A Guide to Taxpayer Numbers for Expats Opening a Bank Account in Korea

Tax Identification Numbers Around the World

As an expat, opening a bank account in a foreign country can seem daunting, but it is a crucial step in managing your finances while living abroad. In Korea, one of the key requirements for opening a bank account is obtaining a Korean Tax Identification Number (TIN), also known as a Resident Registration Number (RRN).

[List of Taxpayer Numbers]
CountryCountry CodeTIN AutomaticTaxpayer Number NameTaxpayer Number Structure
South AfricaZAYesTax Identification Number10 digits, starting with 0, 1, 2, 3 or 9 (e.g. 0123456789). Can be found on all taxpayer-related correspondence.
New ZealandNZYesIRD Number8-9 digit numbers (e.g. 99999999/999999999). Printed on all tax returns and notices.
United KingdomGBYesNational Insurance Number (NINO) or Unique Taxpayer Reference (UTR)NINO: 9 digits, consisting of 2 letters, 6 digits, and 1 letter (e.g. AA999999A). UTR: 10 digits, found on the first page of tax returns.
IrelandIEYesPPSN(Personal Public Service Number)8-9 digit numbers and letters (e.g. 1234567T/1497955KA).
United StatesUSYesSocial Security Number (SSN) or Individual Taxpayer Identification Number (ITIN)SSN: 9 digits (xxx-xx-xxxx). EIN: 9 digits (xx-xxxxxxx). ITIN: 9 digits (9xx-xx-xxxx).
CanadaCAYesSocial Insurance Number (SIN)9 digits (e.g. 999 999 999). Found on the top right of individual income tax returns.
AustraliaAUYesTax File Number (TFN) or Australian Business Number (ABN)TFN (for individuals): 8-9 digits (e.g. XXX XXX XXX). ABN (for businesses): 11 digits (e.g. XX XXX XXX XXX).