September 2026 Due Dates
We present the September 2026 due dates. It is best to complete these as soon as possible. And not wait for the last date. Due Dates are extended some times. So we show these here, if any extended due date falls in this month.
There are a number of due dates this month. In this article, We’ll cover the common compliances. Including Due dates for
- Income Tax
- GST
- ROC and more
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September 2026 Due Dates
| Due Date | Categories | Particulars |
|---|---|---|
| 07-09-2026 | TDS / TCS Payment | Payment of TDS / TCS for the month of August 2026 |
| 11-09-2026 | GSTR1 Return | Filing of monthly GSTR 1 for the month of August 2026 |
| 13-09-2026 | IFF | Filing of monthly IFF for August 2026 |
| 15-09-2026 | PF & ESIC Payment | Payment of PF & ESIC for the month of August 2026 |
| 15-09-2026 | PTRC Payment | Payment and Return of PTRC – Maharashtra (monthly) for the month of August 2026 |
| 15-09-2026 | Advance Tax | Payment of second installment of advance tax for TY 2026-27 |
| 20-09-2026 | GSTR3B | Filing of GSTR 3B for August 2026 |
| 25-09-2026 | PMT-06 | Payment of GST by quarterly filers for the month of August 2026 |
| 27-09-2026 | AOC-4 | Filing AOC-4 by One Person Companies |
| 30-09-2026 | Tax Audit Report (TAR) | Filing of income tax forms – Tax Audit Report for the year ended March 2026 for those not in transfer pricing audit |
*Turnover means turnover in the preceding financial year.
Category-I States include: Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh and the Union territories of Daman and Diu and Dadra and Nagar Haveli, Puducherry, Andaman and Nicobar Islands and Lakshadweep
Category-II States include: Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand, Odisha, the Union territories of Jammu and Kashmir, Ladakh, Chandigarh and Delhi.
All the September 2026 due dates applicable to your organisation may not reflect here. Contact us to know more.
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