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Free GSTIN checker & validator

Check any 15-character Goods and Services Tax Identification Number (GSTIN) instantly. Decodes the state jurisdiction, business PAN, registration number, and check digit.

Nothing you type leaves your browser.Instant format & check-digit check

Enter 15-character GSTIN

Lowercase letters & spaces are cleaned automatically0/15 chars

Structure of an Indian GSTIN (15 characters)

01–38 (97 and 99 for special cases)State code

AAAAA0000A10-digit PAN

1–ZEntity #

ZDefault char

0–ZCheck digit

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