This article details the five most expensive contested general elections in the State Senate.

In Florida politics, state-level candidates and PACs raised $532.2 million between Jan. 1, 2021, and Feb. 28, 2022. More than $110.7 million or 20.8 percent of all donations was raised by the 10 individuals at the top of the list. 

Campaign finance requirements govern the raising and spending of money for political campaigns. While not the only factor in an election’s outcome, successful fundraising can provide a candidate with advantages, such as the ability to boost name recognition and promote a message. In addition, fundraising can indicate enthusiasm for candidates and parties.