Updated: 24 June 2025
| Date | Location |
|---|---|
| 5th June 2025 | Scottish Parliamentary by-election - Hamilton, Larkhall and Stonehouse |
| 1st May 2025 | Westminster by-election in Runcorn and Helsby |
| 15th and 29th February 2024 | Westminster by-elections in England - Kingswood, Wellingborough and Rochdale |
| 5th and 19th October 2023 | Parliamentary by-elections in Rutherglen & Hamilton West, Mid-Bedfordshire and Tamworth |
| 20th July 2023 | Parliamentary by-elections in Uxbridge & South Ruislip, Selby & Ainsty and Somerton & Frome |
| 15th December 2022 | By-election Guidance, Stretford and Urmston |
| 1st December 2022 | Parliamentary By-election in City of Chester constituency |