Bill Book Format Explained: Sizes, GST Fields & Design Tips (2026)

If you run a shop, a small business, or work as a freelancer in India, a bill book is still one of the most practical tools you own. But not every bill book is set up correctly — the bill book format you choose decides whether your billing looks professional, stays GST-compliant, and keeps your records clean. In this guide we'll break down what a good bill book format includes, the difference between GST and non-GST bills, which size to pick, and a few design tips that make everyday billing easier.

What is a bill book format?

A bill book format is simply the layout of a single bill page — the fixed structure that tells you where the business name, customer details, item list, taxes and total should sit. A well-designed format means you never miss an important field, your bills look consistent, and both you and your customer can read them at a glance. Most Indian shops use a printed pad of these pages, often with a duplicate copy underneath, so there's a record of every sale.

What a good bill book format should include

Whether you bill by hand or get a book printed, these are the fields a complete bill book format should have:

  • Business details — your shop/company name, address, phone number and logo.
  • GSTIN — your GST number, if you are registered.
  • Bill number & date — a running serial number for easy tracking.
  • Customer details — name, address, and their GSTIN for B2B sales.
  • Item table — product/service description, HSN/SAC code, quantity, rate.
  • Tax breakup — taxable value plus the CGST / SGST / IGST split.
  • Total amount — the final payable value, ideally in words too.
  • Signature line — an authorised signature or stamp.

GST bill vs non-GST bill (pakka vs kacha)

In everyday Indian retail you'll hear two terms: a pakka bill (a proper GST tax invoice) and a kacha bill (an informal cash receipt). Here's the quick difference:

Field GST Bill (Pakka) Cash Bill (Kacha)
GSTIN Required Not needed
HSN / SAC code Required Optional
Tax split (CGST/SGST/IGST) Shown separately Not shown
Best for Registered businesses, B2B Small cash sales

If you are GST-registered, your format must follow the tax-invoice rules laid out on the official GST portal — including GSTIN, HSN codes and the place of supply.

Which bill book size should you choose?

  • A4 — the most space; best for detailed, itemised invoices used by wholesalers and service businesses.
  • A5 — the everyday favourite for retail shops and restaurants; enough room without being bulky.
  • A6 — compact; ideal for quick cash memos and counter receipts.

4 design tips for a professional bill book

  • Put your logo top-left and keep the business name bold — it's the first thing a customer sees.
  • Use serial numbering so every bill is traceable and nothing goes missing.
  • Keep the item table simple — clear column lines make the bill easy to fill and read.
  • Leave space for a stamp/signature at the bottom-right for authenticity.

Do you need to design one from scratch?

Not at all. Instead of building a format in Word or Excel every time, you can design and order a ready-made custom bill book online from Tagsen — pick your size, add your logo and GST details, and get it printed and delivered. It saves time and gives you a consistent, professional format for every sale.

Frequently Asked Questions

What is a bill book format?

It's the fixed layout of a bill page — the structure that shows where business details, items, taxes and totals go — so your billing stays neat and consistent.

What must a GST bill book format include?

Your GSTIN, invoice number and date, customer details, HSN/SAC codes, taxable value, the CGST/SGST/IGST split, place of supply, and a signature.

Which bill book size is best for a small shop?

A5 is the most popular size for retail shops and restaurants — enough space for details without being bulky.

Can I get a bill book printed with my own design?

Yes. You can upload your own artwork, use a ready template, or have a designer create one, then get it printed and delivered — no need to make a fresh format for every bill.

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