Apostille vs. Sworn Translation: Different Functions
When submitting foreign documents to Spanish government agencies for procedures like residency, citizenship, family reunification, or study permits, the Hague Apostille (Apostilla de la Haya) and sworn translation (Traducción Jurada) are two of the most common requirements. Although both serve to give foreign documents legal effect in Spain, their functions and nature are completely different. Confusing the two can lead to your application being rejected and cause unnecessary delays.
What is a Hague Apostille?
The Apostille is an internationally recognized form of document certification. Its core function is to verify the authenticity of the signature on a public document, the capacity in which the person signing the document has acted, and the identity of the seal or stamp it bears. In short, it authenticates the origin of the document, confirming it is a legal and valid official document, but it does not certify the accuracy of the content itself.
This certification applies to documents exchanged between member countries of the Hague Convention. Documents that typically require an Apostille include:
- Birth certificates
- Marriage certificates
- Criminal record certificates
- Academic transcripts and diplomas
- Court orders and other judicial documents
What is a Sworn Translation (Traducción Jurada)?
A sworn translation, known as Traducción Jurada, is the translation of a foreign document into Spanish by a sworn translator (Traductor Jurado) authorized by the Spanish Ministry of Foreign Affairs. The translator’s signature and seal give the translation the same legal validity as the original document. Its purpose is to ensure that Spanish officials, judges, or relevant authorities can accurately understand the content of the document.
For example, a criminal record certificate from China, even after being apostilled to prove its authenticity, is still written in Chinese, which immigration officials in Spain cannot read. In this case, a sworn translation is required to accurately present the content in Spanish.
Do You Need Both an Apostille and a Translation?

Whether you still need a sworn translation after getting an Apostille ultimately depends on the specific requirements of the Spanish institution receiving the document.
In practice, some documents issued and apostilled by notary offices in the home country may already include a Spanish translation. Some less strict local Spanish agencies might accept these. However, to avoid risks, it is crucial to understand the standard official requirements.
In most cases, especially for important applications like immigration or citizenship, Spanish government departments will require the “double procedure.” Using the typical requirements for a criminal record certificate by some Spanish immigration offices as an example, the standard process is as follows:
- Obtain the original criminal record certificate in your country of origin.
- Have the document apostilled by the designated authority in your country of origin.
- Submit the complete apostilled document (including the Apostille page itself) to a Spanish sworn translator for a full sworn translation.
Therefore, to ensure your application goes smoothly, the safest approach is to confirm the specific requirements with the receiving Spanish institution beforehand. If you cannot confirm, completing both the Apostille and the sworn translation is the best strategy to prevent your documents from being rejected.