Singapore Dollar (SGD)

The official currency of Singapore, used as the medium of exchange for transactions within the country

Author: George Lee
George Lee
George Lee
Currently a student pursuing a Bachelor's Degree in Business Administration at the National University of Singapore (NUS). Passionate about finance and all things markets, and have experience in M&A and public equities.
Reviewed By: Himanshu Singh
Himanshu Singh
Himanshu Singh
Investment Banking | Private Equity

Prior to joining UBS as an Investment Banker, Himanshu worked as an Investment Associate for Exin Capital Partners Limited, participating in all aspects of the investment process, including identifying new investment opportunities, detailed due diligence, financial modeling & LBO valuation and presenting investment recommendations internally.

Himanshu holds an MBA in Finance from the Indian Institute of Management and a Bachelor of Engineering from Netaji Subhas Institute of Technology.

Last Updated:November 27, 2023

What Is the Singapore Dollar (SGD)?

The Singapore dollar, also known as the "Sing dollar" for short, or SGD when abbreviated is the sole official currency used in the Republic of Singapore, a sovereign island located in Southeast Asia. It is also denominated with the $ sign and is known as S$ globally.

It is accepted across the island for all kinds of goods and services. It comes from notes and coins, with one dollar divided into a hundred cents. 

An interesting fact about the Sing dollar—something that even many Singaporeans are not aware of—is that it is also customary tender in Brunei and a 1:1 equivalent to the Brunei dollar. 

Similarly, the Brunei dollar is also accepted as customary tender in Singapore. However, one would not see much of either scenario because not many people are aware of such an arrangement, which is infrequent in Brunei and Singapore.

The term "Singapore dollar" has changed drastically and evolved over the years, and we will cover that in a later section.

Interesting Facts:

  • Did you know blind and visually handicapped users can tell the note's denomination by touch? Each note has a braille pattern printed in heavy intaglio ink at the top right corner on the front side.
  • The $2, $5, and $10 notes issued are made of a type of plastic and have 16 different security features.
  • The size of notes increases with the denomination, with $2 notes being the smallest ($1 notes are no longer in circulation).
  • The largest legally tender denomination is $10,000. However, since 2014, it is no longer in circulation to better combat money laundering.

Key Takeaways

  • The Singapore Dollar (SGD) is the official currency used in the Republic of Singapore, Southeast Asia.

  • The SGD is denominated with the $ sign and divided into 100 cents, used for goods and services across the island.

  • The SGD is equivalent to the Brunei dollar at a 1:1 ratio, serving as customary tender in both Singapore and Brunei.

  • The currency's history involves various changes from the silver dollar to the Malayan dollar and the modern Singapore dollar.

  • The Monetary Authority of Singapore (MAS) uses the exchange rate, particularly the SGD Nominal Effective Exchange Rate (S$NEER), as a primary policy tool for economic stability.

A Brief History of Singapore Dollar

The first type of "currency" used in Singapore were coins from different countries worldwide traded with Singapore throughout history. The main coin was the "silver dollar."

From 1845 to 1939, the East India Company, and later, the Colonial Office in London, issued and approved the use of Strait Dollars (in the form of copper coins) for the Straits Settlements, which consisted of Singapore and other settlements like Penang and Malacca.

The Malayan dollar then replaced it in 1939 up until 1953, succeeded by the Malaya and British Borneo dollar. Between 1942 and 1945, Singapore was under Japanese occupation, and "banana notes" were introduced.

Due to hyperinflation brought upon by the rampant printing of "banana notes" coupled with uncontrolled counterfeiting due to the lack of serial numbers, the Japanese currency was rendered worthless when they ceded control of Singapore to the British.

The Malayan dollar was reintroduced after the British took over from the Japanese until 1954 when several nations came together to issue and authorize the use of the Malaya and British Borneo dollar. These nations included:

  • Singapore
  • The Federation of Malaya
  • Brunei
  • Sabah
  • Sarawak

It was only in 1967 that Singapore, Malaysia, and Brunei each had their national currencies. The three countries utilized a system of free interchangeability of their coins to facilitate economic and trade relations, which took effect on 12th June 1967. 

