Currently there are more than 7 billion people living on Earth and at least 1 million inhabitants globally live in cities. Modern cities start to use smart infrastructure and digitalization for sustainable development. The article is devoted to considering the smart technologies in city participative budgeting. City budget and financial and economic policy are under trends of digitalization and citizen's participation. Such attitudes and their formation depend on many factors, both public subjective and urban objective. At the same time modern smart cities involve the technological solutions introduction that significantly changes the urban life, which forms new behavioural patterns of interaction between citizens and the urban environment. Participation, individual capacities, and coordination are key factors for improving the efficiency of the financial and economic system and efficiency of urban management. Through these important aspects, it opens strategy perspectives in the fields of participative urban management and the implementation of digital governance. The paper investigates influence of digitalization in city budgeting and attracting citizens to city management.