Statutory due dates
| Due date | Compliance | Applies to |
|---|---|---|
| 15 Oct 2026 | ADT-1 (AGM held on 30.09) | Companies |
| 18 Oct 2026 | CMP-08 (Q2) | Composition dealers |
| 20 Oct 2026 | GSTR-3B (September) | Monthly filers |
| 21 Oct 2026 | Tax audit report, AY 2026-27 | Audit cases |
| 22 Oct 2026 | GSTR-3B (Q2) | QRMP filers, Gujarat |
| 25 Oct 2026 | ITC-04 (Apr–Sep 2026) | Job-work principals, AATO > ₹5 cr |
| 30 Oct 2026 | AOC-4 / AOC-4 XBRL (AGM held 30 Sep) | Companies |
| 30 Oct 2026 | LLP Form 8 (FY 2025-26) | LLPs |
| 31 Oct 2026 | PF ECR + remittance, September 2026 wages (extended) | EPF-covered employers |
| 31 Oct 2026 | Q2 TDS/TCS statements (Forms 138, 140, 143, 144) | All deductors / collectors |
| 31 Oct 2026 | Form 3CEB transfer-pricing report | Entities with international / SDT transactions |
| 31 Oct 2026 | EPFO Employees' Enrolment Campaign 2026 closes | Employers with left-out employees |
| 21 Nov 2026 | Income tax return, AY 2026-27 | Audit cases |
Sourced from the firm's Weekly Regulatory Update. Verify before relying; due dates may be extended by the authorities.