NIE Validator - Check if a Foreign ID Number is valid
Use our online NIE validator to check if a Foreign Identity Number is valid. Instant verification according to the official algorithm.
NIE Format
The correct format of a NIE consists of an initial letter (X, Y or Z), followed by 7 numbers and a final letter. The final letter is calculated using the same algorithm as the DNI, replacing the initial letter with a numerical value (X=0, Y=1, Z=2).
Validation Criteria
- Must start with X, Y or Z, followed by 7 numbers and a letter
- The final letter must correspond to the result of the official algorithm
- Must not contain special characters or spaces
Validation Uses
- Verify the technical validity of a NIE
- Test document validation systems for foreigners
- Development of applications with international identity verification
Important Notice: This validator only checks the technical validity of the NIE according to the official algorithm. It does not verify if the document actually exists or belongs to a specific person.