Question 1

Is this a real GST-compliant invoice?

Accepted Answer

It produces an invoice with all the line items the GST law requires — sequential invoice number, supplier and buyer details, GSTINs, place of supply, HSN/SAC codes, taxable value, GST breakup as CGST+SGST or IGST, total in figures and words. That said, every business has its own filing rhythm and CA workflow. Treat the output as a clean draft you can print or save as PDF, then verify with your accountant before sending to a customer.

Question 2

When does the tool apply CGST + SGST vs IGST?

Accepted Answer

Indian GST splits intra-state and inter-state supply. If your supplier state and the place-of-supply state are the same, the tool splits the GST rate into equal CGST and SGST halves (e.g. 18% becomes 9% CGST + 9% SGST). If the two states differ, the tool charges a single IGST line at the full rate. You only pick the supplier state and place-of-supply state — the math follows automatically.

Question 3

Which GST rates does the tool support?

Accepted Answer

The standard slabs: 0%, 5%, 12%, 18%, and 28%. Pick the rate per line item; not every line in an invoice has to be at the same slab. Cess (on items like tobacco or aerated drinks) and reverse-charge mechanism are not in this v1 — if you need those, your CA will likely already have a custom template.

Question 4

What is HSN/SAC code and is it mandatory?

Accepted Answer

HSN (Harmonized System of Nomenclature) is the goods code; SAC (Services Accounting Code) is for services. For businesses with annual turnover above ₹5 crore, 6-digit HSN is mandatory on B2B invoices. Below ₹5 crore, 4-digit HSN is mandatory for B2B. Below ₹1.5 crore, HSN may be optional. The tool accepts any HSN/SAC string — use whatever your CA confirms is correct for your turnover bracket and the goods or services you sell.

Question 5

How do I save this as a PDF?

Accepted Answer

Click "Print invoice" and pick "Save as PDF" as the destination in your browser print dialog. The print stylesheet hides the form, header, and footer — only the invoice itself prints. Works the same on Chrome, Safari, Firefox, and Edge.

Question 6

Does the tool save my data anywhere?

Accepted Answer

No. All calculation runs in your browser. There is no backend, no database write, no analytics on form contents. Refresh the page and your invoice is gone — copy or save the PDF before you leave.

Question 7

My buyer is unregistered (no GSTIN). Can I still use this?

Accepted Answer

Yes. Leave the buyer GSTIN blank or write "Unregistered". The invoice will print without a buyer GSTIN line — which is correct for B2C supply. Place of supply still drives CGST+SGST vs IGST math, so pick the buyer's state correctly.

GST Invoice Generator (India)

Tax Invoice

Invoice details

Supplier (you)

Buyer (bill to)

Line items

Invoice preview

Tax Invoice

Need a real website to go with this?

Frequently Asked Questions

Is this a real GST-compliant invoice?

When does the tool apply CGST + SGST vs IGST?

Which GST rates does the tool support?

What is HSN/SAC code and is it mandatory?

How do I save this as a PDF?

Does the tool save my data anywhere?

My buyer is unregistered (no GSTIN). Can I still use this?

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