What is a GST invoice?

A GST invoice is a document issued by a registered seller to a buyer, showing the goods/services sold, applicable GST (CGST/SGST or IGST), and the total amount. It is mandatory for claiming Input Tax Credit (ITC).

What details are required on a GST invoice?

A valid GST invoice must include: supplier name and GSTIN, invoice number, date, buyer name and GSTIN (if registered), HSN/SAC code, description of goods/services, quantity, rate, taxable value, GST rate and amount, and total value.

Can I use this as a legal GST invoice?

This generator creates invoices with all required GST fields. For legal compliance, ensure your business is GST-registered and the invoice includes your correct GSTIN, PAN, and authorized signatory details.

What is the difference between CGST/SGST and IGST?

CGST + SGST applies to sales within the same state (intra-state). IGST applies to sales between different states (inter-state). The total tax amount is the same; only the split differs.

GST Invoice Generator

Create GST-compliant invoices with auto CGST/SGST/IGST calculation. Download as PDF.

100% Free No signup required Data stays in your browser

How It Works

1
Enter your seller details — name, GSTIN, and address.
2
Add buyer/client details — name, GSTIN, and address.
3
Add line items with description, HSN code, quantity, rate, and GST %.
4
Toggle IGST for inter-state transactions (auto-switches CGST/SGST).
5
Download the invoice as a professional PDF with automatic calculations.

Calculation Formula

Item Amount = Quantity × Rate × (1 + GST% / 100)
CGST = (Quantity × Rate × GST%) / 200
SGST = (Quantity × Rate × GST%) / 200
IGST = (Quantity × Rate × GST%) / 100

All calculations are performed instantly in your browser. No data is sent to any server.

When to Use This Tool

Create GST invoices for your clients

Generate tax invoices for e-commerce sales

Bill freelancers and consultants with proper GST

Issue invoices for inter-state (IGST) transactions

Frequently Asked Questions

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