| 07.01.2024 | Saturday | Deposit of Tax deducted/collected for December 2023 | Income-tax Challan | |
| 07.01.2024 | Saturday | TDS deposit (Sections 192, 194A, 194D, 194H) | Sections 192, 194A, 194D, 194H | |
| 10.01.2024 | Tuesday | GSTR 7 for December 2023 | GSTR-7 | GST |
| 10.01.2024 | Tuesday | GSTR 8 for December 2023 (E-commerce TCS) | GSTR 8 | GST |
| 11.01.2024 | Wednesday | GSTR-1 for turnover > INR 1.5 crore (December) | GSTR 1 | GST |
| 11.01.2024 | Wednesday | TDS Payment for December 2023 | - | Income Tax |
| 13.01.2024 | Friday | GSTR-1 for turnover up to INR 1.5 crores (Quarterly, Oct-Dec) | GSTR 1 | GST |
| 13.01.2024 | Friday | GSTR-5 for non-resident persons (December) | GSTR 5 | GST |
| 13.01.2024 | Friday | GSTR-6 for Input Service Distributor (ISD) (December) | GSTR 6 | GST |
| 13.01.2024 | Friday | Professional Tax (PT) on Salaries for December 2023 | - | Professional Tax |
| 15.01.2024 | Sunday | Provident Fund (PF) & ESI Returns and Payment for December 2023 | - | Provident Fund, ESI |
| 18.01.2024 | Wednesday | CMP-08 for Quarterly (Oct-Dec) | CMP-08 | GST |
| 20.01.2024 | Friday | GSTR-3B for turnover > INR 5 crore (December) | GSTR 3B | GST |
| 20.01.2024 | Friday | GSTR-3B for turnover up to INR 5 crore (December) | GSTR 3B | GST |
| 20.01.2024 | Friday | Annual Turnover > INR 5cr in Previous FY (GSTR 3B) | GSTR 3B | GST |
| 22.01.2024 | Sunday | GSTR-3B G-1 for Quarterly (Oct-Dec) | GSTR 3B G-1 | GST |
| 24.01.2024 | Tuesday | GSTR-3B G-2 for Quarterly (Oct-Dec) | GSTR 3B G-2 | GST |
| 30.01.2024 | Monday | Quarterly TCS certificate for December 2023 | TCS certificate | Income Tax |
| 30.01.2024 | Monday | TDS Payment in Form 26QB, 26QC, 26QD for December 2023 | - | Income Tax |
| 30.01.2024 | Monday | Issue of TCS Certificates in Form 27D for Oct to Dec 2023 | Form 27D | Income Tax |
| 31.01.2024 | Tuesday | Quarterly TDS statement (Oct-Dec) | TDS Quarter | Income Tax |
| 31.01.2024 | Tuesday | Quarterly return of non-deduction by banking company | Quarterly return of non-deduction | Income Tax |
| 31.01.2024 | Tuesday | Opt for alternative tax regime under Section 115BAA | Section 115BAA | Income Tax |
| 31.01.2024 | Tuesday | Intimation by Sovereign Wealth Fund (Investment in India) | Sovereign Wealth Fund | Income Tax |
| 31.01.2024 | Tuesday | Intimation by Pension Fund (Investment in India) | Pension Fund | Income Tax |
| 31.01.2024 | Tuesday | Form No. 15CC for foreign remittances (Authorized dealers) | Form No. 15CC | Income Tax |
| 31.01.2024 | Tuesday | Form 15G/15H declarations received (Quarter ending Dec 2023) | Form 15G/15H | Income Tax |
| 31.01.2024 | Tuesday | Form No. 49BA by specified fund (Quarter ending Dec 31, 2023) | Form No. 49BA | Income Tax |
| 31.01.2024 | Tuesday | CMP-08 for Quarterly (Oct-Dec) | CMP-08 | GST |
| 31.01.2024 | Tuesday | GSTR-3B for December 2023 (Monthly) | GSTR 3B | GST |
| 31.01.2024 | Tuesday | GSTR-3B for South India (Oct-Dec) | GSTR 3B | GST |
| 31.01.2024 | Tuesday | GSTR-3B for North India (Oct-Dec) | GSTR 3B | GST |
| 31.01.2024 | Tuesday | TDS Return in Form 24Q, 26Q, 27Q for Oct to Dec 2023 | - | Income Tax |
