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What is Taxpayer Identification Number (TIN)

A Taxpayer Identification Number or TIN number is an 11-digit unique identification number assigned to businesses and tax related purposes by the Commercial Tax Department of the respective state. It is primarily used to monitor VAT-related transactions.

  • 39,623 Views | Updated on: Aug 13, 2025

What is the TIN Number?

A TIN number is an 11-digit identification number issued to individuals and businesses as part of the tax registration process under the VAT (Value Added Tax) or CST (Central Sales Tax) systems. This number is provided by the Commercial Tax Department of the respective state where the business is registered. It is essential for businesses involved in the sale of goods across states and helps ensure proper tax administration.

The number typically begins with a two-digit state code followed by nine digits that uniquely identify the taxpayer. Authorities use the TIN to track VAT/CST payments, monitor tax compliance, and detect potential tax evasion. To maintain financial accountability and transparency, the TIN must be displayed on all VAT invoices, quotations, and other tax-related documentation.

Why is TIN Required?

TIN is critical primarily for tax-related functions, encompassing key tasks such as filing tax returns, facilitating tax payments, and seeking tax refunds. Additionally, it plays a crucial role in conducting business transactions that involve taxation, ensuring compliance with relevant regulations. By providing a unique identifier for taxpayers, TIN empowers the government to track taxable activities and effectively mitigate tax evasion. This, in turn, fortifies revenue collection endeavors, contributing to the nation’s financial stability.

When is TIN Required?

A TIN number is necessary for businesses engaged in selling goods and services that fall under the VAT structure. It becomes mandatory when a business is involved in interstate trade or commerce, as such activities require a valid TIN for regulatory compliance. Additionally, businesses need a TIN to file VAT returns, claim tax refunds, and adhere to state-specific tax norms. The nature and structure of the business, such as whether it is a sole proprietorship, partnership, or company, can influence how it manages these tax-related obligations.

Who Needs a TIN (Taxpayer Identification Number)?

Securing a Taxpayer Identification Number (TIN) is mandatory for diverse participants in India’s economic field. This requirement extends to individual taxpayers and encompasses businesses of varying sizes and legal structures, including corporations, partnerships, and other entities. Whether salaried employees or self-employed professionals, all those actively involved in economic activities subject to taxation within the nation’s jurisdiction must obtain a TIN.

How to Apply for a TIN Number in India?

Applying for a TIN number in India can be done either online or offline. Here’s a step-by-step breakdown of both processes:

Online Method

  • Step 1: Visit the official VAT or Commercial Tax Department portal of your state.
  • Step 2: Fill out the online registration form with all required details specific to your state.
  • Step 3: Upload supporting documents like identity proof, business registration certificate, address proof, and other relevant paperwork.
  • Step 4: Submit the form and documents through the portal.
  • Step 5: The Commercial Tax Department will review and verify your application.
  • Step 6: Once approved, your taxpayer identification number will be issued along with a provisional VAT registration certificate, which can be downloaded online.

Offline Method

  • Step 1: Download the registration form from your state’s Commercial Tax Department website or collect it in person.
  • Step 2: Complete the form accurately with the necessary details and affix your signature.
  • Step 3: Attach supporting documents and submit the complete application package to the nearest facilitation center.
  • Step 4: After verification by the tax officials, your TIN will be issued along with the VAT registration certificate for your business.

Importance of TIN Number

The TIN number is at the core of enhancing the efficiency of the tax administration system. It serves as an anchor in the process of identifying and evaluating taxpayers, streamlining tax authorities’ operations. Moreover, its implementation ensures a transparent, accurate, and accountable environment for all tax-related activities. This promotes economic stability and strengthens financial discipline, laying a strong foundation for sustainable financial management and growth.

Types of Tax Identification Numbers (TIN)

There are various kinds of Taxpayer Identification Numbers that are used globally to make the tracking process easier for tax authorities:

Social Security Number

The Social Security Number (SSN) is a unique nine-digit number issued by the U.S. government to its citizens, permanent residents, and temporary workers. It is primarily used to calculate Social Security benefits. But it also acts as a key identifier for tax purposes.

Individual Taxpayer Identification Number

For individuals who are not eligible to receive the SSN, the Individual Taxpayer Identification Number (ITIN) is relevant. This applies to foreign nationals, non-residents, and dependents or spouses of U.S. citizens. It functions similarly to tax identification number India for individual cases, offering a means to comply with tax obligations when a standard taxpayer ID is not applicable.

Employer Identification Number (EIN)

The Internal Revenue Service (IRS) also issues an Employer Identification Number (EIN) to identify businesses in the U.S. It is a nine-digit number required for entities that employ workers, pay payroll taxes, or handle tax filings.

Adoption Tax Identification Number

Used in special circumstances, the Adoption Tax Identification Number (ATIN) is a temporary number issued by the IRS for children in the process of being adopted. This number allows adoptive parents to claim tax benefits, such as the Child Tax Credit, while awaiting the issuance of the child’s Social Security Number.

Preparer Tax Identification Number

The Preparer Tax Identification Number (PTIN) is issued to professional tax preparers in the U.S. by the IRS.

What is the Format of the TIN Number?

The format of taxpayer identification numbers in India varies from state to state. However, it generally comprises a unique combination of alphanumeric characters, with the first two digits representing the state code and the remaining digits denoting the taxpayer’s identification sequence.

