Same-Sex Couples May Be Legally Protected in Korea: Life Partnership, Damages, and Cohabitation Agreements
BySangjin Ji, Administrative Attorney3 years of embassy visa practiceLinkedIn
BySangjin Ji, Administrative Attorney3 years of embassy visa practiceLinkedIn

Hello, this is Administrative Agent Jean.
In June 2026, a Korean court held that a same-sex couple’s shared life may, in certain circumstances, be legally protectable.
On June 5, 2026, the Seoul Central District Court Civil Appeals Division 3-2 partially upheld a damages claim filed by A against C, a third party who contributed to the breakdown of A’s relationship with same-sex partner B.
The Court viewed A and B’s relationship as more than a simple romantic relationship.
It described the relationship as a life partnership similar to a de facto marriage.
The Court then ordered C to pay KRW 10 million in damages.
This decision did not recognize same-sex marriage.
But it did show that when a same-sex couple has actually lived together, been recognized by family, and formed an economic community, the interests arising from that life partnership may be legally protected.
This article explains the meaning of the decision and the documents that same-sex and unmarried couples can prepare to reduce disputes.
| Category | Details | |---|---| | Case | Seoul Central District Court Decision 2025Na10110, June 5, 2026 | | Core holding | Same-sex couple’s relationship recognized as a legally protectable life partnership similar to de facto marriage | | Evidence considered | Family recognition, participation in family events, economic community, and shared financial contributions | | Result | KRW 10 million damages awarded against the third party | | Limitation | The decision did not recognize same-sex marriage or full de facto marriage status under the Civil Act | | Practical point | Evidence and documents showing the substance of shared life are important | | Useful documents | Cohabitation agreement, living agreement, deposit contribution statement, shared property settlement agreement, fact confirmation statement |
The core meaning is not that the court directly recognized same-sex marriage or full de facto marriage status.
The important point is different.
The Court held that when a same-sex couple forms a relationship based on an intention similar to marriage and becomes mentally, physically, and economically connected as a shared life community, that relationship may constitute a legally protectable interest.
According to reports and case commentary, the Court considered factors such as:
In other words, if these materials had not existed, the outcome might have been different.
Saying “we were together for a long time” may not be enough.
Courts and institutions ultimately look at evidence.
No.
This point should be clearly separated.
The decision did not allow same-sex marriage registration. It also should not be overstated as a full recognition of same-sex de facto marriage under the Civil Act.
Rather, the Court acknowledged the current legal limits on same-sex marriage and de facto marriage, while recognizing that a same-sex couple’s life partnership similar to de facto marriage may still deserve legal protection.
A more accurate summary is:
The practical question is therefore:
How can the couple prove that their relationship was a real life partnership?
A had to go to court.
That likely required time, money, and emotional energy.
If the couple had prepared documents from the start, such as rules on living expenses, housing, deposit contributions, shared property, and settlement upon separation, proving the existence and substance of the relationship may have been easier.
For same-sex and unmarried couples, a cohabitation agreement is not only about preparing for separation.
Its more fundamental purposes are:
When marriage registration is accepted, certain protections arise automatically by law.
For same-sex and unmarried couples, those protections often do not operate automatically.
Documents can help fill part of that gap.
If any of the following apply, preparation is recommended.
Even if the couple has already lived together for years, preparing documents still has practical value.
The longer the shared life, the more assets and records there are to organize.
A cohabitation agreement should reflect the couple’s actual life.
The following clauses should generally be reviewed.
Housing is one of the biggest sources of disputes.
This is especially true when the leaseholder and deposit contributors are different.
A cohabitation agreement should include:
For example, if one person contributed KRW 30 million and the other contributed KRW 20 million to a KRW 50 million deposit, that ratio and transfer records should be clearly documented.
Even if the lease is under one person’s name, the actual contribution structure can be separately recorded.
Living expenses recur every month, so disputes often arise.
At first, expenses may be shared naturally. Over time, memories differ.
The following items should be organized:
The payment method should also be specified.
Examples include:
Shared property should also be covered.
Examples include:
For each item, the agreement should state who paid how much, who keeps the item if the relationship ends, and how much should be paid to the other person if one person keeps it.
If the couple is not legally married, hospitals or institutions may require an explanation of the relationship.
A cohabitation agreement or separate confirmation statement may include:
However, medical decision-making authority, life-sustaining treatment decisions, and legal representation may involve separate laws and institutional rules.
A simple agreement cannot solve every issue.
If needed, attorneys, notaries, and hospital-specific requirements should be reviewed.
This is the hardest section to write, but often the most important.
When the relationship is good, it may feel uncomfortable to write these clauses.
When the relationship ends, these clauses can reduce conflict.
The agreement should address:
A document cannot prevent separation.
