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What is the GSTR-3B due date for a monthly filer?

Here is what we have read at source. Every figure below links to the page it came from.

Documents required for Monthly GST Filing (GSTR-1 and GSTR-3B)

Invoice-level details of supplies to registered persons (B2B), including those having a UIN (CGST Rules 2017, rule 59; FORM GSTR-1); Invoice-level details of inter-State supplies of invoice value greater than Rs. 2,50,000 to unregistered persons (CGST Rules 2017, rule 59; FORM GSTR-1); Details of credit / debit notes issued against invoices (CGST Rules 2017, rule 59; FORM GSTR-1); Details of export of goods and services including deemed exports (SEZ) (CGST Rules 2017, rule 59…

Shortened. The full list is set out item by item on the service page, with the rule that requires each one.

Read at sourceChecked 2026-09-14

Documents required for Annual GST Return (GSTR-9)

All FORM GSTR-1 and FORM GSTR-3B returns for the financial year, already filed - a statutory pre-condition; the portal computes the draft GSTR-9 from them (CGST Rules 2017, rule 80(1); FORM GSTR-9, instruction 2); Table 8A document-wise ITC detail, downloaded from the portal (populated from the suppliers' GSTR-1 / GSTR-5 filings), for reconciliation against ITC claimed (FORM GSTR-9 table 8A); HSN-wise summary of outward supplies for Table 17 - mandatory before liabilities can…

Shortened. The full list is set out item by item on the service page, with the rule that requires each one.

Read at sourceChecked 2026-09-14

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