GSTR 3B date Extension for March 2026 filing April 2026
GSTN regrets technical difficulties experienced in return filing yesterday . Based on feedback from GSTN, Govt is considering extension of filing date of monthly GSTR 3B (20th April) by one day (21st April). Govt has issued the Following Notification
GSTR 3B date Extension for March 2026 Offical Ntification as published on Gazette website https://egazette.gov.in/
MINISTRY OF FINANCE
(Department of Revenue)
(CENTRAL BOARD OF INDIRECT TAXES AND CUSTOMS)
NOTIFICATION
New Delhi, the 21st April, 2026
No. 01/2026 – Central Tax
G.S.R. 302(E).— In exercise of the powers conferred by sub-section (6) of section 39 of the Central Goods
and Services Tax Act, 2017 (12 of 2017), the Commissioner, on the recommendations of the GST Council, hereby
extends the due date for furnishing the return in FORM GSTR-3B for the month of March, 2026 till the twenty-first
day of April, 2026, for the registered persons who are required to furnish return under sub-section (1) of section 39 read
with clause (i) of sub-rule (1) of rule 61 of the Central Goods and Services Tax Rules, 2017.
2. This notification shall come into effect from 20th day of April, 2026.
[F. No. CBIC-20006/45/2025-GST]
KANGALE SHRUNKHALA MOTIRAM, Director
Download Official Notification in Hindi and English for GSTR 3B date Extension for March 2026
Download Click here to Download No 01/2026 – Central Tax Dated 21st April 2026 for GSTR 3B date Extension
Analysis of GSTR 3B date Extension for March 2026
The Central Board of Indirect Taxes and Customs (CBIC) has officially extended the due date for filing GSTR-3B for the tax period of March 2026.
Revised Due Date
The deadline for monthly filers has been extended by one day:
-
Original Due Date: April 20, 2026
-
Extended Due Date: April 21, 2026
Reason for Extension
The extension was granted via Notification No. 01/2026 – Central Tax (dated April 21, 2026). The decision followed reports of technical glitches, slow system performance, and heavy traffic on the GST portal on the original deadline of April 20, which prevented many taxpayers from completing their filings.
Quick Summary for April 2026 Returns
| Return Type | Original Due Date | Extended Due Date |
| GSTR-3B (Monthly) | April 20, 2026 | April 21, 2026 |
| GSTR-3B (Quarterly/QRMP) | April 22 or 24, 2026 | No change announced* |
[!NOTE]
The extension specifically addressed the technical issues faced on April 20. Quarterly filers (QRMP scheme) generally follow the 22nd or 24th of the month, depending on their state, and these dates remain unchanged unless a separate notification is issued.
It is highly recommended to complete the filing as soon as possible to avoid any further last-minute portal congestion.
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