GST Tool

GSTIN Validator

Instantly verify whether a GSTIN is structurally valid — including format, embedded PAN, entity type and checksum — and see a full field-by-field breakdown.

Enter GSTIN Details

Type or paste a GSTIN to check its validity and structure

Your GSTIN Validation Results

Enter a GSTIN and click "Validate GSTIN" to see the full breakdown here.

Format & Checksum Verification Embedded PAN & Entity Type GST State Code Decoding

GSTIN Format Breakdown (15 Characters)

Digits 1–2GST State Code
Digits 3–7PAN — First 5 Letters
Digits 8–11PAN — 4 Digits
Digit 12PAN — Last Letter
Digit 13Entity / Registration No.
Digit 14Default "Z"
Digit 15Checksum Digit

A valid GSTIN is always exactly 15 alphanumeric characters

PAN Entity Type (4th Character)

PIndividual
CCompany
HHUF
FFirm / LLP
AAssociation of Persons
TTrust
BBody of Individuals
LLocal Authority
JArtificial Juridical Person
GGovernment

The 4th character of the embedded PAN identifies the holder type