Trying to open a Korean bank account without an ARC or a Korean number?

For a normal online account, KakaoBank limits eligibility to Korean nationals. Toss Bank supports registered foreign residents with accepted residence documents. Short-term visitors do not qualify for either app-based route.

What stops you

Both apps put a Korean ID check (본인인증) in front of signup, and that’s where foreigners split into two groups.

KakaoBank’s normal account is limited to Korean nationals. Its product eligibility and identity-document rules do not provide an account-opening route for foreign nationals. The English site provides information but does not change that eligibility.

Toss Bank is a yes, with rules. A registered foreigner can open online with an 외국인등록증 (ARC), 영주증 (permanent residency card), or 국내거소신고증 (domestic residence card), plus an ID check. The catch is that check: Toss pulls your Korean phone number carrier records, and the name on your SIM must match the name on your ID exactly or it fails.

Can you do it on your own?

Often, yes. If you’re a registered resident, here’s how to do it yourself on Toss:

• Have your ARC, 영주증, or 국내거소신고증 ready.
• Use a smartphone. If you don’t have a Korean number yet, Toss takes an NFC e-passport scan for the check instead.
• Make sure your Korean SIM is registered in the same name as your ID before you start. This is where people fail most.
• Follow Toss’s official English Tossfeed guide. It walks you through the app steps and lists the documents you’ll need.

There is no English app that removes the bank’s eligibility or identity checks. The KakaoBank English site provides information only. Toss’s English guide can explain the process, but you still need accepted residence documents and must complete the bank’s identity checks yourself.

A few things to know even on the Toss way:

• Your new account opens as a 한도제한계좌 (a limited account capped around ₩300,000 a day) until you hand in income or address documents to raise it.
• The whole app is in Korean outside that one guide.
• You’ll want a working Korean line at some point anyway. See prepaid SIM to get the name-matched number that makes the check pass.

When doing it yourself won’t work

Get someone to do it for you (a Korean friend you trust, or Toyoni) when:

• your SIM name doesn’t match your ARC and the 1-won or phone check keeps failing;
• you don’t have an ARC yet and need an account now (some banks, like Woori, open a passport-only account in a branch by appointment, before the card arrives);
• the mobile check won’t pass (a desktop-browser application sometimes clears it when the app won’t);
• you’ve been told to “just use KakaoBank” and need someone to tell you straight that it isn’t open to you, so you don’t waste a week on a dead end.

How Toyoni helps

We provide setup help, not financial advice. We explain the bank’s eligibility and document requirements, help compare the name on your residence card with the name registered to your SIM, and guide the Toss steps. If an in-branch route may be available, we can help arrange the appointment. You submit your own identity documents and complete the bank’s checks yourself. No money passes through Toyoni.