Via the Fiscal Data Operator (FDO) as the main component, FDC is a system of recording transactions in addition to the issuance of supporting documents, which will serve as a reliable source of complete and reliable information about transactions in the region and the country for the purchase of goods and services. This resource can be used by the tax authority of the government to solve problems of more efficient tax administration, increase the level of tax collection, reduce the number of tax offences, primarily in total, by timely warning them, collecting and analysing data on the revenue of enterprises, the volume of goods sold, an effective system for monitoring and tracking the movement of marked and excisable products, as well as creating the basis for organising a high-tech workspace for a tax inspector, which will significantly simplify work with a large amount of data, respond to possible offences in time, eliminate possible corruption, and significantly increase transparency and trust in the tax service.