Important GST Returns and Their Due Dates in September 2025
This quick-reference guide lays out all key GST return due dates for September 2025 — including deadlines for GSTR-7, GSTR-8, GSTR-1, IFF (QRMP), GSTR-6, GSTR-5, GSTR-3B and GSTR-5A — plus practical notes on why on-time filing matters and a simple table you can use as a checklist.
Staying updated with GST deadlines is crucial for every business. Filing returns on time avoids penalties and keeps your Input Tax Credit (ITC) flowing smoothly. Below is a concise list of the GST returns due in September 2025 and who should file each one.
Important GST Return Due Dates for September 2025
10th September 2025
- GSTR-7: Taxpayers required to deduct TDS under GST.
- GSTR-8: E-commerce operators required to collect TCS.
11th September 2025
- GSTR-1: Monthly return for outward supplies of goods and services (for August 2025).
13th September 2025
- IFF (Invoice Furnishing Facility — Optional): QRMP taxpayers may upload August invoices.
- GSTR-6: Return for Input Service Distributors (ISD) to distribute ITC.
- GSTR-5: Return for non-resident taxable persons registered under GST.
20th September 2025
- GSTR-3B: Summary return for outward/inward supplies, ITC and tax payment for August 2025.
- GSTR-5A: Return filed by OIDAR (online information and retrieval) service providers.
Quick Reference Table
| Due Date | GST Return Form | Filing Period | Who Should File? |
|---|---|---|---|
| 10 Sep 2025 | GSTR-7 | August 2025 | TDS deductors |
| 10 Sep 2025 | GSTR-8 | August 2025 | E-commerce operators (TCS) |
| 11 Sep 2025 | GSTR-1 | August 2025 | Regular taxpayers (monthly) |
| 13 Sep 2025 | IFF (Optional) | August 2025 | QRMP taxpayers |
| 13 Sep 2025 | GSTR-6 | August 2025 | Input Service Distributors |
| 13 Sep 2025 | GSTR-5 | August 2025 | Non-resident taxable persons |
| 20 Sep 2025 | GSTR-3B | August 2025 | All regular taxpayers |
| 20 Sep 2025 | GSTR-5A | August 2025 | OIDAR service providers |
Why Tracking Deadlines Matters
Keeping a calendar of GST due dates is not just administrative — it protects your business. Timely filings:
- Avoid penalties and late fees.
- Ensure an uninterrupted claim of Input Tax Credit (ITC).
- Maintain good compliance standing for smoother business operations.
Pro tip: Set reminders a few days ahead of each deadline. For QRMP taxpayers, make note of the optional IFF upload (13th) and the PMT payment window (if applicable) later in the month.
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Note-All the aforementioned information in the article is taken from authentic resources and has been published after moderation. Any change in the information other than fact must be believed as a human error. For queries mail us at marketing@myitronline.com
Krishna Gopal Varshney
An editor at apnokacaKrishna Gopal Varshney, Founder & CEO of Myitronline Global Services Private Limited at Delhi. A dedicated and tireless Expert Service Provider for the clients seeking tax filing assistance and all other essential requirements associated with Business/Professional establishment. Connect to us and let us give the Best Support to make you a Success. Visit our website for latest Business News and IT Updates.
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Krishna Gopal Varshney
An editor at Myitronline
Krishna Gopal Varshney, Founder & CEO of Myitronline Global Services Private Limited at Delhi. A dedicated and tireless Expert Service Provider for the clients seeking tax filing assistance and all other essential requirements associated with Business/Professional establishment. Connect to us and let us give the Best Support to make you a Success. Visit our website for latest Business News and IT Updates.
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