This free GST Invoice Generator creates a print-ready tax invoice with automatic CGST/SGST or IGST calculation based on whether your business and your customer are in the same state. It also validates the format of any GSTIN entered (the 15-character structure and check digit), converts the total into words, and lets you download or print the invoice as a PDF directly from your browser.
For a fully automated workflow — where entering a GSTIN auto-fills the registered business name and confirms it is active with the government — a real-time GSTIN verification API can be integrated. Get in touch if you'd like this added for your account.
Yes, the format follows standard GST tax invoice requirements under the CGST Rules — including invoice number, HSN/SAC codes, tax break-up, and supplier/recipient details. Please ensure your invoice numbering follows a consistent, sequential series as required by law.
If your business state and the customer's place of supply are the same, the tax is split equally into CGST and SGST. If they are different states, IGST applies at the full rate instead.
No — it only checks that the GSTIN follows the correct 15-character format and check-digit pattern. Real-time verification against the GST database requires a paid third-party API and can be added on request.