# CMP-08 (composition quarterly statement-cum-challan): due dates

CMP-08 is a quarterly 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 composition scheme

Form: CMP-08. Frequency: quarterly.

## Upcoming due dates, through FY 2027-28

Dates generated on 22 October 2026.

Next due: 18 January 2027, Q3 FY2026-27.

| Period | Due date |
| --- | --- |
| Q3 FY2026-27 | 18 January 2027 |
| Q4 FY2026-27 | 18 April 2027 |
| Q1 FY2027-28 | 18 July 2027 |
| Q2 FY2027-28 | 18 October 2027 |
| Q3 FY2027-28 | 18 January 2028 |

## Source

[CGST Rule 62(1): Composition scheme quarterly statement](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)

## FAQ

### When is the CMP-08 (composition quarterly statement-cum-challan) due?

The next due date from 22 October 2026 is 18 January 2027, for Q3 FY2026-27. Every due date through FY 2027-28 is listed on this page.

### Who has to comply with the CMP-08 due date?

GST taxpayers on the composition scheme.

### Where does this due date come from?

CGST Rule 62(1): Composition scheme quarterly statement. Checked against the source on 17 September 2026.

### Which notices follow a CMP-08 default or mismatch?

Scrutiny of returns (s.61, ASMT-10).

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

Canonical: https://charterai.in/due-dates/gst-cmp08-composition