Understanding GST Number Format in India

What is a GST Number?

A GST Number, officially known as Goods and Services Tax Identification Number (GSTIN), is a unique 15-digit identification number assigned to businesses registered under the GST system in India.

Structure of a GST Number

The 15-digit GST number follows a specific format:

• First 2 digits: State code as per the Indian Census
• Next 10 characters: PAN (Permanent Account Number) of the business
• 13th digit: Entity number of the same PAN (in case of multiple registrations)
• 14th digit: Alphabet 'Z' by default
• 15th digit: Check digit

Example of a GST Number

Let's break down a sample GST number: 27AABCI6363G3ZH

• 27: State code for Maharashtra
• AABCI6363G: PAN of the business
• 3: Entity number (3rd registration under this PAN)
• Z: Default alphabet
• H: Check digit

State Codes in GST Numbers

The first two digits of a GST number represent the state code. Here are some common state codes:

• 01 - Jammu & Kashmir
• 02 - Himachal Pradesh
• 03 - Punjab
• 07 - Delhi
• 09 - Uttar Pradesh
• 19 - West Bengal
• 27 - Maharashtra
• 29 - Karnataka
• 32 - Kerala
• 33 - Tamil Nadu

Importance of GST Number Verification

Verifying a GST number is crucial for businesses to:

• Ensure the legitimacy of business partners
• Comply with GST regulations
• Avoid fraudulent transactions
• Claim input tax credit correctly

How to Verify a GST Number

You can verify a GST number using our GST Number Check tool. Simply enter the GST number in the search box and get complete details including registration status, business information, and return filing status.