15 years of the Backbench Business Committee
The Backbench Business Committee was created in 2010 to schedule business in the House of Commons proposed by backbench MPs.
Documents to download
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MPs' changes of party allegiance in the House of Commons since 1979 (110 KB , Excel Spreadsheet)
Is there a by-election if an MP changes Party?
No, by-elections are not automatically triggered if an MP changes his or her party affiliation although an MP may choose to stand down and fight the ensuing by-election under a new party label or as an independent Member.
Role of the Whips Office
Information on the role of the Government and Opposition whips in the management of parliamentary business can be found in the Commons Library briefing on the Whips’ Office.
Parliament: facts and figures
This series of publications contains data on various subjects relating to Parliament and Government. Topics include legislation, MPs, select committees, debates, divisions and Parliamentary procedure.
Feedback
Due to the difficulties in compiling a comprehensive list of all floor-crossings, whip withdrawals and whip resignations, this list cannot be guaranteed to be definitive.
We are always happy to hear of any additions or amendments to the list. Please email papers@parliament.uk with any comments.
We also welcome suggestions for new lists.
Documents to download
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MPs' changes of party allegiance in the House of Commons since 1979 (110 KB , Excel Spreadsheet)
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The next elections bill?
The government proposes reducing the voting age to 16, reviewing voter ID, improving voter registration and strengthening political donation rules.
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Debate on Register of Interests of Members’ Staff
On 16 July 2025, MPs will debate expanding the scope of the Register of Interests of Members’ Staff to include all MPs’ staff with access to the parliamentary network, rather just staff with parliamentary passes.
