| January 10 | Due date of filing ITR for FY 2019-20 for taxpayers whose accounts are not be audited |
| January 15 | Extended due date for furnishing various audit reports |
| January 15 | Quarterly statement of TCS deposited for quarter ending December 31,2020 |
| January 30 | Issue of quarterly TCS certificate in respect of tax collected for the quarter ending December 31,2020 |
| January 31 | Quarterly filing of statement of TDC deposited for the quarter ending December 31,2020 |
| January 31 | Last date for filing declaration under vivad se vishwas scheme |
| February 15 | Extended due date of filing of income tax return for FY 2019-20 for taxpayers whose accounts are required to be audited |
| February 15 | Issue of quarterly TDS for payments other than salaries for quarter ending December 31,2020 |
| March 15 | Fourth instalment of advance tax for FY2020-21 |
| March 31 | Extended date for filing quarterly statement of TDS/TCS deposited for Q1 & Q2 of FY 2020-21 |
| March 31 | Last date of filing belated/revised ITR for FY 2019-20 |
| March 31 | Last date of linking pan with Aadhaar |
| March 31 | Last due date of payment vivad se vishwas scheme without additional levy |
| May 15 | Quarterly filing of statement of TCS deposited for quarter ending march 31,2021 |
| May 31 | Quarterly filing of TCS deposited for quarter ending march 31, 2021 |
| May 31 | Dye date of furnishing statement of financial transaction u/s 285 BA for FY 2020-21 |
| June 15 | First instalment of advance tax for FY 2021-22 |
| June 15 | Date of issuing of TDS certificate ie. Form 16, to employees by the employer for FY 2020-21 |
| June 15 | Issuing TDS certificate for payments other than salary for quarter ending march 31,2021 |
| June 15 | Quarterly TCS statement filing for quarter ending June 30 2021 |
| July 30 | Issuing quarterly TCS certificate in respect of tax collection for quarter ending June 30, 2021 |
| July 31 | Filing quarterly statement of TDS deposited for quarter ending June 30,2021 |
| July 31 | ITR filing deadline for FY 2020-21 for individuals, HUFs and other assessee whose account books are not required to be audited |
| August 15 | Issuing quarterly TDS certificate for payments other than salaries for quarter ending June 30,2021 |
| September 15 | Payment of second instalment of advance tax for FY 2021-22 |
| September 30 | ITR filing by those assessee who account books are required to be audited (not having international/ specified domestic transaction ) |
| October 15 | Filing quarterly TCS deposited for quarter ending September 30, 2021 |
| October 30 | Issuing quarterly TCS certificate in respect of tax collected for quarter ending September 30, 2021 |
| October 31 | Filing quarterly statement of TDS deposite for quarter ending September 30, 2021 |
| October 31 | Last date of filing ITR for FY 2020-21 for taxpayers whose accounts are not required to be audited (not having international/specified domestic transaction) |
| October 31 | Submitting audit report for FY 2020-21 in respect of taxpayers having international/specified domestic transaction |
| November 15 | TDS certificate to be issued for payments other than salaries for the second quarter of FY 2021-22 |
| November 30 | ITR filing for FY 2020-21 for assessee with audited books and international / specified domestic transaction. |
| December 15 | Third advance tax instalment for FY 2021-22 |
