Turkey Tax ID Numbers
National Identity Number (NIN)
For Individuals, Example: 17291716060
The Turkish National Identification Number (NIN) consists of 11 digits in the format NNNNNNNNNNN where the last two digits are check digits. It is a unique personal identification number assigned to every citizen of Turkey. The NIN is used as the unique identification number for Turkish citizens. All Turkish citizens automatically have TIN, since there is a legal obligation to use national ID numbers as TIN in domestic law.
Vergi Kimlik Numarasi (VKN)
For Individuals, Entities, VAT, Example: 1729171602
The Vergi Kimlik Numarasi (VKN) is a 10-digit number in the format NNNNNNNNNN. The Vergi Kimlik Numaras is the Turkish tax identification number used for businesses and certain foreign individuals. The number consists of 10 digits where the first digit is derived from the company name.
Format Guide: N = Number; A = Letter; X = Number or Letter
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