A U.S. case that touches Korea usually needs Korean paper: a land register showing when a parent’s apartment changed hands, a family relationship certificate showing who the heirs are, a Korean divorce judgment and proof that it became final. U.S. counsel often assume these are either freely available or impossible to get. Neither is quite right. Korean public records are well organised and largely computerised, but each category has its own rule on who may obtain it — and a record that is lawfully obtained can still fail at the U.S. end if it is the wrong version, unauthenticated or poorly translated.
This note sets out which Korean records typically matter in U.S. litigation, who is entitled to obtain them under Korean law, and how authentication and translation fit the U.S. evidence rules.
Who this note is for
U.S. litigators — and counsel in other common-law jurisdictions — who need Korean public records as evidence in divorce, probate, commercial or immigration-related proceedings.
It describes Korean access rules and the authentication framework. Admissibility in a particular U.S. court is a question of U.S. law for U.S. counsel.
Three questions for every Korean record
Korean records that most often matter — and who may obtain them
| Record | What it can show | Who may obtain it |
|---|---|---|
| Real estate register — certified copy (등기사항증명서) | Owners, causes and dates of transfer, mortgages and other encumbrances | Anyone, on payment of a fee; attached application documents only to the extent of the requester’s interest (Registration of Real Estate Act Art. 19(1)) |
| Closed real estate registers (폐쇄등기부) | Chain of title before computerisation or before a parcel was split or merged | Available, but must be identified and requested separately |
| Company register (법인등기부) | Directors, representative director, capital, registered office and their history | Anyone, on payment of a fee (Commercial Registration Act Art. 15(1)) |
| Family relationship registration certificates (가족관계등록 증명서) | Birth, death, marriage, divorce, adoption, parents and children | The person concerned, a spouse or lineal relative, or their authorised agent, plus listed exceptions (Family Relationship Registration Act Art. 14(1)) |
| Closed registration records and removed family registers (제적등본, pre-2008) | Family relationships recorded under the old family-register (호적) system | The same restrictions apply to closed records (Art. 14(6)) |
| Court records: judgments, certificates of finality (확정증명), service records | The outcome of Korean proceedings and when it became final | Parties, and third parties who show an interest (Civil Procedure Act Art. 162(1)); anonymised judgments are open to anyone (Art. 163-2) |
| Tax filings and assessments | How a gift, inheritance or sale was reported to the tax authorities | Protected by tax confidentiality; normally obtained by or through the taxpayer |
| Bank and remittance records | Whether and from whom money moved | Not public — see the bank records section below (Act on Real Name Financial Transactions Art. 4(1)) |
The table is a map, not a checklist. For older properties and for families whose records pre-date 2008, which records exist — and in which registry office or archive — has to be worked out case by case.
Family certificates: the version you order decides what the court sees
Since 2008 Korea has recorded family status in individual registration records rather than the old household-based family register. Under Article 15 of the Family Relationship Registration Act, five certificates can be issued — family relationship, basic, marriage, adoption and full-adoption — and each comes in a general version and a detailed version. The general version deliberately leaves things out.
| Certificate | General version shows | Detailed version adds |
|---|---|---|
| Family relationship certificate (가족관계증명서) | Parents, spouse, and living children of the current marriage (Art. 15(2)(i)) | All children (Art. 15(3)(i)) |
| Marriage certificate (혼인관계증명서) | The current marriage only (Art. 15(2)(iii)) | Matters of marriage and divorce — earlier marriages included (Art. 15(3)(iii)) |
| Basic certificate (기본증명서) | Birth, death, loss of nationality (Art. 15(2)(ii)) | Acquisition and restoration of nationality (Art. 15(3)(ii)) |
| Adoption certificate (입양관계증명서) | Current adoptions (Art. 15(2)(iv)) | Adoptions and dissolved adoptions (Art. 15(3)(iv)) |
The consequence for a U.S. case is direct. A general marriage certificate for a party who divorced in Korea before the U.S. marriage will not show the earlier marriage. A general family relationship certificate will not show a child from a previous relationship. If the issue is the validity of a marriage, the identity of all heirs or the existence of another child, a general certificate can be accurate and still incomplete.
