GST Invoice Generator
Make a GST tax invoice with HSN codes, CGST/SGST or IGST worked out from the place of supply, amount in words, and a PDF download.
"Download PDF" opens your browser's print dialog. Choose "Save as PDF" as the printer.
How to use the GST Invoice generator
- Fill in your business details once; they're remembered in this browser for the next invoice.
- Add the customer and each line item. Totals, tax and the amount in words update in the preview as you type.
- Press Download PDF and choose Save as PDF in the print dialog, or print it directly.
About this tool
Builds a tax invoice with the details Rule 46 of the CGST Rules asks for: supplier and recipient GSTIN, invoice number and date, HSN/SAC, taxable value, rate and tax split, place of supply and signature. Same-state supplies get CGST + SGST; different states get IGST.
Built and reviewed by Savitar Finance (savitarfinance@gmail.com). Rules and rates last checked October 2026. How we calculate · Report a problem
Questions people ask
When do I charge CGST + SGST and when IGST?
If your state and the place of supply are the same, split GST equally into CGST and SGST. If they differ, charge the full rate as IGST. The generator does this from the two state fields.
Is an HSN code mandatory on invoices?
Businesses with turnover up to ₹5 crore must show 4-digit HSN on B2B invoices; above ₹5 crore, 6 digits on all invoices. Services use SAC codes.