The GST Network (GSTN) has issued an advisory dated 1 July 2026 revising the timeline for amendment of Aggregate Annual Turnover (AATO) for FY 2025–26. The revision follows the implementation of an upgraded system functionality that will enable automatic updation of AATO as subsequent GST returns are filed after the amendment window, thereby improving consistency and accuracy of turnover data across various GST portal modules.
Under the earlier framework, as prescribed in the GSTN Advisory dated 2 May 2022, taxpayers were permitted to amend their AATO during the month of May. However, with effect from FY 2025–26, the amendment facility has been shifted to July to accommodate the enhanced system functionality.
Revised Timeline
| Activity | Revised Timeline |
|---|---|
| AATO Amendment Application by taxpayers for FY 2025–26 | 01 July 2026 to 31 July 2026 |
| Verification by Jurisdictional Tax Officer | 01 August 2026 to 15 August 2026 |
Accordingly, taxpayers can now submit requests for amendment of their AATO only during the period 1 July to 31 July 2026, after which the amended details will be available for verification by the jurisdictional tax authorities between 1 August and 15 August 2026.
GSTN has advised taxpayers to carefully verify the turnover details before submitting amendment requests to ensure correctness of AATO, as the revised functionality aims to maintain uniformity and accuracy across all GST modules. In case of any technical issues or difficulties, taxpayers have been advised to raise a grievance through the Self-Service Portal available on the GST Portal.
The revised timeline aligns the AATO amendment process with the upgraded GST Portal functionality, which will automatically update aggregate turnover based on subsequently filed returns.
The Complete Advisory can be accessed at https://www.gst.gov.in/newsandupdates/read/666
