How to create a GST invoice online
This free GST invoice generator lets Indian businesses, freelancers and shop owners make a tax invoice in a couple of minutes, without installing software or creating an account. Fill in the form on the left; the invoice preview updates as you type.
- Add your business details — name, address, state, GSTIN and PAN, plus your logo if you have one.
- Add the customer under Bill To, including their GSTIN if they are registered.
- Enter the invoice number and date. Number invoices in one continuous series for each financial year.
- List each item or service with its HSN/SAC code, quantity and price.
- Set the GST rate and type — CGST + SGST within your state, IGST for another state — and any discount.
- Add bank details, terms and your signature, then click Download Secure PDF or Print.
What a GST tax invoice must include
Rule 46 of the CGST Rules, 2017 sets out what a tax invoice must show. The main fields are:
- Supplier's name, address and GSTIN
- A unique, consecutive invoice number (up to 16 characters) and the invoice date
- Recipient's name, address and GSTIN, if registered
- Place of supply and state, for inter-state supplies
- HSN code for goods or SAC code for services
- Description, quantity and unit of each item
- Total value and taxable value after any discount
- GST rate and amount, shown as CGST + SGST or IGST
- Whether tax is payable on reverse charge
- Signature of the supplier or an authorised representative
For inter-state sales, write the customer's state (the place of supply) in their address so the invoice shows it clearly.
IGST vs CGST + SGST
GST is split by where the supply happens. When you sell to a customer in your own state, the tax is shared equally between the Centre and the state, so an 18% rate appears as 9% CGST and 9% SGST. When you sell to a customer in another state, the full 18% is charged as IGST. The total tax is the same; only the heading changes.
HSN and SAC codes
HSN codes classify goods and SAC codes classify services. Businesses with annual turnover up to ₹5 crore must show at least a 4-digit HSN code on invoices to other registered businesses; above ₹5 crore, a 6-digit code is required on all invoices.
Tax invoice, bill of supply or e-invoice?
A tax invoice is what GST-registered businesses issue when they charge GST — this tool makes that. A bill of supply is used by composition taxpayers and for exempt goods, where no GST is charged. An e-invoice is a tax invoice registered on the government's Invoice Registration Portal, which returns an IRN and QR code; it is mandatory above a turnover limit (currently ₹5 crore).
Frequently asked questions
Is this GST invoice generator really free?
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Yes. You can create unlimited invoices and download them as PDFs at no cost, with no watermark and no account.
Do I need to sign up?
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No account is needed. For invoices of ₹1 lakh or more, the tool asks for your email address before the download.
Should I charge IGST or CGST + SGST?
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Charge CGST + SGST when you and your customer are in the same state (an intra-state supply). Charge IGST when you are in different states (an inter-state supply). Choose the matching option under Discount & GST and the tool splits or combines the tax for you.
Can I add my logo, signature and bank details?
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Yes. Upload your logo and signature as images, and add your bank name, account number, branch and IFSC code so customers know where to pay.
Can I add HSN or SAC codes?
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Yes. Each line item has an HSN/SAC field. Use HSN codes for goods and SAC codes for services.
Can someone edit the PDF after I download it?
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The PDF is saved as an image with editing and copying turned off, so it can be printed but not easily changed. Keep your own record of every invoice you issue.
Does this tool create GST e-invoices with an IRN?
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No. It creates a standard GST tax invoice. Businesses that must issue e-invoices (currently those with aggregate turnover above ₹5 crore) need to register each invoice on the Invoice Registration Portal to get an IRN and QR code.
Is my invoice data stored?
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Invoices below ₹1 lakh are created in your browser and are not sent to Luminatech. For invoices of ₹1 lakh or more, the invoice details and your email address are sent to Luminatech when you download or print.
I'm registered under the composition scheme. Can I use this?
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Composition taxpayers issue a bill of supply instead of a tax invoice and cannot charge GST to customers, so this tax-invoice format is not the right one for you.
Use for genuine transactions only. Every invoice must reflect a real supply of goods or services. Issuing an invoice without an actual supply is an offence under Section 132 of the CGST Act, 2017. This tool helps you format invoices; it is not tax advice. Check the rules for your business with a chartered accountant.
Built by Luminatech, an IT services company in Jaipur that builds websites, apps and custom business software, including billing, inventory and ERP systems.