| 1 | Form ECB-2 for the month of May 2026 | 2026-06-07 |
| 2 | TDS/TCS Payments-deducted on payments/credits/collected for the month of May 2026 | 2026-06-07 |
| 3 | GSTR-8 & GSTR-7 Filing for the Month of May 2026 (For E-Commerce Operators) | 2026-06-10 |
| 4 | GSTR-1 Filing for the month of May 2026 (For Monthly Filers) | 2026-06-11 |
| 5 | GSTR-6 Filing for the month of May 2026 (For Input Service Distributors) | 2026-06-13 |
| 6 | Certificate under section 395(4) of the Income-tax Act 2025 for tax deducted at source under section 393(1) of the Income-tax Act 2025 [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] in the month of April, 2026 | 2026-06-14 |
| 7 | Quarterly TDS certificates (in respect of tax deducted for payments other than salary) for the quarter ending March, 2026 | 2026-06-15 |
| 8 | Certificate of tax deducted at source to employees in respect of salary paid and tax deducted during Financial Year 2025-26 | 2026-06-15 |
| 9 | PF-Payment and Monthly Return for the month of May 2026 | 2026-06-15 |
| 10 | ESI-Payment and Monthly Return for the month of May 2026 | 2026-06-15 |
| 11 | Payment of advance tax for Quarter 1 of FY 2026-27 | 2026-06-15 |
| 12 | GSTR-3B & 5A Filing for the month of May 2026 | 2026-06-20 |
| 13 | Employee-PT Monthly Payment and Return for the month of May 2026 | 2026-06-20 |
| 14 | Challan-cum-statement of deduction of tax under section 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] in the month of May, 2026 | 2026-06-30 |
| 15 | Form DPT-3 - Annual Return to disclose deposit information (for FY 2025-26) | 2026-06-30 |
| 16 | DGFT - Renewal of Importer - Exporter Code (IEC) | 2026-06-30 |
| 17 | Furnishing of Equalisation Levy Statement (Form-1) for the Financial Year 2025-26 | 2026-06-30 |
