Aruba's currency is the florin, but the US dollar is also widely accepted. Banks also exchange other foreign currency such as Euros. Traveler's checks are widely accepted and there is normally no charge for using them in hotels, restaurants and stores.

In Aruba, the U.S. Dollar (USD) is widely accepted nearly everywhere, while the Euro is generally not used for daily transactions. The local currency is the Aruban Florin (AWG), which is officially pegged to the U.S. Dollar at a fixed rate of approximately 1.75 AWG to 1 USD. Because of this stability, tourists from the United States rarely need to exchange their money; they can pay for hotels, restaurants, taxis, and souvenirs using USD. Most businesses will quote prices in both currencies, and if you pay in USD, you may receive change in Aruban Florins, which can be a fun souvenir. Major credit and debit cards are also universally accepted across the island. For 2026 travelers from Europe, it is recommended to either use a "no foreign transaction fee" credit card or exchange your Euros for USD before arriving, as trying to use Euros at local shops will result in very poor exchange rates or outright refusal. Aruba's high level of "dollarization" makes it one of the easiest international destinations for Americans to navigate financially without ever visiting a currency exchange booth.