Verify the format and checksum of a GST Identification Number instantly.
A GSTIN is a 15-character code: the first 2 digits are the state code, the next 10 characters are the holder's PAN, the 13th character is the entity/registration number for that PAN in the state, the 14th is the letter Z by default, and the 15th is a checksum. The tool checks this format and recomputes the checksum using the GSTIN check-digit algorithm to confirm the number is well-formed. A valid format does not by itself prove the business is active, but an invalid one is definitely wrong.
For 27AAPFU0939F1ZV: 27 is the Maharashtra state code, AAPFU0939F is the PAN, 1 is the registration number, Z is the default letter, and V is the checksum digit that the tool verifies.
No. This tool only confirms the GSTIN is correctly formatted and the check digit is valid. To confirm the business is registered and active, verify the GSTIN on the official GST portal.
The first two digits identify the state or union territory of registration, for example 27 for Maharashtra, 07 for Delhi, 29 for Karnataka, and 33 for Tamil Nadu.
Yes, characters 3 to 12 of the GSTIN are the holder's 10-character PAN. This helps you cross-check a supplier's PAN and GSTIN match.
An incorrect GSTIN on a purchase invoice can block your input tax credit. Validating the format first, then checking status on the GST portal, protects your ITC claims.
A failed check usually means a typo or a fake number. Re-enter it carefully; if it still fails, ask the supplier for the correct GSTIN before accepting the invoice.
When adding a supplier, Commmerce checks the GSTIN format and stores it with the profile.
See Inventory Management
