GST compliance calendar and holidays

The recurring dates that decide whether a vendor looks compliant this month — plus the holidays that quietly shift reconciliation windows.

This cycle

FILING WINDOW

11 · 20

GSTR-1 and GSTR-3B

Due dates

Every recurring GST deadline in one view

Dates are indicative and follow the standard statutory cycle. Government notifications can extend or stagger specific returns.

10

GSTR-7 / GSTR-8

TDS and TCS deductors

Deduction and collection statements for the previous month.

11

GSTR-1

Monthly filers

Outward supplies for the previous month.

13

IFF / GSTR-5 / GSTR-6

QRMP, non-residents, ISD

Invoice furnishing facility and input service distributor returns.

20

GSTR-3B

Monthly filers

Summary return and tax payment for the previous month.

25

PMT-06

QRMP taxpayers

Monthly tax payment for the first two months of a quarter.

Why it matters

A missed vendor filing shows up on your ITC, not theirs

GST First tracks each vendor's filing behaviour against these dates, so a slipped GSTR-1 or GSTR-3B becomes a visible signal instead of a year-end surprise.