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Free GST tools, formats & guides.

Everything you need to bill, calculate GST and stay compliant — calculators, downloadable invoice formats and plain-language guides. No sign-up, no cost.

3 free toolsExcel · Word · PDF formatsGST guides

Free tools

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

Tool

GST calculator

Add or remove GST with a CGST/SGST/IGST split.

Open Tool

GST invoice generator

Create and download a GST invoice PDF for free.

Open Tool

HSN code finder

Search the HSN/SAC code and GST rate for any product.

Open

Invoice & bill formats

Ready-to-use billing formats you can download in Excel, Word and PDF.

Template

GST invoice format

GST-compliant tax invoice in Excel, Word & PDF.

Open Template

Bill book format

Simple bill book / cash bill layout.

Open Template

Cash memo format

Cash memo / receipt for over-the-counter sales.

Open Template

Proforma invoice format

Quote-style proforma before the final bill.

Open Template

Restaurant bill format

Itemised restaurant / cafe bill with GST.

Open Hub

All billing formats

Browse every downloadable format.

Open

GST & business guides

Plain-language guides to GST filing, e-invoicing, rates and more.

Guide

How to file GSTR-3B

Step-by-step monthly GSTR-3B filing.

Open Guide

How to file GSTR-1

Report outward supplies correctly.

Open Guide

e-Invoicing under GST

Who needs it and how it works.

Open Guide

GST rates & slabs

0/5/12/18/28% explained.

Open Hub

All GST guides

Browse the full guide library.

Open

Compare billing software

Honest comparisons to help you pick the right billing app.

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Best GST billing software (2026)

Top picks for small businesses.

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Best restaurant billing software

POS, QR menu & KOT compared.

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Best gym management software

Members, plans & renewals.

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Vyapar alternatives

Other billing apps worth a look.

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One app for all of it

Let BillRaja do the billing & GST.

Automatic GST on every invoice, HSN-wise GSTR reports, stock, customers, restaurant and membership tools — all in one free app.

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