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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.

Aug

September 2121

Oct

Date	Compliance	Law	Period
7 Sep, Sun	TDS/TCS deposit Rule 218(2)(b), Income-tax Rules, 2026	Income tax	August 2121
10 Sep, Wed	GSTR-7 (TDS under GST) Rule 66, CGST Rules, 2017	GST	August 2121
10 Sep, Wed	GSTR-8 (TCS by e-commerce operators) Rule 67, CGST Rules, 2017	GST	August 2121
11 Sep, Thu	GSTR-1 (monthly filers) Rule 59, CGST Rules, 2017	GST	August 2121
13 Sep, Sat	IFF (optional, QRMP filers) Rule 59, CGST Rules, 2017	GST	August 2121
15 Sep, Mon	Advance tax 2nd instalment (45%) Section 408, Income-tax Act, 2025	Income tax	FY 2121-22
15 Sep, Mon	ESI contribution Regulation 31, ESI (General) Regulations, 1950	PF/ESI	August 2121
15 Sep, Mon	PF contribution and ECR Para 38, EPF Scheme, 1952	PF/ESI	August 2121
20 Sep, Sat	GSTR-3B (monthly filers) Rule 61, CGST Rules, 2017	GST	August 2121
25 Sep, Thu	PMT-06 tax payment (QRMP filers) Rule 61, CGST Rules, 2017	GST	August 2121
30 Sep, Tue	DIR-3 KYC (directors) Rule 12A, Companies (Appointment and Qualification of Directors) Rules, 2014	Company law	FY 2120-21
30 Sep, Tue	Tax audit report Section 63, Income-tax Act, 2025 r/w Rule 47	Income tax	FY 2120-21