The apostille system was created to simplify international document verification. Before 1961, authenticating a document for use abroad required multiple steps approval from the issuing country, legalization at the foreign consulate, and sometimes further certification. This process was slow, costly, and inconsistent.
The 1961 Hague Apostille Convention introduced a single, standardized certificate the apostille recognized by all member countries. Today, over 120+ countries, including the UK and Spain, are members. This makes international document authentication faster, reliable, and globally accepted.
How the Convention Works
Key points of the convention:
The UK and Apostilles
The UK has been a member since 1965. Brexit did not affect UK membership in the Hague Convention, so UK apostilles remain fully valid in Spain. What changed is only which documents Spanish authorities now require from UK nationals for visas, residency, or other administrative purposes.
Spain and Apostilles
Spain joined the convention in 1978. Spanish authorities notaries, universities, courts must accept apostilled UK documents. Spain also participates in the e-Apostille program, allowing digital verification of documents from the UK.
Documents That Qualify
Under the Hague Convention, only public documents can be apostilled:
Private contracts or letters do not qualify unless notarized; in that case, the apostille covers the notary’s certification, not the private document itself.
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