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GSTR-3B — Monthly summary return

CGST Act, 2017 · Section 39 r/w Rule 61 · CBIC / GST Council · Monthly

Due 2 November 2026(20th of the following month)

Demo / Awaiting source verification

What it is

GSTR-3B is a consolidated monthly summary return through which a registered person declares outward supplies, input tax credit claimed and the net tax paid for the tax period.

Who must comply

Every registered regular taxpayer (including SEZ units and SEZ developers), other than composition dealers, ISD, non-resident taxable persons and TDS/TCS deductors.

What to file

Summary of outward taxable supplies, inward supplies liable to reverse charge, eligible ITC, exempt/nil-rated inward supplies, interest and late fee, and payment of tax through cash and credit ledgers.

Penalty for delay

Late fee of Rs. 50 per day (Rs. 20 per day for nil returns) subject to prescribed caps, plus interest at 18% p.a. on the net cash tax liability.

Applicability

Regular taxpayers filing monthly returns

Applicable taxpayers

Regular taxpayers

📜 Official Proof

Official Source VerifiedDemo / Awaiting source verification
Source Authority
Central Board of Indirect Taxes and Customs (CBIC)
Source Type
Official Portal
Notification / Circular
Rule 61(1)(i), CGST Rules, 2017
Published
19 June 2017
Effective
1 July 2017

AI Verified Summary · AI-generated summary based on official source

Rule 61 read with Section 39 requires the monthly summary return in FORM GSTR-3B to be furnished on or before the 20th day of the month succeeding the tax period, with staggered dates notified for certain taxpayer categories.

AI confidence 93% · Cross-checked against the official document listed above.

Amendment history

  1. 29 September 2026

    Staggered due dates retained for taxpayers with turnover up to Rs. 5 crore.

    Ref: Notification No. 12/2026-CT

  2. 26 April 2026

    Auto-population of ITC from GSTR-2B made non-editable beyond tolerance limits.

    Ref: Circular No. 205/2025-GST

Related changes

GSTGST returnsOfficial Source Verified

Hard-locking of auto-populated liability in GSTR-3B

What changed? The tax liability auto-populated from GSTR-1/IFF in Table 3 of GSTR-3B is proposed to become non-editable; corrections must be routed through GSTR-1A.

Effective from

24 November 2026

Published

1 November 2026

Source

CBIC / GSTN

Last verified: Verified 2h ago

View Official Source
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