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.

While the official currency of Aruba is the Aruban Florin (AWG) and the U.S. Dollar (USD) is widely accepted everywhere, you generally cannot pay directly with the Euro in local shops, restaurants, or taxis. Aruba is part of the Kingdom of the Netherlands, but it has its own autonomous currency system. If you bring Euros to the island, you will need to visit a local bank or a currency exchange bureau (cambio) to convert them into Florins or U.S. Dollars. Most banks in Oranjestad or the high-rise hotel area will happily perform this exchange, though you should bring your passport for identification. For the best experience, it is highly recommended to use a credit or debit card, as Visa and Mastercard are accepted at nearly every establishment on the island. If you prefer cash, U.S. Dollars are the "de facto" second currency; prices are often listed in both Florins and Dollars, and you will usually receive change in Florins if the merchant doesn't have enough USD on hand. Using Euros directly is likely to be met with a polite refusal, as most local cash registers are not set up to handle the exchange rate for the European currency.