South Korea has made the decision to end coins as legal tender by 2020. So if you conduct an all cash transaction you must forego any change in amounts of less than the value of the smallest banknote, ₩1000, or slightly less than US$1. This change will undoubtedly greatly increase the number of electronic transactions in the country, but the wide circulation of the ₩50,000 bill, the largest denomination banknote, will mean that citizens can still easily use cash as a convenient store of value.