All about GSTIN: Meaning, Format, Importance & Verification

All about GSTIN: Meaning, Format, Importance & Verification

In the world of taxation, implementing the Goods and Services Tax (GST) has revolutionized how businesses operate. As a part of this tax regime, businesses are assigned a unique identification number known as the GSTIN. In this blog, we will explore the meaning, format, importance, and verification process of GSTIN.

1. What is the Meaning of  GSTIN?

GSTIN Full Form is Goods and Services Tax Identification Number that is a unique alphanumeric code assigned to every registered business under the GST regime. It serves as an identification number for a business entity and is used to track its tax-related activities. The GSTIN is required for various purposes, including filing tax returns, claiming input tax credit, and conducting business transactions within the GST framework.

The introduction of the GST brought significant changes to the taxation system in India. Prior to the implementation of GST, dealers registered under the state VAT law were allocated a unique TIN number by their respective state tax authorities. Similarly, service providers were assigned a service tax registration number by the Central Board of Indirect Taxes and Customs (CBIC).

However, with the advent of the GST regime, a unified platform was established to streamline compliance and administration processes. All registered taxpayers were brought under a single authority for taxation purposes.

As part of this transition, every business operating within a state or Union territory is now assigned a distinctive identification number called the GSTIN that serves as a unique identifier for businesses and facilitates compliance with the GST framework.

2. GSTIN Format:

The GST Identification Number (GSTIN) consists of 15 characters, divided into different sections to provide specific information about the taxpayer. Here is the breakdown of the format:

✅ The first two digits of the GSTIN represent the state code as per the Indian Census. Each state in India has a unique code assigned to it. For example, 07 represents Delhi, 27 represents Maharashtra, and so on.

✅ The following ten characters of the GSTIN Number are derived from the taxpayer's PAN issued by the Income Tax Department. This helps in identifying the PAN holder's information.

✅ The thirteenth digit of the GSTIN is the entity number, which is allocated based on the number of registrations a business entity has within a state. The entity number ranges from 1 to 9. For instance, if a business has only one registration within a state, the entity number will be 1.

✅ The 14th character in the GSTIN is always a letter 'Z', which acts as a default value for future use.

✅ The 15th and final digit in the GSTIN is a check code. It can be either a letter or a number and is generated using a specific algorithm to detect any errors in the GSTIN.

3. How GSTIN Number is Important for Businesses?

Understanding the GSTIN is crucial for businesses operating under the GST regime. Let's explore the various benefits of GSTIN Number:-

✅ Obtaining a GSTIN grants you the status of a legally recognized supplier. This recognition helps build trust among customers and attracts a larger consumer base to your business.

✅ With a GSTIN, you can claim the input tax credit on your purchases. This means you can offset the GST paid on inputs against the GST collected on sales, reducing your overall tax liability.

✅ Once you have grasped the concept of GSTIN, the advantages are numerous. As a GSTIN holder, you can expand your business by listing your goods on e-commerce websites or even establishing your own e-commerce platform.

✅ Having a GSTIN Number opens up new avenues for small business owners. It enables them to engage in interstate supplies effortlessly. Some small and medium enterprises (SMEs) can even choose to operate as casual taxable persons, allowing them to conduct occasional transactions across state borders.

✅ Filing returns becomes streamlined and automated for businesses holding a GSTIN. By complying with all GST rules and regulations, you establish your business as a responsible entity. This, in turn, enhances your business reputation, leading to better sales numbers.

4. How To Verify GSTIN ?

To verify the authenticity of a GSTIN, various online portals and tools are available. The GST portal maintained by the Goods and Services Tax Network (GSTN) provides a search functionality where one can verify the validity of a GSTIN. Additionally, several third-party websites and mobile applications offer similar services, allowing users to cross-check the GSTIN details provided by a business entity. 

5. How to apply for GSTIN?

Applying for a GSTIN involves a step-by-step process. Here's a guide on how to apply for GSTIN in India:

 Prepare the necessary documents and information required for GST registration. These typically include:

✔ PAN (Permanent Account Number) of the business or individual.

✔ Proof of business registration, such as partnership deed, registration certificate, or incorporation certificate.

✔ Address proof of the principal place of business.

✔ Identity and address proof of promoters, partners, or proprietors.

✔ Bank account details.

✔ Digital signature certificate (DSC) (if applicable).

✅ Visit the official GST portal ( and navigate to the GST registration section. Click on "New Registration" to initiate the online registration process.

✅ Fill out the GST registration application form with accurate information. Provide details such as business name, address, contact information, nature of business, and authorized signatory details. Upload the required documents in the specified formats.

 Once the application form is completed, submit it electronically on the GST portal. The system will generate an Application Reference Number (ARN) for future reference.

✅ The GST authorities will review the application and may conduct a physical verification if required. They may also seek additional documents or information during the verification process.

 Upon successful verification, the GSTIN will be issued to the applicant. The GST Identification Number can be obtained through the GST portal. Additionally, a GST registration certificate will be issued as proof of registration.

 Applying for GSTIN is a crucial step to comply with GST regulations, enjoy the benefits of input tax credits, and operate legally within the GST framework.


The GSTIN plays a crucial role in the GST regime. It helps businesses comply with tax laws, claim input tax credits, and facilitate inter-state transactions. The format of the GSTIN provides specific information about the taxpayer, and its verification ensures transparency and accountability. Understanding the importance and verification process of the GSTIN is essential for businesses to operate smoothly within the GST framework.

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BY: Admin Tax4wealth

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