What should I know about Korean rental contracts, and how do I protect myself when signing an apartment lease?

Korean rental contracts are worth understanding carefully, since the deposits are large and the system has quirks. There are two main types: 월세 (monthly rent with a modest deposit) and 전세 (a very large lump-sum deposit, often tens of thousands of dollars, with little or no monthly rent, returned at the end). Because those deposits are big, protecting them is the whole game. Before signing, ask the agent (부동산) for the property's registered copy, the 등기부등본, and check it for existing mortgages or liens (근저당), because if the landlord defaults and the property is auctioned, prior liens get paid before your deposit, so a heavily mortgaged property is a red flag. Confirm the person signing is the actual registered owner by matching the document to their ID.

Two steps protect your deposit after moving in and are essential: file your move-in report (전입신고) at the local community center and get a fixed-date stamp (확정일자) on your contract, which together give your deposit legal priority. For 전세 especially, consider deposit-guarantee insurance (전세보증보험) through HUG or SGI, which repays you if the landlord cannot. In the contract, make sure the deposit, rent, term, maintenance fee (관리비) and what it covers, move-in and move-out dates, and any special terms (특약) are all written down, and photograph the unit's condition at move-in. Use a licensed agent, get everything in writing, and if your Korean is limited bring a Korean-speaking friend. The 등기부등본 check plus 전입신고 and 확정일자 are the core protections.