of each state, including the Republic of Croatia. Modernisation and improvement of the provision of public services must be imperative if a country wants to fulfil the social ambition of becoming a knowledge society. Information and communication technology today advances faster than ever in the history of mankind and plays a leading role in transforming the lifestyle of the entire population. This research aims to investigate the functionality of digital services in the Republic of Croatia and the level of benefits obtained from them. The paper will investigate and analyse public administration in the Republic of Croatia, its history and development, as well as the process of modernization and digitization of comprehensive business processes. Also, the paper will elaborate on the contemporary concept of public administration development, development of digital society and all necessary aspects in order for society to become digital and modern in practice. The paper will explain the basic concepts of e-administration, its tasks and objectives. Existing digital services in the Republic of Croatia will also be explored and to what extent they are suitable for everyday use. The research will include future development and improvement of already existing services and the development of new ones. The paper plans to describe how the digitisation procedures for public administration have been carried out using the best practice of European countries and the world, the Republic of Estonia. This paper will present the history of public administration and the political-constitutional order of Estonia and digital services represented in their public administration. Strategies for the future development of digital services in Croatia and their implementation in the public administration will be presented.