11 NOVGSTR-1 · Outward supplies · Oct 2026in 13 days 13 NOVIFF (QRMP) · B2B invoices · Oct 2026in 15 days 20 NOVGSTR-3B · Summary return · Oct 2026in 22 days 25 NOVPMT-06 (QRMP) · Monthly GST payment · Oct 2026in 27 days 31 DECGSTR-9 / 9C · Annual return · FY 2025-26in 63 days 13 JANGSTR-1 (QRMP) · Quarterly return · Oct–Dec 2026in 76 days 30 OCTAOC-4 · Financial statements · FY 2025-26tomorrow 7 NOVTDS / TCS deposit · Deducted in Oct 2026in 9 days 11 NOVGSTR-1 · Outward supplies · Oct 2026in 13 days 13 NOVIFF (QRMP) · B2B invoices · Oct 2026in 15 days 20 NOVGSTR-3B · Summary return · Oct 2026in 22 days 25 NOVPMT-06 (QRMP) · Monthly GST payment · Oct 2026in 27 days 31 DECGSTR-9 / 9C · Annual return · FY 2025-26in 63 days 13 JANGSTR-1 (QRMP) · Quarterly return · Oct–Dec 2026in 76 days 30 OCTAOC-4 · Financial statements · FY 2025-26tomorrow 7 NOVTDS / TCS deposit · Deducted in Oct 2026in 9 days