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Frequently asked questions

What to know before commissioning a sworn translation.

What is a sworn translator?

A translator authorised to certify that their translation is faithful to the original. They sign and stamp the translation, which then carries legal validity before the Spanish administration. This is not the same as an ordinary professional translator: immigration, nationality and civil registry procedures usually require a sworn translation specifically.

Who appoints sworn translators in Spain?

The Ministry of Foreign Affairs (MAEC), through the Oficina de Interpretación de Lenguas, the State body responsible for translation and interpreting. Only people on its official list may sign sworn translations.

What does a sworn translation cost?

There is no single rate: each translator sets their own fees, and the price varies with the language, the length of the document and how urgently you need it. Get two or three quotes before committing, and check whether the price includes extra copies and posting the paper original.

Do I also need the Hague apostille?

They are different things. The apostille legalises the original foreign document in the country that issued it; the sworn translation renders that document into Spanish. If the Spanish body asks for both, get the original apostilled first and translated afterwards, so the apostille appears in the translation too. Always confirm exactly what the office handling your file requires.

Is the translation valid throughout Spain?

A sworn translation signed and stamped by a MAEC-appointed translator is equally valid in any autonomous community. What does vary between offices is how it must be submitted: paper original, certified copy or electronic filing.

How do I check a translator is still appointed?

Check the MAEC's official search tool before commissioning work. This directory helps you find and contact translators by language and province, but the Ministry's list is the only authoritative source on who is currently appointed.

Where does this directory’s data come from?

From the MAEC's official search tool for sworn translators and interpreters, from which we pulled every language on 9 October 2026. Appointments and removals after that date do not appear until the next refresh, so confirm on the official search before commissioning work.