Free Tool
GST Number Search & GSTIN Verification
Enter any GSTIN to instantly check the registered business name, GST status, type and address. Free, no login.
Free GST number search — check any GSTIN's registered business name, status and details.
KhataBuddy auto-fills a customer's name and address from their GSTIN while you create invoices.
Try freeHow to search & verify a GST number
- 1
Enter the GSTIN
Type or paste the 15-character GST number you want to check into the search box.
- 2
Click Verify GSTIN
The tool looks up the GSTIN against GST records in a second.
- 3
Review the details
See the registered business name, GST status (active or not), taxpayer type, constitution, registration date, PAN and address.
What is a GSTIN?
A GSTIN (Goods and Services Tax Identification Number) is the unique 15-character number assigned to every business registered under GST in India. It appears on every GST invoice and return, and identifies the business to the tax system.
Here's what each part of a GSTIN means:
- State code
- The state where the business is registered (e.g. 27 = Maharashtra).
- PAN
- The 10-character PAN of the business or person.
- Entity number
- How many registrations the business has under the same PAN in that state.
- Default letter
- Currently "Z" for all taxpayers by default.
- Check code
- A checksum digit used to detect typing errors.
New to GST? Learn what an HSN code is, CGST vs SGST vs IGST, or what a tax invoice must include.
Why verify a GSTIN?
Before you deal with a new supplier or customer, a quick GSTIN check protects your business:
- ✓Confirm they're genuine — the registered name and status tell you the business is real and active.
- ✓Protect your input tax credit — dealing with a valid, active GSTIN keeps your ITC safe.
- ✓Bill correctly — the state code in the GSTIN tells you whether to charge CGST/SGST or IGST.
- ✓Avoid fraud — spot fake or cancelled registrations before money changes hands.
Auto-fill customers from their GSTIN
In KhataBuddy, entering a customer's GSTIN fills in their name and address automatically — so your invoices are accurate in one tap. Try KhataBuddy free, or make a bill now with the GST Invoice Generator.
GST Number Search — FAQs
Common questions about verifying a GSTIN.
Switch to smarter GST billing today
Join 10,000+ Indian small businesses running invoices, inventory, GST, and payments on KhataBuddy — with built-in AI that handles the work, in the app, on the web, or over WhatsApp.
Free trial · No credit card required
