How to Check a GST Number Online (Free, 2026)

You can check any GST number online for free by entering the 15-character GSTIN on the official GST portal (gst.gov.in → Search Taxpayer), or instantly on HisaabScore, which also shows that company's payment reputation. A valid result returns the legal name, trade name, registration date, taxpayer type and active/cancelled status.

Why check a GST number?

Before you supply goods on credit, take an advance, or onboard a new buyer or vendor, a GST check confirms the business is real, registered, and active — and that the name matches who you're dealing with. It's the fastest first step in due diligence.

How to check a GSTIN, step by step

1. Get the 15-character GSTIN from the party's invoice, letterhead, or quotation.
2. Go to the GST portal's "Search Taxpayer by GSTIN" tool, or paste it into the search box on HisaabScore.
3. Read the result: legal name, trade name, state, registration date, and status.
4. Confirm the status is Active and the name matches the business you're transacting with.

What a GST check does NOT tell you

A GSTIN tells you a business exists — not whether it pays on time. That's the gap HisaabScore fills: alongside the GST details, you see whether other businesses have tagged them a Good payer, Bad payer, or Avoid. Check a company now.