The official 4–5 digit code that identifies the economic activity of a company or self-employed person in Spain, per INE's CNAE nomenclature.

Where does the CNAE code appear?

On the tax-office registration (modelo 036/037), the Social Security certificate and the deed of incorporation. It's also searchable in INE's database.

How do I find my CNAE as a self-employed worker?

It's the main activity declared in modelo 036/037. If you're unsure between several, pick the one that best describes your main revenue source and confirm with your advisor.

What's the difference between CNAE and IAE?

IAE is a local tax with its own list of headings. CNAE is statistical and European. There's usually a mapping between them, but they're not identical — use our IAE ↔ CNAE converter.

CNAE · ES

CNAE — Spanish National Classification of Economic Activities

Look up the CNAE code for any economic activity, understand what it means and see how it maps to the European NACE classification.

CNAE (Clasificación Nacional de Actividades Económicas) is Spain's official activity nomenclature, maintained by INE. Each activity carries a 4–5 digit code aligned with the European NACE.

With NACEBridge you can decode a CNAE code, see its division and section, and convert it to equivalents in other EU countries (French NAF, German WZ, Portuguese CAE…).

The current version is CNAE Rev. 2.1 (2025), harmonised with NACE Rev. 2.1. All data comes from official sources.

Decode CNAE →Map CNAE to another country →IAE ↔ CNAE converter →What is NACE? →

FAQ

What is a CNAE code?: The official 4–5 digit code that identifies the economic activity of a company or self-employed person in Spain, per INE's CNAE nomenclature.
Where does the CNAE code appear?: On the tax-office registration (modelo 036/037), the Social Security certificate and the deed of incorporation. It's also searchable in INE's database.
How do I find my CNAE as a self-employed worker?: It's the main activity declared in modelo 036/037. If you're unsure between several, pick the one that best describes your main revenue source and confirm with your advisor.
What's the difference between CNAE and IAE?: IAE is a local tax with its own list of headings. CNAE is statistical and European. There's usually a mapping between them, but they're not identical — use our IAE ↔ CNAE converter.

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