GST Invoice Format in India: Sample, Fields & Free Generator
A GST invoice is a legal document, so the layout matters. Below is a clean format you can follow, along with a sample calculation. If you want a ready-made one, use our free GST invoice generator and download it as PDF or Excel.
Layout of a GST tax invoice
- Header: the words "Tax Invoice", your business name, address, GSTIN and logo.
- Invoice details: invoice number, invoice date, and the place of supply (state name and code).
- Bill to / Ship to: customer name, address and GSTIN (if registered).
- Items table: serial number, description, HSN/SAC, quantity, unit, rate, discount, taxable value, GST rate and tax amount.
- Totals: taxable value, CGST, SGST or IGST, round off, and grand total.
- Amount in words.
- Bank details and terms (payment due date, late fee, jurisdiction).
- Signature of the authorised signatory.
Sample calculation (same state)
| Item | HSN | Qty | Rate | Taxable | GST |
|---|---|---|---|---|---|
| 4 MP IP dome camera | 8525 | 4 | โน2,800 | โน11,200 | 18% |
- Taxable value: โน11,200
- CGST 9%: โน1,008
- SGST 9%: โน1,008
- Grand total: โน13,216 (Rupees Thirteen Thousand Two Hundred Sixteen Only)
For a sale to another state, show IGST 18% = โน2,016 instead. Read CGST, SGST and IGST explained.
Rules to remember
- Use a unique, sequential number. See invoice numbering rules.
- Issue the invoice within the time limit: for goods, at or before delivery; for most services, within 45 days of supply.
- Large taxpayers must follow e-invoicing rules.
- Unregistered or composition dealers issue a bill of supply instead, not a tax invoice.
Free tools
- GST Invoice Generator: PDF and Excel download, no signup
- Quotation Generator: send a quote before the invoice
- GST Calculator: add or remove GST
See the full checklist in GST invoice mandatory fields. This article is informational and not tax advice.