This arrangement was terminated in 1973 when Malaysia opted out, but Brunei and Singapore decided to continue with the interchangeability arrangement, which exists until today, where 1 SGD = 1 BND. To learn more about this arrangement, click here.

Singapore dollar notes and coins were issued by the Board of Commissioners of Currency, Singapore, until 2002, when it merged with the central bank, the Monetary Authority of Singapore (MAS). 

MAS was formed on 1st January 1971 after passing the Monetary Authority of Singapore Act in 1970, created to regulate better and govern the banking and finance scene locally. Since then, Singapore's currency has been controlled and issued by MAS.

Coins And Notes
Above is an example of Singapore dollar coins and notes, source. Take note that the coins shown are from the Second Series, which the Third Series has succeeded since 2013. To find out more about the history of the collections of notes, click here, and for coins, click here

Below is a complete list of the denominations of notes and coins that can be seen in 2022:

Singapore Dollar Notes

  • $2
  • $5
  • $10
  • $50
  • $100 (Not as frequently used)
  • $1,000 (Legal tender, though discontinued since Jan 2021)
  • $10,000 (Legal tender, though discontinued since 2014)

Example of a 10,000 SGD note from the MAS website

You can also learn more about the currency's history in Singapore here.

Singapore Dollar Coins

  • One cent (0.01) (Legal tender, though discontinued since 2002. It is highly unlikely to see it being used in public).
  • Five cents ($0.05), uncommon to be used or seen in public as prices are usually denominated in $0.10, at minimum.
  • 10 cents ($0.10)
  • 20 cents ($0.20)
  • 50 cents ($0.50)
  • $1 (100 cents)

There are legal tender coins of a larger denomination, but the MAS does not issue them for widespread use. Like most other countries, it's in the form of gold/silver coins that have a more significant legal face value. You can check them out here.

2022 Singapore Lunar Tiger 1/4 Troy Oz 999.9 Fine Gold Proof Coin
Example of a 2022 Singapore Lunar Tiger 1/4 troy oz 999.9 Fine Gold Proof Coin, source

SGD In Forex

Unlike most central banks that target the interest rate, the MAS uses the exchange rate as its primary policy tool.

This refers to the S$NEER (Singapore Dollar Nominal Effective Exchange Rate), which is the exchange rate of the Singapore dollar against a trade-weighted basket of currencies from Singapore's major trading partners.

Through a trade-weighted exchange rate — where the currencies of Singapore's largest trading partners bear a more significant weight — the country's diverse trading patterns can be better represented in contrast to a bilateral exchange rate between the SGD and a foreign currency.

The exchange rate is kept within an undisclosed range, though it tends upward sloping over time. MAS makes changes to the exchange rate depending on economic conditions. They will buy/sell foreign currency to keep it within the range.

In addition to the above, the basket of currencies is reviewed and adjusted periodically depending on Singapore's import/export situation with its partners.

The SGD also trades with many major global currencies, such as the USD and EUR, and, as of 2019, it is the 13th most traded currency in the world, accounting for close to 2% of global forex trading volume.

Below is a table of the estimated exchange rates of the SGD against ten major global currencies:

Estimated exchange rates of the SGD against ten major global currencies

Base Currency Currency Pair (/SGD) Rate (As of 13th July 22)

US Dollar (US$)


Euro EUR (€)


Japanese Yen JPY (¥)


British Pounds GBP (£) 


Australian dollars AUD (A$)


Canadian dollars CAD (C$)


Swiss Francs CHF (Fr)


Chinese Renminbi (Yuan) CNY (元) 


Swedish Krona SEK (kr) 


New Zealand Dollars NZD (NZ$)


Researched and authored by George Lee | LinkedIn

Reviewed and edited by Justin Prager-Shulga | LinkedIn

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