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Free GST Invoice Generator Online

Create professional, GST-compliant invoices in minutes. Auto CGST/SGST/IGST calculation, HSN/SAC codes, and instant PDF download — 100% free, forever.

CGST / SGST / IGST Auto PDF Download HSN / SAC Codes No Signup
Your Business (Seller)
Business Name
GSTIN
Address
State
Phone
Email
Bill To (Buyer)
Customer Name
GSTIN (optional)
Address
State
✓ Intra-State Supply  →  CGST + SGST applicable
Invoice Details
Invoice No.
Invoice Date
Due Date (optional)
Line Items
Description HSN QTY Unit Rate (₹) GST % Amount
Grand Total ₹0.00
Notes / Terms
Click Preview to review your invoice, then Download PDF to print or save it. All data stays in your browser — nothing is uploaded.
Step-by-Step Guide

How to Create a GST Invoice in 4 Simple Steps

No accounting knowledge needed. Generate a compliant invoice in under 2 minutes.

01

Enter Business Details

Add your company name, address, GSTIN, phone, and email. This becomes your invoice header.

02

Add Client Details

Enter buyer's name, address, and GSTIN (if B2B). Select intra-state or inter-state transaction.

03

Add Products / Services

List each item with description, HSN/SAC code, quantity, rate, and GST%. Tax auto-calculates instantly.

04

Download PDF

Review your live preview, then click Download PDF to get a print-ready, GST-compliant invoice instantly.

Why ERP Group Invoice Tool

Everything You Need in a Free GST Invoice Generator

Built for Indian MSMEs, freelancers, traders, and CA firms.

GST Council Compliant

LIC, EPF, PPF, ELSS Mutual Funds, NSC, 5-yr FD, Sukanya Samriddhi, ULIP. Deduction limit: ₹1,50,000.

Auto Tax Calculation

Select your GST rate (0%, 5%, 12%, 18%, 28%) and transaction type. CGST+SGST or IGST is calculated and split automatically — zero manual math.

Instant PDF Download

Deduct up to ₹2,00,000 per year on home loan interest for a self-occupied property.

Live Preview

Your invoice updates in real-time as you type. See exactly how the final invoice will look before downloading — no surprises.

Mobile Friendly

Create invoices from your phone, tablet, or desktop — the tool works seamlessly on all devices and screen sizes. Invoice on the go.

100% Private & Secure

Your invoice data is never sent to our servers. Everything runs in your browser — no account creation, no data storage, no tracking.

GST Invoice Format

Mandatory Fields in a GST Invoice as per GST Act 2017

Every GST-registered business must issue a tax invoice with these required fields. Our generator auto-includes all of them.

# Field Description Mandatory
1 Invoice Number Unique sequential alphanumeric number (max 16 chars) Yes
2 Invoice Date Date of issue — determines time of supply for GST Yes
3 Supplier GSTIN Your 15-digit Goods & Services Tax Identification Number Yes
4 Supplier Name & Address Registered business name and complete address Yes
5 Buyer Name & Address For B2B: include buyer's GSTIN and state code Yes
6 HSN / SAC Code Harmonized System code for goods; SAC for services Yes
7 Description of Goods/Services Specific description — not generic names Yes
8 Quantity & Unit Quantity sold and unit of measurement (pcs, kg, hrs, etc.) Yes
9 Taxable Value Price before GST after applying discounts Yes
10 GST Rate Rate applicable: 0%, 5%, 12%, 18%, or 28% Yes
11 CGST / SGST or IGST Amount CGST+SGST for intra-state; IGST for inter-state Yes
12 Place of Supply State where goods/services are supplied Yes
13 Total Invoice Value Total amount including all taxes, in words and figures Yes
14 Signature / Digital Sign Authorized signatory's name and signature Recommended

CGST / SGST vs IGST

CGST + SGST (Intra-State)

Buyer & seller in the same state. GST split equally: half to Centre (CGST), half to State (SGST).

IGST (Inter-State)

Buyer & seller in different states. Full GST goes as IGST to Central Government.

GST Rates Quick Reference

  • Exempt / Nil Rate 0%
  • Essential goods & services 5%
  • Standard services & goods 12%
  • Most services (IT, consulting) 18%
  • Luxury & demerit goods 28%
Who Is This For?

Perfect for Every Type of Indian Business

Freelancers

Designers, developers, writers

Retailers

Shop owners, traders

Manufacturers

Factory & production units

CA Firms

Accountants & tax advisors

Distributors

Wholesale & logistics

Consultants

Service professionals

Got Questions?

Frequently Asked Questions

Everything you need to know about GST invoicing in India.

Yes — 100% free, forever. Create unlimited GST invoices, add unlimited items, apply CGST/SGST/IGST, and download PDF. No signup, no credit card, no hidden charges of any kind.

A valid GST invoice must include: supplier name, address & GSTIN; unique invoice number & date; buyer details with GSTIN (for B2B); HSN/SAC codes; item description, quantity & rate; taxable value; GST rate; CGST/SGST or IGST amounts; place of supply; and total value in figures.

Use CGST + SGST when buyer and seller are in the same state (intra-state transaction). Use IGST when buyer and seller are in different states or union territories (inter-state). Our tool auto-splits based on your selection.

Yes. Click "Download PDF" or "Print Invoice" — no account, no OTP, no email verification required. Your data stays entirely in your browser and is never saved on our servers.

For goods: before or at the time of removal. For services: within 30 days from date of supply. For banking/financial services: within 45 days. Missing these deadlines can lead to GST compliance issues.

Yes. Businesses without GSTIN can still use this tool to create professional invoices (without GST tax fields). Simply leave the GSTIN fields blank and set GST rate to 0% for all items. The invoice will be a valid Bill of Supply.

Ready to Automate Your Entire Invoicing?

Go beyond a free tool. ERP Group's GST Invoicing Software handles bulk invoicing, e-invoicing, e-way bills, GSTR filing, and full accounting — all from one platform.

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