Law No. 89/2017 · Chapter II · Information on the beneficial owner

Law 89/2017, Article 4 Register of beneficial owners

Lei n.º 89/2017, artigo 4.º · Registo do beneficiário efetivo

Lei n.º 89/2017 and the annexed Regime Jurídico do RCBE · consolidated text checked 26 October 2026

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1. Commercial companies must keep an up-to-date register of the identification details:

1 - As sociedades comerciais devem manter um registo atualizado dos elementos de identificação:

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a) of the members, specifying their respective interests;

a) Dos sócios, com discriminação das respetivas participações sociais;

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b) of the natural persons who hold, even indirectly or through a third party, ownership of the interests in the company; and

b) Das pessoas singulares que detêm, ainda que de forma indireta ou através de terceiro, a propriedade das participações sociais; e

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c) of any person who, in any way, holds effective control of the company.

c) De quem, por qualquer forma, detenha o respetivo controlo efetivo.

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2. The information referred to in the preceding paragraph must be adequate, accurate and current, and must be communicated to the competent entities in accordance with the law.

2 - A informação referida no número anterior deve ser suficiente, exata e atual, bem como comunicada às entidades competentes nos termos da lei.

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3. For the purposes of paragraph 1, information on the tax representative of the persons mentioned therein, where there is one, must be collected.

3 - Para efeitos do disposto no n.º 1, deve ser recolhida a informação do representante fiscal das pessoas ali mencionadas, quando exista.

What we checked in this article

The three categories of persons in points (a) to (c), the adequate/accurate/current standard and the collection of tax-representative information are retained.

Need to file or update the RCBE declaration? Law 89/2017, Article 4 is where it starts.

We file initial RCBE declarations, updates and annual confirmations for Portuguese companies with foreign owners, and map the ownership chain so the beneficial owner is identified correctly. Fixed fee, done in English.

Unofficial English translation prepared by BCA Portugal for reference. Only the Portuguese text published in the Diário da República has legal force. Editorial notes are ours and are not part of the statute.

Applying the law

The RCBE declaration, filed correctly the first time

A missing or wrong declaration blocks dividend payments, public contracts and bank onboarding. Send us the ownership chart; we identify the beneficial owners, file the declaration and keep it current.

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