Apostille vs Consular Legalisation

Differences, procedures and common mistakes to avoid

Whenever you intend to use a public document outside the country where it was issued, you must prove the authenticity of the signature and the capacity of the official who signed it. There are two possible procedures: an Apostille (if both the issuing and receiving countries are parties to the 1961 Hague Convention) or consular legalisation (if either country is not a party to the Convention or if the document is excluded from its scope). An Apostille replaces the traditional diplomatic chain with a single certificate, whereas consular legalisation requires a sequence of official certifications between the authorities of the issuing country and the diplomatic representatives of the receiving country.

Whenever documents are to be used internationally, it is important to establish the correct procedure and the proper order for certified translation. If your document requires translation, and where necessary the Apostille itself or the legalisation stamps also need translating, you can arrange everything 100% online through EasyTrads.

What Is an Apostille and When Is It Required?

The Hague Apostille (1961) is a standardised certificate that authenticates the signature and official capacity of the person who signed a public document so that it can be used in another Contracting State to the Convention. It is issued by the competent authority in the country where the document originated (such as courts, notaries, notarial associations or government ministries, depending on the type of document). Its purpose is to replace traditional diplomatic legalisation with a single certificate. It does not certify the contents of the document, only its formal authenticity.

In Spain, practical guidance, including information about the e-Apostille and online verification, is provided by the Ministry of Justice, which manages guidance, applications and access to the official verification register.

When should you use it? Whenever both the issuing country and the receiving country are parties to the Hague Convention and the document is eligible for an Apostille (judicial documents, administrative documents, notarised documents or official certifications attached to private documents). If either country is not a party to the Convention, or if the document is excluded (for example, consular documents), an Apostille cannot be used.

What Is Consular Legalisation and When Does It Apply?

Consular legalisation (also known as diplomatic legalisation) is a chain of official certifications: the competent authority in the issuing country → the Ministry of Foreign Affairs of the issuing country → the embassy or consulate of the destination country. This procedure applies whenever an Apostille cannot be used, either because of the countries involved or the nature of the document itself.

When should you use it? Whenever either the issuing country or the receiving country is not a member of the Hague Apostille Convention, or when the document itself is excluded from the Convention.

Key Differences Between a Hague Apostille and Consular Legalisation

• Scope
  • Apostille: valid between countries that are parties to the 1961 Hague Convention.
  • Legalisation: used for countries outside the Convention or for excluded documents.
• Procedure
  • Apostille: a single certificate issued by the competent authority.
  • Legalisation: multiple official stamps obtained through different government bodies and diplomatic offices.
• Purpose
  • Both procedures authenticate the signature and official capacity of the signatory, not the contents of the document.
• Format
  • Apostille: available on paper or electronically (e-Apostille), with online verification through official registers.
  • Legalisation: consists of consular stamps or endorsements. Whether a digitally signed PDF or a paper original is accepted depends on the receiving authority.

The Correct Order When a Certified Translation Is Required

The practical rule is straightforward: first obtain the Apostille or complete the legalisation process; then arrange the certified translation. This ensures that the sworn translation includes the document in its final authenticated form, including the Apostille or legalisation stamps, avoiding the need for a second translation later.

For a certified translation agency, the process generally applies to:

• Certificates (birth, marriage, death and similar civil documents);
• Academic documents (degrees, transcripts and study programmes);
• Corporate documents (articles of association, powers of attorney, company accounts and contracts);
• Financial and personal documents.

The client simply provides the final authenticated document (with the Apostille or legalisation already attached). The entire document is then translated as one certified file and delivered either on paper, as a digitally signed PDF, or both, depending on the receiving authority’s requirements.

Recommended Procedure

If an Apostille applies

1. Confirm that both the issuing and receiving countries are parties to the Hague Convention.
2. Identify the competent authority responsible for your type of document.
3. Obtain the Apostille, either on paper or as an e-Apostille.
4. Request a certified translation of both the document and, where required, the Apostille itself.

If consular legalisation applies

1. Obtain the required internal certification in the issuing country.
2. Complete the process with the issuing country’s Ministry of Foreign Affairs.
3. Obtain legalisation from the embassy or consulate of the receiving country.
4. Arrange a certified translation of the document together with all legalisation stamps and endorsements.