Tax identification numbers entered our lives in 1995. Recently, as we started doing many of our transactions through e-Government, this number began to be queried through internet searches.
So, what does a tax number mean? How to query a tax number? Can we access information about the tax number on the Revenue Administration (GİB) website? How to query the tax number via e-Government? You can find detailed answers to these and many other questions in this article.

What is a Tax Identification Number?

Before explaining the tax identification number query, let's provide detailed information about the tax identification number:
As stated in the official website sources of the Central Union of Turkey Craftsmen and Artisans Credit and Guarantee Cooperatives (TESKOMB), the tax identification number is a number that is mandatory to be used in records and documents to be prepared regarding legal transactions made by public institutions and organizations, and real and legal persons.

The tax identification number began to be implemented on July 3, 1995.
Every real person and legal entity residing in the Republic of Turkey is obliged to obtain a tax identification number.

What is a Potential Tax Identification Number?

The potential tax identification number is a number given to non-taxpayers to temporarily carry out tax transactions. It is used for individuals or transactions that do not have a continuous relationship with the tax system:

Those who earn income occasionally (irregularly),
Businesses in the establishment phase,
Foreigners entering Turkey can carry out certain tax transactions by obtaining this number.

The potential tax identification number is valid during the transaction period and can be converted to a permanent tax identification number if necessary.

What is a Single Tax Identification Number?

The single tax application is an application that has been valid since 1995, obliging all taxpayers, except banks, to use a single tax identification number in their activities, including all branches and centers. Thus, taxpayers can be monitored with a single tax identification number.

Why is a Tax Identification Number Necessary?

To put it briefly, the tax identification number is essential for individuals and businesses to fulfill their tax obligations.
Tax declarations, payments, and other financial transactions are tracked with this number. In this way, the records of taxpayers can be managed regularly and transparently.

What is the Tax Identification Number Used For?

The tax identification number is used for individuals and businesses to;

Submit tax declarations,
Make tax payments,
Pay tax debts,
For tax declarations, refunds, and other official transactions related to the tax office.
It is necessary to monitor and audit the tax activities of taxpayers.
In addition, the tax identification number is required for financial transactions such as opening bank accounts and issuing invoices.

Who Are the Real and Legal Persons Obliged to Obtain a Tax Identification Number? -

Those subject to this obligation can be listed as follows:

Real and legal persons who buy and sell motor vehicles
Real and legal persons who buy and sell real estate
Real and legal persons for whom a mortgage is established in their favor
Real and legal persons who have a building constructed and registered in the land registry
The five partners with the highest share ratio, the chairman and members of the board of directors, and the general managers of newly established capital companies.
Limited liability company managers

How to Obtain a Tax Identification Number?

Let's examine the valid situations for learning the tax identification number under different conditions together.

Company Tax Identification Number Query

The company's tax identification number can be learned using one of the methods explained below; that is, through the Digital Tax Office, e-Devlet, and tax directorates. It will be sufficient to enter the necessary information into the system to learn the company's tax identification number.

Obtaining a Tax Identification Number for Foreigners

Foreigners who have entered Turkey can perform tax identification number query processes digitally.

The form on the "Potential Tax Identification Number Application for Foreigners" link is used for this purpose.
After the relevant form is filled out completely and the photo page of the passport is uploaded to the system, foreigners can view their potential tax identification number without any other process.

Personal Tax Identification Number Query

The tax identification numbers of real persons are their Turkish ID numbers.

You can see this number directly on your identity card or all documents replacing the identity card.
You can also use the service where your defined identity documents are listed on the e-Devlet system and access the number digitally.

How to Find the Tax Identification Number of Another Company?

You can check the tax identification number of a company whose trade name you know through MERSİS or the Trade Registry Gazette.

Association Tax Identification Number Learning

As of 2021, the integrations regarding the provision of a tax identification number and MERSİS number to associations from the moment of their establishment have been completed. Associations can learn their tax identification numbers through DERBİS and the Digital Tax Office.

How to Get a Tax Identification Number on Instagram?

If you operate as a business on Instagram, the system asks you to enter your tax information and, consequently, your tax identification number to receive payment. For this, you need to register your business as a sole proprietorship or one of the other company types and obtain a tax plate. Afterward, you can enter your tax identification number into the system.

Where to Query the Tax Identification Number?

There are several ways to query the tax identification number.

1. Tax Identification Number Query via Digital Tax Office

You can easily learn your tax information on the website of the Digital Tax Office. To do this query, it is enough to follow the simple steps below:

First, log in to the Digital Tax Office website.
Use the search section at the top of the page that appears to enter the “tax identification number query” section.
Enter your information such as name, surname, father’s name, place of birth, and year of birth on the opened screen. When you fill in this information completely, you can learn your tax identification number.

2. How to Obtain a Tax Identification Number via e-Devlet?

You can also perform your tax identification number query practically via e-Devlet. To do this, follow the simple steps below:

Go to the tax identification number verification page at https://www.turkiye.gov.tr/gib-intvrg-vergi-kimlik-numarasi-dogrulama.
To continue the process, perform your e-Devlet login. At this stage, you are expected to enter your Turkish ID number and e-Devlet password. If you do not have an e-Devlet password, you can easily obtain one from PTT branches.
After logging into the system, click the “go to application” button on the page you are automatically directed to.
You will be redirected to the “tax identification number query page” on the official website of the Revenue Administration Digital Tax Office from the opened screen. You can easily access all the information you want on this screen.

3. Tax Identification Number Query from the Tax Office

If your access to digital facilities is limited or if you are looking for another way to learn your tax identification number, you can also apply to your affiliated tax office.

How is Tax Identification Number Verification Done?

For the tax identification number verification process, similar to the query process, you can use the verification screen in the Digital Tax Office or the “Tax Identification Number Verification” service via e-Devlet.

Where is the Tax Identification Number Written?

The tax identification number is written:

For real persons, on all official documents where the identity number is written,
For companies, on official documents belonging to the company,
On the company’s website on corporate communication pages or other promotional areas,
On documents such as invoices and waybills belonging to the company.

Where is the Tax Identification Number Written on the Invoice?

The tax identification numbers of the sender and receiver companies are written at the very top of the invoice. You can check the company's tax identification number from this section.

Where is the Tax Identification Number Written on the Stamp?

One of the information that should be on company stamps is their tax identification numbers. Therefore, you can see the tax identification number along with details such as the company name and contact information on a company stamp.

Tax Identification Number Examples

You can examine the two numbers we shared below as tax identification number examples:

Türk Telekom Tax Identification Number: 8760052205
Hepsiburada Tax Identification Number: 2650179910

What is a Tax Identification Number? How to Query It?