Prices for many items on Guam are generally similar to what you would expect to pay at home. Locally produced goods, foods, and drinks are reasonably priced. But like many remote islands, a lot of goods have to be imported and their prices usually reflect this. ATMs are common in all the urban areas and most places accept credit cards.
Currency and Exchange
The national currency of Guam and the Marshall Islands is the United States dollar, divided into 100 cents. As on the U.S. mainland, coins come in 1, 5, 10, and 25 cent denominations. Bills in common usage come in 1, 5, 10, 20, 50, and 100 dollar denominations.
A sales tax of 11% is added to most goods and services on Guam, and is usually included in the price quoted.
Many restaurants and some hotels automatically add a 10% or 15% service charge to a bill. Locals sometimes add $1 to $2 extra in cash in restaurants, rarely more. For taxi drivers add 10% to the fare. Hotel porters should get $2 to $5, depending on the class of hotel.