GST Invoice Generator

Your business details

Business name

GSTIN

Address

Phone

Invoice details

Invoice #

Date

GST Rate %

Customer

Customer name

Customer GSTIN (optional)

Line items

Description

Qty

Rate (₹)

Disclaimer: This free tool is provided by Commmerce for general informational and estimation purposes only. Results are indicative and may not reflect your exact figures, current tax rates, courier charges, marketplace fees, or regulatory requirements, which change over time and vary by case. Commmerce makes no warranty as to accuracy or completeness and accepts no liability for any loss or decision made based on this tool. Always verify with a qualified professional (chartered accountant, tax advisor, or the relevant official source such as the GST portal or CBIC) before acting.

How the GST Invoice Generator works

You enter your business details and GSTIN, the customer's details, and line items with quantity, rate, and GST rate. The tool calculates taxable value, splits tax into CGST+SGST (intra-state) or IGST (inter-state), totals the invoice, and lets you download a GST-compliant PDF. It produces the mandatory fields of a tax invoice such as invoice number, date, HSN, and tax breakup.

Worked example

Bill 10 units at ₹500 each (taxable value ₹5,000) at 18% GST for a same-state customer: CGST ₹450 + SGST ₹450, invoice total ₹5,900, ready to download as a PDF and share on WhatsApp.

Frequently asked questions

What fields make an invoice GST-compliant?

A tax invoice needs your name, address and GSTIN, a unique consecutive invoice number and date, the customer's details, HSN/SAC codes, taxable value, the tax rate and amount (CGST/SGST or IGST), and the total. This tool includes these fields.

Can I generate an invoice without a GSTIN?

If you are not GST-registered you issue a bill of supply rather than a tax invoice and do not charge GST. Registered dealers must show their GSTIN on every tax invoice.

How do I decide CGST+SGST or IGST on the invoice?

It is based on place of supply: same state as your business means CGST+SGST, a different state means IGST. Enter the customer's state and the tool applies the correct split.

Is a computer-generated invoice valid in India?

Yes. A digital or printed GST invoice with all mandatory fields is valid. For B2B supplies above the notified turnover, e-invoicing with an IRN may additionally be required.

Do I need to add my HSN code?

Yes, for most registered dealers. The number of HSN digits required depends on turnover, so enter the correct HSN for each product to stay compliant.