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KakaoBank is an online-only bank that lets people in South Korea manage money, borrow, and invest entirely through a phone app.
KakaoBank is South Korea's biggest internet-only bank. It has no branches and almost no tellers — everything happens in a smartphone app, and most customers find it through KakaoTalk, the messaging app that nearly everyone in the country already has on their phone. You can open an account in minutes, move money, get a debit card, take out a loan, or buy a few shares, all without ever visiting a building.
The bank makes money the way banks usually do: it pays savers a little interest, lends money out at a higher rate, and keeps the gap. Its biggest lending products are credit loans and mortgages, plus loans to people with less-than-perfect credit that it sells through a partner. It also earns fees from debit cards and from acting as the rails for things like overseas remittances and a stock-trading app. Because it runs on software instead of branches, its costs are low, and that low cost is the main reason it can offer better rates and faster service than a traditional bank. That simplicity is also the point. KakaoBank's edge comes from being glued to an app people already open dozens of times a day, and from a user base that skews young. Its rivals are the big old banks like KB Financial Group, Shinhan Financial Group, Hana Financial Group and Woori Financial Group, plus other internet banks such as K bank. Traditional banks still hold most of the country's deposits, so KakaoBank's fight is about gradually pulling customers and their money away from the branch-and-teller world.
There are real risks. Lending is the core of the business, so when interest rates rise or borrowers struggle to repay, profits can wobble — it has had to set aside more money to cover bad loans as rates climbed. Its growth also depends on regulators letting an internet bank sell more kinds of products, and it has been expanding into areas like overseas remittance and investing to keep growing. It is listed on the Korea Exchange under ticker 323410 — you can find it by that code, but its customers just call it KakaoBank.
Saved answer · last researched 6 Nov 2026