General elections in Singapore must be held within three months after five years have elapsed from the date of the first sitting of a particular Parliament of Singapore, as per the Constitution. However, Parliament can also be dissolved and a general election called at the behest of the Prime Minister before the five-year period elapses. The number of constituencies or electoral divisions is not permanently fixed by law, but is declared by the Prime Minister prior to each general election pursuant to the Parliamentary Elections Act, which governs the conduct of elections to Parliament, taking into account recommendations of the Electoral Boundaries Review Committee.

The Parliament of Singapore is the unicameral legislature of the Republic of Singapore, which governs the country alongside the president of Singapore. Largely based upon the Westminster system, the Parliament is made up of Members of Parliament (MPs) who are elected, as well as Non-constituency Members of Parliament (NCMPs) and Nominated Members of Parliament (NMPs) who are appointed. Following the 2020 general election, 93 MPs and two NCMPs from three political parties were elected to the 14th Parliament. Throughout the sitting of Parliament, nine NMPs are usually appointed by the president on a biennial basis.