Question 1

What is a Spanish NIE?

Accepted Answer

The NIE (Número de Identidad de Extranjero) is the Spanish identification number for foreign residents. It begins with a letter (X, Y, or Z), followed by 7 digits and a check letter, calculated using the same modulo-23 algorithm as the DNI.

Question 2

How is the NIE check letter calculated?

Accepted Answer

Replace the leading letter with a digit (X=0, Y=1, Z=2), giving an 8-digit number. Take that number modulo 23 and look up the result in the table TRWAGMYFPDXBNJZSQVHLCKE to get the final letter.

Question 3

Can I use a generated NIE for legal purposes?

Accepted Answer

No. A real NIE must be issued by the Spanish authorities (Policía Nacional or a Spanish consulate). Generated NIEs only pass format validation and are intended for testing software, not for any official use.

Spanish DNI/NIE Generator

Generator Settings

Validate DNI/NIE

ID Format

API Access

⚠️ Testing Only

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