Banking in South Korea is much like in the West. You can use your Korean bank card for withdrawing small amounts, however there are limits on the amount you can withdraw and making large withdrawals should be done in person at your local branch.
If the bank card from your home bank has the Cirrus or Plus logos on the back you’ll be able to withdraw money from most Korean cash machines.
Banks based in Seoul include:
The main foreign banks present in Seoul are: