If you’re preparing a Korean document for use overseas — for university admission, a visa, a marriage registration, or a business filing — you’ve probably run into two terms that get thrown around interchangeably: notarization and apostille. They are not the same thing, they’re issued by different authorities, and using the wrong one can get your document rejected weeks into a process you thought was finished. This confusion is common because Korea, like most countries, sometimes requires both procedures in sequence, and the correct combination depends on the specific document and where it’s going.
Quick Answer: Notarization vs. Apostille
| Notarization (공증) | Apostille (아포스티유) | |
| Korean term | 공증 | 아포스티유 |
| Main purpose | Certifies a signature is genuine, a copy matches the original, or a translation is accurate | Certifies that a signature, seal, or stamp on a public document is authentic, for international recognition |
| Who issues it | A licensed Korean notary (notarial office/law firm) | Overseas Korean Agency or Ministry of Justice, depending on document type |
| What is verified | The identity of a signer, the fidelity of a copy, or a translator’s certification | The authenticity of the official seal/signature on a public document (including a notarial certificate) |
| Where it’s used | Primarily within Korea’s domestic legal system | In any of the roughly 129 Hague Apostille Convention member countries |
| Does it prove contents are true? | No — it confirms execution, not factual accuracy | No — it confirms authenticity of the signature/seal, not the truthfulness of the content |
| Required for every document? | No — only for private documents or certain acts requiring certification | No — only when the destination country/institution requires international recognition |
| Relationship to international use | Can be a prerequisite step for apostilling a private document | The end-stage certificate that makes a document usable abroad in Convention countries |
What Is Notarization in Korea?
Notarization (공증) is a domestic procedure in which a licensed Korean notary certifies that a signature is genuine, that a copy accurately reflects an original, or that a translation faithfully represents its source text. The notary does not verify or vouch for whether the underlying facts in the document are true. Their role is limited to confirming that the document was properly signed, copied, or translated by the person claimed.
Notarization in Korea typically applies to:
- Powers of attorney
- Contracts and agreements
- Affidavits and sworn declarations
- Certified copies of documents
- Signature certifications
- Notarized translation (번역공증) certifies that a Korean-English or Korean-any language translation is accurate
Notarization matters most for private documents (사문서). Those created or signed by an individual or company rather than issued directly by a government agency. A notarized document gains legal weight domestically, but notarization alone does not make a document valid overseas; it has no independent international legal effect outside Korea’s jurisdiction.
What Is an Apostille in Korea?
An apostille is a standardized certificate attached to a public document that authenticates the signature, seal, or stamp on that document, allowing it to be recognized in other countries without further embassy legalization. It exists because of the 1961 Hague Convention Abolishing the Requirement of Legalisation for Foreign Public Documents, which Korea joined in 2007. As of 2026, roughly 129–130 countries are contracting parties to the Convention.
An apostille does not certify that the content of a document is true. It only confirms that the signature, seal, or stamp on the document is genuine and that the issuing official had the authority to issue it. Importantly, the apostille is a separate certificate physically attached to the document, and the document itself is unchanged; the apostille simply vouches for the authenticity of its official marks.
Korea’s apostille system is split between two competent authorities, according to official government regulation:
- Overseas Koreans Agency (재외동포청) — issues apostilles for documents from administrative agencies (national and local government), as well as court-issued documents.
- Ministry of Justice — issues apostilles for documents from the Ministry of Justice and affiliated agencies (including the Prosecution Service), and for notarized/notarial documents.
For countries that are not parties to the Hague Convention, Korea instead issues a “본부영사확인서” (headquarters consular confirmation) through the Overseas Koreans Agency, which serves a similar authentication function but is not recognized as an “apostille” under the treaty.
Since 2016, Korea has also operated an e-Apostille system (apostille.go.kr), allowing free, instant online issuance for a growing list of eligible public documents — currently around 39–42 document types including family relation certificates, criminal record reports, resident registration copies, and certain academic transcripts issued through official platforms like NEIS or Government24. Documents issued abroad or notarized documents are not eligible for the online e-Apostille and must go through the in-person or mail-based process instead.
Do You Need Both Notarization and Apostille?
This depends entirely on the document type, its issuing source, the destination country, and the requirements of the receiving institution — there is no universal rule. Common scenarios include:
- Apostille only — for public documents issued directly by a Korean government agency (family certificates, criminal record reports, certain academic transcripts) headed to a Hague Convention country.
- Notarization + apostille — for private documents (powers of attorney, affidavits, contracts, or translations) that need to be certified by a notary first, after which the Ministry of Justice apostilles that notarial certification.
- Consular/embassy legalization instead of apostille — required when the destination country is not a Hague Convention member; in Korea’s system this is the 본부영사확인서 process.
- Translation + notarization + apostille — where a foreign-language version of a Korean document is needed, the translation itself may need notarization before the whole package is apostilled.
- Neither — some receiving institutions accept a plain certified copy or a simple signature without any formal authentication; always confirm requirements with the receiving party before starting the process.
Because requirements vary so much by receiving institution, always verify directly with the destination university, government agency, employer, or embassy before assuming which combination you need.
Common Documents That May Need Apostille in Korea
Eligibility and procedure vary by document, so treat the categories below as illustrative rather than automatic:
- Educational documents — diplomas, degree certificates, and transcripts issued through official school/NEIS or Government24 channels are often apostille-eligible; hand-written or manually issued school documents are typically excluded from the online system.
