Elections in Singapore comprise two types: parliamentary and presidential elections. Under the Constitution of Singapore, a general election must be held within three months of the dissolution of Parliament, which has a maximum term of five years from the date of its first sitting. Presidential elections are held every six years. All elections in Singapore operate under the first-past-the-post voting (FPTP) system.
Singapore employs an official sample count system to provide early indications of election outcomes. At each polling station, a counting assistant randomly selects 100 ballots, which are then tallied to produce a mini-sample. These samples are aggregated and weighted according to the number of votes cast at each station to generate constituency-level projections. Based on simple random sampling, the estimates typically achieve a 95% confidence level with a margin of error of 4–5%. This system is designed to offer a statistically reliable and timely snapshot of the likely results shortly after the close of polls. In contrast, countries such as the United States, United Kingdom and Australia rely on the progressive counting and real-time reporting of actual vote returns from precincts or count centres. While this approach offers greater transparency at a granular level, it generally results in slower reporting compared to Singapore's sample-based method.
