GST compliance schedule/calendar for October 2025 (Tax Period: September 2025) with all GST return due dates, including GSTR-1, GSTR-3B, GSTR-7, and QRMP deadlines:

Forms (Due Date): Compliance Particulars
GSTR-7 (Due on 10 Oct 2025): Return for registered persons required to deduct tax at source (TDS).
GSTR-8 (Due on 10 Oct 2025): Return for e-commerce operators required to collect tax at source (TCS) on taxable supplies made through their platform.
GSTR-1 (Due on 11 Oct 2025): Statement of outward supplies for taxpayers with turnover above ₹5 crore or those opting for monthly filing.
GSTR-1 QRMP (Due on 13 Oct 2025): Invoice Furnishing Facility for taxpayers under QRMP scheme with turnover up to ₹5 crore.
GSTR-1A (Due on 13 Oct 2025): Amendments to outward supplies for the current tax period.
GSTR-5 (Due on 13 Oct 2025): Return for non-resident taxable persons detailing outward and inward supplies.
GSTR-6 (Due on 13 Oct 2025): Return for Input Service Distributors (ISD) showing input tax credit received and its distribution.
CMP-08 (Due on 18 Oct 2025): Statement of self-assessed tax for Q2 (July/August/September 2025) by taxpayers under composition scheme.
GSTR-3B (Due on 20 Oct 2025): Monthly summary return for all taxpayers (except QRMP scheme).
GSTR-5A (Due on 20 Oct 2025): Return for OIDAR service providers supplying services from outside India to non-taxable online recipients or registered persons in India, including online gaming supplies.
GSTR-3B QRMP Gr 1 (Due on 22 Oct 2025): Quarterly summary return of Q2 (July/August/September 2025) for taxpayers under QRMP scheme (Group 1 States/UTs) – Andaman & Nicobar Islands, Andhra Pradesh, Chhattisgarh, Dadra & Nagar Haveli, Daman & Diu, Goa, Gujarat, Karnataka, Kerala, Lakshadweep, Maharashtra, Madhya Pradesh, Puducherry, Tamil Nadu, Telangana.
GSTR-3B QRMP Gr 2 (Due on 24 Oct 2025): Quarterly summary return of Q2 (July/August/September 2025) for taxpayers under QRMP scheme (Group 2 States/UTs) – Arunachal Pradesh, Assam, Bihar, Chandigarh, Delhi, Haryana, Himachal Pradesh, Jammu & Kashmir, Jharkhand, Ladakh, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Punjab, Rajasthan, Sikkim, Tripura, Uttar Pradesh, Uttarakhand, West Bengal.
Month-wise GST Compliance Schedule/Calendar