What is the due date for GSTR-3B?

Typically the 20th of the next month for many taxpayers (varies for QRMP and special states).

Can I revise GSTR-3B after filing?

Generally no unrestricted revision; corrections follow portal rules and subsequent periods.

Letter G

Monthly summary return for GST liability declaration and ITC claim.

Calculation / formula

Net GST payable ≈ Output tax − eligible ITC ± RCM/other adjustments (as per return tables).

What is the due date for GSTR-3B?: Typically the 20th of the next month for many taxpayers (varies for QRMP and special states).
Can I revise GSTR-3B after filing?: Generally no unrestricted revision; corrections follow portal rules and subsequent periods.