GSTR 3B Filing Guide: Steps & Templates

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Master GSTR 3B filing with our step-by-step guide and Excel templates. Includes current deadlines and recent GSTN updates for compliance.

A Comprehensive Guide to GSTR 3B Filing with Templates and Instructions

This guide assists in preparing and submitting monthly GSTR 3B returns effectively. It offers updated templates and a detailed guide to help businesses accurately manage sales and purchase information for prompt compliance.

Recent Update:
April 11, 2025
* The GSTN has issued an advisory regarding the reporting of values in Table 3.2 of GSTR-3B.
* Effective from April 2025, the auto-populated figures in Table 3.2 for inter-state supplies to unregistered persons, composition taxpayers, and UIN holders will no longer be editable.
* Taxpayers will be required to rectify any incorrect values through amendments made via Form GSTR-1A or Form GSTR-1/IFF filed for subsequent tax periods.

Software solutions are continually updated to assist businesses in preparing GSTR-3B returns efficiently and without errors. Similarly, various Excel templates are available to help users summarize Form 3B data for simplified filing.

Steps for Using GSTR 3B Excel Templates

  • Export transaction data from your accounting software into Excel files.
  • Populate the provided Excel templates with your data.
  • Upload these templates to your chosen GST software, which will automatically prepare your GSTR 3B.
  • Log in to the GSTN portal to submit your return.

GSTR 3B Filing Deadlines

Month Last Date for filing GSTR-3B
August 2025 20th September 2025
September 2025 20th October 2025
October 2025 20th November 2025
November 2025 20th December 2025
December 2025 20th January 2026

Tax liability for GSTR-3B must be settled by the last date of filing for the respective month.

Other GST Return Filing Schedule

In addition to GSTR 3B, taxpayers must file GSTR 1, 2, and 3 according to the following schedule:

Sl. No. Return Tax Period Revised Due Date
1 GSTR 1 July, 2025 10-Oct-2025
2 GSTR-2 July, 2025 31-Oct-2025
3 GSTR-3 July, 2025 10-Nov-2025

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