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GST Due Dates – October 2026
Return due dates for this month and next, worked out automatically. Today is 06 October 2026.
October 2026
10Oct
GSTR-7 / GSTR-8 TDS/TCS
TDS deductors and e-commerce operators (TCS) for September 2026
Due in 4 days
TDS deductors and e-commerce operators (TCS) for September 2026
Due in 4 days
11Oct
GSTR-1 (monthly) Monthly
Outward supplies for September 2026 – taxpayers not in QRMP
Due in 5 days
Outward supplies for September 2026 – taxpayers not in QRMP
Due in 5 days
13Oct
GSTR-6 ISD
Input Service Distributors for September 2026
Input Service Distributors for September 2026
13Oct
GSTR-1 (QRMP) Quarterly
Quarterly outward supplies for the Sep quarter (Jul–Sep 2026)
Quarterly outward supplies for the Sep quarter (Jul–Sep 2026)
18Oct
CMP-08 Composition
Composition dealers: tax for the Sep quarter (Jul–Sep 2026)
Composition dealers: tax for the Sep quarter (Jul–Sep 2026)
20Oct
GSTR-3B (monthly) Monthly
Summary return and tax payment for September 2026
Summary return and tax payment for September 2026
20Oct
GSTR-5 / GSTR-5A Others
Non-resident taxable persons / OIDAR suppliers for September 2026
Non-resident taxable persons / OIDAR suppliers for September 2026
22Oct
GSTR-3B (QRMP – Category X States) Quarterly
Quarterly return for the Sep quarter (Jul–Sep 2026) (e.g. Gujarat, Maharashtra, Karnataka, Tamil Nadu and southern/western States)
Quarterly return for the Sep quarter (Jul–Sep 2026) (e.g. Gujarat, Maharashtra, Karnataka, Tamil Nadu and southern/western States)
24Oct
GSTR-3B (QRMP – Category Y States) Quarterly
Quarterly return for the Sep quarter (Jul–Sep 2026) (e.g. Delhi, UP, Punjab, Haryana, Bihar and northern/eastern States)
Quarterly return for the Sep quarter (Jul–Sep 2026) (e.g. Delhi, UP, Punjab, Haryana, Bihar and northern/eastern States)
November 2026
10Nov
GSTR-7 / GSTR-8 TDS/TCS
TDS deductors and e-commerce operators (TCS) for October 2026
TDS deductors and e-commerce operators (TCS) for October 2026
11Nov
GSTR-1 (monthly) Monthly
Outward supplies for October 2026 – taxpayers not in QRMP
Outward supplies for October 2026 – taxpayers not in QRMP
13Nov
GSTR-6 ISD
Input Service Distributors for October 2026
Input Service Distributors for October 2026
13Nov
IFF (QRMP, optional) Quarterly
B2B invoices for October 2026 for QRMP taxpayers
B2B invoices for October 2026 for QRMP taxpayers
20Nov
GSTR-3B (monthly) Monthly
Summary return and tax payment for October 2026
Summary return and tax payment for October 2026
20Nov
GSTR-5 / GSTR-5A Others
Non-resident taxable persons / OIDAR suppliers for October 2026
Non-resident taxable persons / OIDAR suppliers for October 2026
25Nov
PMT-06 Quarterly
QRMP taxpayers: tax payment for October 2026
QRMP taxpayers: tax payment for October 2026
Due dates are the regular statutory dates. The government sometimes extends them by notification, and if a due date falls on a holiday the portal may still require filing by that date. Check the GST portal or ask us.