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Arcade Alliance

Free tool · Web app · Shops, traders & service businesses

Correct GST bills, in seconds.

Type the items, pick the buyer — the tax split, totals, amount in words and HSN summary fill themselves in. It works right here, for free, and nothing leaves your browser.

Use it now Make it yours

The problem

“Every bill takes ten minutes — and GST mistakes slip through.”
The problem this demo is built to solveLive demo · sample data

What is GST billing software?

GST billing software makes tax invoices that follow India’s GST rules: it charges CGST and SGST to buyers in your state and IGST to buyers in other states, checks the buyer’s GSTIN, writes the amount in words and adds the HSN summary your accountant needs for GSTR-1. Ours is free to use on this page.

Built around your workflow: this demo is a starting point — screens, fields, rules and integrations are made to fit your business.

Steps to make one correct GST invoice

Before: 9 manual stepsWith the system: 3 steps

Counted on the demo · how we measured

Counted on the same invoice: the Word / Excel routine described below (copy, renumber, retype, work out tax, write words, rebuild HSN summary…) against pick buyer → add items → print in this tool.

01 · The problem

What problem does it solve?

Many small businesses still bill from a Word or Excel template. Each invoice means copying the last one, changing the buyer, retyping items, working out the tax by hand and writing the amount in words.

The expensive mistakes are quiet ones: CGST and SGST charged to a buyer in another state (which should have been IGST), a wrong HSN code, a duplicate invoice number. They surface weeks later, when the accountant prepares the GST return.

  • Slow counters

    Customers wait while bills are typed and checked by hand.

  • Wrong tax split

    Intra- vs inter-state tax gets mixed up, and returns have to be corrected.

  • Messy numbering

    Copied templates repeat or skip invoice numbers.

  • Month-end rush

    Someone rebuilds the HSN-wise summary for GSTR-1 from scratch.

02 · The solution

How does GST Billing fix it?

  1. 01

    Place of supply decides the tax

    The buyer’s state is compared with the seller’s: same state → CGST + SGST, different state → IGST. Typing a GSTIN fills the state from its first two digits.

  2. 02

    Check before it’s printed

    GSTINs are checked for format and check digit, totals are recomputed on every keystroke and the amount in words follows the Indian system (lakh, crore).

  3. 03

    Built for filing

    Every invoice carries an HSN-wise summary — taxable value and tax by rate — the numbers an accountant needs for GSTR-1.

  4. 04

    Private by design

    This version runs fully in the browser and keeps the draft on the device. The full product adds customers, items, payments and exports on a secure server.

03 · The result

What changes?

Steps to make one correct GST invoice

Before: 9 manual stepsWith the system: 3 steps

Counted on the demo · how we measured

Counted on the same invoice: the Word / Excel routine described below (copy, renumber, retype, work out tax, write words, rebuild HSN summary…) against pick buyer → add items → print in this tool.

Use it now
Free
GST state codes built in
37
CGST / SGST / IGST split
Auto
Data uploaded
0

Free to use

Use it — right here.

Everything works: edit, print or save a PDF. Your draft stays on this device — nothing is uploaded.
  1. 1Change the buyer’s state to Maharashtra — CGST + SGST becomes IGST.
  2. 2Type a GSTIN for the buyer: the state fills itself in and the check digit is verified.
  3. 3Add an item at 5% GST and watch the HSN summary split by rate.
  4. 4Press “Print / Save PDF” to get the finished invoice.
Try it in your brand colour
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Before & after

The same day, two ways.

Watch each task move from the way it’s done today to the way it runs on the system — or drag the slider yourself.
Today
With the system
  • Making a billToday: Copy last month’s Word file and edit itWith the system: Pick items — totals and tax update live
  • Inter-state buyerToday: Remember to switch to IGSTWith the system: Chosen automatically from the place of supply
  • Buyer’s GSTINToday: Typed and hoped for the bestWith the system: Format and check digit verified
  • Amount in wordsToday: Written by handWith the system: Generated in lakh / crore wording
  • GST returnToday: HSN summary rebuilt at month endWith the system: HSN summary on every invoice

Your numbers

What could it save you?

Put in your own volume and timing. It’s your estimate, worked out in your browser — not a promise from us.
min
min

Our estimate for the same task — change it if you like.

