07 Nov 2026 — TDS / TCS deposit • 10 Nov 2026 — GSTR-7 — GST TDS return • 10 Nov 2026 — GSTR-8 — GST TCS return • 11 Nov 2026 — GSTR-1 — Outward supplies (monthly) • 13 Nov 2026 — GSTR-6 — ISD return • 13 Nov 2026 — IFF — Invoice Furnishing Facility (QRMP) • 20 Nov 2026 — GSTR-3B — Monthly summary & tax payment • 25 Nov 2026 — PMT-06 — QRMP monthly tax payment • 29 Nov 2026 — MGT-7 / MGT-7A — Annual return • 29 Nov 2026 — PAS-6 — Share capital reconciliation (H1 FY 2026-27) • 29 Nov 2026 — MGT-7A — Annual return (OPC / small company) • 29 Nov 2026 — MGT-8 — PCS certification of annual return • 30 Nov 2026 — ITR — transfer pricing cases •

07 Nov 2026 — TDS / TCS deposit • 10 Nov 2026 — GSTR-7 — GST TDS return • 10 Nov 2026 — GSTR-8 — GST TCS return • 11 Nov 2026 — GSTR-1 — Outward supplies (monthly) • 13 Nov 2026 — GSTR-6 — ISD return • 13 Nov 2026 — IFF — Invoice Furnishing Facility (QRMP) • 20 Nov 2026 — GSTR-3B — Monthly summary & tax payment • 25 Nov 2026 — PMT-06 — QRMP monthly tax payment • 29 Nov 2026 — MGT-7 / MGT-7A — Annual return • 29 Nov 2026 — PAS-6 — Share capital reconciliation (H1 FY 2026-27) • 29 Nov 2026 — MGT-7A — Annual return (OPC / small company) • 29 Nov 2026 — MGT-8 — PCS certification of annual return • 30 Nov 2026 — ITR — transfer pricing cases •