Where to find my GST Number on the Internet in a step-by-step guide

You can find your GST number online in minutes on the official Goods and Services Tax Network portal using your PAN, business name or TRN. A GSTIN is a 15-digit alphanumeric identification number issued under India’s GST system, and you need it to verify registration status, file returns, issue compliant invoices and complete vendor or banking checks. If you have misplaced your GST details, search directly on the GST Portal at gst.gov.in without logging in.

How to locate your GST number on the internet

You can find your GST number online without logging in through the Search Taxpayer section of the GST Portal. This feature lets you search your GSTIN using PAN, business name or TRN and also helps you access company details by GST number.

Method 1: Search by PAN

This is the most reliable way to find your GSTIN when you know the business's PAN. It shows all GST registrations linked to that PAN across different states.

Steps:

1. Go to the Search Taxpayer page.
2. Click Search by PAN.
3. Enter your 10-digit PAN and captcha.
4. Click Search.

The portal will display all GSTINs linked to that PAN, along with the state and registration status (Active/Cancelled).

If you notice an unknown GSTIN linked to your PAN, report it through the GST grievance or helpdesk system rather than assuming it can always be flagged directly from the search screen.

Method 2: Search by Business Name (GST Number by Name / GST Number by Company Name) 

If you do not know the PAN but know the registered business name, you can search by name on the GST Portal.

Steps:

1. Go to the Search Taxpayer page.
2. Click Search by Name.
3. Enter at least ten characters of the legal name or trade name.
4. Select the state from the dropdown to narrow the results.
5. Click Search.

Because many businesses have similar names, selecting the correct state helps narrow the results. Each match displays the GSTIN, legal name and registration status.

Method 3: Look up by temporary reference number

When you apply for a new GST registration, a temporary GST number is issued before the registration is finalised. It is used to track the application and, once approved, view the GSTIN.

Steps:

1. Go to Services > Registration > New Registration.
2. Select the TRN option.
3. Enter the TRN and the OTP sent to your registered mobile number or email address.

The dashboard shows the application status and the GSTIN once registration has been approved.

Where else can you find your GSTIN?

If you do not want to search the GST Portal, your GSTIN can also be found in places you may already have access to.

• GST registration certificate (Form GST REG-06): Available on the GST Portal under Services > User Services > View/Download Certificate after logging in. The certificate is issued as a digitally signed PDF. No paper copy is provided.
• Past GST returns: Your GSTIN appears in the header of returns such as GSTR-1, GSTR-3B and GSTR-9.
• GST-compliant invoices: Tax invoices issued or received by your business must include the GSTIN in the header.
• Bank or government correspondence: Letters from the GST department, registration communications and official notices sent to your business usually mention your GSTIN.

Why is your GST number not showing up in the search?

If your GST number does not appear in the search results, or the portal shows an unexpected status, one of these common reasons may apply:

• Registration cancelled or suspended: The GSTIN exists but is no longer active. The portal will display the status along with the GSTIN. If you want to close a GST number, you must apply for cancellation through the GST Portal under Services > Registration > Application for Cancellation.
• PAN typed incorrectly: Even one incorrect letter or digit in the PAN can return no results. Double-check every character before searching again.
• Mismatch in business name: The portal searches by the legal name registered with the GST authorities, not the trade name or brand name. Enter the legal entity name exactly as registered.
• Application awaiting approval: If the registration application has not yet been approved, no GSTIN will appear. Use the TRN method to check the application status instead.
• Migration errors: Some businesses migrated from the pre-GST regime. If the migration was incomplete, the GSTIN may not appear in a standard search. In such cases, contact the GST helpdesk at 1800-103-4786.

How can you store your GST details for easy access?

Losing access to your GSTIN during a transaction can cause unnecessary delays. A few simple steps can help you keep it accessible when you need it.

• Save your GST registration certificate (Form GST REG-06): Download it from the GST Portal, keep a copy in your accounts folder and save it in your email drafts for quick access.
• Set up your invoicing system: Configure it to pre-populate your GSTIN on all invoices so it remains visible at all times.
• Add your GSTIN to business shopping accounts: Add your GST number in account settings on platforms such as Amazon Business to get GST-compliant invoices and claim input tax credit on purchases.
• Save it in your phone’s secure notes: This gives you offline access whenever you need it.
• Keep a record of state-wise GSTINs: If your business operates in more than one state, maintain a list of all GSTINs with their corresponding state codes to avoid using the wrong GSTIN on an invoice.
• Use an accounting system: For businesses handling multiple transactions, storing GSTIN details in accounting software and auto-filling documents saves time and reduces filing errors.

Conclusion

An incorrect or missing GSTIN does not just affect one invoice; it can delay your buyer’s input tax credit, create mismatches in GSTR-2B and trigger unnecessary rectification requests during compliance. What matters most is ensuring your GSTIN is correctly retrieved and consistently used across all business documents from the very beginning.

Maintaining accuracy becomes far easier when your GST details are centrally stored and automatically applied across invoices, returns and filings. TallyPrime helps achieve this by storing all GSTINs in the company master and auto-populating them into invoices, e-way bills and returns, reducing manual errors and ensuring seamless, up-to-date GST compliance.