What is GST Registration Number? Structure and Process

The concept of GST Registration is explained in last blogs. This article will give you an idea on what is GST Registration Number under GST scheme. It is mandatory for businesses that meet certain criteria to register for GST. Once registered, a business obtains a unique GST identification number, enabling them to collect GST on sales, claim input tax credits (ITC) on purchases, and fulfill other compliance requirements. The specific rules and thresholds for GST registration vary by country.

What is GST Registration Number?

GST registration refers to the process of specifying a business or individual for the Goods and Services Tax (GST), a consumption tax charged on the supply of goods and services in many countries. The GST number is also recognized as a Goods and Services Tax Identification Number (GSTIN).

It is a unique identification given to businesses registered under the GST system. It is used for filing tax returns, tracking transactions, and other compliance related actions. GSTIN contains 15-digits, and it may vary country by country but typically contains PAN (Permanent Account Number), State code, entity code, and Check digit.

What is GST Registration Number format in India?

GST registration number format consists of 15 alphanumeric characters.

For example, consider 22AAAAA0000A1Z5 as the GST Registration Number.

  • On breaking down the number;
    • The first two digits depict the state code, and every state has its unique code.
    • The next ten characters are the PAN of the taxpayers.
    • The thirteenth character indicates the code of entity within the state for differentiation.
    • The fourteenth character is the ‘Z’ by default and is reserved for future use.
    • The fifteenth character is the check digit for error detection in data entry.

What is GSTN?

GSTN stands for Goods and Service Tax Network is the organization responsible for creating and maintaining the IT infrastructure for the implementation of the GST in India. It is the digital backbone of India’s tax system which ensure a smooth and efficient Goods and Services Tax structure in India.

How is GSTN different from GSTIN?

GSTN facilitates the administration of GST, including registration, return filing, and tax payment processes. It ensures smooth and efficient functioning of the GST system by providing a common platform for taxpayers, tax authorities, and other stakeholders. It acts as a tech framework for

On the other hand, Goods and Services Tax Identification Number (GSTIN) is a specific identifier assigned to individual businesses. It comprises 15 characters, with the first two representing the state code, the next ten representing the PAN of the taxpayer, one character indicating the entity type, and the last two being a check code.

How do we get GST Registration Number?

Obtaining GSTIN is a part of GST registration process. Once after applying for the GST registration, submit all the required documents and once the application is approved you will get the 15-digit number, that is the GST number. Access the official GST portal of your country.

The process may vary depending on your location. Look for the registration tab on the portal and click on it. Fill in the required information, complete the registration form with accurate details about your business, such as business name, type, PAN, and contact information. Attach the necessary documents as specified by the authorities, this may include PAN card, proof of business registration, bank statements, and address proof.

After the verification process, you will be assigned a GSTIN. This number serves as your unique identification for GST purposes. After successful registration, you can download your GST registration certificate from the portal.

Who really needs a GST Registration Number?

A business with a distinct annual turnover is usually required to obtain a Goods and Services Tax registration number. The threshold for GST registration varies among countries. Large ones with higher turnovers are usually required to register where small businesses may be exempted.


In conclusion, getting what is GST registration number is vital for businesses to follow tax regulations and participate in the Goods and Services Tax system. The unique GSTIN serves as a crucial identifier, facilitating transparency and accountability in the business domain. Overall, GST registration number helps in taxpayers’ identification, registration, filing returns, verification and E-Invoicing making tax system run in smoother way.

1. What is GST Registration Number?

The distinctive GSTIN plays a vital role as an identifier, enhancing transparency and accountability within the business landscape. In essence, the GST registration number aids in identifying taxpayers, facilitating registration, filing returns, verification, and E-Invoicing, thereby ensuring the seamless operation of the tax system.

2. On what basis is state code considered in GST registration number format?

The first two digit state code is considered as per Indian Census 2011.

3. What is the check digit in GSTIN format?

The check digit is the last digit of GSTIN format which is used to verify the integrity of the GSTIN.

4. Is GST and PAN Number same?

No, both are completely different.

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