GST Bill Format: 12 Must-Have Fields for a Valid Tax Invoice

A correct GST bill format is one of the simplest ways to look professional and stay compliant at the same time. Whether you run a shop, trade goods, or offer services, every tax invoice you issue should carry the details required under Indian GST rules. In this guide, you will learn the 12 must-have fields of a GST bill, how CGST, SGST and IGST appear on a bill, the difference between a tax invoice and a bill of supply, and how to create a clean GST invoice format in Excel, Word or PDF in minutes.

What Is a GST Bill Format?

A GST bill format is the layout of a tax invoice that a GST-registered business issues when it sells goods or services. It is not just a design. It is a document that records who sold what, to whom, at what value, and how much tax was charged. Your customer may use this invoice to claim input tax credit, so missing or wrong details can create problems for both of you.

The contents of a tax invoice are listed in Rule 46 of the CGST Rules. You can choose your own colours, fonts and logo, but the required fields should always be present. A good GST bill format places these fields in a logical order so the bill is easy to read and easy to check.

12 Must-Have Fields in a GST Bill Format

Here are the key details a GST tax invoice should contain, based on Rule 46 of the CGST Rules. Use this list as a checklist for every bill you make.

Supplier Details

1. Supplier name, address and GSTIN – the legal or trade name of your business, your address, and your 15-character GST Identification Number.
2. Invoice number – a consecutive serial number that is unique for the financial year. It can use letters, numbers, hyphens or slashes, and should not exceed 16 characters.
3. Invoice date – the date on which the invoice is issued.

Recipient Details

4. Recipient name, address and GSTIN – the buyer’s details, including GSTIN if the buyer is registered. For unregistered buyers, name, address and State details are required in certain cases.
5. Place of supply – the State (with its name) where the supply takes place. This decides whether you charge CGST + SGST or IGST.
6. Delivery address – if the goods are delivered to an address different from the billing address.

Item and Tax Details

7. HSN or SAC code – the classification code for goods (HSN) or services (SAC).
8. Description of goods or services – a clear description of what you are selling.
9. Quantity and unit – for goods, the quantity with its unit (pieces, kg, litres and so on).
10. Total value and taxable value – the value of the supply, and the taxable value after any discount or abatement.
11. Tax rate and tax amount – the GST rate and the amount of CGST, SGST/UTGST or IGST, plus cess where applicable.
12. Signature – the signature or digital signature of the supplier or an authorised representative.

Rule 46 also asks you to state whether tax is payable on a reverse charge basis. For the complete and latest wording, always refer to the official notifications on the CBIC GST portal, or check with your CA.

CGST, SGST and IGST in a GST Bill Format

The tax section is where many hand-written bills go wrong. The rule of thumb is simple:

• Same State (intra-State supply): the GST rate is split equally into CGST and SGST. For example, 18% GST appears as 9% CGST and 9% SGST.
• Different State (inter-State supply): the full rate is charged as IGST. For example, 18% GST appears as 18% IGST.

A well-designed GST bill format shows separate columns for CGST, SGST and IGST, so you only fill the ones that apply. It also shows the grand total in figures and in words, along with a round-off line if needed.

Tax Invoice vs Bill of Supply vs Other Bill Formats

Not every business document is a tax invoice. Choosing the right format matters:

• Tax Invoice – issued by a regular GST-registered supplier for taxable supplies.
• Bill of Supply – used by composition dealers, or for exempt supplies, where GST is not charged on the bill.
• Quotation or Estimate – a price offer before the sale. It is not a tax invoice.
• Proforma Invoice – a preliminary bill sent before the actual supply, often for advance payment.
• Delivery Challan – used to move goods when no sale has happened yet, such as for job work or approval.
• Credit Note and Debit Note – used to reduce or increase the value of an invoice already issued.

Keeping all these documents in the same matching design makes your business look organised and helps your customers trust your paperwork.

