Taxpayers will not be allowed to file Goods and Services Tax (GST) returns after three years of the due date, starting in July 2025. This means that, assuming there is no extension of a deadline, the farthest back period that a month's GST return can be filed is June 2022, a new direction from the Goods and Services Tax Network (GSTN) said. Applicability Though the move is slated to be effective from August 2025, a deadline has been fixed to file several GST Returns, according to the report.