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.

The Swiss Franc (CHF) is the official currency of Switzerland and has been in circulation since 1850. It is represented by the ISO 4217 code CHF. The symbol SFr. was previously used but has since been deprecated. The issuance and management of the Swiss Franc are the responsibility of the Swiss National Bank. Currently, there are banknotes in denominations of 10, 20, 50, 100, 200, and 1000 Francs, along with coins in values of 5, 10, 20, 50 cents, and 1, 2, 5 Francs. Switzerland is among the popular travel destinations for Hong Kongers. According to statistics, before the pandemic, approximately 90,000 Hong Kongers traveled to Switzerland each year. The Swiss Franc has also become a popular currency for exchange. Currently, all money changers in Hong Kong facilitate the exchange of Swiss Francs.