Tax invoice format
A tax invoice is the document a GST-registered seller issues for a taxable sale. Here is the standard format and a free tool that fills it for you.
| Your Business Name Address, City - PIN GSTIN/UIN : Your 15-digit GSTIN State Name : Your State, Code : 00 | Invoice No. INV/1/2026-27 | Dated DD-MMM-YYYY | |||||
| Buyer (Bill to) Buyer Name Address, City - PIN GSTIN/UIN : Buyer's GSTIN Place of Supply : Buyer's State (00) | e-Way Bill No. · Vehicle No. · Terms of Delivery | ||||||
| Sl | Description of Goods | HSN/SAC | GST Rate | Quantity | Rate | per | Amount |
|---|---|---|---|---|---|---|---|
| 1 | Product name | HSN | 18 % | 10 PCS | 100.00 | PCS | 1,000.00 |
| Output IGST @ 18% | 180.00 | ||||||
| Total | 10 PCS | ₹ 1,180.00 | |||||
| Amount Chargeable (in words): INR One Thousand One Hundred Eighty Only | |||||||
| HSN/SAC summary · Taxable value · Tax rate · Tax amount · Tax is payable on Reverse Charge : No | |||||||
| Terms & Conditions · UPI QR to pay | Bank details · for Your Business Name · Authorised Signatory | ||||||
Mandatory fields
- Your name, address and GSTIN
- Invoice number: consecutive, unique for the financial year, at most 16 characters (letters, numbers,
-and/only) - Date of issue
- Buyer's name, address and GSTIN if registered. For an unregistered buyer, add name, address and state when the invoice is ₹50,000 or more
- HSN code for goods or SAC for services
- Description, quantity and unit of each item
- Total value, and taxable value after any discount
- Tax rate and amount: CGST + SGST for a sale within your state, IGST for a sale to another state
- Place of supply with the state name, for sales to another state
- Delivery address, if it differs from the place of supply
- Whether tax is payable on reverse charge
- Your signature or digital signature, or that of an authorised person
How many copies?
For goods, issue three copies: Original for recipient, Duplicate for transporter and Triplicate for supplier. For services, two copies: original and duplicate. GST Bill Format prints any one copy or all three in one go.
Tax invoice vs bill of supply
A tax invoice shows GST charged. A bill of supply is used when no GST is charged, for example by composition dealers or for exempt goods.
Questions
Can I use the same invoice number twice?
No. Numbers must be consecutive and unique for each financial year. The app numbers invoices for you and restarts at 1 every April.
When is IGST charged instead of CGST + SGST?
When the seller and the place of supply are in different states. The app decides this from the GSTINs.
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