Azerbaijan’s FIN (Fərdi İdentifikasiya Nömrəsi — personal identification number) is the 7-character alphanumeric identifier printed on the national ID card and used by the State Tax Service. Unlike most national IDs, it mixes letters and digits. This tool validates the structural format of a FIN entirely in your browser.
How it works
A valid Azerbaijani FIN must satisfy two structural rules:
- After removing spaces and uppercasing, it must be exactly 7 characters long.
- Every character must be an uppercase Latin letter
A–Zor a digit0–9.
Azerbaijan does not publish an official public check-digit formula for the FIN, so the validator deliberately checks structure only rather than inventing a checksum that would reject valid codes. If both rules pass, the format is valid.
Example
Input: 5gxm4dz → uppercased to 5GXM4DZ → valid format (7 alphanumeric)
Input: 5GXM4D → invalid (only 6 characters)
Input: 5GXM-4DZ → cleaned to 5GXM4DZ → valid format
Input: 5GXM4D! → invalid (illegal character)
Notes
A “valid format” result means the value could be a FIN — it does not confirm the code is assigned to a real individual; only Azerbaijan’s State Tax Service can confirm that. The FIN is the short 7-character personal identifier, distinct from the ID card’s document number. Because all processing is local, the tool is safe for HR, banking and KYC pre-checks.