Authentication
Korean Document Authentication: Which Type Do You Need? (서류 인증)
“Authentication” is an umbrella term: it means having a document's authenticity officially confirmed so another party — at home or abroad — will accept it. The right route depends on your document and where it is going. A government-issued document for a Hague country needs an apostille; for a non-member country it needs consular legalization; a private document usually needs notarization first; and a foreign document for use in Korea follows its own path. Find an agent on Seoul Apostille who identifies the correct route and handles it end to end.
When This Service Is Relevant
- You are unsure whether you need an apostille, consular legalization, or notarization
- An authority asked you to “authenticate” a document without specifying how
- You have a mix of public and private documents needing different routes
- You are sending Korean documents abroad, or bringing foreign documents into Korea
- You want one provider to assess the whole set and handle every step
What to Prepare
- A list of the documents and whether each is government-issued or private
- The destination country, or that the document is for use in Korea
- The authority or party that will receive them
- Any deadline, so the route can be planned around it
Process Notes
- Public (government-issued) documents for a Hague country → apostille; for a non-member country → consular legalization.
- Private documents (POA, affidavit, contract) usually need notarization first, then apostille or legalization.
- A foreign document for use in Korea is authenticated in its country of origin (apostille or legalization), not by Korea — your agent advises on this.
- Your agent assesses the whole set at once so each document takes the correct, fastest route without duplicated steps.
Frequently Asked Questions
What is the difference between authentication, apostille, and legalization?
Authentication is the general idea of proving a document is genuine. An apostille is the specific stamp used between Hague Convention countries; consular legalization is the embassy-based route for non-member countries. Your agent determines which one your document actually needs.
An authority just told me to 'get it authenticated' — what do they mean?
It depends on the country. For Hague members they almost always mean an apostille; for non-members they mean consular legalization. Tell your agent the destination and document and they will confirm the exact step.
Can an agent handle several documents that each need a different route?
Yes. Your agent assesses the whole set, routes public documents to apostille or legalization and private ones through notarization first, and returns everything ready to submit.
Do I also need a translation?
Usually, when a document crosses a language border. Your agent can add certified translation to whichever authentication route applies, in the same request.
Related Documents
Need This Document Authenticated?
Share your document and the requesting authority. We'll connect you with an agent who coordinates authentication and any required follow-on steps.