The problem of reforming the organizational and legal framework for the functioning of the provincial state chambers and the newly established tax inspection on the Left Bank of Ukraine in the second half of the 19th century and early 20th century is examined. Considerations of the need to unify the state apparatus and optimize the management of direct taxes were significant during this period. The reforms recorded that, having lost their economic and control functions, the state chambers became fiscal administrative institutions, managing the treasuries of the Ministry of Finance and administratively monitoring the accrual of state revenues and the issuance of state expenditures. This was accompanied by the strengthening of the power within the treasury chamber of the chairman, and the transition from a collegial treasury chamber to a complete bureaucratic institution. The transformations gave the provincial treasury chambers a qualitatively new level of powers in the field of tax administration in the provinces, ensuring that the role played by the chambers in the local state apparatus did not diminish. The creation of a tax inspection significantly improved the practice of financial authorities of the Russian Empire, particularly in the Ukrainian provinces of the Left Bank of Ukraine. At the end of the 19th century and the beginning of the 20th century, normative acts of higher power more clearly regulated the job responsibilities of the tax inspection ranks. The studied practice of the tax inspection revealed that trade supervision, particularly by officials of the tax inspection and state chambers in the Kharkiv, Poltava, and Chernihiv provinces, aimed more at preventing violations rather than prosecuting and punishing. It was concluded that the tax reform only partially led to serious changes in the structure of the state chamber, and the local financial management perceived tax inspectors as an additional resource to address urgent issues. The transformations led to a qualitatively new level of tax administration in the provinces, providing the state chambers with the opportunity to move to physical control over the progress of tax cases. Overall, as a result of changes in the structures of the state chambers and the tax inspection, the local administration of the Ministry of Finance significantly increased its presence in the territory of the Left Bank of Ukraine. It was revealed that on the Left Bank of Ukraine there was a broad social base for small business, but extensive fiscal policy was one of the reasons for slowing down the process of entrepreneurship as a taxable class in the Left Bank of Ukraine. Low salaries caused an outflow of officials. It has been suggested that staff shortages in the state chambers and the tax inspectorate led to the recruitment of more liberal regulations to the central and local staff of the Ministry of Finance, including persons who did not have the relevant ranks or had no ranks at all, provided they had higher education. [ABSTRACT FROM AUTHOR]