This article details the five candidates in each party who raised the most money and lost their primary election. In the 2022 election cycle, 17 of 61 Republican primaries and 12 of 64 Democratic primaries were contested. The losing candidates are shown along with the percentage of the vote they received compared to the primary winner. In cases where the race was pushed to a runoff, vote percentages for both advancing candidates are included.

While campaign finance is not the only factor in electoral outcomes, successful fundraising can provide a candidate with advantages during a campaign. Fundraising can also indicate party momentum.