Next 90 Days Due Dates Jan Feb Mar Apr May June July Aug Sep Oct Nov Dec All 22 Jul 26 Add/amend particulars (other than GSTIN) in GSTR-1 of June quarter by Quarterly filers in Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, the Union territories of Daman and Diu and Dadra 22 Jul 26 Summary Return of April-June quarter by Quarterly filers in Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, the Union territories of Daman and Diu and Dadra and Nagar Haveli, Puducherry, 24 Jul 26 Add/amend particulars (other than GSTIN) in GSTR-1 of June quarter by Quarterly filers in Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, W 24 Jul 26 Summary Return of April-June quarter by Quarterly filers in Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand, Odish 28 Jul 26 Return for June by persons with Unique Identification Number (UIN) like embassies etc to get refund under GST for goods and services purchased by them. 30 Jul 26 26QC 30 Jul 26 26QC 30 Jul 26 26QC 30 Jul 26 26QC 31 Jul 26 26QC 31 Jul 26 Taxpayers with Turnover below Rs 5 Crores can opt in or opt out of QRMP Scheme for Jul-Sep quarter. 31 Jul 26 Annual Return of Deposits by Companies other than NBFCs for FY 25-26. (extended due date)