| Event Date | Act | Applicable Form | Obligation |
| 07/02/2021 | Income Tax | Challan No. ITNS-281 | Payment of TDS/TCS deducted/collected in January. |
| 10/02/2021 | Goods and Service Tax | GSTR-7 | Monthly Return by Tax Deductors for January. |
| 10/02/2021 | Goods and Service Tax | GSTR-8 | Monthly Return by e-commerce operators for January |
| 11/02/2021 | Goods and Service Tax | GSTR-1 | Monthly return of Outward Supplies for Jan (Turnover exceeding 1.5 Cr.in previous year). |
| 13/02/2021 | Goods and Services Tax | - | Optional Upload of B2B invoices, Dr/Cr notes for January under QRMP scheme. |
| 13/02/2021 | Goods and Service Tax | GSTR-6 | Monthly Return of Input Service Distributor for January. |
| 15/02/2021 | Providend Fund | Electronic Challan cum Return (ECR) | E-Payment of PF for January |
| 15/02/2021 | ESI | ESI Challan | Payment of ESI for January (Register new employees in 10 days of joining) |
| 15/02/2021 | Income Tax | 10-IC | Online Application by Domestic Co. for exercise of option u/s 115BAA (22% tax) (extended due date) |
| 15/02/2021 | Income Tax | 16A | TDS Certificate for payments other than salary during quarter ended Dec. |
| 15/02/2021 | Income Tax | Form 16B | TDS Certificate on Payment made for purchase of property in Dec. |
| 15/02/2021 | Companies Act | AOC-4 | e-forms AOC-4, AOC-4(CFS), AOC-4 XBRL & AOC-4 non-XBRL for FY 2019-20. (extended due date) |
| 15/02/2021 | Income Tax | - | Updation of UDIN for Audit Reports & Certificates uploaded from 27.4.20. |
| 15/02/2021 | Income Tax | ITR | Filing ITR for AY 2020-2021 for audit cases. (extended due date) |
| 20/02/2021 | Goods and Service Tax | GSTR-3B | Summary Return cum Payment of Tax for Jan by taxpayers having an aggregate turnover of more than Rs. 5 cr in previous financial year. |
| 20/02/2021 | Goods and Services Tax | GSTR-5 & 5A | Monthly Return by Non-resident taxable person for January. |
| 25/02/2021 | Goods and Service Tax | PMT-06 | Deposit of GST of January under QRMP scheme. |
| 28/02/2021 | Goods and Services Tax | GSTR-9C | GST Audit Report for 19-20. Mandatory if Turnover > 5 cr. |
| 28/02/2021 | Goods and Services Tax | GSTR-9A | GST Annual Return for 19-20 by Composition taxpayer. |
| 28/02/2021 | Goods and Services Tax | GSTR-9 | GST Annual Return for 19-20. Mandatory if Turnover > 2cr. |
| 28/02/2021 | Income Tax | Form 26QB | Deposit of TDS on payment made for purchase of property in January. |
| 28/02/2021 | Income Tax | Form 26QD | Deposit of TDS u/s 194M for January. |
| 28/02/2021 | Income Tax | - | Making of Declaration under Vivad se Vishwas Scheme. Payment of disputed amount of Tax without additional payment can be made till 31.3.21. |
| 28/02/2021 | ICAI Act | - | Generation of UDIN for Audit Reports & Certificates uploaded from 1.2.19 to 31.1.21. |