The relevance of the topic studied is due to the fact that today requires a rapid response to external challenges and one of the main measures in the state economic development regulation are fiscal mechanisms. Choosing effective options to address this issue will help to stimulate entrepreneurial activity, increase the volume of revenues to budgets of all levels and will allow to use rationally funds for the social sphere needs. It was proposed an algorithm for constructing the concept of the state economy fiscal regulation, which envisages eleven positions. This made it possible to develop a concept in this direction. It was reviewed the fiscal metamorphoses related to the introduction of digital technologies and approaches to improving the directions of their effective use in the fiscal environment.Research results. The result of the study is a clear algorithm definition for constructing the concept of the state economy fiscal regulation and the development of this concept. It was studied the metamorphoses of the fiscal environment through the processes intensification of the digital economy expansion, which makes it possible to develop recommendations for improving the regulation of the state economy through the application of fiscal mechanisms using digital technologies, which will help to increase the revenue part of the budget and contribute to a more efficient allocation of the budget funds aimed to improve the level of country's residents' social needs.