Banking in South Korea as an American: from limited account to fully banked

Yes, you can open a Korean bank account with a US passport and an Alien Registration Card. Just expect your first account to come with low daily limits until you prove why you need it.

The short version

• Bring your Alien Registration Card (ARC), your passport and a document that proves the purpose of the account, such as an employment contract or payslips [1].
• Without that proof you'll get a "limited account" (hando jehan gyejwa). The daily caps are as low as KRW 1 million (about USD 750) at an ATM or online, and even lower at some app banks [1][2].
• South Korea has a FATCA agreement with the US, so Korean banks ask about US status and report US persons' accounts to the IRS [3].
• Since January 2026, individuals can send up to USD 100,000 a year abroad without paperwork, through any bank, not just one "designated" bank [4].
• Korean accounts count toward your FBAR (over USD 10,000 combined) and Form 8938 thresholds [5].

USD conversions use the Federal Reserve H.10 rate of October 30, 2026 (USD 1 = KRW 1,333.99) [6].

What you need before you walk into a branch

Back home, a driver's license and a Social Security number get you a checking account in 20 minutes. In Korea, the bank wants to know who you are, where you live and why you need the account. The rules come from a Korean law against phone and voice-phishing fraud, which made banks ask every new customer, Korean or foreign, for proof of the account's purpose [1].

The checklist, based on KOTRA's August 2024 guide for foreigners [1]:

Before your ARC arrives

You can sometimes open an account on your passport alone, but you need proof that you live in Korea, such as an employment certificate showing your address, a utility bill or, at some branches, a hotel voucher. A company address only counts if you actually live there, like a company dorm [1]. Ask the branch before you go, since practice varies. Most Americans find it easier to wait for the ARC; see our guide to the alien registration card in Korea.

The limited account: training wheels for newcomers

If you can't show proof of purpose, the bank opens a restricted account. KOTRA lists these daily limits [1]:

App-only banks can be stricter. Toss Bank, which lets foreigners with an ARC open an account entirely in its app, starts new foreign customers at a KRW 300,000 (about USD 225) daily transfer cap. Once you upload documents and the bank approves them, usually within two or three business days, the limit rises to KRW 50 million (about USD 37,500) a day, with KRW 10 million (about USD 7,500) per transfer [2]. Toss says most traditional banks want you at a branch to lift the limit, and approval is up to the branch [2].

How to get off the limited account:

1. Wait for your first payslip or ask HR for an employment certificate (jaejik jeungmyeongseo).
2. Take it, your ARC and your passport to the branch that opened the account.
3. Ask to lift the limit ("hando haeje"). Some branches do it on the spot; others take a few days.
4. Set up your app login and digital certificate once the limit is lifted.

One more heads-up: one limited account per person at each bank is the rule [1], so don't open accounts at three banks hoping one will be looser.

Which bank?

The big four commercial banks (KB Kookmin, Shinhan, Woori and Hana) all serve foreign residents, and many Seoul employers pay salaries through one of them. Ask HR which bank your company uses; the branch near your office has probably opened accounts for foreign hires before. Toss Bank is the app-first option [2]. Foreigners generally get savings accounts, debit cards and transfers, but unsecured credit lines and loans are usually off the table at first [2].

FATCA: yes, they'll ask

South Korea signed a Model 1 intergovernmental agreement with the US under FATCA (the Foreign Account Tax Compliance Act). The Treasury Department lists it as in force since September 8, 2016 [3]. Under a Model 1 deal, Korean banks report US persons' accounts to Korea's tax authority, which passes the data to the IRS.

What that looks like at the counter:

• A self-certification form. You'll declare your tax residence and citizenship. US citizens give their Social Security number. KOTRA notes that tax-reporting forms ask for your overseas taxpayer number and overseas address [1].
• A US birthplace or US address in your file is enough to flag you as a possible US person.
• Reporting is routine. Your balance and income go to the IRS each year. It doesn't mean you did anything wrong.

Have your Social Security number memorized or written down before you go. If you never had one, fix that first, because it's very hard to bank anywhere as an American without it.

Your own US filings

The bank's report doesn't replace yours. Uncle Sam still wants [5]:

• The FBAR (FinCEN Form 114) if your foreign accounts together top USD 10,000 at any point in the calendar year. File it online through FinCEN's BSA E-Filing System by April 15, with an automatic extension to October 15.
• Form 8938 with your tax return if you live abroad and your foreign financial assets exceed USD 200,000 on the last day of the year or USD 300,000 at any time (single or married filing separately), or USD 400,000 and USD 600,000 (married filing jointly).

Korean pension and investment products can bring extra US reporting, so a US expat tax preparer can check your situation before you buy anything beyond a plain deposit account.

Moving money between Korea and the US

Korea's foreign exchange rules used to make you pick one "designated bank" for overseas transfers above small amounts. That changed. Starting in January 2026, the no-documentation limit is USD 100,000 a year across all types of financial institutions, the designated-bank rule is gone, and a new integrated system tracks remittances in real time [4]. Above that, expect the bank to ask for supporting documents, such as proof that the money is your salary.

Your options:

1. Overseas remittance from your Korean bank. Fees vary. Kbank, for example, announced a KRW 4,000 (about USD 3) charge for SWIFT and ACH transfers from January 1 to June 30, 2026 [4]. Check current pricing before you send.
2. Online money-transfer services. Popular for smaller amounts. Most need a Korean account with the limit lifted.
3. A wire from your US bank. Reliable for big one-off moves, like your housing deposit, but you'll pay fees on both ends plus an exchange spread.
4. Your US debit card at Korean ATMs. Handy in week one. Look for ATMs marked "Global" or "Foreign card," and check your US bank's foreign ATM fees.

If you're saving for a big Seoul rental deposit, plan the transfer weeks ahead and keep the paper trail. Deposits here can run to tens of thousands of dollars.

Your first month, step by step

1. Before leaving the States, tell your US bank you're moving and keep a US mailing address it accepts.
2. Get a Korean phone number in your name.
3. Apply for your ARC at your immigration appointment.
4. Open an account with your passport, ARC and employment documents, and fill out the FATCA form.
5. Lift the account limit as soon as you have proof of salary.
6. Set up app banking and your digital certificate.
7. Put April 15 (FBAR) and June 15 (the automatic extension for Americans abroad) on your calendar.

Want to hear which branch opened accounts fast for someone last month? Ask in our community group for Americans in South Korea.

Sources

1. KOTRA Invest Korea Ombudsman: How foreigners can open a bank account in Korea (August 2024, PDF)
2. Toss Feed: How to open a bank account in Korea as a foreigner (April 2026)
3. US Department of the Treasury: Foreign Account Tax Compliance Act
4. The Korea Times: Overseas remittance rule overhaul intensifies competition among banks (December 2025)
5. IRS: Comparison of Form 8938 and FBAR requirements
6. Federal Reserve: H.10 foreign exchange rates

Keep reading

• Alien registration card in Korea
• South Korean taxes for Americans: how they fit with your US return
• FBAR: reporting your foreign bank accounts
• Sending money between the US and abroad