Online PIS/PASEP Validator
Verify the validity of a PIS, PASEP, or NIT number using the official check digit algorithm. Free tool.
About this validator
This tool applies the official check-digit rule for PIS, PASEP, and NIT numbers, helping catch typing mistakes in forms and systems.
The check is mathematical and local. It does not access government databases or identify the owner of the number.
Best practices
- Use frontend validation to block submissions with incorrect 11-digit numbers.
- Allow masked input, but normalize the number before processing.
- For official workflows, pair structural validation with authorized registry checks.
Important notice
This tool validates only number structure. It does not confirm employment linkage, ownership, or registry status.