Is the GST invoice generated by this tool legally valid in India?

Yes. For businesses below the mandatory IRP e-invoicing threshold, a tax invoice generated with all mandatory fields under Section 31 and Rule 46 of the CGST Act—including consecutive serial number, supplier & recipient GSTIN, HSN/SAC codes, taxable value, CGST/SGST/IGST split, and signature—is completely valid.

Does ToolBuddy save my invoices, GSTIN, or client list on a server?

Never. The entire invoice editor and PDF generator run locally inside your browser tab using client-side JavaScript. Your client names, pricing, and bank details never leave your device.

How does the tool decide between CGST+SGST and IGST?

When the Supplier State and the Buyer/Place of Supply State are the same (Intra-State), the tool splits the tax equally into CGST and SGST. When the states differ (Inter-State), it applies the full rate as IGST.

Can I use this generator if I am an unregistered freelancer (without GSTIN)?

Yes! If your turnover is below the GST registration threshold (₹20 Lakhs for services in most states / ₹40 Lakhs for goods), simply leave the GSTIN field blank and set the tax rate to 0% to issue a clean commercial invoice or bill of supply.

Where can I find the right HSN or SAC code for my invoice line items?

You can look up goods classifications in our HSN Code Finder (`/hsn-code-finder`) and service classifications in our SAC Code Finder (`/sac-code-finder`), then copy the code straight into your invoice.

Free GST Invoice Generator — Create, Print & Download PDF

1. Your Business (Supplier)

Business Name

GSTIN (15 Digits)

Registered Address

Phone

2. Client / Billed To

Customer / Client Name

Buyer GSTIN (Optional if B2C)

Place of Supply

Invoice No

Invoice Date

Due Date

3. Products & Services Line Items

Item Description	HSN/SAC	Qty	Rate (₹)	Disc %	GST %	Taxable
						₹0.00

Total Taxable Value:₹0.00

CGST:₹0.00

SGST:₹0.00

Grand Total:₹0.00

4. Bank / Payment Details

Bank Name

Account Number

IFSC Code

UPI ID / VPA

5. Terms & Notes

Terms & Conditions

TAX INVOICE

GSTIN: N/A

Invoice #INV-001

Date: 2026-10-27

Due Date: 2026-11-11

Place of Supply: 27 - Maharashtra

Billed To (Customer):

GSTIN: Unregistered / B2C

Supply Classification:

Intra-State (CGST + SGST Applied)

#	Item & Description	HSN/SAC	Qty	Unit Rate	GST	Total
1			1	₹0.00	18%	₹0.00

Amount in Words:

Rupees Zero Only

Bank Payment Details:

Bank:

A/C:

IFSC:

UPI ID:

Terms & Conditions:

1. Payment is due within 15 days of invoice date. 2. Please mention the invoice number in your wire transfer remark. 3. Goods/services once delivered will not be refunded.

Taxable Value:₹0.00

CGST:₹0.00

SGST:₹0.00

Grand Total:₹0.00

For

Authorized Signatory

How to Use the GST Invoice Generator

1
Fill in your business supplier details (Legal Name, Address, 15-digit GSTIN, State, and Contact).
2
Enter your customer's billing details, recipient GSTIN (for B2B ITC claims), invoice number, and dates.
3
Add product or service line items with HSN/SAC codes, quantity, unit price, discount, and GST slab %.
4
Add your bank NEFT/RTGS details or UPI ID, preview the live A4 invoice, and click 'Download PDF' or 'Print'.

Practical Use Cases

Freelancers & Digital Agencies

Billing Corporate B2B Clients with SAC Codes

Generate professional 18% GST tax invoices with SAC 998314/998313 codes so your corporate clients can seamlessly claim Input Tax Credit (ITC).

MSME Traders & Wholesalers

Multi-Item Goods Invoicing with HSN & Discounts

Create itemised bills mixing 5%, 12%, and 18% HSN goods with per-item trade discounts and automatic CGST/SGST splits.

Consultants & Service Contractors

On-the-Go Mobile PDF Invoicing

Draft and export a compliant PDF invoice from your phone or laptop immediately after completing a client engagement and share it on WhatsApp.

GST Invoice Generator Features

Compliant GST Format

Includes state codes, GSTIN validation, HSN/SAC fields, and CGST/SGST/IGST breakdown.

Indian Rupees in Words

Automatically spells out grand total amounts in Indian Lakhs and Crores (e.g., 'Rupees Two Lakh Ten Thousand Only').

Direct PDF & Print Export

Client-side PDF generation using pdf-lib plus standard browser print support with zero server uploads.

100% Private & In-Browser

Calculations and document previews run entirely in your web browser. No financial data is ever stored on our servers.

Free for Indian Businesses

Created specifically for freelancers, consultants, shop owners, traders and MSMEs across India with zero subscription costs.

Mobile & Print Ready

Optimized for one-hand mobile input, instant copy actions, and clean A4 printable layouts.

Technical Specifications & Best Practices

✓Complies with Rule 46 of the CGST Rules, 2017—includes supplier/recipient GSTIN, Place of Supply, HSN/SAC, taxable value, and tax split.
✓Businesses exceeding the statutory e-Invoicing turnover threshold (currently ₹5 Crores) must additionally register B2B invoices on the official IRP portal to obtain an IRN and QR code.
✓All invoice details are processed 100% in your local browser memory; refresh the page only after downloading your PDF.
✓Automatically converts grand totals into the Indian numbering system in words (Thousand, Lakh, Crore).

GST Invoice Generator