The Commissioner of Commercial Taxes, Tamil Nadu, has issued Proceeding No. R1/14526683/2026 dated 25 June 2026, introducing a revised administrative framework for the handling and adjudication of large taxpayers under the Tamil Nadu Goods and Services Tax Act, 2017 (TNGST Act). The new arrangement will come into effect from 1 July 2026.
Under the revised framework, 25 top taxpayers in each territorial zone, identified on the basis of various revenue realisation parameters for the year 2025-26, will be assigned to the concerned Territorial Deputy Commissioner for their administration, including adjudication. The measure seeks to extend the model of focused administration presently followed in the Large Tax Payers Unit, Chennai, to territorial jurisdictions across the State.
The proceedings note that Deputy Commissioners in the Large Tax Payers Unit, Chennai, have been functioning as adjudicating officers for major high-revenue-contributing taxpayers. According to the Department, this arrangement has contributed to better quality of adjudication orders, faster response to taxpayers and more effective tax administration.
The Commissioner has accordingly decided that Territorial Deputy Commissioners will take up adjudication and administration of the selected large taxpayers within their respective zones. This responsibility will be in addition to the existing core functions performed at the zonal and district levels, including Review and Appeal, Accountant General and Legal matters, and Recovery, along with monitoring of assessment circles under their jurisdiction.
The proceedings further record that earlier instructions restricting detailed review of orders and decisions principally to revenue-related aspects had reduced the workload of zonal offices by more than 39 per cent. The resulting administrative capacity is now proposed to be utilised for effective adjudication of large taxpayers at the zonal and Commercial Taxes district levels.
For implementation of the new arrangement, every concerned zonal office will establish a dedicated Adjudication Cell comprising one Commercial Tax Officer (CTO) and one Deputy Commercial Tax Officer (DCTO), drawn from the existing Review, Appeal and Legal unit. The zonal office structure will consequently operate through four principal functional units—Adjudication Cell, Review and Appeal, AG and Legal, and Recovery. The staffing pattern indicated in the proceedings is flexible and may be adjusted by the concerned Deputy Commissioner depending on local administrative requirements.
The review mechanism followed in the Large Tax Payers Unit will also be adopted for adjudication orders passed by Territorial Deputy Commissioners. Under this system, an order passed by the Deputy Commissioner of one zone will be reviewed by another Deputy Commissioner within the same division on a cyclical basis, as allotted by the concerned Joint Commissioner.
The Joint Commissioner (Appeals), Chennai has been designated as the appellate authority for all orders passed by Territorial Deputy Commissioners under the new arrangement. The appellate framework will be reassessed on the basis of the number of appeals filed during 2027-28.
The Additional Commissioner (Systems) has been directed to make the necessary system changes for taxpayer allocation and modification of officer roles, while the Additional Commissioner (RCM) will suitably revise the formats used for performance review meetings. All Territorial Joint Commissioners have been tasked with monitoring the allocation and subsequent administration of the identified taxpayers and reporting implementation-related difficulties to the Commissionerate.
The restructuring is intended to create a more focused and accountable administrative framework for high-value taxpayers, improve consistency and quality in adjudication, make more effective use of zonal administrative capacity and strengthen responsive taxpayer services under the TNGST regime.
The Circular can be accessed at: https://a2ztaxcorp.net/wp-content/uploads/2026/07/Tamilnadu-Circular.pdf