- Criminal record certificates — the 범죄·수사경력회보서 issued by the Korean National Police Agency is commonly apostilled via the Overseas Koreans Agency for visa, PR, or overseas employment purposes.
- Family-related documents — family relation certificates, basic certificates, marriage relation certificates, and adoption relation certificates issued through the court’s electronic family registry system.
- Business documents — corporate registration certificates, business registration certificates issued by the National Tax Service.
- Private documents — powers of attorney, affidavits, and contracts, bills, which generally require notarization before apostille.
Can Foreigners Get an Apostille in Korea?
Yes. Foreigners residing, studying, working, or doing business in Korea or abroad can apply for apostilles on eligible Korean-issued documents. The requirement is generally about the document’s origin and type, not the applicant’s nationality. Foreign nationals applying for a Korean criminal record report, for example, can use the same online KNPA portal (crims.police.go.kr) as Korean citizens, selecting the “foreign entry/stay” purpose option, and then apply for the apostille through the Overseas Koreans Agency or Ministry of Foreign Affairs. Foreigners who are not physically in Korea can typically apply through a Korean embassy/consulate abroad or via an authorized representative or service provider in Korea, since many apostille applications allow submission by mail or third-party agent.
KoreanApostille.com: How We Can Help
Navigating which combination of notarization, apostille, and translation your specific document needs, and then physically visiting a Korean government office or notary to get it, is genuinely difficult to do remotely, especially without fluent Korean. KoreanApostille.com is an English-speaking service that manages this process for individuals and businesses who need Korean-issued documents authenticated for use abroad.
KoreanApostille.com can assist with:
- Apostille processing for Korean-issued documents — handling submission to the appropriate Korean authority and international delivery, so clients don’t need to visit government offices in person.
- Embassy/consular legalization — for documents headed to non-Hague countries, coordinating notarization, MOFA authentication, and embassy submission as a single remote process.
- Notarized translation — certified Korean-English and Korean-any language translations, which is often the required first step before a private document can be apostilled.
This makes the service particularly useful if you’re unsure whether your document needs notarization, an apostille, or both — or if you simply don’t have the time or ability to navigate Korean government offices yourself. KoreanApostille.com operates as a document-processing service, not a government agency, and works alongside official Korean authorities to complete each step correctly. If you’re unsure which process your document needs, KoreanApostille.com can help you determine the appropriate route and assist with the required steps from start to finish.
What Notarization Does NOT Do
Crucially, notarization does not prove:
- The contents of the document are true or accurate
- The document was legally created
- The document is valid in other countries
- The signer had authority to sign
A notary certifies the mechanical integrity of the document, that a copy matches an original, or that a person signed before them, not the truth of what the document says.
When Notarization Is Required in Korea
1. Private Documents (사문서)
Private documents—those not issued by government—must be notarized before they can receive an apostille. Examples include:
- Private university diplomas and transcripts (사립대학 졸업장)
- Power of attorney documents (위임장)
- Affidavits and declarations (선서공증)
- Company employment letters (회사 경력증명서)
- Personal contracts (개인 계약서)
- Translations of original documents (번역공증)
2. Certified Copies
When you need an official certified copy of a document for international use, a Korean notary can certify that your copy is a true and accurate reproduction of the original.
3. Notarized Translations (번역공증)
If your document needs to be submitted in a language other than Korean, you can have a professional translation notarized. The notary certifies:
- The identity of the translator
- That the translator attests to the accuracy of the translation
- That the translated document is a faithful rendering of the original
(Note: Notarized translation does not guarantee the translation is perfect—only that a certified professional created it.)
How to Get an Apostille in Korea
- Identify the document and confirm exactly what the receiving institution requires (apostille, consular legalization, or something else).
- Determine whether it’s public or private. Public documents from government agencies typically skip notarization; private documents usually need it first.
- Obtain the correct version of the document.
- Arrange translation if required, and have the translation notarized if the destination requires a certified translation.
- Complete notarization for private documents through a licensed Korean notary.
- Apply for the apostille, either online at apostille.go.kr for eligible document types, or in person/by mail through KoreanApostille.com, depending on the document category.
- Verify the apostille using the official verification tools on apostille.go.kr, which allow both the certificate and underlying document to be checked for authenticity.
- Submit or ship the completed document to the destination institution or country.
Frequently Asked Questions
Is an apostille the same as notarization?
No. Notarization certifies a signature, copy, or translation domestically; an apostille is an international certificate that authenticates an official signature or seal for use in Hague Convention countries.
Do I need notarization before an apostille?
Only for private documents. Public documents issued directly by a Korean government agency generally do not require notarization first.
Can I apostille a notarized document in Korea?
Yes — notarized private documents are apostilled by the Ministry of Justice, which authenticates the notary’s certification.
Can I get an apostille without a notary?
Yes, for public documents issued directly by a government agency that already bear an official seal.
What documents require apostille in Korea?
It depends on the destination country and receiving institution, but commonly apostilled documents include family relation certificates, criminal record reports, academic transcripts issued through official systems, and business registration certificates.
How do foreigners get an apostille in Korea?
Foreigners can apply directly if the document is eligible and they have the required verification method, or through a Korean embassy/consulate abroad, or via an authorized service provider such as KoreanApostille.com.
For more information on embassy or consular legalization, check out Embassy Legalisation of Korean Documents: The Complete Guide for Non-Hague Countries (UAE, Saudi Arabia, Kuwait, Thailand, Vietnam & More)!