List of State Codes for the First Two Digits of Taxpayer Identification Numbers in India

Here is a list of state codes commonly used in Taxpayer Identification Numbers (TIN) across India:

State Name (State Code) TIN Number Starts From
Jammu & Kashmir (JK) 01
Himachal Pradesh (HP) 02
Punjab (PB) 03
Chandigarh (CH) 04
Uttarakhand (UT) 05
Haryana (HR) 06
Delhi (DL) 07
Rajasthan (RJ) 08
Uttar Pradesh (UP) 09
Bihar (BH) 10
Sikkim (SK) 11
Arunachal Pradesh (AR) 12
Nagaland (NL) 13
Manipur (MN) 14
Mizoram (MI) 15
Tripura (TR) 16
Meghalaya (ME) 17
Assam (AS) 18
West Bengal (WB) 19
Jharkhand (JH) 20
Orissa (OR) 21
Chhattisgarh (CT) 22
Madhya Pradesh (MP) 23
Gujarat (GJ) 24
Daman & Diu (DD) 25
Dadra & Nagar Haveli (DN) 26
Maharashtra (MH) 27
Andhra Pradesh (AP) 28
Karnataka (KA) 29
Goa (GA) 30
Lakshadweep (LD) 31
Kerala (KL) 32
Tamil Nadu (TN) 33
Puducherry (PY) 34
Andaman & Nicobar Islands (AN) 35
Telangana (TS) 36
Andhra Pradesh (AD) 37

Difference between GSTIN and TIN

GSTIN and TIN are unique identifiers used for taxation purposes in India. However, GSTIN specifically pertains to the Goods and Services Tax (GST) regime introduced in 2017, while TIN meaning has been discussed in the sections above. It is basically an identifier used for VAT or CST-related purposes. GSTIN is now essential for businesses to avail of benefits like input tax credit, enabling them to offset taxes paid on purchases against their tax liability.

Documents Required to Apply for TIN Number

The documents required for TIN registration may vary depending on the applicant’s category and jurisdiction. However, commonly requested documents include:

  • Proof of identity (e.g., Aadhaar card, passport, voter ID)
  • Proof of address (e.g., utility bill, rental agreement, bank statement)
  • Business registration certificate (for businesses and entities)
  • PAN card (for individuals and businesses)

The Bottom Line

TIN is a vital component of India’s tax infrastructure, facilitating efficient tax administration and compliance. By obtaining a TIN, taxpayers contribute to the country’s economic development while ensuring their legal and financial compliance with tax laws and regulations. It is important to note here that GST has replaced VAT in most cases except for certain products like alcohol and petroleum. Thus, tax authorities primarily use GSTIN to track indirect tax-related transactions. Still, the TIN number India continues to be relevant for products on which VAT is charged and for inter-state sales.

FAQs on TIN Number


1

What is a TIN number in India?

A TIN number in India is a taxpayer identification number, a unique alphanumeric identifier assigned to individuals, businesses, and entities for tax purposes.

2

How can I find my TIN number in India?

Your TIN number can be found on your tax registration documents or by contacting the relevant tax authority in India

3

Are TIN and PAN the same?

No, TIN (Taxpayer Identification Number) and PAN (Permanent Account Number) are not the same. While both are used for tax purposes, TIN is used to track VAT, whereas PAN is primarily used for income tax purposes.

4

What is the TIN number in India for NRI?

NRIs (Non-Resident Indians) may also need to obtain a TIN number in India if they have taxable income or engage in taxable activities within the country.

5

What is TIN in income tax?

In income tax, TIN stands for Taxpayer Identification Number, which is used to identify taxpayers and track their tax obligations and transactions.

6

What is the difference between GST and TIN?

GST (Goods and Services Tax) is a comprehensive indirect tax levied on the supply of goods and services in India, while TIN (Taxpayer Identification Number) is a unique identifier used for VAT.

7

What is the full form of the TIN number?

The full form of TIN is the Taxpayer Identification Number, which serves as a unique identifier for taxpayers in India.

Amit Raje
Written By :
Amit Raje

Amit Raje is an experienced marketer who has worked in various Fintechs and leading Financial companies in India. With focused experience in Digital, Amit has pioneered multiple digital commerce in India. Now, close to two decades later, he is the vice president and head of the D2C business department. He masters the skill of strategic management, also being certified in it from IIMA. He has challenged his challenges and contributed his efforts in this journey of digital transformation.

Amit Raje
Reviewed By :
Prasad Pimple

Prasad Pimple has a decade-long experience in the Life insurance sector and as EVP, Kotak Life heads Digital Business. He is responsible for developing user friendly product journeys, creating consumer awareness and helping consumers in identifying need for life insurance solutions. He has 20+ years of experience in creating and building business verticals across Insurance, Telecom and Banking sectors

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The information herein is meant only for general reading purposes and the views being expressed only constitute opinions and therefore cannot be considered as guidelines, recommendations or as a professional guide for the readers. The content has been prepared on the basis of publicly available information, internally developed data and other sources believed to be reliable. Recipients of this information are advised to rely on their own analysis, interpretations & investigations. Readers are also advised to seek independent professional advice in order to arrive at an informed investment decision. Further customer is the advised to go through the sales brochure before conducting any sale. Above illustrations are only for understanding, it is not directly or indirectly related to the performance of any product or plans of Kotak Life.

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