Cost of Living in Seoul

Seoul's public transit system is among the finest in the world and renders car ownership entirely unnecessary. The subway network spans 23 lines covering over 1,000 km, with trains running every 2-5 minutes during peak hours and operating from approximately 5:30 AM to midnight. A single subway ride costs 1,400 KRW ($0.97) with a T-money card (1,500 KRW cash), with an additional 100 KRW per 5 km beyond the base 10 km distance. Buses complement the subway seamlessly, with a standard city bus fare of 1,500 KRW ($1.03) using T-money, and the integrated transfer system allows free transfers between subway and bus within 30 minutes. The Seoul Climate Card, introduced in 2024, offers unlimited subway, bus, and Ddareungi bike-share rides for 65,000 KRW ($45) per month -- this is unbeatable value for anyone staying longer than two weeks and using transit daily. T-money cards cost 5,000 KRW ($3.45) at any convenience store and can be topped up at subway stations or stores in increments starting from 1,000 KRW.

South Korea consistently ranks first or second globally in internet speed, and Seoul is the epicenter of that infrastructure. Average fixed broadband speeds exceed 200 Mbps download and 180 Mbps upload, with residential fiber plans from KT, SK Broadband, and LG U+ starting at 25,000 KRW ($17) for 100 Mbps and topping out at 55,000 KRW ($38) for 1 Gbps symmetric. Most officetel apartments come with pre-installed fiber connections, and setup is often same-day. Public WiFi blankets the entire subway system, most buses, and all major public buildings under the "Seoul Free WiFi" and "KT Free WiFi Zone" networks -- speeds typically hit 50-100 Mbps even underground. Cafes universally offer free WiFi with no purchase minimums or time limits, making the cafe-hopping nomad lifestyle entirely viable. For mobile data, the three carriers (SKT, KT, LG U+) offer foreigner-friendly SIM/eSIM options: KT's 30-day unlimited data plan costs 65,000 KRW ($45), while budget eSIM providers like Nomad and Saily start from $4 for short trips. For longer stays, registering a local postpaid plan requires an Alien Registration Card (ARC), after which unlimited 5G plans from SKT run about 55,000-80,000 KRW ($38-$55) per month.

South Korea's healthcare system is world-class and remarkably affordable, even for foreigners. The National Health Insurance Service (NHIS) is mandatory for foreigners staying six months or longer on qualifying visas -- monthly premiums average 70,000-120,000 KRW ($48-$83) depending on income level, and the system covers 60-80% of most medical costs. With NHIS, a general practitioner visit costs 10,000-20,000 KRW ($7-$14) out of pocket, specialist consultations run 15,000-30,000 KRW ($10-$21), and prescription medications typically cost 5,000-15,000 KRW ($3.50-$10) at pharmacies. For digital nomads on the F-1-D workcation visa, private travel insurance covering at least 100 million KRW ($69,000) is required for the visa application, and this serves as primary coverage. Walk-in clinics are everywhere -- neighborhoods like Gangnam, Sinchon, and Itaewon have English-speaking clinics specifically catering to foreigners, with Severance International Health Care Center in Sinchon and Samsung Medical Center in Gangnam being the most foreigner-friendly major hospitals. Emergency room visits with NHIS coverage carry a fixed fee of approximately 65,810 KRW ($45) plus co-pays for tests and treatment.

The biggest financial trap for foreigners in Seoul is the jeonse deposit system. Landlords may push jeonse contracts with deposits of 100 million KRW ($69,000) or more, and jeonse fraud -- where landlords default on returning deposits due to hidden mortgages or debt -- has become a documented crisis, with jeonse contracts falling from 59% of the market in 2020 to under 38% in 2025. Never sign a jeonse contract as a digital nomad. Stick to wolse (monthly rent) with the smallest possible deposit, or use Airbnb and serviced apartments for stays under six months. Another common trap: contract renewal scams where landlords pressure tenants into signing a brand-new contract instead of exercising their legal renewal right, which removes the legal cap on deposit increases. Always insist on a renewal (갱신), not a new contract. Banking is another friction point -- opening a Korean bank account as a foreigner requires an Alien Registration Card (ARC), which itself requires a qualifying visa and takes 2-3 weeks to process. During this period, you are limited to cash or international cards, and many local restaurants and smaller shops still only accept Korean cards or cash. Get a Toss or KakaoPay account linked to your bank as soon as possible, as QR payments are replacing cash rapidly.