Change of Party Allegiances by MPs from 1979 until 2024
Data published by the House of Commons in June 2024.
| Parliament | Date | Member | Whip | Constituency | Party (before) | Party (after) |
Notes |
| 1979-1983 | 01/11/1979 | Gerry Fitt | Resigned | Belfast West | SDLP | Ind Socialist | Dispute with party over talks process |
| 1979-1983 | 20/02/1981 | Tom Ellis | Resigned | Wrexham | Lab | SDP | Resigned Whip prior to launch of new party, joined on 2 March |
| 1979-1983 | 20/02/1981 | Richard Crawshaw | Resigned | Liverpool Toxteth | Lab | SDP | Resigned Whip prior to launch of new party, joined on 2 March |
| 1979-1983 | 02/03/1981 | Tom Bradley | Resigned | Leicester East | Lab | SDP | |
| 1979-1983 | 02/03/1981 | John Cartwright | Resigned | Woolwich East | Lab | SDP | Re-elected for same seat at 1983 GE |
| 1979-1983 | 02/03/1981 | John Horam | Resigned | Gateshead West | Lab | SDP | |
| 1979-1983 | 02/03/1981 | Robert Maclennan | Resigned | Caithness & Sutherland | Lab | SDP | |
| 1979-1983 | 02/03/1981 | John Roper | Resigned | Farnworth | Lab | SDP | |
| 1979-1983 | 02/03/1981 | David Owen | Resigned | Plymouth, Devonport | Lab | SDP | Re-elected for same seat at 1983 GE |
| 1979-1983 | 02/03/1981 | William Rodgers | Resigned | Stockton | Lab | SDP | |
| 1979-1983 | 02/03/1981 | Neville Sandelson | Resigned | Hayes & Harlington | Lab | SDP | |
| 1979-1983 | 02/03/1981 | Mike Thomas | Resigned | Newcastle East | Lab | SDP | |
| 1979-1983 | 02/03/1981 | Ian Wrigglesworth | Resigned | Thornaby | Lab | SDP | Re-elected for same seat at 1983 GE |
| 1979-1983 | 16/03/1981 | Christopher Brocklebank-Fowler | Resigned | Norfolk North West | Con | SDP | Defeated for same seat at 1983 GE |
| 1979-1983 | 19/03/1981 | Edward Lyons | Resigned | Bradford West | Lab | SDP | Defeated for same seat at 1983 GE |
| 1979-1983 | 04/07/1981 | James Wellbeloved | Resigned | Erith & Crayford | Lab | SDP | |
| 1979-1983 | 07/09/1981 | Michael O’Halloran | Resigned | Islington North | Lab | SDP | Defeated as Ind Lab candidate for same seat at 1983 GE |
| 1979-1983 | 01/10/1981 | Dickson Mabon | Resigned | Greenock | Lab | SDP | Defeated for same seat at next GE |
| 1979-1983 | 05/10/1981 | Bob Mitchell | Resigned | Southampton, Itchen | Lab | SDP | |
| 1979-1983 | 06/10/1981 | David Ginsburg | Resigned | Dewsbury | Lab | SDP | |
| 1979-1983 | 07/10/1981 | James Dunn | Resigned | Liverpool Kirkdale | Lab | SDP | |
| 1979-1983 | 07/10/1981 | Tom McNally | Resigned | Stockport South | Lab | SDP | |
| 1979-1983 | 29/10/1981 | Eric Ogden | Resigned | Liverpool West Derby | Lab | SDP | |
| 1979-1983 | 16/11/1981 | John Grant | Resigned | Islington Central | Lab | SDP | |
| 1979-1983 | 30/11/1981 | George Cunningham | Resigned | Islington South | Lab | Ind Lab | Joined SDP 16 Jun 1982 |
| 1979-1983 | 02/12/1981 | Ronald Brown | Resigned | Hackney South | Lab | SDP | |
| 1979-1983 | 11/12/1981 | Bruce Douglas-Mann | Resigned | Mitcham | Lab | Ind SDP |
Joined SDP 1 Jan 1982; Resigned seat and lost by-election June 1982
|
| 1979-1983 | 11/12/1981 | Jeffrey Thomas | Resigned | Abertillery | Lab | SDP | Defeated for same seat at 1983 GE |
| 1979-1983 | 22/12/1981 | Ednyfed Hudson Davies | Resigned | Caerphilly | Lab | SDP | |
