Korean currency
In 1902, won was introduced as the official currency unit replacing yang at 1 won = 5 yang. The bank of Korea was established 1909 but soon after in 1910, Imperial Japan annexed Korean Empire. Under Colonial rule, the country was made to use the currency unit "yen" in the name of Korean yen, which took over the Korean won at par. After the division of Korea, the state of South Korea was established and recognized in 1948, and won was again made the official currency of the new state. "jeon" was made the subunit of the currency that divided it into 100 equal parts. Bank of Joseon issued the currency for independent South Korea for the first time that too in banknotes only.
Taxation in North Korea
Officially, there are no taxes in North Korea. The date of 1 April is the North Korean "Tax Abolition Day". North Korean propaganda claims that North Korea is the world's only tax-free country. The North Korean state, however, still collects revenue from its citizens in the form of hidden taxation through various sales taxes. In particular, the turnover tax from consumption provides for the majority of the state revenue in North Korea. The North Korean state does, therefore, collect revenues, which internationally has been compared to a taxation system, but inside North Korea the word tax is not used, and the term for state revenue has been variously translated as "Socialist Income Accounting", "Socialist Economic Management Income", and in similar fashion.