GST Utility by CA Gyaan Sadhna
GSTIN Validator
Checks a 15-character GST Identification Number for correct structure and a valid checksum digit, and decodes the state, PAN and registration details it encodes.
Validation Result
Enter a GSTIN above and tap Validate
Checksum (15th digit) is verified per the CBIC mod-36 check-digit scheme. This confirms structural and checksum validity only.
It does not confirm the GSTIN is registered or active — verify that on the official GST portal.
Disclaimer: This tool is provided for educational and illustrative purposes only. It does not verify registration status, filing compliance, or activity of any GSTIN with GSTN/CBIC. Always confirm details on the official GST portal (www.gst.gov.in) before relying on them for any legal, tax, or business purpose. CA Gyaan Sadhna Team accepts no liability for decisions made based on this tool.