The Monetary Authority of Singapore (MAS) is responsible for most aspects of financial regulation. As the fiscal agent of the Singapore Government, it is responsible for the issue and management of securities on behalf of the Government. MAS monitors specific securities markets such as Government Securities Funds, Treasury Bills, corporate bonds, asset-backed securities, and the repurchase market. It is also the reporting agency for all financial markets and thus collects and distributes a range of market activity data, including benchmark issue prices, turnover, and outstanding issues. The MAS also determines and monitors currency exchange regulations.

The Ministry of Finance oversees taxation. However, MAS records some specific instances of tax incentives for financial instruments (refer to taxation overview for more detail).

The Accounting Standards Council oversees accounting standards, corporate governance and disclosure requirements, while the Singapore Institute of Directors is a self-regulating association, which provides standards and education on corporate governance issues.