The United States Dollar (USD) is the official currency of the United States, first issued in 1792. It is identified by the ISO 4217 code USD and is commonly represented by the symbol $. The authority for issuing US dollars lies with the United States Department of the Treasury. Currently, circulating US dollar banknotes include denominations of 1, 2, 5, 10, 20, 50, and 100 dollars, along with coins in denominations of 1, 5, 10, 25, 50 cents, and 1 dollar. The U.S. Dollar ranks first globally in terms of trading volume, comprising 88.3% of the total global foreign exchange transactions. Local money changers in Hong Kong all offer the buying and selling of U.S. Dollars.

人民幣是中國的通用貨幣，自1948年開始發行。ISO4217標準代號為CNY，通常用符號¥或者CN¥來表示。由中國的中國人民銀行（People's Bank of China）負責發行和管理。目前流通的人民幣紙鈔面額有1、5、10、20、50、100元，另有1元、5角、1角的硬幣。人民幣的交易量位居全球第八位。隨著近年人民幣匯率下跌，兌換人民幣北上消費的香港市民明顯增加。目前本港所有找換店均可買賣人民幣，部分找換店更提供人民幣匯款、電子錢包增值等服務。