The Central Tax Documentation Processing Sector performs administrative and other technical duties concerning the following: maintaining tax accounting; drafting financial statements on stock and flow of data in tax accounting; preparing and proposing by-laws and internal documents for tax data processing; receiving documents and payment notifications from banks; receiving tax returns from the RSTA organizational units; correcting wrong data; checking and correcting data obtained through RSTA official actions; and other duties as stipulated in regulations.

The internal organizational units within the Central Tax Documentation Processing Sector are as follows:

•  Department for Processing Tax Returns
•  Department for Processing RSTA Orders
•  Tax Accounting System Operation and Change Monitoring Department