The New Taiwan dollar (新臺幣 or 新台幣) (currency code TWD and common abbreviation NT$), or simply Taiwan dollar, is the official currency of the Republic of China (Taiwan) since 2000, although it has been in circulation since 1949. Originally issued by the Bank of Taiwan, it is now issued by the Central Bank of China.he New Taiwan dollar (新臺幣 or 新台幣) (currency code TWD and common abbreviation NT$), or simply Taiwan dollar, is the official currency of the Republic of China (Taiwan) since 2000, although it has been in circulation since 1949. Originally issued by the Bank of Taiwan, it is now issued by the Central Bank of China.