As per the GSTN Advisory dated 25 September 2025, the GST Network has reiterated that, in accordance with the Finance Act, 2023 and Notification No. 28/2023–Central Tax, any GST return whose due date is three years old or more will be permanently barred from filing on the GST portal starting from the October 2025 tax period.
Additionally, a follow-up advisory issued on 9 September 2025 reconfirmed that returns exceeding the three-year limit from their original due date will be irrevocably blocked from filing with effect from 1 October 2025.



