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Guide

What a GST invoice must show

Rule 46 of the CGST Rules, 2017 lists the details a tax invoice has to carry. Here they are in plain words, with a sample invoice marked up field by field.

The 16 mandatory particulars

  1. Supplier details

    Name, address and GSTIN of the business issuing the invoice.

  2. Invoice number

    A consecutive serial number of up to 16 characters, unique for the financial year. It may use letters, numbers, hyphens and slashes, in one or more series.

  3. Date of issue

    The date the invoice is issued.

  4. Recipient details

    Name, address and GSTIN (or UIN) of the recipient, if registered.

  5. Unregistered recipient, ₹50,000 or more

    For an unregistered recipient where the taxable value is ₹50,000 or more: name and address of the recipient and the delivery address, with the state name and state code.

    Not shown in the sample: the recipient there is registered.

  6. HSN or SAC code

    The HSN code for goods or the accounting code (SAC) for services.

  7. Description

    A description of the goods or services supplied.

  8. Quantity and unit

    For goods, the quantity and its unit (Unique Quantity Code, such as NOS or KGS).

  9. Total value

    The total value of the supply.

  10. Taxable value

    The taxable value of each supply after any discount or abatement.

  11. Rate of tax

    The rate of central tax, state or union territory tax, integrated tax and cess, as applicable.

  12. Amount of tax

    The tax charged, shown separately as CGST and SGST (or UTGST) for supplies within a state, or IGST for supplies between states, plus any cess.

  13. Place of supply

    For inter-state supplies, the place of supply with the name of the state.

  14. Delivery address

    The address of delivery, where it differs from the place of supply.

  15. Reverse charge

    Whether tax is payable on a reverse charge basis.

  16. Signature

    Signature or digital signature of the supplier or an authorised representative.

Sample tax invoice. Numbers in circles match the list.

Shree Ganesh Traders

Shop 14, Market Yard, Pune, Maharashtra 411037

GSTIN: 27AAAAA0000A1Z2

Tax invoice

Original for recipient

Invoice no. SGT/26-27/0427
Invoice date 07 Nov 2026
Place of supply 27 – Maharashtra
Reverse charge No

Bill to

Verma Hardware

22 Station Road, Pimpri, Pune, Maharashtra 411018

GSTIN: 27BBBBB1111B1ZN

Ship to

Verma Hardware (godown)

Plot 7, MIDC Bhosari, Pune, Maharashtra 411026

#Item HSN Qty RateDisc.Taxable GST Amount
1Steel almirah, 4 shelves94032 NOS₹8,500.00–₹17,000.0018%₹20,060.00
2Plastic chair, armless940112 NOS₹650.005%₹7,410.0018%₹8,743.80

Amount in words

Rupees Twenty Eight Thousand Eight Hundred Four Only

For Shree Ganesh Traders
Authorised signatory

Taxable value
₹24,410.00
CGST @ 9%
₹2,196.90
SGST @ 9%
₹2,196.90
Round off
₹0.20
Total
₹28,804.00

Totals worked out with the same GST engine Parchi uses: taxable value after the 5% line discount, then 18% GST split equally into CGST and SGST because the buyer is in the same state.

Also worth knowing

Codes, copies and other bills

How many HSN digits

The number of HSN digits depends on your aggregate annual turnover, as notified. Under the current rules, businesses with turnover up to ₹5 crore show at least 4 digits on B2B invoices, and businesses above ₹5 crore show 6 digits on all invoices. Check the current notification before you rely on this.

How many copies

For goods, issue the invoice in triplicate: original for the recipient, duplicate for the transporter and triplicate for the supplier. For services, issue it in duplicate: original for the recipient and duplicate for the supplier.

Bill of supply

If you supply only exempt goods or services, or you are registered under the composition scheme, you issue a bill of supply instead of a tax invoice. It carries similar details but charges no GST.

e-Invoicing

Businesses above a turnover threshold notified by the government must also report B2B invoices to the Invoice Registration Portal (IRP) and get an IRN. Check the current threshold. Parchi prepares the e-invoice JSON for you to upload on the IRP; it does not generate the IRN directly.

This guide is general information, not tax advice. Check current notifications or ask your CA.

Make invoices in this format

Parchi fills in your GSTIN, numbering, HSN codes, tax split and amount in words on every invoice.