Step-by-Step GST Return Filing: GSTR-1 & GSTR-3B Process

जीएसटी रिटर्न फाइलिंग ऑनलाइन प्रक्रिया

Comprehensive practical walkthrough of filing monthly and quarterly GST returns on the official government portal www.gst.gov.in with zero errors.

Written by: Author Profile

Direct Tax & CA Review Panel

Chartered Accountancy Review Panel • Senior Direct Tax Review Desk

Reviewed & Fact-Checked by: Technical Review Panel

Tax Law & Dispute Review Desk

Tax Litigation & Legal Review Panel • Tax Appeal & Procedure Review Desk

Published: 1st April 2026•Last Updated: 15th August 2026•Last Reviewed: 15th August 2026

Key Statutory Highlights (FY 2026-27)

Upload B2B invoices with customer GSTIN, invoice date, value, and tax breakdown.

B2C sales can be reported in summary format state-wise.

System auto-generates GSTR-2B on the 14th of every month based on supplier GSTR-1 submissions.

Pay balance tax via Net Banking, UPI, NEFT, or RTGS through Form GST PMT-06 challan.

Who is Eligible & When Does it Apply?

Applicability #1

All active GSTIN holders.

Step-by-Step Procedure & Compliance Roadmap

Log in to GST Portal

Visit gst.gov.in and log in with username, password, and captcha.

Open Return Dashboard & File GSTR-1

Navigate to Services -> Returns -> Returns Dashboard. Select period and enter outward supply tables.

Generate Summary & Submit GSTR-1 via OTP/DSC

Review draft summary, verify OTP via Aadhaar EVC or Digital Signature Certificate (DSC).

Open GSTR-3B & Reconcile Input Tax Credit

Verify auto-populated values from GSTR-1 (tax liability) and GSTR-2B (eligible input tax credit).

Offset Tax Liability & File

Click 'Make Payment/Post Credit to Ledger' and sign GSTR-3B with EVC/DSC.

Mandatory Documents Checklist

Sales invoice records, Purchase register with vendor GSTINs, Bank payment receipts

Common Mistakes & Compliance Risks to Avoid

•Filing GSTR-3B without paying the required cash ledger shortfall.

•Entering incorrect GSTINs for B2B buyers.

Frequently Asked Questions

Can a filed GSTR-3B return be revised?

No, GSTR-3B cannot be revised once filed. Corrections must be adjusted in the subsequent month's GSTR-1 and GSTR-3B return.

Interactive Tax Calculators

GST Calculator

Related Tax Knowledge

GST Returns Overview

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🛡️ Educational Disclaimer: FinSetu India is an independent educational guidance and calculation platform. Content is published for general citizen awareness based on applicable laws as of FY 2026-27. We do not provide personalized legal/tax advice or file returns directly. Verify current applicable rules on official portals or consult a qualified Chartered Accountant / Tax Lawyer.