How to use TaxAdda's GST Number validator tool?
You can enter multiple GSTINs (one per row) & get the status of GSTIN number. In case of bulk GST numbers, you can download the template from tool itself & enter GSTIN in excel sheet first . Then you can upload that excel sheet to get status of bulk GST numbers.
How the status of validity of GST number is fetched?
The status of GST number is fetched through real-time format and checksum validation.
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Frequently asked questions
What is the GST Number Validator Tool?
This tool helps verify the authenticity of a GST (Goods and Services Tax) Identification Number by checking whether it's valid or invalid.
How does the tool work?
You simply enter a GST number into the tool, and it checks the number’s structure and validity against checksum digit or databases, providing the result instantly.
Why should I use bulk validation vs. manual checks?
Our tool automates what would otherwise be a slow, manual process. Hence Saves time & cost as it is free to use. It also reduces errors Eliminates typos and mismatches through real-time format and checksum validation & supports compliance by ensuring legitimate suppliers/vendors, avoiding fake or inactive GSTINs
What is a valid GST number format?
A valid GST number format consists of 15 alphanumeric characters, following a standardized format based on PAN, state code, and other identifiers.
What information does the tool provide?
It validates Format (Structure) of GSTIN & confirms correct 15‑digit format & checksum (avoids invalid entries) Tool will show whether the GST number is valid or invalid, so you can proceed confidently with your business transactions.
How is it useful for my business?
It detects bogus or inactive GSTINs, proactively protecting against tax credit fraud and building credibility with your suppliers and buyers through the use of valid GSTINs. This tool not only streamlines tax filings by ensuring accurate GSTIN data for smooth input tax credit claims and GST Return filing, but also is scalable and flexible, making it ideal for vendor onboarding, periodic checks, and bulk uploads, all without manual effort.
Can I validate multiple GST numbers at once?
Yes, user can validate up to 50 GSTINs from entering in the text box and up to 5000 by uploading an Excel or CSV file
Is this tool free to use?
Yes, it's completely free online tool, built to make your compliance easier and faster.
When should I validate GSTINs?
At onboarding: Check GSTINs before adding suppliers/customers to your CRM/orders Before GST return filing: Ensure no changes in status since onboarding Regular cycles: Monthly or quarterly revalidation helps catch status updates, suspensions, or cancellations
What if I want to validate a single GST number only?
Our tool also validates single GSTIN. We suggest you to use Search GSTIN Online if you want to check single GST Number.
Do I need an internet connection to use the tool?
Yes, an active internet connection is required since the tool may connect to online validation sources.
When will this tool show a GSTIN as invalid?
The tool will flag the status as Invalid if the format is incorrect.
What should I do if the GST number is invalid?
Double-check the number for typos. If it still shows as invalid, you may want to confirm with the business owner or check that specific invalid number on Search GSTIN Online
Who benefits most from this tool?
- Tax professionals & accountants: Perform large-scale checks effortlessly.
- Procurement teams: Onboard compliant suppliers only.
- Sales & CRM teams: Ensure customer GST data is accurate.
- Finance teams: Prep for audits, ensure ITC accuracy.
How often is the database or logic updated?
We ensure regular updates to align with the latest GST norms and validation standards. If there's a change in the rules, we adapt quickly.