Free GST Invoice Generator
Generate GST-compliant tax invoices with GSTIN, HSN/SAC codes, CGST/SGST/IGST auto-calculation.
TAX INVOICE
#GST-001
Date: 19 Mar 2026
Due: 3 Apr 2026
Intra-State (CGST+SGST)
Supplier
Your Company
Buyer
Client Name
| # | Description | HSN | Qty | Rate | GST% | Amount |
|---|---|---|---|---|---|---|
| 1 | — | — | 1 | ₹0.00 | 18% | ₹0.00 |
Generated with InstantDoc · instantdoc.com
Free GST Invoice Generator India
Generate GST-compliant tax invoices instantly. Our free GST invoice generator auto-calculates CGST & SGST for intra-state supply and IGST for inter-state supply. Supports HSN/SAC codes, multiple line items, and GSTIN for both supplier and buyer. Download as PDF — no login, no charges.
Frequently Asked Questions
What is the difference between CGST+SGST and IGST?
CGST and SGST apply when the supplier and buyer are in the same state (intra-state supply). IGST applies when they are in different states (inter-state supply). Toggle the 'Inter-State Supply' checkbox accordingly.
What are HSN and SAC codes?
HSN (Harmonized System of Nomenclature) codes are for goods. SAC (Services Accounting Code) codes are for services. Both are required on GST invoices above certain turnover thresholds.
Which GST rates are supported?
The generator supports 0%, 5%, 12%, 18%, and 28% GST rates — the standard slabs used in India. You can set a different rate per line item.
Is GSTIN mandatory on the invoice?
For B2B invoices, the buyer's GSTIN is required for the buyer to claim input tax credit. For B2C invoices, the buyer's GSTIN is optional.
Is this invoice format accepted by the GST portal?
This generator creates a standard tax invoice format. For filing returns on the GST portal (GSTR-1), you need to enter invoice details manually or via accounting software. This tool is for generating printable/shareable invoices only.
Can I add my company logo?
Logo upload is not available yet but is on our roadmap. For now, you can add your company name and address as the identifier.