Govt API Gateway
GST Number Verifier
Instantly validate the structure of any 15-digit GSTIN, decode the underlying PAN and State, and check official taxpayer details securely.
Valid GSTIN Format
The entered GSTIN does not match the official structure (2 Digits + 10 Char PAN + 3 Codes).
💡 Did you know? A valid GSTIN is built using the State Code (First 2 digits), the business owner's PAN (Next 10 characters), an Entity Number (13th digit), the letter 'Z' by default (14th char), and a Checksum character (15th char).