The country's unit of currency is the Singapore dollar (S$), locally referred to as the 'singdollar', which is made up of 100 cents. Singapore uses 5¢, 10¢, 20¢, 50¢ and S$1 coins, while notes come in denominations of S$2, S$5, S$10, S$50, S$100, S$500 and S$1000. The Singapore dollar is a highly stable and freely convertible currency.
ATMs and moneychangers are widely available. Credit cards are accepted in most shops and restaurants.
Generally speaking, tipping is not customary in Singapore. Tipping at Changi Airport is prohibited.
Restaurants Many add a 10% service charge, in which case tipping is discouraged. That said, a small tip is greatly appreciated when a staff member has gone out of their way to help you. Do not tip at hawker centres and food courts.
Hotels Unnecessary at budget places. At higher-end establishments, consider tipping porters around S$2 to S$5 for helping you with your bags and housekeeping S$2 for cleaning your room.
Taxis Not expected, although it's courteous to round up or tell the driver to keep the change.