Company Documents for Portugal: Articles, Powers of Attorney, Certificates

October 1, 2026 · The Editor, O Gravata Translations

A founder decides to open a Portuguese company or register a branch of an existing foreign one, and the list of what the Portuguese side needs looks manageable: the articles of association, proof that the parent company exists and is in good standing, a power of attorney for whoever will act locally, and identification for the people behind it. Then the file is handed over and comes back, because the articles were translated but the registry extract was not, or because the power of attorney was signed before anyone checked what it had to authorise, or because the corporate certificate was issued eight months earlier and the office receiving it wanted something more recent.

Corporate files fail differently from personal ones. A birth certificate is a single document with a single purpose. A company file is a set of documents that have to be consistent with each other, that come from a commercial registry in another country, and that frequently include an instrument — the power of attorney — drafted specifically for the Portuguese transaction rather than pulled from a drawer. Each of those features creates a place where the translation step can go wrong, and most of them are about sequence rather than about language.

The documents have to agree with each other

A Portuguese office looking at a foreign company file is checking whether the entity exists, who is authorised to bind it, and whether the person standing at the counter or signing the deed is that authorised person. That check runs across several documents at once.

If the company name appears in one form on the registry extract and in a slightly different form in the articles, or if a director named in the power of attorney does not appear in the certificate of incumbency, the reviewer has to resolve the discrepancy before anything moves. Translation is where these mismatches become visible, because the translator has to make a choice about every name, title and corporate form on the page. Corporate forms are a particular difficulty: an LLC, a GmbH, a Ltd and a BV are not equivalents of each other or of a Portuguese company type, and a translation that converts them into the nearest Portuguese label can misdescribe what the entity actually is. Leaving the original designation visible, with the translation explaining it, is generally safer than substituting a local term — but how a specific office prefers to see it is a question for that office.

Powers of attorney should be drafted before they are translated

A power of attorney is the document founders most often have to create from scratch, and it is the one most sensitive to sequence. Its content depends on what the Portuguese representative will actually be asked to do. If it is drafted in general terms abroad, signed, authenticated, translated and certified, and only then presented, there is a real possibility that the receiving office finds the powers insufficiently specific — and the whole chain has to be repeated, because an authenticated signature cannot be retrofitted onto amended text.

The practical consequence is that the scope of the power of attorney should be settled with whoever will use it in Portugal before the document is signed, not after. Translation is the last step in that chain, not the first.

Authentication is a separate question from language

Whether a foreign corporate document needs authenticating for use in Portugal, and in what form, has nothing to do with what language it is in. Where both countries concerned are party to the Hague Apostille Convention, authentication is generally done by apostille, issued by the designated authority in the country where the document was issued. A certificate from a foreign commercial registry is therefore apostilled in that country, not in Portugal.

Two things about this catch out company files specifically. First, a document drawn up by a private party, such as a power of attorney or a shareholder resolution, usually has to be notarised locally before any apostille can attach to it, because the apostille certifies a public official's signature. Second, the apostille itself is a document with text on it, and whether it also needs translating is a question for the office receiving the file. There is no universal answer, and inventing one is how a file gets returned.

Certificates age, and nobody can tell you in advance how fast

Registry extracts and good-standing certificates describe a company as it was on the day they were issued. Many institutions treat them as having a limited useful life for that reason, and they differ on how long. Some want a certificate issued within a short recent window; others are less concerned. The same applies to whether a printout of a digital registry extract is acceptable, or whether a paper original bearing a seal is expected.

This is exactly the kind of question with no general answer. The only reliable source is the office that will receive the document, asked before the certificate is ordered rather than after it has been apostilled and translated.

Who may certify the translation in Portugal

Under Article 38 of Lei 76-A/2006, a translation is certified in Portugal by a Portuguese lawyer, a Portuguese notary, a Portuguese consulate, or the Portuguese Chamber of Commerce. A translation certified abroad by a translator whose certification is not recognised for Portuguese purposes may be refused, regardless of its quality, and that refusal tends to surface at the worst moment — at a signing, with other parties waiting.

For a company file, there is also the matter of which documents need certified translation at all. The answer varies by transaction and by receiving office, and the safest approach is to ask for the list in writing rather than to assume that the articles alone are enough or that everything in the folder must be done.

Bottom line

Corporate document problems in Portugal are usually sequencing problems: the power of attorney signed before its scope was agreed, the certificate ordered before anyone asked how recent it had to be, the translation arranged before the apostille. Settle with the Portuguese office or counterparty exactly which documents it needs, in what form and how recently issued, and only then start the chain of authentication, translation and certification.

This article is general information, not legal advice. Requirements vary by institution and by case — confirm with the office that will receive your documents.

← All articles