But it can reduce confusion after separation.
In the 2026 decision, family recognition and economic community were important.
Therefore, evidence showing the substance of shared life should be organized in advance.
Examples include:
The point is not to search for evidence later.
The point is to organize it while life is ongoing.
Under the Administrative Agent Act, administrative agents may prepare documents concerning rights, obligations, facts, contracts, agreements, confirmations, and related submissions within the permitted scope.
For same-sex and unmarried couples, useful documents may include:
| Document | Purpose | |---|---| | Cohabitation agreement | Living expenses, deposit, shared property, and settlement rules | | Living agreement | Daily living rules, cost sharing, and shared household structure | | Deposit contribution statement | Clarifies lease title and actual contribution relationship | | Shared property list | Organizes ownership and settlement rules for appliances, furniture, vehicles, etc. | | Fact confirmation statement | Explains the substance of shared life to external institutions | | Party statement | Allows the parties to explain the relationship and shared life | | Evidence list | Organizes contracts, transfers, photos, receipts, and other materials | | External submission summary | Purpose-specific summary for employers, agencies, hospitals, or insurers |
However, an administrative agent does not resolve every legal issue.
Court litigation representation is handled by attorneys.
Notarization requires a notary process.
Inheritance, wills, trusts, tax, and insurance beneficiary designation may require review by attorneys, judicial scriveners, tax professionals, or insurance specialists.
The administrative agent’s role is to structure the couple’s living arrangement and agreement into documents, and to organize fact evidence for the intended purpose.
Notarization may be helpful depending on the matter.
However, it is not accurate to say that any notarized agreement automatically enables compulsory execution without a court judgment.
A simple notarization or certification of a private document can help prove that the document was signed or executed.
By contrast, to allow compulsory execution for a monetary obligation, a notarial deed with an execution acceptance clause may be required.
Different types of notarization have different legal effects.
| Type | Role | |---|---| | General cohabitation agreement | Organizes the agreement between the parties | | Certification of private document | Strengthens proof of signature and document formation | | Notarial deed with execution acceptance clause | May allow compulsory execution for certain monetary obligations if requirements are met | | Fact confirmation statement | Explains the substance of shared life |
If significant assets, deposits, loans, or settlement amounts are involved, notarization should be separately reviewed.
Yes.
In fact, the longer the couple has lived together, the more there may be to organize.
After five years of living together, there may be:
If the relationship ends without documentation, the first dispute may be over who paid what.
Preparing an agreement now allows the couple to organize past contributions and set a clear starting point going forward.
The document does not need to be perfect.
The first step is to organize the current situation.
The decision sends an important message.
The substance of a relationship should be explained through evidence.
The Court looked at facts that already exist in ordinary life.
These are not extraordinary materials.
But when they are scattered, their evidentiary power is weak.
When organized, they become a coherent explanation.
A cohabitation agreement and fact confirmation statement help turn scattered records into one understandable narrative.
Before drafting, answer these questions.
The answers usually reveal which documents are needed.
Ethos Administrative Office can assist same-sex and unmarried couples with life partnership documentation through:
The purpose of documentation is not to doubt the relationship.
It is to set standards that protect both people.
No. A cohabitation agreement alone does not automatically establish de facto marriage or a life partnership similar to de facto marriage. However, it may be important evidence of shared intent, economic community, living expense contributions, and shared residence.
No. The decision did not recognize same-sex marriage. It recognized that the interests arising from a same-sex couple’s life partnership similar to de facto marriage may be legally protected.
It may help depending on the matter. However, the legal effect differs depending on whether it is simple certification or a notarial deed with an execution acceptance clause.
Yes. It can help organize past contributions and reduce future disputes.
Yes. The agreement can cover caretaker, veterinary expenses, food costs, insurance, and pet custody if the relationship ends.
No. Litigation representation is handled by attorneys. An administrative agent can assist with documents such as agreements, fact confirmation statements, party statements, and evidence organization within the permitted scope.
Unmarried households and same-sex couples already exist in Korea.
They live together, pay expenses together, meet each other’s families, and form economic communities.
But the legal system does not always protect that life automatically.
The 2026 decision is meaningful because the court looked more directly at that reality.
Still, one court decision does not solve everything.
The substance of the relationship must be explained with evidence.
Family event participation, economic community, shared rental deposits, and records of shared life are often already present in daily life.
The important thing is not to leave them as scattered memories.
They should be organized into documents.
A cohabitation agreement or living agreement is not a cold document prepared only for separation.
It is a practical safety device that clarifies rights and responsibilities while people live together.
Turning vague trust into clear sentences.
That is one of the most realistic forms of preparation available to same-sex and unmarried couples today.
* This column is general information, not legal advice for a specific case.
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