Timely GSTR3B filing is crucial. The due dates depend on whether you file monthly or quarterly (for those under QRMP scheme).
- For monthly filers, the due date is generally the 20th of the month following the tax month.
- For quarterly filers under the QRMP scheme, the due date is either the 22nd or 24th day of the month following the quarter, depending on your State/UT.
The government may issue extensions or notifications, so always check current updates.
From July 2025 onward, a major change: GSTR3B will become non-editable once filed. Corrections, if needed, can only be done via GSTR‑1A.
Also note: after three years from the due date, you may not be allowed to file a delayed return.