Korean law also pushes in the other direction. A person who requires someone to submit a certificate must ask for the minimum version needed and must explain why if a detailed certificate is requested (Art. 14(5)). For a foreign national recorded in a Korean spouse’s file, the certificate shows only the name, sex, date of birth, nationality and alien registration number (Art. 15(1) proviso).
Access to family records is personal
Article 14(1) of the Act gives the right to request certificates to the person concerned, a spouse and lineal relatives, or an agent they authorise. Others may apply only in listed cases — including where the certificate is needed “in litigation, non-contentious or civil execution proceedings” (Art. 14(1)(ii)). The Act does not say whether proceedings in a foreign court fall within that exception, and the registry may refuse a request that is clearly for an improper purpose, such as invading the privacy of the person recorded (Art. 14(4)).
In U.S. litigation this often means that the most straightforward source of a family certificate is the party who is entitled to it — or, where that party is the opponent, a discovery request in the U.S. proceedings for the party to obtain and produce it.
Bank records are not public records
Korean bank records sit outside the public-record system altogether. Under Article 4(1) of the Act on Real Name Financial Transactions and Confidentiality, a financial institution may not disclose transaction information without the account holder’s written request or consent, subject to listed exceptions — the first of which is a production order of a court or a warrant issued by a judge. A U.S. subpoena or discovery order does not take effect in Korea by itself. The realistic routes are therefore the account holder’s own request or consent, or a request for judicial assistance through the Korean courts under the Hague Evidence Convention, to which both Korea and the United States are parties.
Authentication: the apostille
Federal Rule of Evidence 902(3) treats a foreign public document as self-authenticating when it is accompanied by a “final certification” of the signer’s genuineness and official position, traditionally issued by a U.S. consular officer; Federal Rule of Civil Procedure 44(a)(2) follows the same pattern for foreign official records, and many state rules track the federal text. Korea and the United States are both parties to the Hague Apostille Convention (in force for Korea since 14 July 2007), so between them the apostille issued by the designated Korean authority takes the place of consular legalisation.
Two limits are worth keeping in mind:
- An apostille certifies the origin of the document, not its content. It confirms the signature, seal and capacity of the issuing official. Whether the record means what a party says it means is a separate question — often a question of Korean law.
- Not every version of a record can be apostilled in the form it was obtained. Records printed from online systems, copies of court files and translations prepared by private translators are treated differently from certificates issued over the counter. Which version to obtain is best settled before anything is ordered.
Translation: a U.S. rule question with Korean content
What the translation must look like is governed by the forum. In Texas, for example, Rule of Evidence 1009 requires the translation and the original to be served at least 45 days before trial with a qualified translator’s affidavit or unsworn declaration; an objection to accuracy must be served at least 15 days before trial, and an unopposed translation is admitted without later attack on its accuracy.
The difficulty is that Korean records use terms that have no clean English equivalent. 등기원인 is not simply “reason”; 등록기준지 is not a home address; 본 (clan origin) and the old 호주 (head of household) have no U.S. counterpart. A translation can be linguistically correct and still mislead a U.S. judge about what the record proves. Where the meaning of a term is itself disputed, it is a matter for a Korean law opinion rather than for the translator’s affidavit.
Privacy and redaction
Korean family certificates carry the resident registration number (주민등록번호) of each person listed, and the first six digits of that number are the date of birth; real estate registers show owners’ registration numbers in part. Before filing, U.S. counsel will want to apply the forum’s redaction rules — in federal court, Federal Rule of Civil Procedure 5.2(a) limits filings to the year of birth, the initials of a minor and the last four digits of financial-account numbers. Korean certificates also commonly list third parties — parents, siblings, children from other relationships — whose details have nothing to do with the dispute.
Where Korean records most often cause trouble in U.S. proceedings
- The general certificate was ordered. The earlier marriage or the other child is simply not on it.
- Only the current register was produced. The relevant transfer is on a closed register that nobody requested.
- A judgment without a certificate of finality. A Korean judgment shows what was decided, not that it became final; the two are separate documents.
- Name mismatches. Romanisation in a U.S. passport, a Korean certificate and a translation may all differ, and a married woman’s surname does not change on Korean records.