| 1979-1983 | 22/01/1982 | Bryan Magee | Resigned | Leyton | Lab | Ind Lab | Joined SDP Mar 1982; Defeated at 1983 GE |
| 1979-1983 | 02/08/1982 | Robert Mellish | Resigned | Bermondsey | Lab | Ind Lab | Resigned seat Jan 1983 |
| 1983-1987 | 31/01/1987 | John Ryman | Resigned | Blyth Valley | Lab | Ind | Announced 12 May 1987 he would stand as an Ind at 1987 GE |
| 1987-1992 | March 1988 | Robert Maclennan | N/A | Caithness & Sutherland | SDP | Lib Dem | Re-elected for same seat at next GE |
| 1987-1992 | March 1988 | Charles Kennedy | N/A | Ross, Cromarty & Skye | SDP | Lib Dem | Re-elected for same seat at next GE |
| 1987-1992 | 19/05/1988 | Ron Brown | Withdrawn | Leith | Lab | Ind Lab | Whip withdrawn for 3 months |
| 1987-1992 | 14/03/1990 | Dick Douglas | Resigned | Dunfermline West | Lab | Ind Lab | Opposed to party acquiescence in administering the Poll tax’; Joined SNP 4 Oct 1990 |
| 1987-1992 | 25/09/1991 | Dave Nellist | Withdrawn | Coventry South East | Lab | – | Whip suspended; expelled from the Labour Party Dec 1991 |
| 1987-1992 | 25/09/1991 | Terry Fields | Withdrawn | Broad Green | Lab | – | Whip suspended, expelled from the Labour Party Dec 1991 |
| 1987-1992 | 13/03/1992 | John Browne | Withdrawn | Winchester | Con | Ind Con | Whip withdrawn after he announced he would be standing as an independent in the 1992 General Election following deselection |
| 1992-1997 | 23/07/1993 | Rupert Allason | Withdrawn | Torbay | Con | Ind Con | Whip withdrawn after failure to vote in 1993 confidence motion in Major; Whip restored Jul 1994 |
| 1992-1997 | 29/11/1994 | Teresa Gorman | Withdrawn | Billericay | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995; Re-elected for same seat at next GE |
| 1992-1997 | 29/11/1994 | Nicholas Budgen | Withdrawn | Wolverhampton South West | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995 |
| 1992-1997 | 29/11/1994 | Michael Cartiss | Withdrawn | Great Yarmouth | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995 |
| 1992-1997 | 29/11/1994 | Christopher Gill | Withdrawn | Ludlow | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995; Re-elected for same seat at next GE |
| 1992-1997 | 29/11/1994 | Richard Shepherd | Withdrawn | Aldridge-Brownhills | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995; Re-elected for same seat at next GE |
| 1992-1997 | 29/11/1994 | Antony Marlow | Withdrawn | Northampton North | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995 |
| 1992-1997 | 29/11/1994 | Sir Richard Taylor | Withdrawn | Southend East | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995 |
| 1992-1997 | 29/11/1994 | John Wilkinson | Withdrawn | Ruislip-Northwood | Con | Ind Con | Whip withdrawn after abstaining on a vote concerning the European Communities (Finance) Bill; restored April 1995; Re-elected for same seat at next GE |
| 1992-1997 | 29/11/1994 | Sir Richard Body | Resigned | Holland with Boston | Con | Ind Con | Resigned whip in protest at the treatment of eight MPs who abstained on the European Communities (Finance) Bill; Restored on 17 Jan 1996; Re-elected for same seat at next GE |
| 1992-1997 | 08/10/1995 | Alan Howarth | Resigned | Stratford-on-Avon | Con | Lab | Elected for different seat at next GE |
