In the case of exchange less than US$20,000 or equivalent for each person at the same branch and on the same day. Passport or Alien Registration Card, etc. In the case of exchange exceeding US$20,000 or equivalent for each person at the same branch and on the same day. Passport or Alien Registration Card, etc. An Application for Sale/Deposit in Accounts/Withdrawal (Bank Form) Declaration of Foreign Exchange In the case of exchange exceeding US$20,000 or equivalent for each person at the same branch and on the same day without Declaration of Foreign Exchange, you may need a Declaration Document of trading of the means of foreign payment issued by the Bank of Korea.