September 2021 Due Dates Compliance Calendar
September 2021 Due Dates for GST, Income Tax and other compliances are mentioned in the tables below:
| Due Date | Form/Return | Description |
| 10-Sep-21 | GSTR-7 | Summary of Tax Deduction at Source and deposited for the month of Aug-21 |
| 10-Sep-21 | GSTR-8 | Summary of Tax collected at source and to be deposited for the month of Aug 21 |
| 11-Sep-21 | GSTR 1
| For the month of Aug 2021 for taxpayers filing monthly returns or those whose turnover is more than Rs. 5 crores |
| 13-Sep-21 | GSTR-1 | GSTR-1 IFF Filing (Optional) for the month of Aug 21 |
| 13-Sep-21 | GSTR 6
| For the month of Aug 2021 to be furnished by an Input Service Distributor. |
| 20-Sep-21 | GSTR-3B | For the month of Aug 21 for the taxpayers filing monthly returns |
| 20-Sep-21 | GSTR 5 | Return for Non Resident Taxable Person for the month of Aug 21 |
| 20-Sep-21 | GSTR 5A | Return for an OIDIAR Service Provider for the month of Aug 21 |
| 25-Sep-21 | Monthly tax (GST) deposit under QRMP Scheme | Deposit of monthly Tax liability by those who have opted quarterly filing scheme (QRMP) |
| Due Date | Purpose
| Description |
| 07-Sep-21 | TDS | Deposit of TDS for the month of August 21 |
| 15-Sep-21 | PF | E-Payment of Provident Fund for the month of Aug 21 |
| 15-Sep-21 | ESI | For the payment of ESI Challan for the month of Aug 21 |
| 30-Sep-21 | Income tax Return | Filing of Income tax return for FY-2020-21 by individuals, HUF, Partnership firm, LLP (all non-audit cases) |
| 30-Sep-21 | Linking of Aadhar with PAN | Aadhar Number is to be linked with PAN as per government directive otherwise PAN would become inoperative |
