Instant GSTIN Company & Taxpayer Lookup

GSTIN Company Lookup & Validator

Enter any 15-digit GSTIN to instantly pull company legal name, trade name, PAN, state jurisdiction, and registered address.

Enter 15-Digit GSTIN Number

Try sample GSTIN:

Reading a GSTIN, character by character

Take an illustrative GSTIN such as 08ABCDE1234F1Z5:

Characters	Example	Meaning
1–2	08	State code: 08 is Rajasthan
3–12	ABCDE1234F	PAN of the business or proprietor
13	1	Registration number for this PAN in this state (1 for the first, 2 for the second, and so on)
14	Z	Fixed as Z for regular registrations
15	5	Check character calculated from the first 14

The check character is why a single mistyped digit is caught immediately: change any one character and the checksum no longer matches.

Common GST state codes

01	Jammu & Kashmir	23	Madhya Pradesh
03	Punjab	24	Gujarat
06	Haryana	27	Maharashtra
07	Delhi	29	Karnataka
08	Rajasthan	32	Kerala
09	Uttar Pradesh	33	Tamil Nadu
10	Bihar	36	Telangana
19	West Bengal	37	Andhra Pradesh

Why check a GSTIN before you bill or pay

Selling: if the buyer’s GSTIN on your B2B invoice is wrong, the invoice lands against the wrong taxpayer in GSTR-1 and your buyer cannot see it in their GSTR-2B, so they cannot claim input tax credit. You then have to amend the invoice.
Buying: checking a supplier’s GSTIN before paying helps catch fake or cancelled registrations, where the tax you pay may never reach the government and your credit can be reversed.
Place of supply: the first two digits tell you the buyer’s state, which decides whether you charge CGST + SGST or IGST.

Format check versus registration status

A GSTIN can have a perfect format and still be cancelled or suspended. For large payments or new suppliers, also confirm the current status on the official GST portal using “Search Taxpayer” before relying on it for input tax credit.

Frequently asked questions

How is a 15-digit GSTIN structured in India?

A GSTIN is 15 characters long: digits 1-2 represent the 2-digit State Code, characters 3-12 represent the taxpayer PAN, digit 13 represents the entity registration number for the same PAN in the state, character 14 is default "Z", and digit 15 is an alphanumeric Luhn mod 36 checksum.

What does the 15th checksum character in a GSTIN do?

The 15th character uses a weighted Luhn mod 36 algorithm to detect typographical errors, transposed digits, or forged GST numbers instantly.

Can I extract the business PAN from a GSTIN?

Yes. Characters 3 through 12 of any valid GSTIN are the exact 10-character PAN of the proprietor, firm, or company.

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