GST Invoice Generator

Generate a GST-compliant tax invoice with CGST, SGST, and IGST calculations

📋 Seller Details

Seller Name

Seller GSTIN

Seller State

Invoice Number

🛒 Buyer Details

Buyer Name

Buyer GSTIN (optional)

Buyer State

Reverse Charge?

Yes No

Invoice Date

📦 Invoice Items

#	Description	HSN/SAC	Qty	Rate (₹)	GST Rate	Amount
1						₹0.00

Mandatory Invoice Fields under GST (Section 31): Name & address of supplier & recipient, GSTIN, Invoice number & date, HSN/SAC codes, Description of goods/services, Quantity, Rate, Tax (CGST/SGST/IGST), Place of supply, Reverse charge indicator, Signature/digital signature. For supplies > ₹50,000 to unregistered persons, recipient's name, address & state is mandatory.

About GST Invoice Generator

The GST Invoice Generator creates compliant tax invoices as per Rule 46 of the CGST Rules, 2017. A valid GST invoice must contain specific mandatory fields including supplier and recipient GSTIN, HSN/SAC codes, tax rates, and place of supply. Our generator ensures all required fields are included, automatically calculates CGST, SGST, or IGST based on the supply type, and produces professional invoices ready for printing or sharing with buyers.

Under GST law, every registered supplier must issue a tax invoice for all taxable supplies. The invoice must be issued before or at the time of removal of goods or provision of services. For services, the invoice must be issued within 30 days (45 days for banks and NBFCs) from the date of supply. A proper GST invoice is essential for ITC claims by the buyer and for compliance audit purposes. Our tool handles both B2B and B2C invoices with all required fields.

Key Features

Generate B2B and B2C GST-compliant invoices
Auto-calculate CGST, SGST, and IGST based on place of supply
HSN/SAC code integration
Multiple item support with quantity and rate
Print and download invoice as PDF

Frequently Asked Questions

What are the mandatory fields in a GST invoice?

A GST invoice must contain: (1) Name, address, and GSTIN of supplier, (2) Name, address, and GSTIN of recipient (for B2B), (3) Invoice number (consecutive), (4) Date of invoice, (5) Description of goods/services, (6) HSN/SAC code, (7) Quantity and unit, (8) Taxable value, (9) CGST, SGST/IGST rates and amounts, (10) Place of supply, (11) Reverse charge indicator if applicable, and (12) Signature of supplier.

When should a GST invoice be issued?

For goods, the GST invoice must be issued before or at the time of removal of goods for supply. For services, it must be issued within 30 days from the date of supply of service (45 days for banking and NBFC services). If the recipient is unregistered and the value exceeds ₹50,000, the invoice must also show the recipient's state name and address.

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

A tax invoice is issued by regular registered suppliers for taxable supplies and contains GST components (CGST/SGST/IGST). A bill of supply is issued by composition dealers or for exempt supplies — it does not contain any tax components since no GST is charged. Both documents serve as proof of supply but have different formats and purposes under GST law.

GST Invoice Generator