Foreign couples marrying in Korea usually ask whether a prenuptial agreement is "valid here." That is the wrong question. The real question is which court will eventually interpret it and what that court will be looking for.

"Korea doesn't recognize prenups." It is the first thing many foreigners are told, and it is simply wrong.

Article 829 of the Korean Civil Act has recognized marital property agreements for a long time. What it does not cover is something narrower, which is contracting out of property division on divorce. The Korean Supreme Court has held that the right to claim division of marital property comes into existence only when the divorce takes effect, and that a right which does not yet exist cannot be waived in advance. It simply does not do the one thing an American-style prenup is usually written to do.

Article 829 also states that a marital property agreement must, in principle, be registered before the marriage in order to be enforceable against successors or third parties. This suggests that Article 829 was designed primarily to regulate the spouses' property relationship during the marriage, particularly in relation to third parties, rather than to determine how property should be divided after divorce.

If we break it down, we can think of three types of couples with different nationalities (using US citizens as an example) getting married in Korea:

  •  Two Americans living in Korea getting married to each other;
  •  An American getting married to a Korean in Korea; and
  •  An American marrying someone from a country other than Korea or the US.

The legal effect of the very same prenuptial agreement may differ dramatically depending on the above circumstances. None of this is a drafting difficulty. It is a sequencing problem running from the agreement through to the marriage registration, and it has to be structured depending on who the parties are and where the proceedings may take place.

So, the real question is not whether a prenup is "valid in Korea." The real question is which court will eventually decide the divorce, which law that court will apply, and whether the agreement was drafted with that legal framework in mind. A well-drafted prenup is therefore less about copying a template and more about anticipating the jurisdictions that may one day interpret it. Because every international marriage involves a unique combination of nationality, residence, assets, and future jurisdiction, there is rarely a one-size-fits-all prenuptial agreement.

At Rockcliffe Law, every consultation on Korean family law matters, including cross-border marriages, prenuptial agreements, international divorce, and jurisdictional issues, is conducted directly by our Managing Partner.