How to Check Gst Number

Introduction The Goods and Services Tax (GST) system has revolutionized taxation in many countries by streamlining the tax structure and creating a unified marketplace. A crucial element of this system is the GST Number, also known as the GSTIN (Goods and Services Tax Identification Number). This unique identifier is assigned to every registered taxpayer under GST and is essential for conducting b

Nov 17, 2025 - 11:09
Nov 17, 2025 - 11:09
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Introduction

The Goods and Services Tax (GST) system has revolutionized taxation in many countries by streamlining the tax structure and creating a unified marketplace. A crucial element of this system is the GST Number, also known as the GSTIN (Goods and Services Tax Identification Number). This unique identifier is assigned to every registered taxpayer under GST and is essential for conducting business legally and transparently.

Knowing how to check a GST Number is vital for businesses, suppliers, buyers, and regulatory authorities to verify the authenticity of a GSTIN. This verification helps prevent fraudulent activities, ensures compliance, and facilitates smooth transactions within the GST framework. Whether you are a business owner verifying your suppliers or an individual verifying a vendor’s GST credentials, understanding the process of checking a GST Number is indispensable.

This comprehensive tutorial will guide you through the process of checking a GST Number, highlight best practices, introduce useful tools and resources, provide real-world examples, and answer common questions to help you master GST Number verification confidently.

Step-by-Step Guide

Step 1: Understand the Format of a GST Number

Before verifying a GST Number, it is important to understand its structure. A typical GSTIN is a 15-digit alphanumeric code comprising:

  • First 2 digits: State code as per Indian Census 2011 (e.g., 27 for Maharashtra)
  • Next 10 digits: PAN (Permanent Account Number) of the taxpayer
  • 13th digit: Entity number of the same PAN holder in the state (1 by default)
  • 14th digit: Alphabet ‘Z’ by default
  • 15th digit: Checksum digit (alphanumeric)

Knowing this format helps in preliminary validation of the GSTIN before proceeding to official verification.

Step 2: Access the Official GST Portal

The most reliable way to check a GST Number is through the official government GST portal. Navigate to https://www.gst.gov.in/ which hosts the GST Search functionality.

Step 3: Navigate to the GSTIN Verification Page

On the homepage, locate the “Search Taxpayer” or “Search by GSTIN/UIN” option. This section allows you to enter the GST Number you want to verify.

Step 4: Enter the GST Number

Type the 15-digit GSTIN carefully into the input box. Ensure there are no spaces or typos to avoid errors during the search.

Step 5: Complete CAPTCHA Verification

To prevent automated searches, the portal will ask you to enter a CAPTCHA code. Enter the characters exactly as shown to proceed.

Step 6: Submit and View Details

After entering the GSTIN and CAPTCHA, click the “Search” or “Verify” button. The system will display the GSTIN details if the number is valid.

Step 7: Analyze the Verification Result

The verification result typically includes:

  • Legal Name of the Registered Entity
  • Trade Name
  • State and Jurisdiction
  • Registration Date
  • Type of Taxpayer (e.g., Regular, Composition)
  • Status (Active or Cancelled)

Match these details with the information provided by your vendor or business partner to confirm authenticity.

Step 8: Cross-Verify the PAN Number

The middle 10 digits of the GSTIN correspond to the PAN. Cross-check this PAN with the official PAN database or the GST portal to ensure it matches the registered entity.

Step 9: Check GST Return Filing Status (Optional)

For deeper verification, you can also check the GST return filing status of the GSTIN to ensure compliance. This can be done through the GST portal or third-party tools offering compliance reports.

Best Practices

Always Use Official or Trusted Sources

Only use the official GST government portal or well-known third-party platforms for GSTIN verification to avoid inaccurate or outdated information.

Verify Regularly

If you frequently deal with multiple suppliers or customers, make GSTIN verification a regular part of your due diligence process to avoid fraudulent transactions.

Maintain Records of Verification

Keep a documented trail of GSTIN verification for your business records. This can be useful during audits or dispute resolution.

