GSTIN Validator — Verify GST Number
Instantly validate any GSTIN format and decode state, PAN, entity type, and registration details. Free, no login required.
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0/15 characters
Enter a 15-digit GSTIN and click Validate
Format: 2 digits + 10 char PAN + 1 entity + 1 seq + 1 check
GSTIN Structure Explained
27 AABCT1332L 1 Z X
27
State Code
Maharashtra
AABCT1332L
PAN (10 chars)
Business PAN
1
Entity Type
Individual/Proprietor
Z
Reg. Sequence
Registration no.
X
Check Digit
Validation digit
Common State Codes
Frequently Asked Questions
What is a GSTIN?
GSTIN (Goods and Services Tax Identification Number) is a unique 15-digit alphanumeric code assigned to every GST-registered business in India. It is mandatory to mention GSTIN on all GST invoices.
What is the format of a GSTIN?
A GSTIN is 15 characters: first 2 digits are the state code, next 10 characters are the PAN of the business, character 13 indicates the entity type, character 14 is a registration sequence number, and character 15 is a check digit.
How do I verify if a GSTIN is active?
This tool validates the GSTIN format and decodes its structure. To verify if a GSTIN is currently active and registered, visit the official GST portal at services.gst.gov.in and use the 'Search Taxpayer' feature.
What does the state code in GSTIN mean?
The first two digits of a GSTIN represent the state code. For example, 27 = Maharashtra, 07 = Delhi, 29 = Karnataka, 33 = Tamil Nadu. This tells you which state the business is registered in.
Why should I verify a supplier's GSTIN before raising a purchase voucher?
Verifying a supplier's GSTIN ensures you are claiming ITC (Input Tax Credit) from a valid, registered taxpayer. If a supplier's GSTIN is fake or inactive, your ITC claim can be rejected and you may receive a GST notice.
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