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How to make a GST invoice online

A GST invoice is quick to prepare once the underlying details are correct. The part worth checking carefully is the tax information, not the PDF formatting.

Make a GST invoice

What to have ready

Before you start, collect:

  • Your registered business name, address and GSTIN
  • The customer's name, billing details and GSTIN, where applicable
  • A clear description of each good or service
  • The appropriate HSN or service classification/SAC details, where required
  • Quantity, rate and taxable value for each line
  • The applicable GST rate
  • The place of supply
  • Your payment details, such as a bank account or UPI ID

Getting these details right first is faster than correcting an invoice after it has been sent.

Create the invoice step by step

  1. Choose India as the region. This enables the India-specific GST fields and rupee formatting.
  2. Add your business details. Enter the legal or trading details you use for invoicing, including your GSTIN.
  3. Add the customer. Include the recipient's GSTIN when the customer is registered and it is required for the transaction.
  4. Enter the line items. Describe each item or service and add the appropriate classification code, quantity and rate.
  5. Set the place of supply. This is what determines whether the invoice generally shows CGST and SGST/UTGST or IGST.
  6. Review the tax calculation. Check the taxable value, GST rate and tax amounts before you issue the invoice.
  7. Add payment details. Include a bank account, UPI ID or other payment instructions you accept.
  8. Download the PDF and review it once more. Check the invoice number, dates, GSTINs and total before sending it.

Adding a UPI QR code

If your invoice generator supports UPI payment links, you can add a UPI ID and place a QR code on the invoice. The customer can scan it with a compatible UPI app instead of typing payment details manually.

A QR code is a convenience, not a substitute for checking the underlying payment information. Make sure the UPI ID and amount are correct before sending the invoice.

If the QR is generated locally in the browser, the invoice tool can create the payment string without acting as a payment processor. The actual payment still takes place through the customer's UPI app and the banking/UPI network.

Before you send

A polished invoice is useful, but compliance depends on the information it contains. Check the current GST requirements that apply to your business, particularly if you are subject to e-invoicing, special place-of-supply rules or industry-specific requirements.

Tax details here are a guide and can change. For current rates and rules, see the GST portal (gst.gov.in). Reviewed September 2026.

Common questions

Does using an invoice generator automatically make an invoice GST-compliant?

No tool can make incorrect business or tax information compliant. A good generator can provide the right fields and calculations, but you are still responsible for entering the correct GSTINs, classification, place of supply, tax rate and other required particulars.

Do I need to be GST-registered to create an invoice?

You can create an ordinary commercial invoice without GST registration. You should not charge GST or represent the document as a GST tax invoice unless you are entitled and required to do so.

Can I put a UPI QR code on a GST invoice?

Yes, a payment QR can be included as a convenient way for the customer to pay, provided the invoice itself contains the particulars required for your transaction.

Is it really free?

Yes. Create and download as many documents as you like, with no account, no trial, and no watermark on the document itself.

Is my data safe?

Completely. Everything is built in your browser. Your logo, client details, and amounts are never uploaded to a server, so they never leave your device.

Do I need to sign up?

No. Just start typing. Your business details are saved locally in this browser, so your letterhead is ready the next time.

Invoicing Studio helps you format invoices and does not constitute tax or legal advice. Check your local requirements before sending.