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Certified Translation

How to Get a Certified Translation in Portugal: A Complete Guide

Apr 15, 20265 min read

How to Get a Certified Translation in Portugal: A Complete Guide

If your company operates across borders, you will likely need certified translations of official documents at some point. Portugal has a specific framework for certified translation that differs from other countries, and understanding the process can save you time, money, and compliance headaches. This guide explains how certified translation works in Portugal and how to get it done efficiently, even if you are based abroad.

What Is a Certified Translation in Portugal?

In many countries, certified translation requires a notary stamp or a sworn translator appointed by a court. Portugal takes a different approach. Here, certified translation is a quality-driven process governed by international standards, most notably ISO 17100, which defines requirements for translation services including the qualifications of translators, the revision process, and quality assurance procedures.

A certified translation in Portugal is produced by a qualified linguist with proven translation experience in the relevant subject matter. The translation is accompanied by a certificate of accuracy, confirming that the translated text faithfully represents the original document. When performed by an ISO 17100-certified provider, this certificate carries significant weight with Portuguese and international authorities.

Key Characteristics of Portuguese Certified Translation

  • Standards-based: ISO 17100 ensures that every step, from translator selection to final delivery, meets internationally recognised quality criteria.
  • Specialist linguists: Translators are native speakers with subject-matter expertise, not generalists.
  • Quality control: Every certified translation undergoes a structured review before delivery.
  • Certificate of accuracy: A formal declaration accompanies the translation, confirming its fidelity to the source document.

When Do You Need a Certified Translation in Portugal?

Certified translations are required in a wide range of business and legal scenarios. The most common situations include:

  • Corporate registration: Setting up a company in Portugal requires translated articles of association, shareholder agreements, and powers of attorney.
  • Legal proceedings: Courts and arbitration tribunals require certified translations of contracts, evidence, and court orders from foreign jurisdictions.
  • Immigration and residency: Visa applications, Golden Visa programmes, and D7 residency permits all require translated personal documents.
  • Academic recognition: Universities and credential recognition bodies require certified translations of diplomas, transcripts, and professional qualifications.
  • Business contracts: International agreements with Portuguese counterparts often need certified translation for legal enforceability.
  • Public registries: Land registry, commercial registry, and civil registry offices require documents in Portuguese.

The Certified Translation Process: Step by Step

Working with a professional certified translations provider in Portugal typically follows a clear, streamlined process:

1. Submit Your Documents

Send your documents digitally (scanned originals or high-quality photographs). Most providers accept PDF, JPEG, and Word formats. There is no need to send physical copies for the initial quote.

2. Receive a Quote

A professional translation company will analyse your documents and return a detailed quote. At M21Global, quotes are delivered within 3 business hours, including pricing, turnaround time, and any specific requirements for your target jurisdiction.

3. Translation by a Specialist Linguist

Your documents are assigned to a linguist with proven experience in the relevant field, whether legal, financial, technical, or medical. This specialist knowledge ensures accurate terminology and compliance with local conventions.

4. Quality Control

The completed translation goes through a structured quality control process, as required by ISO 17100. This includes verification of accuracy, consistency, and formatting.

5. Certified Delivery

You receive the final translation with a certificate of accuracy. Delivery can be digital for most purposes, with physical copies sent by courier when required by the receiving authority.

Apostille and the Hague Convention

Portugal is a signatory to the Hague Convention of 1961, which means Portuguese public documents can be authenticated with an Apostille for use in any of the other 120+ member countries. This simplified legalisation process replaces the older, more complex chain of consular authentication.

For certified translations, the Apostille confirms the authenticity of the certification. If your translated documents need to be used outside Portugal, your translation provider can advise on whether an Apostille is required and guide you through the process.

For countries that are not party to the Hague Convention, a full consular legalisation process is required. This involves additional steps through the Portuguese Ministry of Foreign Affairs and the relevant embassy or consulate.

European Portuguese vs Brazilian Portuguese: Why It Matters

This distinction is critical and frequently overlooked. European Portuguese and Brazilian Portuguese differ in vocabulary, grammar, spelling, and formal register. For any document intended for use in Portugal, the European Union, or EU institutions, European Portuguese is the required variant.

Using Brazilian Portuguese for EU submissions, Portuguese court filings, or corporate registrations in Portugal can lead to delays or rejection. A Portugal-based translation company with native European Portuguese linguists ensures your documents meet the correct linguistic standard from the start.

Conversely, if your documents are destined for Brazil, you need a linguist specialising in Brazilian Portuguese. A reputable provider will match the correct variant to your specific needs.

Working Remotely with a Lisbon-Based Translation Company

You do not need to be in Portugal to get a certified translation. The entire process can be handled remotely. A Lisbon-based provider like M21Global offers translation services in Lisbon that serve clients worldwide, with digital submission, communication, and delivery as standard.

Portugal's GMT/GMT+1 timezone is a practical advantage, bridging European and American business hours. This means responsive communication regardless of where your company is based.

Why Choose an ISO 17100-Certified Provider?

ISO 17100 certification, independently audited by bodies such as Bureau Veritas, provides a verifiable guarantee of translation quality. It means the provider has documented processes for translator qualification, project management, quality assurance, and continuous improvement.

For legal translation and certified documents, this level of assurance can be the difference between a smooth submission and a costly rejection.

Get Your Certified Translation Started

Whether you need a single birth certificate translated or a full set of corporate documents for a Portugal expansion, M21Global delivers certified translations backed by more than two decades of experience and ISO 17100 certification by Bureau Veritas.

Request your free quote today. You will receive a detailed proposal within 3 business hours, with no obligation. Get a quote for certified translations.

Frequently Asked Questions

No. Unlike some countries, Portugal relies on ISO 17100-certified translation processes rather than notary stamps. A certified translation includes a certificate of accuracy issued by the translation provider, confirming fidelity to the original document.
Turnaround depends on the document length and complexity. You can expect a detailed quote within 3 business hours of submitting your documents. Simple documents such as birth certificates are typically completed within 1 to 3 business days.
No. Portuguese authorities and EU institutions require European Portuguese. Brazilian Portuguese differs in vocabulary, grammar, and spelling, and using it for official submissions in Portugal may result in delays or rejection.
If the translated document will be used in a country that is party to the Hague Convention, an Apostille may be required to authenticate the certification. Your translation provider can advise on whether this applies to your specific situation.

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