Simple GST Bill Format in Excel, Word or PDF

You can create a simple GST bill format in almost any tool. Each option has its own strengths:

GST Invoice Format in Excel

Excel is the most popular choice because formulas can calculate taxable value, GST, CGST/SGST or IGST and the grand total for you. This reduces manual maths errors. Excel files also open in Google Sheets, so you can make bills on a phone too.

GST Bill Format in Word

Word is useful if you prefer typing details into a fixed layout. It is easy to edit, but you need to calculate the tax amounts yourself or with a calculator.

Printable GST Bill Format in PDF

A blank PDF works well if you want to print bills on A4 paper and fill them by hand at the counter. You can also save any Excel or Word bill as a PDF and share it on WhatsApp or email.

How to Create a GST Bill in 5 Easy Steps

1. Add your business details once – name, address, GSTIN, State, and bank or UPI details.
2. Enter the invoice number and date – keep the numbering consecutive for the financial year.
3. Fill in the buyer details and place of supply – this decides CGST + SGST or IGST.
4. Add items – description, HSN/SAC, quantity, rate and GST rate for each line.
5. Check totals and sign – confirm the tax split, grand total and amount in words, then sign the bill.

Common Mistakes to Avoid on a GST Bill

• Skipping or repeating invoice numbers.
• Charging CGST + SGST on an inter-State sale, or IGST on a same-State sale.
• Missing HSN/SAC codes or the buyer’s GSTIN for a registered buyer.
• Rounding tax amounts incorrectly or leaving out the amount in words.
• Using an outdated GST rate. Rates can change, so confirm them with your CA or on the official GST portal.

Ready-Made GST Bill Format Templates to Save Time

If you would rather not build a GST bill format from scratch, the GST Invoice Templates Pack gives you 30 ready-to-use formats in Excel, Word and PDF. It covers 10 business documents – Tax Invoice, Bill of Supply, Cash Memo, Quotation/Estimate, Proforma Invoice, Purchase Order, Delivery Challan, Payment Receipt, Credit Note and Debit Note – in 3 designs: Classic, Modern and Minimal.

In the Excel version, you type the item, HSN/SAC, quantity, rate and GST %, and the template calculates the taxable value, CGST + SGST or IGST, round off, grand total and amount in words in Indian style (lakh/crore). Labels are in English and Hindi, there are no macros, and the files also work in Google Sheets. Please note that the templates do not generate e-invoices (IRN/QR) and do not file GST returns.

You can also browse more ready-to-use digital products for everyday business work.

Frequently Asked Questions

What is the correct GST bill format?

A correct GST bill format includes the supplier’s name, address and GSTIN, a unique invoice number and date, recipient details, place of supply, HSN/SAC codes, description, quantity, taxable value, GST rate, CGST/SGST/IGST amounts and a signature, as listed in Rule 46 of the CGST Rules.

Can I make a GST bill in Excel?

Yes. Excel is a practical way to make GST bills because formulas can calculate tax and totals automatically. You can also open Excel files in Google Sheets on your phone.

When should I use CGST and SGST instead of IGST?

Use CGST + SGST when the supplier and the place of supply are in the same State. Use IGST when the supply is to a different State.

What is the difference between a tax invoice and a bill of supply?

A tax invoice shows GST charged on a taxable supply. A bill of supply is used by composition dealers or for exempt supplies, where GST is not charged on the bill.

Is a GST bill format the same as an e-invoice?

No. E-invoicing means reporting the invoice to the government’s Invoice Registration Portal to get an IRN and QR code, and it applies to businesses that meet the notified criteria. A regular GST bill format template does not generate an IRN or QR code.

Start Making Professional GST Bills Today

A clear, complete GST bill format saves time, avoids errors and builds trust with your customers. Use the checklist above for every invoice, or skip the setup and get the GST Invoice Templates Pack to start making professional bills in Excel, Word or PDF right away. Explore all SmartDigito digital products to find more ready-made tools for your work.