An international affidavit is a sworn written statement, executed before a commissioned notary public, intended for legal use in a foreign country. Unlike domestic affidavits, documents intended for international use carry specific authentication requirements that vary by destination country.

For countries that are members of the Hague Apostille Convention — including Italy, Spain, Portugal, France, Germany, Greece, and Brazil — the document must bear an apostille certificate issued by the appropriate state authority. This certificate confirms the authenticity of the notary's signature for foreign recognition.

For non-Hague countries, such as the UAE, a full consular legalization chain is required, involving additional authentication steps beyond apostille.