The national currency is the Brunei dollar, identified internationally as BND. Brunei Darussalam Central Bank explains that the currency is pegged at parity to the Singapore dollar. Under the Currency Interchangeability Agreement, the two central banks and licensed banks exchange each other’s currency at equal value without an exchange charge. [1] [2]
Brunei dollar
Currency settings
That arrangement does not require every retailer to accept the other country’s notes. BDCB describes the partner currency as customary tender, with acceptance left to businesses. For an online account, read the supported-currency list literally and compare the amount leaving the bank with the amount credited. A one-to-one currency relationship does not by itself remove a payment service’s fees. [2]