Check a business on the official Indian GST Portal at gst.gov.in. Open Search Taxpayer, choose the GSTIN/UIN search, enter the identifier and the displayed CAPTCHA, then select Search. The public lookup does not require you to log in. Compare the returned GSTIN, legal name, trade name, registration date, status and address with the supplier, customer or invoice you are checking.
What GSTIN verification tells you
A GSTIN verification checks whether the identifier supplied by a business corresponds to a record on the Goods and Services Tax Portal. The portal manual describes the public feature this way: “The Search Taxpayer functionality allows you to view the profile of any other registered taxpayer at the GST Portal on entering the GSTIN/UIN.” You can read the full instructions in the GST Portal Search Taxpayer manual.
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This is useful when you are about to pay a vendor, onboard a customer, validate a handwritten invoice, or investigate whether a GSTIN has been copied or invented. A matching portal record supports the authenticity of the identifier as displayed by the portal. It does not, by itself, prove that a particular invoice is genuine, that goods were supplied, that tax was correctly charged, or that the counterparty is commercially trustworthy.
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What you need before searching
- The GSTIN or UIN exactly as supplied. Avoid adding spaces or changing characters.
- A current internet connection and a browser that can display the GST Portal.
- Access to the CAPTCHA shown on the search page.
- The invoice, quotation, purchase order, vendor-master record or other document you want to compare with the portal result.
You do not need a GST Portal login for the public GSTIN/UIN search described in the official manual. If you need the additional information available after authentication, use your own authorized portal account rather than asking a counterparty to share credentials.
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How to check a GSTIN on the official portal
- Go to the official portal. Enter https://gst.gov.in in your browser. Use the government portal as the authoritative first check; a third-party directory or software screen may be stale or incomplete.
- Open Search Taxpayer. From the home page, select the Search Taxpayer option.
- Choose the identifier search. Select the option to search by GSTIN/UIN. The public search is intended to show the profile associated with the number you enter.
- Enter the GSTIN or UIN. Type the identifier exactly as shown on the document. Check visually for transposed characters before submitting.
- Enter the CAPTCHA. Reproduce the displayed CAPTCHA in the required field. If the image is difficult to read, use the page’s refresh control to request another one rather than guessing repeatedly.
- Select Search. Wait for the portal to return the taxpayer profile. Save or print the result according to your organization’s record-retention policy if the check supports a material payment or onboarding decision.
- Compare the returned fields. Check the identifier, names, date, status and place of business against the source document. A search result is the beginning of verification, not a substitute for reviewing the underlying transaction.
Which fields to check in the result
The exact fields shown can depend on the portal’s current display and the taxpayer record. The official manual and GSTN’s Welcome Kit identify the following information as relevant to taxpayer searches.
| Portal field | What to compare | How to use it |
|---|---|---|
| GSTIN/UIN | The number printed on the invoice, quotation or vendor record | Confirm every character. A name match with a different identifier is not a match. |
| Legal name | The registered legal entity or person’s name | Compare it with the contracting party, purchase order and tax invoice details. |
| Trade name | The commercial name used by the business | Compare it with the storefront, brand or invoice trading name, while remembering that it may differ from the legal name. |
| Effective registration date | The date on which the registration became effective | Check that the date does not fall after the invoice date or the period in which the supplier claims to have been registered. |
| Constitution of business | The recorded form of the taxpayer’s business | Use it as an additional identity check against the contracting party and its documents. |
| Principal place of business | The address shown in the registration profile | Compare the state and address with the supplier’s records; an address difference deserves clarification. |
| GSTIN/UIN status | The status displayed by the portal | Do not call a record active if the portal shows suspended, cancelled or another non-active status. |
| Cancellation date, if shown | The date of cancellation | Compare it with the date of the transaction you are reviewing. |
| Jurisdiction and taxpayer type | The classifications returned by the portal | Use them as corroborating information, not as a replacement for checking the identifier and names. |
| Nature of business activities | The activities recorded for the taxpayer | Consider whether they are consistent with the goods or services being offered. |
| Return-filing details | The return-filing table or details displayed | Read the dates and periods shown; do not infer filing information that the page does not display. |
GSTN lists jurisdiction, taxpayer type, status, nature of business activities and a return-filing table among the information that may be searchable. The manual also identifies the registration date, constitution, principal place of business and cancellation date where applicable. Fields can change as the portal is updated, so treat the page you actually receive as the record for that check.
Legal name versus trade name
A name discrepancy is one of the most common reasons a legitimate GSTIN appears suspicious. The legal name is entered as it appears in PAN records, while a taxpayer may operate publicly under a separate trade name. The registration guidance explains the distinction in the GST registration manual.
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The more serious warning is a mismatch between the portal’s GSTIN and the number on the invoice, or a result whose legal identity and address have no plausible connection to the party you are paying. Do not “fix” the discrepancy by editing your records to force a match.
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How to interpret active, suspended and cancelled records
Active or otherwise current status
If the portal presents a current registration status and the identity fields match, the GSTIN corresponds to a registration record at the time you checked it. Record the search date and the displayed details for an important transaction because portal information and taxpayer status can change.
Suspended or auto-suspended status
The manual notes that an auto-suspended status and its effective date can be displayed. A suspended record should not be described simply as active. Pause the onboarding or payment decision long enough to establish what the status means for the specific transaction, tax period and counterparty. A public lookup alone does not tell you every legal consequence of suspension.
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If a cancellation date is shown, compare it with the invoice date and supply period. Do not assume that a cancellation displayed today answers every question about an earlier transaction. For a disputed tax position, credit decision or legal consequence, obtain current official or professional guidance rather than drawing a conclusion from the search screen alone.
