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The due date for filing GSTR-3B has been extended till August 27, 2025 for taxpayers registered in Mumbai City, Mumbai Suburban, Thane, Raigad, and Palghar districts.

The decision to extend the GSTR-3B deadline has been taken in view of heavy rainfall in the region, which has disrupted normal life and hampered businesses from meeting compliance requirements on time.
The Central Board of Indirect Taxes and Customs (CBIC) has extended the deadline for filing GSTR-3B returns for July 2025 till August 27, for taxpayers whose principal place of business is located in Mumbai and few other parts of Maharashtra severely affected by incessant rains. Earlier, the deadline was August 20.
The Central GST (CGST) Mumbai Zone in a post on X said, “DATE EXTENSION FOR FILING GSTR-3B. For GST taxpayers located in Mumbai City, Mumbai Suburban, Thane, Raigad & Palghar Districts of Maharashtra the due date for filing FORM GSTR-3B for the month of July 2025 is extended till 27th August 2025 owing to incessant rains and disruption of public life.”
DATE EXTENSION FOR FILING GSTR-3BFor GST taxpayers located in Mumbai City, Mumbai Suburban, Thane, Raigad & Palghar Districts of Maharashtra the due date for filing FORM GSTR-3B for the month of July 2025 is extended till 27th August 2025 owing to incessant rains and disruption…
— CGST Mumbai Zone (@cgstmumbaizone) August 20, 2025
The decision to extend the GSTR-3B deadline has been taken in view of heavy rainfall in the region, which has disrupted normal life and hampered businesses from meeting compliance requirements on time.
GSTR-3B is a monthly summary return under the Goods and Services Tax (GST) regime, through which businesses report details of outward and inward supplies and pay their net tax liability.
The extension is expected to provide relief to thousands of businesses operating in the affected districts, allowing them more time to file their returns without penalties.
Who Needs to File GSTR-3B?
Every registered taxpayer under the GST system is required to file GSTR-3B, except for a few categories such as input service distributors, composition scheme taxpayers, non-resident taxable persons, and those collecting tax at source (TCS) or deducting tax at source (TDS) under GST.
Businesses with GST registration must file GSTR-3B even if they have no transactions during the month, in order to stay compliant and avoid late fees or penalties.
GST Rejig On the Cards
A six-member Group of Ministers (GoM) comprising state finance ministers, chaired by Bihar Deputy Chief Minister Samrat Choudhary, is meeting on August 21 to review the Centre’s GST rate rationalisation proposal. The proposal seeks to streamline the current structure into two primary tax slabs — 5% and 18% — and the panel will forward its recommendations to the GST Council.
The GoM includes ministers from Kerala, Uttar Pradesh, Rajasthan, West Bengal, Bihar, and Karnataka. Key discussions will revolve around the Centre’s plan to classify goods and services into ‘merit’ and ‘standard’ categories, while retaining a 40% rate on select items such as sin goods. Under the proposal, most items in the existing 12% bracket would shift to the 5% slab, while many products currently taxed at 28% would move to 18%.

Haris is Deputy News Editor (Business) at news18.com. He writes on various issues related to personal finance, markets, economy and companies. Having over a decade of experience in financial journalism, Haris h…Read More
Haris is Deputy News Editor (Business) at news18.com. He writes on various issues related to personal finance, markets, economy and companies. Having over a decade of experience in financial journalism, Haris h… Read More
Read More