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Compliance calendar
Statutory due dates as per law. Dates are often extended by CBDT, CBIC or MCA; always check the latest official notification.
| Due date | Law | Compliance |
|---|---|---|
| 2026-10-07 | Income Tax | TDS/TCS deposit for September 2026 |
| 2026-10-11 | GST | GSTR-1 for September 2026 (monthly filers) |
| 2026-10-13 | GST | IFF / GSTR-1 for July–September quarter (QRMP) |
| 2026-10-15 | Labour | PF and ESI contribution for September 2026 |
| 2026-10-15 | Income Tax | Quarterly TCS statement, July–September |
| 2026-10-18 | GST | CMP-08 for composition taxpayers, July–September |
| 2026-10-20 | GST | GSTR-3B for September 2026 (monthly filers) |
| 2026-10-21 | Income Tax | Tax audit report for FY 2025-26 (extended by CBDT Circular 7/2026) |
| 2026-10-22 | GST | GSTR-3B for July–September quarter (QRMP, Category A states) |
| 2026-10-24 | GST | GSTR-3B for July–September quarter (QRMP, Category B states incl. Uttar Pradesh) |
| 2026-10-29 | Companies Act | AOC-4 (financial statements) where AGM held on 30 September 2026 |
| 2026-10-30 | LLP Act | Form 8 (Statement of Account & Solvency) for FY 2025-26 |
| 2026-10-31 | Income Tax | Quarterly TDS statements (salary, non-salary, non-resident), July–September |
| 2026-11-07 | Income Tax | TDS/TCS deposit for October 2026 |
| 2026-11-11 | GST | GSTR-1 for October 2026 (monthly filers) |
| 2026-11-15 | Labour | PF and ESI contribution for October 2026 |
| 2026-11-20 | GST | GSTR-3B for October 2026 (monthly filers) |
| 2026-11-21 | Income Tax | Income tax return for FY 2025-26 – audit cases (extended by CBDT Circular 7/2026) |
| 2026-11-28 | Companies Act | MGT-7 / MGT-7A (annual return) where AGM held on 30 September 2026 |
| 2026-11-30 | Income Tax | Income tax return for FY 2025-26 – transfer pricing cases |
| 2026-12-07 | Income Tax | TDS/TCS deposit for November 2026 |
| 2026-12-11 | GST | GSTR-1 for November 2026 (monthly filers) |
| 2026-12-15 | Income Tax | Third instalment of advance tax (75% cumulative) |
| 2026-12-20 | GST | GSTR-3B for November 2026 (monthly filers) |
| 2026-12-31 | GST | GSTR-9 / GSTR-9C annual return for FY 2025-26 |
| 2027-01-15 | Income Tax | Quarterly TCS statement, October–December |
| 2027-01-31 | Income Tax | Quarterly TDS statements (salary, non-salary, non-resident), October–December |
| 2027-03-15 | Income Tax | Fourth instalment of advance tax (100%) |
Past dates are dimmed automatically. Last updated 2026-10-15.