GST & Tax
GST Return Due Date Calendar
Every GSTR-1, GSTR-3B, CMP-08 and QRMP date for the next few months, for your filing type and state, with a calendar download.
Rates last verified 2026-10-15 — always confirm against the current notification before filing.
GST Return Due Date Calendar
www.indianbusinesstools.com
GST return due dates
Regular, monthly · www.indianbusinesstools.com
October 2026
November 2026
December 2026
January 2027
February 2027
March 2027
Standard statutory dates, last checked 2026-10-15. A due date doesn't move for a Sunday or a holiday. Only a CBIC notification extends it, so check the GST portal before you file.
Which GST return dates apply to you
Regular, monthly filers file GSTR-1 (sales) by the 11th and GSTR-3B (summary and tax payment) by the 20th of the following month. Quarterly (QRMP) filers file GSTR-1 by the 13th and GSTR-3B by the 22nd or 24th of the month after each quarter. In the first two months of every quarter they also pay the tax through a PMT-06 challan by the 25th, and can add invoices through the optional invoice furnishing facility (IFF) by the 13th. Composition dealers file CMP-08 by the 18th after each quarter and one annual return, GSTR-4, by 30 June.
Monthly or QRMP? In October 2026 the monthly GSTR-1 was due on Sunday 11 October and the date did not move for the Sunday, so a monthly return still open is already in late fee. The 13 October reminder from GSTN is for quarterly (QRMP) filers only.
Regular filers also file the annual return, GSTR-9, by 31 December after the financial year. It is optional if your turnover is up to ₹2 crore, and GSTR-9C is also due above ₹5 crore. Filing for FY 2025-26 is reported open on the portal since 10 October 2026, with the due date shown as 31 December 2026. That is not an extension, and the due date stays unless CBIC notifies one. If you do file late, the GST Late Fee & Interest Calculator works out the fee. The GST Composition Scheme Calculator works out the tax for each CMP-08.
GST TDS deductors (government bodies and others who deduct GST at source) file GSTR-7, and e-commerce operators that collect tax at source file GSTR-8. Both are due by the 10th of the following month. Pick either one above. Income-tax TDS is a separate system with its own date, the 7th of the next month (30 April for March). Tick the box above to add it to the list, and see the TDS Calculator for the rate and the cost of depositing late.
QRMP: Category X and Category Y states
The GSTR-3B date for quarterly filers depends on your state of registration, not where you sell. Category X states and union territories file by the 22nd: Andhra Pradesh, Chhattisgarh, Goa, Gujarat, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Tamil Nadu, Telangana, Puducherry, Lakshadweep, the Andaman and Nicobar Islands, and Dadra and Nagar Haveli and Daman and Diu. Every other state and union territory is Category Y and files by the 24th. Pick your state above and the calendar shows only your date.
Sundays, holidays and extensions
A GST due date does not move to the next working day when it falls on a Sunday or a public holiday. The portal stays open, and the late fee starts the day after. Only a CBIC notification can extend a date, and it usually does so for a single month or region, often at short notice. This calendar shows the standard statutory dates and can't see a new extension, so check the GST portal before the date if a festival, a portal problem or a natural disaster is in the news. For example, monthly GSTR-3B for September is due on 20 October 2026, which is Dussehra, a public holiday in most states. The date stands, and filing on 21 October is one day late.
If you do miss a date, the GST Late Fee & Interest Calculator works out the fee and the interest. The “Late fee” links in the table open it with the due date already filled in. Our October 2026 due dates post walks through one month in full.
Frequently asked questions
What are the GST return due dates every month?
For a regular monthly filer, GSTR-1 is due on the 11th and GSTR-3B on the 20th of the following month. Quarterly (QRMP) filers file GSTR-1 on the 13th and GSTR-3B on the 22nd or 24th after each quarter, and composition dealers file CMP-08 on the 18th after each quarter.
What is the GSTR-3B due date for QRMP filers, the 22nd or the 24th?
It depends on your state of registration. Category X states and union territories, such as Maharashtra, Gujarat, Karnataka, Tamil Nadu, Kerala, Telangana and Andhra Pradesh, file by the 22nd. All other states and union territories, such as Delhi, Uttar Pradesh, Rajasthan and West Bengal, file by the 24th.
When are GSTR-7 and GSTR-8 due?
Both are due on the 10th of the following month, so the September 2026 returns are due on 10 October 2026. GSTR-7 is for GST tax deducted at source, and GSTR-8 is for tax collected at source by e-commerce operators. Choose either filer type in the calendar to list the dates.
What is PMT-06 and when is it due?
PMT-06 is the challan a QRMP filer uses to pay tax in the first two months of a quarter, by the 25th of the following month. The tax can be paid by the fixed-sum method or the self-assessment method, and the amount is adjusted in the quarterly GSTR-3B.
Is GSTR-9 due on 31 December every year?
Yes, the annual return GSTR-9 is due on 31 December after the financial year, so FY 2025-26 is due on 31 December 2026. It is optional if your annual turnover is up to ₹2 crore. CBIC has extended it in the past, so check the portal near the date.
Can I add these GST due dates to my phone or Google Calendar?
Yes. Press Add to calendar under the table to download an .ics file with one all-day event for every due date shown, each with a reminder two days before. Open the file on your phone or import it into Google Calendar, Outlook or Apple Calendar. Nothing is uploaded, because the file is built in your browser.