GSTIN Checker
Paste a GST number to check that it is correctly formed, and to read the state and PAN it contains.
The number is checked in your browser. It is not sent to us or stored.
Result
Enter a GSTIN to check it.
Common questions
- What does this check?
- It checks how the number is built: fifteen characters, a valid state code, a PAN in the right pattern, and a last character that matches the rest. A single mistyped character almost always fails this check, which is why it is worth running before a number goes into a bid form.
- Does it confirm that the GST registration is active?
- No. A correctly formed number can still be cancelled, suspended or never issued. Only the GST portal can confirm that a registration exists and is active, so verify it there before relying on it.
- How is a GSTIN made up?
- The first two digits are the state code. The next ten characters are the PAN of the business. The thirteenth is the number of that PAN's registration within the state. The fourteenth is the letter Z by default. The fifteenth is a check character calculated from the first fourteen.
- Why does the GST number matter in a tender?
- Most tenders ask for the bidder's GST registration certificate, and the number is repeated in the bid forms and the price bid. A wrong digit there can lead to a query or a rejection at technical evaluation.
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