GSTIN Validator
Check a 15-character GST number for format and checksum errors before using it on an invoice.
- Free
- No signup
- Private: runs in your browser
- Works on mobile
These tools check the format of a number on your device. They cannot confirm that a document exists or who it belongs to.
GSTIN Validator tool
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Example
With the default values shown in the tool, the results look like this:
- Format
- Valid format and checksum
- State code
- 27
- Embedded PAN
- AAPFU0939F
- Entity number
- 1
How to use GSTIN Validator
- Enter your values in the fields above.
- The result updates instantly as you type or change an option.
- Copy the result or note it down. Nothing is saved on our servers.
Why use DocConvertPRO?
- Free to use with no signup or watermark.
- Everything runs in your browser. Your input is not uploaded.
- Works on phones, tablets and computers.
- Made for Indian users: rupees, lakh/crore formats and local use cases.
About this tool
A GSTIN is made of a 2-digit state code, the holder’s 10-character PAN, an entity number, the letter Z and a check character calculated from the other characters.
Everything is checked on your device. Nothing you type is uploaded or stored.
Frequently asked questions
Does it confirm the business is registered?
No. Verify registration on the GST portal.
What is the state code?
The first two digits identify the state, e.g. 27 is Maharashtra.
Why would the checksum fail?
Usually a typing mistake in one of the characters.