Guideline / Turkey

Turkey Tax ID Number (TIN) Guide 

Introduction 

The Tax Identification Number (TIN) is a crucial component for individuals, businesses, and legal entities in Turkey to comply with tax obligations. It serves as the primary identification number for tax reporting, business operations, and various financial transactions. A TIN is required for income tax filing, VAT registration, and for performing a wide range of official administrative procedures. This guide provides an authoritative overview of Turkey’s TIN system, ensuring complete accuracy and reliability, as all information is sourced from official Turkish government authorities. 

Official TIN Types & Local Names 

Turkey utilizes several TIN types, each tailored for different categories of taxpayers. These TIN types are specifically designated by the Turkish tax authority. 

1. Individuals 

  • Vergi Kimlik Numarası (VKN): This is the personal tax identification number for Turkish citizens and foreign nationals living in Turkey. It is used for all personal tax-related activities, such as income tax filing and social security contributions. 
    • Local Name: Vergi Kimlik Numarası (VKN) 
    • Application: Issued to both Turkish citizens and foreign nationals residing in Turkey. 

2. Businesses (Legal Entities) 

  • Vergi Kimlik Numarası (VKN): This number is used by all businesses, including corporations, partnerships, and other legal entities conducting operations in Turkey. The same VKN is used for both individual taxpayers and legal entities. 
    • Local Name: Vergi Kimlik Numarası (VKN) 
    • Application: Issued to all companies and legal entities registered with the Turkish tax authority. 

3. Foreign Entities / Non-Residents 

  • Vergi Kimlik Numarası (VKN): Foreign entities and non-residents who intend to conduct business or financial transactions in Turkey must also apply for a VKN. This number is used for tax reporting and legal compliance purposes. 
    • Local Name: Vergi Kimlik Numarası (VKN) 
    • Application: Foreign entities must register with the Turkish tax office to obtain a VKN. 

TIN Format & Structure 

1. Individuals (VKN) 

  • Format: The VKN for individuals consists of 11 digits. 
  • Digits Breakdown: The number is purely numeric, with no letters or special characters. 
  • Example: 12345678901 
    • This 11-digit number is a unique identifier for each individual taxpayer in Turkey. 

2. Businesses (VKN) 

  • Format: The format for business VKN is identical to the personal VKN, consisting of 10 digits. 
  • Digits Breakdown: Just like for individuals, the VKN for businesses is a purely numeric identifier, with no letter or special characters. 
  • Example: 9876543210 
    • The 10 digits are used to uniquely identify a business or legal entity within the Turkish tax system. 

3. Foreign Entities / Non-Residents (VKN) 

  • Format: The format for foreign entities or non-residents also follows the 10-digit structure of the personal and business VKN. 
  • Example: 6543210987 
    • Similar to the format for local businesses, foreign entities will be issued an 10-digit VKN to comply with Turkish tax regulations. 

The VKN format is strictly numeric and must follow the exact structure outlined by the Turkish tax authority. 

Issuing Authority 

  • The Revenue Administration of Turkey (Gelir İdaresi Başkanlığı) is the official tax authority responsible for issuing TINs in Turkey. 

Registration Process 

Individuals (VKN) 

  • Eligibility: All Turkish citizens and foreign nationals residing in Turkey must apply for a VKN. 
  • Required Documents: Turkish citizens typically need their national ID, while foreign nationals must present their passport, residence permit, and proof of address in Turkey. 
  • Application Process: The VKN for individuals can be obtained online via the Turkish Revenue Administration’s website, or it can be applied for in person at the local tax office. 
  • Processing Time: VKN registration typically takes just a few minutes if applying online, while in-person registrations may take a few hours to process. 
  • Fees: There are no fees for obtaining a VKN for individuals. 

Businesses (VKN) 

  • Eligibility: All businesses, including foreign companies, need a VKN for tax registration purposes. 
  • Required Documents: Business registration documents, proof of business activity, and identification of the company’s representatives. 
  • Application Process: Companies can apply for a VKN through the Revenue Administration of Turkey online portal or by visiting a tax office. The registration process for legal entities is more involved than for individuals. 
  • Processing Time: The process may take a few days, especially for new businesses. 
  • Fees: No fees are typically charged for obtaining a VKN for businesses. 

Foreign Entities / Non-Residents (VKN) 

  • Eligibility: Foreign businesses or individuals wishing to carry out any form of business activity in Turkey must register for a VKN. 
  • Required Documents: For foreign businesses, registration with the Turkish trade registry and other legal documentation may be required. 
  • Application Process: Non-residents can apply for a VKN either online or in person at the local tax office. A local representative may be required for assistance in some cases. 
  • Processing Time: Registration typically takes 1 to 2 days. 
  • Fees: No registration fees are usually applicable for foreign entities. 

TIN Verification & Lookup 

Verification Process 

  • Individuals and businesses can verify their VKN through the official Turkish Revenue Administration’s website. 

Importance of TIN Validation 

Ensuring that TINs are accurate and valid is critical for both individuals and businesses in Turkey. Incorrect TIN usage can lead to tax penalties, incorrect financial reporting, and delays in business transactions. It is important for businesses to verify TINs before engaging in transactions or submitting tax returns. 

Connection Between TIN & VAT Number (If Applicable) 

In Turkey, the VKN also functions as the VAT Number for businesses. The same number is used for both tax identification and VAT registration. 

  • VAT Number Format: The VAT number is the same as the VKN, formatted as TR12345678901, where the prefix “TR” is added for VAT purposes. 
  • Separate Registration: Businesses must separately apply for VAT registration if their annual turnover exceeds the VAT threshold in Turkey. The VAT registration is handled by the Revenue Administration. 

Importance of TIN Compliance & Validation 

Using an incorrect or invalid TIN can result in significant tax penalties, fines, or problems with business transactions. It is critical for businesses to ensure that their TIN is valid and verified before engaging in any financial or tax-related activities. This ensures smooth operations and adherence to Turkish tax laws. 

High-Authority & Verified References Only 

Unmatched Real-Time Tax ID Validation in 130+ Countries

TaxDo gives you instant access to real-time Tax ID validation/lookup in 130+ countries — powered by direct connections to official tax authorities. Skip the format checks. Get the truth.