The official 5-digit code that identifies the economic activity of a company in Portugal, assigned per INE's CAE classification.

Where can I find my CAE?

In SICAE (sicae.pt), on the tax-office start-of-activity certificate and on the permanent commercial record. NACEBridge also lets you search by text.

What's the difference between CAE and NACE?

NACE is the shared European classification. CAE is the Portuguese variant: it shares the first 4 digits with NACE (class) and adds a national digit (subclass) for more detail.

The revision in force since 2025, aligned with NACE Rev. 2.1. It replaces CAE Rev. 3 and introduces important changes for digital and environmental activities.

CAE · PT

CAE — Portuguese Classification of Economic Activities

Look up the CAE code for any economic activity in Portugal, see what it means and convert it to European NACE or to the equivalent in other EU countries.

CAE (Classificação Portuguesa das Atividades Económicas) is Portugal's official nomenclature, maintained by INE, identifying each economic activity with a 5-digit code aligned with the European NACE.

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

The current version is CAE Rev. 4 (2025), aligned with NACE Rev. 2.1. All data comes from official sources.

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

FAQ

What is a CAE code?: The official 5-digit code that identifies the economic activity of a company in Portugal, assigned per INE's CAE classification.
Where can I find my CAE?: In SICAE (sicae.pt), on the tax-office start-of-activity certificate and on the permanent commercial record. NACEBridge also lets you search by text.
What's the difference between CAE and NACE?: NACE is the shared European classification. CAE is the Portuguese variant: it shares the first 4 digits with NACE (class) and adds a national digit (subclass) for more detail.
What is CAE Rev. 4?: The revision in force since 2025, aligned with NACE Rev. 2.1. It replaces CAE Rev. 3 and introduces important changes for digital and environmental activities.

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