31 OCTForm 24Q / 26Q · TDS return · Jul–Sep 2026in 13 days 7 NOVTDS / TCS deposit · Deducted in Oct 2026in 20 days 15 NOVPF & ESI · Contributions · Oct 2026in 28 days 15 JUNForm 16 · Salary TDS certificate · FY 2026-27in 240 days 20 OCTGSTR-3B · Summary return · Sep 2026in 2 days 21 OCTTax Audit Report · Form 3CA/3CB · AY 2026-27 · extended from 30 Sepin 3 days 30 OCTAOC-4 · Financial statements · FY 2025-26in 12 days 11 NOVGSTR-1 · Outward supplies · Oct 2026in 24 days 31 OCTForm 24Q / 26Q · TDS return · Jul–Sep 2026in 13 days 7 NOVTDS / TCS deposit · Deducted in Oct 2026in 20 days 15 NOVPF & ESI · Contributions · Oct 2026in 28 days 15 JUNForm 16 · Salary TDS certificate · FY 2026-27in 240 days 20 OCTGSTR-3B · Summary return · Sep 2026in 2 days 21 OCTTax Audit Report · Form 3CA/3CB · AY 2026-27 · extended from 30 Sepin 3 days 30 OCTAOC-4 · Financial statements · FY 2025-26in 12 days 11 NOVGSTR-1 · Outward supplies · Oct 2026in 24 days