This month in compliance: October 2026

The dates

• 7 October: TDS deducted in September to be deposited.
• 11 October: GSTR-1 for September (monthly filers).
• 13 October: GSTR-1 for July to September (QRMP filers).
• 18 October: CMP-08 for July to September (composition dealers).
• 20 October: GSTR-3B for September (monthly filers).
• 22 or 24 October: GSTR-3B for July to September (QRMP filers, by state).
• 29 October: AOC-4 if the AGM was on 30 September.
• 30 October: LLP Form 8 (statement of accounts and solvency).
• 31 October: income tax return for companies and audit cases; TDS returns 24Q and 26Q for July to September; MSME-1 for April to September.

QRMP: which date applies to you

Quarterly filers under QRMP file GSTR-3B by 22 October if registered in Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh or the southern union territories, and by 24 October elsewhere. The quarterly GSTR-1 is due by 13 October for everyone. Tax for July and August should already have been paid through PMT-06 by 25 August and 25 September; the September balance is paid with the quarterly 3B. Our GST Filing service runs both cycles.

The 31 October cluster

Three filings share the last day. The income tax return for companies and audit cases, late at ₹5,000. The Q2 TDS returns, late at ₹200 per day under Section 234E up to the TDS amount, with Form 16A to be issued within 15 days of filing. And MSME-1, due only if any payment to a micro or small supplier stayed outstanding beyond 45 days during April to September. Book DSC signatures early; every one of these needs the same tokens the ROC forms used last month. See our TDS Returns and Income Tax services.