GST Number Search & Verification
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GST Number Search & Verification
Enter a GSTIN to check its structure, decode what each character means, and confirm the checksum is valid — instantly, in your browser. Connect an API key to also pull live registration status and filing history.
Type a 15-character GSTIN — the breakdown below updates as you type.
Anatomy of this GSTIN
State code — chars 1–2
PAN — chars 3–12
Entity count — char 13
'Z' by default — char 14
Checksum — char 15