Taxpayer Identification Number


Taxpayer Identification Number or TIN refers to a unique identification number assigned to business entities to manage and track transactions. It comes under the Value Added Tax (VAT) system in India and consists of 11 digits.

For businesses involved in VAT-related transactions, and ensuring tax compliance, TIN plays a key role. Trade and goods-related businesses registered under VAT must have a TIN for tax and financial purposes.

So why is TIN important? Read on to understand its key role in business, types of TIN, application process, and so on!


The Taxpayer Identification Number (TIN) helps businesses comply with tax laws by tracking VAT transactions and ensuring proper tax filing. It also allows businesses to claim tax benefits and build credibility.

Importance of TIN Number

As mentioned earlier, businesses registered under the VAT system must have a TIN Number. Here is why:

  • TIN provides a unique identity to businesses which allows tax authorities to efficiently track and monitor VAT-related transactions.
  • Businesses can effectively claim input tax credits on VAT paid for purchases, which reduces their overall tax liability.
  • TIN is mandatory for businesses involved in inter-state sales and purchases, which facilitates seamless trade across state borders.
  • It streamlines the filing of VAT returns and ensures adherence to tax regulations, which reduces the risk of penalties.
  • TIN ensures that a business enterprise follows the tax laws, which boosts its credibility with customers and partners.

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Types of Tax Identification Number (TIN)

The various types of TIN numbers are as follows:

  1. Social Security number (SSN): It is issued by the Social Security Administration and is used to track individuals' earnings and benefits and for tax reporting.
  2. Employer Identification Number (EIN): It is used to identify businesses and certain other entities for tax purposes.
  3. Individual Taxpayer Identification Number (ITIN): It is a tax processing number under the Internal Revenue Service (IRS). ITIN is designed for individuals who are not eligible for SSN.
  4. Adoption Tax Identification Number (ATIN): It is designed to support domestic adoptions wherein the child’s SSN cannot be obtained in time to file income tax returns.
  5. Preparer Tax Identification Number (PTIN): The PTIN is required for each tax return that is filed.

Needs a TIN

A Taxpayer Identification Number (TIN) is essential for businesses and individuals involved in taxable transactions under Value Added Tax (VAT), Goods and Services Tax (GST), or other tax regulations. It serves as a unique identifier for tax purposes.

Who Requires a TIN?

  • Businesses Registered Under VAT/GST – Any entity involved in the sale of goods and services that requires tax registration must obtain a TIN/GSTIN.
  • Dealers & Traders – Wholesale and retail traders dealing in taxable goods need a TIN for tax compliance.
  • Manufacturers & Suppliers – Those producing goods and distributing them across states must register for TIN.
  • Importers & Exporters – Businesses engaged in international trade require a TIN for customs and tax documentation.
  • Service Providers – Certain service-oriented businesses may also need a TIN, depending on state-specific tax regulations.

Format of TIN Number

In India, the format of the Tax Identification Number (TIN) consists of 11 digits in total that comprise a state code and a combination of numbers.

First Two Digits Represent the state code where the business is registered
Remaining Nine Digits Unique combination is assigned to each taxpayer within the state.

List of State Codes for First Two Digits of TIN in India

Below is a table that provides a list of state codes and the first two digits of TIN for each state in India.

State Name State Code TIN - First two digits
Andhra Pradesh AP 28
Andhra Pradesh (New) AD 37
Arunachal Pradesh AR 12
Assam AS 18
Bihar BH 10

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Steps to Apply for TIN Online

It is important to note that since 2017, the VAT has been replaced by Goods and Services Tax (GST). However, TIN remains relevant for certain transactions and tax requirements under state-specific regulations.

The application process for TIN varies by state. Therefore, here are some general steps to follow:

  • Visit the official VAT website or the State Tax Department Website.
  • Fill out the application form with details such as PAN, address, etc.
  • Upload the necessary documents.
  • Submit the application form.

Once your registration is complete, the Tax Authorities will verify your business details and issue your TIN.

Documents to Apply For Tax Identification Number

The documents required to apply for a TIN Number may vary based on the state laws. However, here are some of the general documents needed:

  • Identity Proof such as PAN Card, Aadhar Card, Passport, etc.
  • Address Proof such as rental agreements, utility bills, etc.
  • Business Address Proof.
  • Tax-related documents.
  • Passport-size photographs.

Check TIN Application Status

You can track your TIN application status online with a tracking system. Here are some of the general steps to be followed:

  • Visit the official website of your state's Commercial Tax Department.
  • Under the ‘Services’ section, check for ‘TIN Status’ or ‘Application Status.’
  • Enter your application reference number or acknowledgment number.
  • Click ‘Submit’ and check the current status.

Difference Between GSTIN & TIN

With the introduction of the Goods and Services Tax (GST) in 2017, the GST Identification Number (GSTIN) has replaced TIN for indirect taxation. However, TIN continues to be relevant for transactions involving certain goods that are subject to state-level VAT.

Check the table below to learn the key differences between GSTIN and TIN.

Feature GSTIN TIN
Full Form Goods and Services Tax Identification Number Taxpayer Identification Number
Format 15-digit alphanumeric code An 11-digit numeric code
Function Provides identity to businesses registered under GST law Provides identity to businesses registered under the Value Added Tax (VAT) system
Issued By Central Government via the GST Network (GSTN) State Government's Commercial Tax Department

Difference Between TIN & Tax ID

A Taxpayer Identification Number (TIN) and Tax ID are often used interchangeably, but they serve different purposes depending on the tax system and country.

Factor TIN Tax ID
Purpose Used for VAT/GST registration Used for all tax-related purposes
Scope Mainly for businesses Can apply to individuals & businesses
Issuing Authority State tax department (for VAT) Tax authority of respective country
Status in India Replaced by GSTIN PAN serves as a Tax ID for direct taxes

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Frequently Asked Questions

A Taxpayer Identification Number (TIN) is an 11-digit unique identifier assigned to businesses registered under the Value Added Tax (VAT) system.

Check the VAT registration certificate issued by your state's Commercial Tax Department.

Yes, the PAN is a tax identification number in India that is used for all tax-related transactions with the Income Tax Department.

To apply for a Tax Identification Number (TIN) in India, submit the required documents and application form to your state's Commercial Tax Department. Note that the process may differ based on the state.

In India, businesses previously needed a TIN under the VAT system. After GST was introduced in 2017, GSTIN replaced TIN for most businesses, though TIN may still be required for certain state-specific transactions.

The documents required to apply for TIN include identity proof, address proof, business registration proof, passport-size photographs, etc.

The time to get a Tax Identification Number (TIN) in India depends on the specific state’s procedures.

If you lose your TIN, contact your state's Commercial Tax Department for guidance on retrieving or reissuing your TIN.

The TIN is primarily used for tracking Value Added Tax (VAT) transactions and is not used for filing income tax returns.

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