The local currency is the riel, however in Phnom Penh and most major tourist destinations, almost all goods and services are calculated and paid for in American currency. The rate of exchange is approximately 4,071 riel to USD 1 (1 June 2016).

Credit cards, traveller’s cheques and currencies other than USD are accepted only at a few places such as major hotels, at some foreigner-owned restaurants and at some souvenir shops. It is best to carry USD in small denominations. ATM machines are offered by ANZ Royal Bank, Cambodian Public Bank, SBC Bank and Canadia Bank. ATMs accept all major credit cards and can be found at various places in Phnom Penh, Siem Reap, Battambang and Sihanoukville.