A foreign document may need two separate operations: authenticating the public signature and making its content officially understandable in Spanish. An apostille, diplomatic legalisation and a sworn translation are not the same thing.
This guide explains the general route, not individual legal advice. The issuing country, document type and applicable treaties determine the exact procedure.
1. Confirm the document you must provide
Start with the official list for your case. Obtain a complete, final version with signatures, stamps, reverse sides and attachments. Check names, dates and places against your passport and the rest of the file before paying for further steps.
2. Choose apostille, legalisation or an exemption
The Hague Apostille replaces diplomatic legalisation when the issuing and destination countries apply the Convention and the document is covered. Otherwise a diplomatic legalisation chain may be required. Some treaties remove both requirements.
For certain public documents issued in another EU Member State, Regulation (EU) 2016/1191 prevents authorities from requiring an apostille. This applies only to the matters and conditions covered by the Regulation, not automatically to every EU document.
3. Authenticate the final original
Request the apostille or legalisation from the authority competent for that document type. Do not authenticate a plain copy where an original or certified copy is required. Authentication confirms the signature or seal; it does not validate the content or extend the document’s validity.
4. Translate the complete set
If the document is not in Spanish, arrange the appropriate official translation. Give the translator the final document with its apostille or legalisation and ask whether stamps, notes and reverse sides must also be translated.
Translations by professionals authorised by Spain’s Ministry of Foreign Affairs are official and need no further legalisation by that Ministry. Check that the translator is active for the required language in the official register.
5. Track the underlying validity
An apostille, legalisation or translation does not renew the original. There is no single validity period for all birth, criminal-record or other certificates: check the procedure, the issuer and your specific case. Replacing or correcting the original normally means repeating the related authentication and translation.
6. Digitise every element
Scan every page in order, including stamps, apostille, reverse sides and the translator’s certification. Check readability and file size before upload, and keep the originals and receipts.
Exceptions and differences
EU documents covered by Regulation 2016/1191 may use multilingual standard forms that reduce translation needs. Other treaties may change authentication. Consular translations and translations produced outside Spain follow different rules; confirm acceptance before ordering them.
Ready when
- the final document matches the rest of the application;
- you have confirmed the applicable apostille, legalisation or exemption;
- authentication covers the correct original;
- the official translation is complete and tied to that version;
- the underlying document remains acceptable for the planned filing date;
- the digital file includes every page, stamp and certification.
Next step
Place each document into the overall order for exams, certificates and filing.