GSTR-3B Due Date for September 2025 The due date of the monthly GSTR-3B for September 2025 is now extended from 20th October 2025 to 25th October 2025.
The extension applies to both monthly and quarterly filers under section 39 of the CGST Act, 2017. Registered taxpayers can now file their GSTR-3B for the month of September 2025 or the quarter of July–September 2025 by October 25, 2025, instead of the earlier due date.
The GSTR-1 reports details of all outward supplies (sales). The GST 1 due date is the 11th of the following month. GSTR-3B is a summary return that contains details of sales, purchases, tax liability, and ITC claims. GST 3B due date is the 20th of the following month.
Goods and Services Tax (GST) 2.0 reform, which came into effect from September 22nd, 2025, brought relief for the common people and boosts for businesses. One of the key GST updates under 2.0 reform is that it simplified the GST tax structure from a 4-slab (5%, 12%, 18% and 28%) to a 3-slab (5%, 18% and 40%).
Effective October 1st, 2025, a new set of rules for GST return filing will come into effect. This marks the first filing cycle under the GST 2.0 reforms, aimed at improving transparency, control, and accuracy in Input Tax Credit (ITC) management through the Invoice Management System (IMS).
When your GST/HST credit is paid. You will get your annual GST/HST credit, which was calculated using information from your 2024 tax return, in four payments. The CRA will make these payments on the 5th day of July and October 2025, and of January and April 2026.
Total Net GST revenue for October 2025 stands at ₹1,69,002 crore, which is 0.6% higher(monthly growth) and 7.1% higher (yearly growth) than the corresponding period last year at ₹1,68,054 crore.
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Under the revised structure, GST now follows a simplified three-tier rate system: 5% for essential goods and services (merit rate) 18% as the new standard rate for the majority of goods and services. 40% for luxury and "sin" goods, such as high-end vehicles and select tobacco products.
Payment amounts are recalculated every July
For example, the information from your 2024 tax return determines the GST/HST credit amount you get for the payment period from July 2025 to June 2026. You could get up to: $533 if you are a single individual. $698 if you are married or have a common-law partner.
If a regular GSTR-3B return is filed 10 days late, the late fee is ₹500 (₹50 x 10 days), split equally between CGST and SGST. For a nil return delayed by 10 days, the late fee is ₹200 (₹20 x 10 days).
Individuals with a GST account for a personal business (sole proprietorship) typically report GST in line with the calendar year (January 1 – December 31). Generally these returns are due to be filed by June 15 of the following year, however if GST is owed to the government, the payment deadline is April 30.
For the 2025 tax year (filed in 2026), the federal tax extension deadline to file your Form 1040 is October 15, 2026, after getting an automatic six-month extension by filing Form 4868 by the original April 15, 2026 due date, though payments were still due April 15, 2026, to avoid penalties.
4. By when do I need to file Form GSTR-3B? For monthly filers, due date for filing of Form GSTR-3B is 20th day of the month following the month (tax period) for which the return pertains .
Manual > Filing Nil Form GSTR-3B through Online
GSTN will implement Phase-III of enhancing reporting of HSN summary in GSTR 1 from May 2025 tax period onwards. This is aimed at reducing errors, misclassification and bringing more clarity to GST filings. Businesses must adapt their return process to align with the new change of reporting HSN data.
Using the wrong tax codes or accounting method
Many GST mistakes are the result of using incorrect tax codes or the wrong accounting method: Tax codes: If a GST-free sale is coded as taxable in your accounting system, you'll pay GST unnecessarily. If a taxable sale is coded GST-free, you'll underpay.
For any standard-rated supplies of goods or services that you make on or after 1 Jan 2024, you must charge GST at 9%. For instance, if you issue an invoice and receive payments for your supply on or after 1 Jan 2024, you must account for GST at 9%.
The rollout of new GST 2.0 rates from September 22, 2025, marks a turning point in India's tax journey. By simplifying the system into 5%, 18%, and 40% slabs, the government has addressed one of the biggest criticisms of the original GST—complexity.
The next GST payment will be issued on October 3, 2025. Payments remain tax-free and automatic for most residents who filed a 2024 tax return. Newcomers must apply manually in their first year using CRA forms.
GST Reforms 2025: Key Changes in GST Rates Across Categories
Key categories have seen rate reductions: daily essentials have dropped from 12%/18% to 5%, agricultural equipment from 12%/18% to 5%, healthcare services to 5% or exempt, and education services are now fully tax-exempt.
Demonstrating a sustainable financial momentum, India's GST collection for September 2025 soars to ₹1.89 lakh Crore, depicting a 9.1% YoY rise.
New GST Rate on Hotel Rooms (Effective September 22, 2025)
And for rooms that are priced above ₹7,500 per night, it is 18%.
GST on gold and silver jewellery will remain unchanged at 3%, with an additional 5% on making charges. Meanwhile, Gold coins and bars will continue to have 3% GST.