What is Apostille? Definition & Guide
A certificate that authenticates a document for use in another country under the Hague Convention.
An apostille is a standardized certificate issued by a designated authority in the country where a document originates. It authenticates the document for legal use in any other country that is party to the 1961 Hague Convention Abolishing the Requirement of Legalisation for Foreign Public Documents.
In the context of Golden Visa and citizenship by investment applications, apostilles are required on nearly all supporting documents: birth certificates, marriage certificates, police clearance records, academic transcripts and financial statements. Each document must be apostilled in the country where it was issued before submission to the host country's immigration authority.
The apostille itself confirms the signature, the capacity of the person who signed the document, and the identity of any seal or stamp on the document. It does not verify the content of the underlying document.
In the United States, apostilles are issued by the Secretary of State's office in the state where the document was notarized or issued. Processing times vary from same-day to several weeks depending on the state. Costs range from $5 to $25 per document, though expediting services charge more.
Countries not party to the Hague Convention require a longer process called embassy legalization instead.
Why It Matters for Golden Visa Applicants
Golden Visa applications require apostilled copies of birth certificates, marriage certificates, police clearance records and financial documents. Missing or incorrectly apostilled documents are a common cause of processing delays. Applicants should budget four to eight weeks for apostille processing across all required documents, particularly if documents originate from multiple US states, each with its own Secretary of State processing timeline.
Example
"The applicant's US birth certificate required an apostille from the California Secretary of State before Portugal's immigration authority would accept it."