GSTR-1 & GSTR-3B Due Date Checker

See your next GSTR-1 and GSTR-3B due dates for FY 2026-27 — whether you file monthly or quarterly under QRMP. Enter your GSTIN to get the right state-wise GSTR-3B date.

How do you file?

QRMP is available if your turnover is ₹5 crore or less. Otherwise you file monthly.

Next filing period: Sep 2026

GSTR-1 (monthly)

Sun, 11 Oct, 2026

2 days overdue

GSTR-3B (monthly)

Tue, 20 Oct, 2026

7 days left

These are the standard CBIC due dates. The government sometimes grants ad-hoc extensions — always confirm on the GST portal before filing.

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Frequently asked questions

When is GSTR-1 due?

For monthly filers, GSTR-1 is due by the 11th of the month after the tax period. For QRMP (quarterly) filers, it is due by the 13th of the month after the quarter ends.

When is GSTR-3B due?

For monthly filers, GSTR-3B is due by the 20th of the following month. For QRMP filers, it is due by the 22nd (Category X states — southern/western India) or the 24th (Category Y states — northern/eastern India) of the month after the quarter.

What is QRMP and who can use it?

QRMP (Quarterly Return Monthly Payment) lets businesses with turnover up to ₹5 crore file GSTR-1 and GSTR-3B quarterly while paying tax monthly via a challan. It reduces the filing workload for smaller businesses.

Why does my GSTR-3B date depend on my state?

Under QRMP, the government split states into two categories to stagger portal load. Category X (mainly southern and western states) files GSTR-3B by the 22nd; Category Y (northern and eastern states) by the 24th. Enter your GSTIN and the tool detects your state automatically.

Can the due date change?

Yes. CBIC occasionally issues extensions during portal outages or natural disasters. This tool shows the standard statutory dates — always confirm on the GST portal before filing. BillForge tracks your filings and reminds you ahead of each deadline.

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