Public search versus information after login
The public search is designed for a basic identity and registration check. The manual distinguishes it from the information available after logging in. Depending on the account, permissions and the portal’s current functionality, an authenticated view may include:
- Proprietor, director or promoter names.
- E-way bill history.
- Annual aggregate turnover.
- Tax-payment information.
GSTN’s earlier functionality compilation also described post-login information such as Aadhaar authentication or e-KYC verification and compliance information. Those historical descriptions do not establish that every one of those fields is currently displayed to every user. Do not promise a customer or supplier that a particular post-login field will be available until you can see it in the current account interface. The relevant compilation is available as a PDF from GSTN.
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Use only information you are authorized to access and handle personal, financial and compliance data securely. A public GSTIN check normally answers an identity question; it is not permission to circulate a person’s additional registration data.
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For an invoice or handwritten bill, work through the fields in a fixed order so that a plausible-looking business name does not distract you from a wrong identifier.
- Copy the GSTIN from the invoice. Search that exact number rather than searching a number found on an unrelated website or old document.
- Match the returned GSTIN. Confirm that the portal’s identifier is the one printed on the invoice.
- Match identity fields. Compare the legal name and trade name with the seller name, letterhead, bank account documentation and purchase order.
- Check timing. Compare the effective registration date and any cancellation date with the invoice date and supply period.
- Check location and activity. Compare the principal place of business and nature of business activities with the transaction. A mismatch may be explainable, but it should not be ignored.
- Review status. Record whether the portal shows a current, suspended, auto-suspended or cancelled status.
- Check the transaction separately. Confirm that the goods or services were actually supplied, the quantities and tax calculations are correct, and the payment instructions belong to the intended counterparty. GSTIN verification cannot prove those facts.
Use the result when onboarding a supplier or customer
For a new business relationship, make the GSTIN check one control in your onboarding process. Ask the counterparty for the GST registration details and supporting business documents, then independently search the number on the official portal. Keep the search date, the result and any explanation of discrepancies with the vendor or customer file.
- Require a fresh check when the legal entity, address, bank details or invoice pattern changes.
- Recheck before a large or unusual payment if the earlier result is old.
- Escalate a different GSTIN, unexplained legal-name mismatch or non-current status to the person responsible for tax and vendor approval.
- Do not rely on a screenshot without confirming the number yourself; screenshots can be altered or become outdated.
What a successful lookup does not prove
A returned profile establishes only that the portal has information associated with the GSTIN/UIN you entered. It does not independently establish:
- That the person contacting you controls the registered business.
- That the invoice was issued by that business.
- That the goods or services were delivered.
- That the tax rate, taxable value or tax amount on an invoice is correct.
- That the business is financially sound or safe to extend credit to.
- That the taxpayer has filed every return or paid every amount unless the relevant details are actually displayed and interpreted in context.
Those questions require document review, transaction evidence, commercial due diligence and, where the stakes justify it, advice from a qualified tax professional.
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Troubleshooting common search problems
The CAPTCHA is rejected
Refresh the CAPTCHA and enter the newly displayed characters carefully. Check that you have not copied an extra space or confused similar characters. If repeated attempts fail, stop submitting guesses and try again later using a current browser session.
No profile appears for the number
Recheck every character against the original document and make sure you selected the GSTIN/UIN search rather than another taxpayer-search option. A failed search is not proof that the business is fraudulent; it may reflect an incorrectly transcribed identifier, a temporary portal problem or a record that needs clarification. Ask the counterparty to confirm the number in writing and repeat the official search.
The portal result and invoice names differ
First determine whether one is a legal name and the other a trade name. Then compare the address, constitution, GSTIN and dates. Request supporting documentation if the relationship between the names remains unclear.
The result shows suspension or cancellation
Record the status and effective date exactly as displayed. Do not relabel it as active, and do not infer the tax treatment of a particular transaction from the public result alone. Refer the matter to the person handling tax or obtain current professional guidance.
The portal is temporarily unavailable
Do not replace the official result with an unverified third-party claim. Preserve the document you are checking, note the attempted search time, and retry through the official portal. If a payment or onboarding decision is urgent, escalate the exception under your organization’s approval policy.
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How to document a verification
A short verification record makes the check reproducible without overstating what it proves. Include:
- The GSTIN or UIN searched.
- The date and approximate time of the lookup.
- The legal name and trade name displayed.
- The effective registration date, status, cancellation date if shown, constitution and principal place of business.
- The invoice, vendor or customer document against which you compared the result.
- Any discrepancy, explanation received and decision-maker who approved the next step.
For a high-value relationship, retain a portal printout or screenshot only in accordance with your privacy, security and record-retention rules. A saved image is evidence of what you saw on a particular date, not a permanent guarantee that the registration remains unchanged.
When to seek additional help
Use a tax professional or the relevant official channel when the issue concerns a disputed input-tax credit, a transaction around the effective registration or cancellation date, a suspended registration, suspected identity misuse, or a legal demand. The Search Taxpayer page is an identity and registration lookup; it is not a complete adjudication service.
Businesses that need recurring filing, accounting or compliance workflows may separately evaluate authorized GST service providers. GSTN’s Welcome Kit explains that GST Suvidha Provider services are paid and that taxpayers may choose a provider, but selecting such a service is separate from checking one GSTIN and should not be treated as an endorsement of any particular provider.
Practical decision rule
Proceed with ordinary verification only when the exact GSTIN returns a plausible profile and the identifier, names, dates, status and address align with the transaction. Stop and escalate when the number cannot be found, belongs to a different entity, shows a non-current status, or conflicts with the invoice in a way the counterparty cannot explain. Even a clean match should be combined with proof of the actual supply and review of the invoice before you claim a tax or payment outcome.
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