Validate Against PAN

Since GSTIN incorporates the PAN, always validate the PAN separately if required to ensure complete authenticity of the taxpayer.

Be Aware of Common Fraud Patterns

GSTINs with incorrect state codes, invalid PAN sequences, or cancelled statuses often indicate fraudulent or inactive entities. Be vigilant about these red flags.

Use Automation for Bulk Verification

If your business deals with numerous GSTINs, consider using API-based verification tools to automate and streamline the process efficiently.

Tools and Resources

Official GST Portal

The https://www.gst.gov.in/ portal provides the primary GSTIN verification tool and updated information on GST rules and compliance.

Mobile Apps

Several government-endorsed mobile applications are available for GST verification on the go. These apps allow quick GSTIN checks with user-friendly interfaces.

Third-Party Websites

Websites such as ClearTax, GST Suvidha Provider portals, and other tax compliance platforms offer GSTIN verification along with additional analytics like filing status and tax liabilities.

API Integration

Businesses can integrate GSTIN verification APIs offered by authorized providers into their ERP or accounting software for real-time validation.

PAN Verification Portals

Since GSTIN is linked to PAN, you can use the Income Tax Department’s PAN verification portal to cross-check the PAN details associated with the GSTIN.

Real Examples

Example 1: Verifying a Supplier’s GST Number

Scenario: A retailer receives a GSTIN from a new supplier and wants to verify it before placing an order.

Process: The retailer visits the official GST portal, enters the 15-digit GSTIN, and completes CAPTCHA verification. The portal returns the supplier’s legal name, state jurisdiction, and registration status as “Active.” The retailer cross-checks the PAN linked to the GSTIN and confirms it matches the supplier’s PAN card. Satisfied with the authenticity, the retailer proceeds with the transaction.

Example 2: Identifying a Fake GSTIN

Scenario: An individual receives an invoice with a GSTIN that looks suspicious.

Process: The individual enters the GSTIN on the government portal. The system shows “No records found,” indicating the GSTIN is invalid or fake. Upon further investigation, the PAN embedded in the GSTIN does not match any registered taxpayer. The individual immediately reports this discrepancy and avoids fraudulent dealings.

Example 3: Bulk Verification for a Large Business

Scenario: A large manufacturing firm needs to verify hundreds of GSTINs of its vendors.

Process: The firm integrates a GSTIN verification API into their procurement software. This automation enables real-time validation of GSTINs during vendor onboarding, ensuring only compliant suppliers are registered in their system.

FAQs

What is a GST Number?

A GST Number or GSTIN is a unique 15-digit identification number assigned to taxpayers registered under the Goods and Services Tax system. It is used for tax filing, compliance, and verification purposes.

Why is it important to check a GST Number?

Checking a GST Number helps verify the authenticity of a business, prevents fraud, ensures compliance with tax laws, and facilitates legitimate business transactions.

Can anyone check a GST Number?

Yes, GST Number verification is publicly accessible through the official GST portal and other authorized platforms.

What if the GST Number is invalid?

If a GST Number is invalid, it means the number is not registered or has been cancelled. Transactions with such entities carry legal risks and should be avoided.

How often should GST Numbers be verified?

It is recommended to verify GST Numbers during initial business relationships and periodically thereafter, especially before major transactions.

Is GSTIN verification free?

Yes, verification through the official GST portal is free of cost.

Can I verify multiple GST Numbers at once?

The official GST portal supports single GSTIN searches. For bulk verification, businesses can use API services or third-party tools that support batch processing.

Conclusion

Understanding how to check a GST Number is an essential skill for businesses and individuals engaging in commercial activities under the GST framework. This process not only safeguards against fraudulent entities but also ensures compliance with tax regulations, fostering trust and transparency in the marketplace.

By following the step-by-step guide, adhering to best practices, and leveraging reliable tools and resources, you can confidently verify GST Numbers with ease and accuracy. Regular verification and maintaining proper records will further strengthen your business’s compliance posture and reduce risks associated with tax evasion and fraud.

Stay informed, vigilant, and proactive in GST Number verification to support ethical business practices and contribute to a robust tax ecosystem.