Trade Unionist and Socialist Coalition By-elections
| Election | Constituency | Candidate | Vote count | Vote share | Position |
| 5 October 2023 | Rutherglen and Hamilton West | Christopher A Sermanni | 178 | 0.6% | 10th |
| 3 March 2022 | Birmingham, Erdington | Dave Nellist | 360 | 2.1% | 3rd |