Singapore operates exclusively on the Singapore Dollar, abbreviated SGD and represented by the symbol S$. The Monetary Authority of Singapore issues banknotes in denominations of S$2, S$5, S$10, S$50, S$100, S$1000, and S$10000, though notes above S$1000 were withdrawn from circulation in 2014 to combat money laundering while remaining legal tender. Coins circulate in values of 5, 10, 20, and 50 cents, plus S$1. The currency is pegged to an undisclosed trade-weighted basket of currencies, a policy the Monetary Authority of Singapore has maintained since 1981 to manage inflation and stabilize economic growth. The Singapore Dollar trades freely on international markets and typically ranges between 1.25 and 1.40 SGD per United States Dollar, though these rates fluctuate based on global economic conditions.
Currency exchange operates through authorized money changers concentrated in Raffles Place, People's Park Complex, Mustafa Centre in Little India, and The Arcade on Raffles Place. Licensed money changers display their rates publicly and typically offer better conversion rates than banks or hotel counters. Banks including DBS Bank, United Overseas Bank, and OCBC Bank provide currency exchange during business hours Monday through Friday from 0930 to 1600 or 1630 hours, with some branches operating Saturday mornings. Changi Airport houses multiple money changers in all four terminals operating 24 hours daily, though their rates typically include a premium of 2 to 5 percent above mid-city rates. The exchange rate difference between airport services and city money changers on a transaction of S$500 often exceeds S$15 to S$25.
ATMs blanket Singapore with over 2700 machines operated by major banks and international networks. Machines accept Visa, Mastercard, American Express, China UnionPay, and cards bearing Cirrus or Plus network logos. Daily withdrawal limits on foreign cards default to S$2000 at most terminals, though individual banks may impose lower limits. Network Plus ATMs charge a flat fee typically between S$5 and S$8 per withdrawal, while home bank foreign transaction fees range from 1 to 3 percent of the withdrawn amount. OCBC Bank, DBS Bank, and UOB machines populate MRT stations, shopping centers, and 7-Eleven convenience stores. Standalone bank branches cluster in the Central Business District around Raffles Place and Shenton Way. Singapore has no ATM-specific safety concerns requiring special precautions beyond standard card security practices.
Credit cards achieve near-universal acceptance at hotels, restaurants, shopping centers, attractions, and chain stores throughout Singapore. Visa and Mastercard function everywhere cards are accepted, while American Express faces occasional rejection at smaller merchants due to higher processing fees. China UnionPay acceptance expanded significantly after 2010, now functioning at most major retailers and hotels. Hawker centers and individual hawker stalls remain primarily cash operations, though the government's unified SGQR payment system installation program brought QR code payment acceptance to thousands of hawker stalls between 2018 and 2023. Wet markets, mama shops (small neighborhood provision stores), and some independent restaurants in residential areas outside central tourist districts still require cash. Credit card surcharges are prohibited in Singapore under the Code of Consumer Protection, meaning merchants cannot add fees for card payments.
Mobile payment adoption in Singapore reached 87 percent of the population by 2023, making it one of the highest rates globally. PayNow, launched by the Association of Banks in Singapore in 2017, enables instant bank transfers using only a mobile number or national identity number, operating through participating banks' mobile applications. GrabPay, linked to the Grab ride-hailing platform, functions at over 150000 merchants including hawker centers, taxis, and retail stores. PayLah by DBS Bank connects directly to bank accounts for peer-to-peer transfers and merchant payments. The SGQR unified QR code standard, implemented nationwide in 2020, consolidates multiple payment systems into a single QR code that merchants display, accepting PayNow, GrabPay, and 15 other e-wallet systems simultaneously. Foreign visitors can activate PayNow only with a Singapore bank account and local mobile number, limiting its utility for short-term travelers.
Mobile connectivity in Singapore operates across three primary providers: Singtel, StarHub, and M1. Singtel maintains the largest network infrastructure, established in 1879 as the Singapore Telephone Board before privatization in 1992. All three carriers provide nationwide 5G coverage in Singapore's urban areas, with 4G coverage extending to 100 percent of the country including Sentosa Island and Pulau Ubin. Prepaid SIM cards for tourists require passport presentation at purchase locations including Changi Airport, 7-Eleven stores, Cheers convenience stores, and carrier retail outlets. Singtel's hi Tourist SIM costs S$15 for 100GB of data valid seven days, S$25 for 100GB valid 15 days, or S$38 for 100GB valid 30 days, with unlimited local calls included in all packages. StarHub's Happy Prepaid tourist packages offer 50GB for S$15 valid seven days or 100GB for S$30 valid 30 days. M1's tourist SIM provides 100GB for S$18 valid 15 days or 100GB for S$28 valid 30 days.
SIM card activation requires registration under Singapore's national telecommunications regulations enacted in 2001 and tightened in 2011. Retailers scan the purchaser's passport and record details digitally, transmitting information to the carrier's database immediately. Activation completes within 10 to 30 minutes for most purchases. Changi Airport stores in all four terminals operate 24 hours, enabling immediate SIM acquisition upon arrival. Downtown retail outlets cluster around Orchard Road, Marina Bay, and Bugis Junction. Physical SIM cards remain standard, though eSIM adoption began expanding in 2023 with Singtel and M1 offering eSIM tourist packages activated by scanning QR codes, eliminating the need for physical card swapping.
Public WiFi coverage in Singapore ranks among the world's densest networks through the Wireless@SG program, a government initiative launched in 2006. Over 10000 hotspots operate across the island at shopping malls, libraries, community centers, hawker centers, and public parks. Access requires one-time registration with a mobile number receiving an SMS verification code, after which automatic connection occurs at any Wireless@SG location. Connection speed typically ranges from 2 to 5 Mbps, sufficient for messaging and basic browsing but inadequate for video streaming or large file transfers. All MRT stations and newer buses provide free WiFi without registration requirements, though connection duration in transit often proves too brief for sustained use.
Commercial WiFi at hotels, restaurants, and cafes typically surpasses public network speeds significantly. Four and five-star hotels provide in-room WiFi reaching 50 to 100 Mbps as standard, while budget hotels and hostels offer speeds between 10 and 30 Mbps. Starbucks, McDonald's, and major chain restaurants provide free guest WiFi with speeds averaging 10 to 20 Mbps after clicking through acceptance screens. Independent cafes in neighborhoods like Tiong Bahru, Kampong Glam, and Katong often display WiFi passwords prominently for customer use. Libraries operated by the National Library Board offer free WiFi at 28 locations island-wide, requiring only acceptance of terms of use without registration.
Banking for visitors centers on international banks maintaining Singapore branches. Citibank, HSBC, Standard Chartered, and Maybank operate extensively with ATMs accepting international cards. Opening a full bank account as a tourist remains theoretically possible but practically difficult, requiring proof of Singapore address, employment pass, or student visa for most banks. Minimum initial deposits for foreigners range from S$1000 to S$3000 depending on account type. DBS Bank, Singapore's largest with assets exceeding S$500 billion as of 2023, requires employment pass or student pass for non-residents opening savings accounts. OCBC Bank maintains similar policies. Processing takes three to ten business days, making account opening impractical for tourist visits under 30 days.