# GSTR-3B (summary return): due dates

GSTR-3B is a monthly GST compliance. The dates below run from 22 October 2026 to the end of FY 2027-28, generated from the Charter statutory calendar, version 2026-09.

## Who it applies to

- GST taxpayers on the regular scheme

Form: GSTR-3B. Frequency: monthly.

## Upcoming due dates, through FY 2027-28

Dates generated on 22 October 2026.

Next due: 20 November 2026, Oct 2026.

| Period | Due date |
| --- | --- |
| Oct 2026 | 20 November 2026 |
| Nov 2026 | 20 December 2026 |
| Dec 2026 | 20 January 2027 |
| Jan 2027 | 20 February 2027 |
| Feb 2027 | 20 March 2027 |
| Mar 2027 | 20 April 2027 |
| Apr 2027 | 20 May 2027 |
| May 2027 | 20 June 2027 |
| Jun 2027 | 20 July 2027 |
| Jul 2027 | 20 August 2027 |
| Aug 2027 | 20 September 2027 |
| Sep 2027 | 20 October 2027 |
| Oct 2027 | 20 November 2027 |
| Nov 2027 | 20 December 2027 |
| Dec 2027 | 20 January 2028 |
| Jan 2028 | 20 February 2028 |
| Feb 2028 | 20 March 2028 |

## Source

[CGST Rule 61: Form and manner of furnishing GSTR-3B](https://cbic-gst.gov.in/)

Checked against the source on 17 September 2026.

Calendar version 2026-09. Charter reminds 7, 3, 1 days before the due date.

## Related notice types

- [Liability mismatch intimation (Rule 88C, DRC-01B)](https://charterai.in/notice/gst-liability-mismatch-intimation-rule-88c-drc-01b)
- [ITC mismatch intimation (Rule 88D, DRC-01C)](https://charterai.in/notice/gst-itc-mismatch-intimation-rule-88d-drc-01c)
- [Scrutiny of returns (s.61, ASMT-10)](https://charterai.in/notice/gst-scrutiny-of-returns-s-61-asmt-10)

## FAQ

### When is the GSTR-3B (summary return) due?

The next due date from 22 October 2026 is 20 November 2026, for Oct 2026. Every due date through FY 2027-28 is listed on this page.

### Who has to comply with the GSTR-3B due date?

GST taxpayers on the regular scheme.

### Where does this due date come from?

CGST Rule 61: Form and manner of furnishing GSTR-3B. Checked against the source on 17 September 2026.

### Which notices follow a GSTR-3B default or mismatch?

Liability mismatch intimation (Rule 88C, DRC-01B); ITC mismatch intimation (Rule 88D, DRC-01C); Scrutiny of returns (s.61, ASMT-10).

Add to my calendar: https://charterai.in/sign-up

Canonical: https://charterai.in/due-dates/gst-gstr3b-monthly