₹ / hr

Your estimate

54 hours a month

About 6.8 working days back every month.

650 invoices a month (26 working days) × 5.0 minutes saved each. Your numbers stay in this browser.

Make it yours

Built around your business.

Choose what your version of GST Billing needs. Your brief builds itself — send it, and we reply with a plan.

Often asked for by businesses like yours

  • Your invoice layout and logo
  • A separate number series per branch or GSTIN
  • Hindi or bilingual invoices
  • 80 mm thermal prints for the counter
  • Price lists per customer
Always included
  • Invoice builder
  • Automatic GST split
  • GSTIN check
  • HSN summary
  • Print & PDF
Add modules
Connect to the tools you use
Runs on
Languages
Hosting
Team size

Under the hood

How is it built?

Where the data comes from, what the system does with it, and what comes out.

Inputs

  • Seller & buyer details
  • Items with HSN & GST rate
  • Place of supply

The engine

  • Tax rules (CGST / SGST / IGST)
  • GSTIN check digit
  • Totals, round-off, amount in words

Outputs

  • Print-ready invoice / PDF
  • HSN summary for GSTR-1
  • Draft saved on the device

Modules

  • Invoice builder
  • Automatic GST split
  • GSTIN validation
  • HSN-wise tax summary
  • Print & PDF
  • Customer & item master (full product)

Connects to

  • Tally
  • Zoho Books
  • Razorpay payment links
  • WhatsApp invoice sharing
  • Google Sheets

Stack

  • Next.js
  • React
  • TypeScript
  • Browser storage
  • Print CSS → PDF
  • PostgreSQL (full product)

Proof, the honest way

What would you measure?

This is a demo, so we don’t claim client results. In a real roll-out, these are the numbers we track from week one — before and after.

  • Time per invoice

    From opening a bill to handing it over.

  • Corrections at filing

    Invoices the accountant has to fix before GSTR-1.

  • Days to get paid

    With payment tracking in the full product.

  • Month-end prep

    Hours spent assembling the return.

FAQ

GST Billing FAQ

All questions →
What is GST billing software?

GST billing software makes tax invoices that follow India’s GST rules: it charges CGST and SGST to buyers in your state and IGST to buyers in other states, checks the buyer’s GSTIN, writes the amount in words and adds the HSN summary your accountant needs for GSTR-1. Ours is free to use on this page.

Is this GST billing software really free?

Yes. The invoice maker on this page works fully in your browser at no cost — make, print or save invoices as PDF. The version we build to order adds customer and item lists, payment tracking and exports on a secure server.

When is IGST charged instead of CGST and SGST?

When the place of supply is in a different state from the seller. Within the same state the rate is split equally into CGST and SGST; across states the full rate is charged as IGST. The tool picks the right one from the buyer’s state or GSTIN.

Does it check whether a GSTIN is valid?

It checks the format and the check digit and reads the state from the first two digits. It does not look the number up on the GST portal; a custom build can add a live lookup through a GST Suvidha Provider.

Can it generate e-invoices (IRN) and e-way bills?

Not the free version. The built-to-order version connects to the e-invoice and e-way bill systems through an authorised provider, so the IRN and signed QR code are added to the invoice automatically.

Is my data uploaded anywhere?

No. The free tool keeps your draft on your own device and sends nothing to us. A custom build stores data on the server you choose — our cloud, yours or on-premise.

Can it match the invoice format we use today?

Yes. Layout, logo, fields, number series, terms and language are set to how you bill today, including thermal prints at the counter.

Built around you

Every demo is a starting point.

Nothing here is sold as-is. Each one is rebuilt around your business — these are the things we tailor on every project.

  • Your workflow

    Steps, approvals and statuses the way your team works today.

  • Roles & permissions

    Who sees and changes what — by branch, team or person.

  • Fields & forms

    Your terms, your fields, your numbering and units.

  • Reports

    The numbers you check every day, in your format.

  • Integrations

    Tally, WhatsApp, payments, couriers and the tools you already use.

  • Your brand

    Your name, logo and colours on every screen and document.

  • Language

    English, Hindi or a regional language for staff and customers.

  • Hosting

    Our cloud, your cloud account or your own server.

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Updated 15 Oct 2026 · Arcade Alliance Network is a web, app, software and AI development company in Lucknow, India, building custom software for businesses in India and worldwide.

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