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Compliance calendar

Statutory due dates by month, with the rule or section for each. Dates are not moved for holidays, and the government sometimes extends them, so check the latest notification before you rely on a date.

Sep

October 2026

Nov

Date	Compliance	Law	Period
10 Oct, Sat	GSTR-7 (TDS under GST) Rule 66, CGST Rules, 2017	GST	September 2026
10 Oct, Sat	GSTR-8 (TCS by e-commerce operators) Rule 67, CGST Rules, 2017	GST	September 2026
11 Oct, Sun	GSTR-1 (monthly filers) Rule 59, CGST Rules, 2017	GST	September 2026
13 Oct, Tue	GSTR-1 (quarterly filers, QRMP) Rule 59, CGST Rules, 2017	GST	Q2 (Jul–Sep) FY 2026-27
18 Oct, Sun	CMP-08 (composition taxpayers) Rule 62, CGST Rules, 2017	GST	Q2 (Jul–Sep) FY 2026-27
20 Oct, Tue	GSTR-3B (monthly filers) Rule 61, CGST Rules, 2017	GST	September 2026
22 Oct, Thu	GSTR-3B (quarterly filers, Gujarat) Rule 61, CGST Rules, 2017	GST	Q2 (Jul–Sep) FY 2026-27
25 Oct, Sun	ITC-04 (goods sent for job work) Half-yearly for turnover above ₹5 crore Rule 45(3), CGST Rules, 2017	GST	Apr–Sep 2026