| 1992-1997 | 30/12/1995 | Emma Nicholson | Resigned | Torridge and West Devon | Con | Lib Dem | Seat won by Labour in 1997 GE; Made a life peer in 1997; Rejoined Conservative Party in 2016 |
| 1992-1997 | 24/02/1996 | Peter Thurnham | Resigned | Bolton North East | Con | Ind | Crossed the floor to join Lib Dems 12 Oct 1996 |
| 1992-1997 | 07/12/1996 | Sir John Gorst | Resigned | Hendon North | Con | Ind Con | Said ‘Free from Whip’ |
| 1992-1997 | 08/03/1997 | Sir George Gardiner | Resigned | Reigate | Con | Ref | Resigned whip after being deselected by local party; Defeated for same seat at next GE |
| 1997-2001 | 21/11/1997 | Peter Temple-Morris | Withdrawn | Leominster | Con | Ind | Whip suspended and resigns from Conservative Party; Joined Labour Party and accepted Party Whip 21 Jun 1998 |
| 1997-2001 | 29/06/1997 | Robert Wareing | Withdrawn | Liverpool West Derby | Lab | Ind Lab | Whip suspended till Nov 1997 |
| 1997-2001 | 29/06/1997 | Mohammed Sarwar | Withdrawn | Glasgow, Govan | Lab | Ind Lab | Whip restored March 1999 |
| 1997-2001 | 09/09/1998 | Tommy Graham | Withdrawn | Renfrewshire West | Lab | Ind (Scottish Lab) | Whip withdrawn; Stood as Independent at Scottish Parliament elections |
| 1997-2001 | 26/03/1999 | Dennis Canavan | Withdrawn | Falkirk West | Lab | Ind | Expelled from Party after decision to stand for Scottish Parliament against official candidate |
| 1997-2001 | 18/12/1999 | Shaun Woodward | Resigned | Witney | Con | Lab | Elected for different seat at next GE |
| 1997-2001 | 06/03/2000 | Ken Livingstone | Withdrawn | Brent East | Lab | Ind | Expelled from Party; Stood as Ind in London Mayoral elections |
| 1997-2001 | 11/04/2001 | Charles Wardle | Withdrawn | Bexhill and Battle | Con | Ind | Whip withdrawn after questioning choice of Conservative candidate for 2001 GE; Backed Independent candidate (Farage) as his successor |
| 2001-2005 | 10/12/2001 | Paul Marsden | Resigned | Shrewsbury | Lab | Lib Dem | Rejoined Labour Apr 2005 |
| 2001-2005 | 02/10/2002 | Andrew Hunter | Resigned | Basingstoke | Con | Ind Con (DUP) | Resigned Whip in order to ally with the DUP in Northern Ireland; Became Ind Con and on 10 Dec announced he was joining the DUP Parliamentary Group in the HoC |
| 2001-2005 | 23/06/2003 | Jeffrey Donaldson | Resigned | Lagan Valley | UUP | Ind Unionist | Resigned Whip over opposition to the Belfast Agreement; Joined the DUP 5 Jan 2004; Re-elected for same seat at next GE |
| 2001-2005 | 23/06/2003 | David Burnside | Resigned | South Antrim | UUP | Ind Unionist | Resigned Whip over opposition to the Belfast Agreement; Accepted Whip back on 9 January 2004 |
| 2001-2005 | 23/06/2003 | Rev. Martin Smyth | Resigned | Belfast South | UUP | Ind Unionist | Resigned Whip over opposition to the Belfast Agreement; Accepted Whip back on 9 January 2004 |
| 2001-2005 | 23/10/2003 | George Galloway | Withdrawn | Glasgow, Kelvin | Lab | Ind | Expelled from the Labour Party; formed the Respect Party – The Unity Coalition on 25 Jan 2004 |
| 2001-2005 | 25/02/2004 | Ann Winterton | Withdrawn | Congleton | Con | Ind | Whip restored 31 Mar 2004 |
| 2001-2005 | 15/01/2005 | Robert Jackson | Resigned | Wantage | Con | Lab | Disagreement with Party over higher education funding |
