| 07/12/2025 | Income Tax | Challan No. ITNS-281 | "Payment of TDS/TCS of November. In case of government offices where TDS/TCS is paid by book entry, same shall be paid on the same day on which tax is deducted or collected. " |
| 07/12/2025 | FEMA | ECB-2 | Return of External Commercial Borrowings for November. |
| 07/12/2025 | Income Tax | Form 27C | Seller to upload declarations received in November, from buyers for non-deduction of TCS. |
| 10/12/2025 | Income Tax | 10-IC | Online Application by Domestic Co. (other than to whom transfer pricing provisions are applicable) for exercise of option u/s 115BAA (22% tax) |
| 10/12/2025 | Income Tax | 10-ID | Online Application by new Manufacturing Domestic Co. (other than to whom transfer pricing provisions are applicable) filing ITR for first time, for exercise of option u/s 115BAB (15% tax). |
| 10/12/2025 | Income Tax | 10-IE | Online Application by Individual/HUF carrying business / profession, for exercise of option u/s 115BAC(1), where due date of ITR is 31 Oct. |
| 10/12/2025 | Income Tax | 10-IF | Online Application by resident co-operative society, for exercise of option u/s 115BAD(1) where due date of ITR is 31 Oct. |
| 10/12/2025 | Goods and Services Tax | GSTR-7 | Monthly Return by Tax Deductors for November. |
| 10/12/2025 | Goods and Services Tax | GSTR-8 | Monthly Return by e-commerce operators for November. |
| 10/12/2025 | Income Tax | ITR 1 to 7 | Filing of Income Tax returns by Cos, Partnership firms etc. (Audit applicable) |
| 11/12/2025 | Goods and Services Tax | GSTR-1 | Monthly Return of Outward Supplies for November. |
| 13/12/2025 | Goods and Services Tax | IFF | Optional Upload of B2B invoices, Dr/Cr notes for November under QRMP scheme. |
| 13/12/2025 | Goods and Services Tax | GSTR-5 | Monthly Return by Non-resident taxable person for November. |
| 13/12/2025 | Goods and Services Tax | GSTR-6 | Monthly Return of Input Service Distributor for November. |
| 15/12/2025 | Income Tax | Form 16B | Issue of TDS Certificate u/s 194-IA for TDS deducted on Purchase of Property in October. |
| 15/12/2025 | Income Tax | Form 16C | Issue of TDS Certificate for tax deducted on rent above 50,000 pm by certain individuals/HUF under Section 194-IB where lease has terminated in October. |
| 15/12/2025 | Income Tax | Form 16D | Issue of TDS Certificate for tax deducted u/s 194M on certain payments by individual/HUF in October. |
| 15/12/2025 | Income Tax | Form 16E | Issue of TDS Certificate for tax deducted u/s 194S on Virtual Digital Assets in October. |
| 15/12/2025 | Provident Fund | Electronic Challan cum Return (ECR) | E-Payment of PF for November. |
| 15/12/2025 | ESI | ESI Challan | Payment of ESI for November |
| 15/12/2025 | Income Tax | Challan No.280 | Deposit of Third Instalment of Advance Tax (75%) by all assessees (other than 44AD & 44ADA cases). |
| 15/12/2025 | Income Tax | Form 24G | Details of Deposit of TDS/TCS of November by book entry by an office of the Government. |
| 15/12/2025 | Income Tax | 10-IC, 10-ID, 10-IE, 10-IF | Online Application for alternative tax regime in transfer pricing cases. |
| 15/12/2025 | Income Tax | ITR 3, 5, 6 | Filing of Income Tax Return where Transfer Pricing applicable. |
| 20/12/2025 | Goods and Services Tax | GSTR-5A | Monthly Return by persons outside India providing online information and data base access or retrieval services, for November. Also to be filed by every registered person providing online money gaming from a place outside India to a person in India. |
| 20/12/2025 | Goods and Services Tax | GSTR-1A | Add/amend particulars (other than GSTIN) in GSTR-1 of November. It can be filed after filing of GSTR-1 but before filing corresponding GSTR-3B. |
| 20/12/2025 | Goods and Services Tax | GSTR-3B | Summary Return cum Payment of Tax for November by Monthly filers. (other than QRMP). |