Upcoming Due Dates
Reference snapshot from the public homepage, inspected 24 October 2026. Confirm current applicability and dates on the official portal.
| Form / period | Date shown |
|---|---|
| GSTR-3B — September 2026 | 20 October 2026 |
| GSTR-3B — July–September 2026 | 22 / 24 October 2026 |
| GSTR-1 — September 2026 | 11 October 2026 |
| GSTR-1 — July–September 2026 | 13 October 2026 |
| CMP-08 — July–September 2026 | 18 October 2026 |