To verify a business’s GSTIN in India, use the official GST Portal’s public Search Taxpayer tool. Search by GSTIN/UIN, then compare the returned business name, address and registration status with the invoice or vendor details you received. The basic lookup does not require a portal login.
How to check a GSTIN on the official GST Portal
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Go to the official GST Portal and open Search Taxpayer.
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Select Search by GSTIN/UIN, enter the number you want to check, complete the displayed CAPTCHA and select Search. The GST Portal’s Search Taxpayer manual describes this as a pre-login service.
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Review the returned profile. Depending on the record, the portal can show the GSTIN/UIN, legal name, trade name, effective registration date, business constitution, principal place of business, cancellation date if applicable, and return-filing details.
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Compare the legal or trade name and place-of-business details against the invoice, vendor onboarding record or other information supplied to you. Check the displayed status and any cancellation information; the portal may also show an auto-suspended status and its effective date.
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If you need filing information, use the filing table and select a financial year. The manual also describes a return-filing-frequency view. These are portal-reported details, not a complete audit of a supplier.
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How to assess the result
A search result confirms what the GST Portal displays for that GSTIN/UIN; it does not by itself establish that a business is legitimate in every respect or that a particular transaction is safe. Use the profile to check the specific details relevant to your transaction:
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Record returned: Confirm the portal found a record for the number provided.
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Business identity: Check whether the legal or trade name corresponds to the business named on the invoice or vendor record.
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Place of business: Compare the portal’s address with the address provided to you, allowing for a genuine explanation if records differ.
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Registration status: Review the status, effective date and cancellation information shown. A mismatch or unexpected status is a reason to pause and seek clarification.
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Filing details: Use available filing information only to answer the particular diligence question at hand; it is not a full assessment of the business’s tax or financial position.
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If the number produces no record or the profile conflicts with the invoice or vendor information, pause the transaction or vendor setup and ask the business to verify or correct the GSTIN details. GSTN’s Welcome Kit identifies checking handwritten invoices, avoiding vendors using fake GSTINs and correcting GSTIN reporting errors among the uses of the utility.
What public and logged-in searches show
The public lookup can show identity, registration, business constitution and place-of-business fields, cancellation information when applicable, and return-filing details. The GST Portal manual distinguishes these from additional information available to logged-in users, which can include proprietor, director or promoter names, e-way bill history, annual aggregate turnover and tax-payment information. Do not assume those additional fields are available in the anonymous search.
Search GST registrations associated with a PAN
The GST Portal manual also documents Search by PAN under Search Taxpayer. It can show GST registrations available on the searched PAN. GSTN’s functionality document discusses the feature in connection with a person identifying and reporting registrations they believe were created through misuse of their PAN. It is not a substitute for the GSTIN lookup when checking a supplier, nor a basis for seeking private taxpayer information about someone else.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How a business can download its GST registration certificate
Checking another business’s GSTIN is different from retrieving your own certificate. To download a certificate for your business:
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Sign in to the GST Portal.
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Open Services > User Services > View/Download Certificates.
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Choose the issued certificate you need and download it as a PDF. The portal’s certificate manual says certificates are listed in descending chronological order; if registration details have been amended, an updated or amended certificate is also displayed.
Can you use another GSTIN lookup service?
The official GST Portal is the primary place to verify a registration. IRIS IRP’s GSTIN-details documentation describes a secondary lookup that can return fields such as trade name, legal name, address and PIN code. It says updates are reflected after they appear on the GST Portal. For a consequential check, use the portal record as the reference point.
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