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Free · India-specific · Updated 2026

GST guides for Indian businesses.

Plain-language guides to GSTR-3B, GSTR-1, e-invoicing, GST rate slabs, input tax credit and more — written for small business owners, not chartered accountants.

8 compliance guides5 workspace how-tos3 free tools

GST compliance

Plain-language guides to every GST return, e-invoicing, rates, ITC and the composition scheme.

Guide

How to file GSTR-3B

Step-by-step monthly summary return — due dates, table 3.1, ITC and common mistakes.

Open Guide

How to file GSTR-1

Report outward supplies correctly — B2B, B2C, HSN summary and QRMP.

Open Guide

GSTR-9 annual return

Year-end reconciliation and how to file the annual GST return.

Open Guide

e-Invoicing under GST

Who needs it, how the IRN/QR flow works and what penalties apply.

Open Guide

e-Way bill guide

When to generate, how to create and cancel an e-way bill.

Open Guide

GST rates & slabs

0/5/12/18/28% explained with examples of goods and services in each slab.

Open Guide

Input tax credit explained

Eligibility, blocked credits and how to claim ITC correctly.

Open Guide

GST composition scheme

Who qualifies, tax rates and compliance obligations under composition.

Open

Workspace how-tos

Practical guides for running your restaurant, gym, coaching centre or retail shop with BillRaja.

Guide

How to make a QR menu for a restaurant

Set up a public digital menu with QR code for your restaurant in minutes.

Open Guide

Gym membership renewal management

Automate renewals, plans and attendance for your gym or fitness centre.

Open Guide

Customer bill portal — OTP guide

Let customers view and download their own bills via OTP at /customer.

Open Guide

Restaurant KOT explained

What a Kitchen Order Ticket is and how to manage KOTs in BillRaja.

Open Guide

Coaching centre fee management

Collect fees, track batches and send receipts for coaching classes.

Open

Free GST tools

Interactive tools that work in your browser — no sign-up, nothing stored.

Tool

GST calculator

Add or remove GST with an instant CGST/SGST and IGST split.

Open Tool

GST invoice generator

Create and download a free GST-compliant invoice PDF.

Open Tool

HSN code finder

Look up the HSN/SAC code and GST rate for any product or service.

Open
Auto-GST on every invoice

Let BillRaja handle the GST maths.

BillRaja applies the right CGST/SGST/IGST on every invoice, attaches the correct HSN code and generates GSTR-3B-ready summaries — so filing takes minutes, not hours.

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