- Records from before 2008. Facts recorded under the old family-register system sit in removed registers and are read differently from today’s certificates.
- Timing. Korean retrieval, apostille and translation run on their own schedule, while U.S. disclosure and translation deadlines do not move.
For what Korean real estate records say about how a property was acquired, see our note Is Korean real estate a gift, an inheritance or a purchase? Where the records have to be explained to the court by a Korean lawyer, see Korean law expert witnesses in U.S. litigation and our note on written Korean law opinions for foreign courts.
How we assist U.S. counsel
Yeohae Law Office acts as Korean counsel in cross-border matters: identifying which Korean records exist for a person, a company or a property, obtaining what can lawfully be obtained, arranging authentication and translation, and explaining what the records mean under Korean law. Where the records need to be explained to the court, we can do that as a written Korean law opinion or as testimony — we have prepared Korean law statements for proceedings in Australia and a U.S. state court, and given video-recorded deposition testimony as a Korean law expert in that U.S. case. We correspond with instructing counsel in English.
Key takeaways
• Real estate and company registers are open to anyone (Registration of Real Estate Act Art. 19(1); Commercial Registration Act Art. 15(1)).
• Family relationship certificates are restricted to the person concerned, a spouse, lineal relatives and listed exceptions (Family Relationship Registration Act Art. 14(1)).
• General certificates omit earlier marriages and children outside the current marriage; detailed certificates include them (Art. 15(2)–(3)).
• Korean bank records require the account holder’s consent or a court order (Act on Real Name Financial Transactions Art. 4(1)); a U.S. subpoena does not reach them directly.
• Korea and the United States are both Apostille Convention parties; the apostille replaces consular legalisation but certifies origin, not content.
Frequently asked questions
Can a U.S. lawyer obtain a Korean family relationship certificate for the opposing party?
Not as of right. Under Article 14(1) of the Family Relationship Registration Act, certificates are issued to the person concerned, a spouse, lineal relatives or their authorised agent, and to others only in listed cases, such as where the certificate is needed in litigation. The Act does not say whether foreign proceedings qualify, so the certificate is often obtained from the party entitled to it.
What is the difference between a general and a detailed Korean marriage certificate?
A general marriage certificate shows only the current marriage. A detailed certificate adds matters of marriage and divorce, including earlier marriages (Family Relationship Registration Act Art. 15(2)(iii) and 15(3)(iii)). Where a prior marriage or divorce matters to the U.S. case, the general version will not show it.
Do Korean public documents need an apostille for use in a U.S. court?
Federal Rule of Evidence 902(3) requires a foreign public document to carry a final certification to be self-authenticating. Because Korea and the United States are both parties to the Hague Apostille Convention, an apostille from the designated Korean authority takes the place of consular legalisation. The apostille confirms the signature and seal, not the accuracy of the content.
Can Korean bank records be obtained with a U.S. subpoena?
Not directly. Under Article 4(1) of Korea’s Act on Real Name Financial Transactions and Confidentiality, banks may disclose transaction information only on the account holder’s written request or consent or under listed exceptions such as a court’s production order. The usual routes are the account holder’s consent or judicial assistance through the Korean courts under the Hague Evidence Convention.
For U.S. counsel
Tell us which facts you need to prove from Korean records — a transfer of property, a prior marriage, the heirs of a deceased parent, the officers of a Korean company — and the deadlines in your case. We will tell you which Korean records are likely to exist, who can obtain them, and what authentication and translation the U.S. court is likely to need. You do not need to have identified the records before you write.
Email info@leesunsin.com · U.S. (240) 348-9181 · Seoul +82-2-537-2370. Our team replies to initial inquiries in English and, where the matter calls for it, arranges a consultation with a Korean lawyer.
We do not publish fee schedules. The work varies with the number and age of the records involved and whether a written opinion or testimony is required, so terms are set out in the engagement letter.
This note explains Korean law in general terms and is not legal advice for any particular case. U.S. admissibility and procedure are matters for U.S. counsel. Written as of October 2026; Korean statutes as in force on that date (including the Family Relationship Registration Act as amended by Act No. 21857, effective 2 October 2026).
