| December | Sl. No | Particulars | Due Date |
| Direct Tax | 1 | Deposit of TDS & TCS for November, 2020 | 07 December 2020 |
| Third instalment of advance tax for the AY 2021-22 | 15 December 2020 | ||
| 2 | Due date for issue of TDS Certificate for tax deducted under Section 194-IA & 194-IB in the month of October, 2020. | 15 December 2020 | |
| 3 | Furnishing of challan-cum-statement in respect of tax deducted u/s 194-IA & 194-IB in month of November, 2020 | 30 December 2020 | |
| 4 | Return of income for the AY 2019-20 for all non-corporate assessee (ie, Individuals, HUF, AOP, BOI, Partnership) (a)whose books of accounts are not required to be audited or (b) who is not required to furnish a report under section 92E or (c) who is not a working partner of a firm whose accounts are required to be audited |
31 December 2020 | |
| 5 | Due date for filing of Income Tax Audit reports for the FY 2019-20 | 31 December 2020 | |
| Indirect Tax | 6 | GSTR 1 for the month of November 2020 (Turnover exceeding Rs. 1.50 Cr or opted to file monthly Return) | 11 December 2020 |
| 7 | GSTR 3B for the month of November 2020 (if aggregate turnover more than Rs.5 Crores in preceding FY) | 20 December 2020 | |
| 8 | GSTR 3B for the month of November 2020 (if aggregate turnover up to Rs.5 Crores in preceding FY) | 22 December 2020 | |
| 9 | Due dates for filing Annual Return (GSTR-9) and Reconciliation Statement (GSTR-9C) for the FY2018-19 | 31 December 2020 | |
| Others | 10 | ESI & EPF contribution for the month of November 2020 | 15 December 2020 |
