Last Updated: June 5, 2026 | Reviewed by: Parul Singh (GST Practitioner, 15+ years experience)
GST number search (GSTIN verification) is the process of checking if a GST number is valid and active. Every registered business in India has a unique 15-digit GST Identification Number (GSTIN). Use this guide to verify any GST number online for free.
🔍 Quick Verify: Go to gst.gov.in → Search → Search Taxpayer → Enter GSTIN to verify instantly.
GST Number Format — What Does Each Digit Mean?
A 15-digit GSTIN follows a specific structure:
| Position | Digit(s) | Meaning | Example |
|---|---|---|---|
| 1-2 | State Code | Indian state code (07 = Delhi) | 07 |
| 3-12 | PAN Number | 10-digit PAN of the taxpayer | AABCT1234K |
| 13 | Entity Code | Number of registrations in same state | 1 |
| 14 | Letter 'Z' | Default character | Z |
| 15 | Check Digit | Checksum for verification | 5 |
How to Search GST Number Online
1 Go to GST Portal
Visit www.gst.gov.in — the official GST portal.
2 Click Search → Search Taxpayer
Navigate to Services → Search Taxpayer → Search by GSTIN / GST Number.
3 Enter GSTIN Number
Type the 15-digit GST number you want to verify and solve the CAPTCHA.
4 View Details
You'll see: Business name, GST status (Active/Cancelled), registration date, business type, and authorized signatory.
GST State Codes — Complete List
| Code | State | Code | State |
|---|---|---|---|
| 01 | Jammu & Kashmir | 19 | West Bengal |
| 02 | Himachal Pradesh | 20 | Jharkhand |
| 03 | Punjab | 21 | Odisha |
| 04 | Chandigarh | 22 | Chattisgarh |
| 05 | Uttarakhand | 23 | Madhya Pradesh |
| 06 | Haryana | 24 | Gujarat |
| 07 | Delhi | 25 | Daman & Diu |
| 08 | Rajasthan | 26 | Dadra & Nagar Haveli |
| 09 | Uttar Pradesh | 27 | Maharashtra |
| 10 | Bihar | 28 | Andhra Pradesh |
| 11 | Sikkim | 29 | Karnataka |
| 12 | Arunachal Pradesh | 30 | Goa |
| 13 | Nagaland | 31 | Lakshadweep |
| 14 | Manipur | 32 | Kerala |
| 15 | Mizoram | 33 | Tamil Nadu |
| 16 | Tripura | 34 | Puducherry |
| 17 | Meghalaya | 35 | Telangana |
| 18 | Assam | 36-38 | New states/UT |
Frequently Asked Questions
❓ How to find my GST number?
Your GSTIN is on your GST registration certificate. Login to GST portal → Services → View Registration Certificate.
Your GSTIN is on your GST registration certificate. Login to GST portal → Services → View Registration Certificate.
❓ Can I search GST number by company name?
Yes! On the GST portal, use "Search by Taxpayer Name" under Services → Search Taxpayer.
Yes! On the GST portal, use "Search by Taxpayer Name" under Services → Search Taxpayer.
❓ How to check if a GST number is fake?
Enter the GSTIN on gst.gov.in. If no details appear or status shows "Cancelled", it may be invalid.
Enter the GSTIN on gst.gov.in. If no details appear or status shows "Cancelled", it may be invalid.
❓ Is GST number same as PAN?
No, but the GSTIN contains your PAN (digits 3-12). Each state registration gets a unique GSTIN but the PAN remains the same.
No, but the GSTIN contains your PAN (digits 3-12). Each state registration gets a unique GSTIN but the PAN remains the same.
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Need Help with GST Return Filing?
Parul Singh — GST Practitioner & Tax Consultant, 15+ years, 1,500+ businesses served
WhatsApp: +91-9540104776