# GSTR-1 (outward supplies): due dates

GSTR-1 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-1. Frequency: monthly.

## Upcoming due dates, through FY 2027-28

Dates generated on 22 October 2026.

Next due: 11 November 2026, Oct 2026.

| Period | Due date |
| --- | --- |
| Oct 2026 | 11 November 2026 |
| Nov 2026 | 11 December 2026 |
| Dec 2026 | 11 January 2027 |
| Jan 2027 | 11 February 2027 |
| Feb 2027 | 11 March 2027 |
| Mar 2027 | 11 April 2027 |
| Apr 2027 | 11 May 2027 |
| May 2027 | 11 June 2027 |
| Jun 2027 | 11 July 2027 |
| Jul 2027 | 11 August 2027 |
| Aug 2027 | 11 September 2027 |
| Sep 2027 | 11 October 2027 |
| Oct 2027 | 11 November 2027 |
| Nov 2027 | 11 December 2027 |
| Dec 2027 | 11 January 2028 |
| Jan 2028 | 11 February 2028 |
| Feb 2028 | 11 March 2028 |

## Source

[CGST Rule 59: Form and manner of furnishing details of outward supplies](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

- [Scrutiny of returns (s.61, ASMT-10)](https://charterai.in/notice/gst-scrutiny-of-returns-s-61-asmt-10)
- [Pre-SCN intimation (Rule 142(1A), DRC-01A Part A)](https://charterai.in/notice/gst-pre-scn-intimation-rule-142-1a-drc-01a-part-a)

## FAQ

### When is the GSTR-1 (outward supplies) due?

The next due date from 22 October 2026 is 11 November 2026, for Oct 2026. Every due date through FY 2027-28 is listed on this page.

### Who has to comply with the GSTR-1 due date?

GST taxpayers on the regular scheme.

### Where does this due date come from?

CGST Rule 59: Form and manner of furnishing details of outward supplies. Checked against the source on 17 September 2026.

### Which notices follow a GSTR-1 default or mismatch?

Scrutiny of returns (s.61, ASMT-10); Pre-SCN intimation (Rule 142(1A), DRC-01A Part A).

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

Canonical: https://charterai.in/due-dates/gst-gstr1-monthly