| 2001-2005 | 07/02/2005 | Jonathan Sayeed | Withdrawn | Mid Bedfordshire | Con | Ind Con | Whip withdrawn after Standards and Privileges report recommended suspension from House for 2 weeks; Whip restored 7 Mar 2005 |
| 2001-2005 | 25/03/2005 | Howard Flight | Withdrawn | Arundel & South Downs | Con | Ind Con | |
| 2005-2010 | 20/10/2006 | Clare Short | Resigned | Birmingham Ladywood | Lab | Ind Lab | Resigned Whip over war in Iraq and declared support for a hung Parliament at the next election |
| 2005-2010 | 26/06/2007 | Quentin Davies | Resigned | Grantham & Stamford | Con | Lab | Resigned from Con Party over disagreements with leadership |
| 2005-2010 | 16/09/2007 | Robert Wareing | Resigned | Liverpool, West Derby | Lab | Ind | Suspended from PLP Jun 1997 (1 week) and deselected by local party Sep 1997 |
| 2005-2010 | 26/09/2007 | Andrew Pelling | Withdrawn | Croydon Central | Con | Ind | Whip withdrawn after he confirmed he would stand against the offical Conservative candidate at the the next GE |
| 2005-2010 | 29/01/2008 | Derek Conway | Withdrawn | Old Bexley & Sidcup | Con | Ind Con | |
| 2005-2010 | 12/03/2008 | Bob Spink | Resigned | Castle Point | Con | Ind (UKIP) | UKIP Apr-Nov 2008 |
| 2005-2010 | 09/01/2010 | Iris Robinson | Withdrawn | Strangford | DUP | – | Expelled from the DUP |
| 2005-2010 | 14/05/2009 | Elliot Morley | Withdrawn | Scunthorpe | Lab | Ind | |
| 2005-2010 | 16/05/2009 | David Chaytor | Withdrawn | Bury North | Lab | Ind | Whip suspended after reports he would face charges over his expenses; Announced he would not be seeking re-election on 29 May 2009 |
| 2005-2010 | 16/06/2009 | Jim Devine | Withdrawn | Livingston | Lab | Ind | Whip suspended |
| 2005-2010 | 22/03/2010 | Stephen Byers | Withdrawn | North Tyneside | Lab | – | Whip suspended pending an inquiry by the Parlimentary Commissioner for Standards into whether parliamentary rules on paid advocacy had been broken. This followed questions over expense claims. |
| 2005-2010 | 22/03/2010 | Patricia Hewitt | Withdrawn | Leicester West | Lab | – | Whip suspended pending an inquiry by the Parlimentary Commissioner for Standards into whether parliamentary rules on paid advocacy had been broken. This followed questions over expense claims. |
| 2005-2010 | 22/03/2010 | Geoff Hoon | Withdrawn | Ashfield | Lab | – | Whip suspended pending an inquiry by the Parlimentary Commissioner for Standards into whether parliamentary rules on paid advocacy had been broken. This followed questions over expense claims. |
| 2005-2010 | 22/03/2010 | Margaret Moran | Withdrawn | Luton South | Lab | – | Whip suspended pending an inquiry by the Parlimentary Commissioner for Standards into whether parliamentary rules on paid advocacy had been broken. This followed questions over expense claims. |
| 2005-2010 | 25/03/2010 | Lady Sylvia Hermon | Resigned | North Down | UUP | Ind | Objected to the UUP’s electoral pact with the Conservatives; Re-elected for same seat at 2010 GE |
| 2010-2015 | 19/05/2010 | Eric Illsley | Withdrawn | Barnsley Central | Lab | – | Whip suspended after charges of false accounting; resigned 8 Feb 2011 from HoC |
| 2010-2015 | 14/10/2010 | Denis MacShane | Withdrawn | Rotherham | Lab | – | Whip suspended after complaint about expenses referred to the police; whip restored 4 July |
| 2010-2015 | 23/02/2012 | Eric Joyce | Withdrawn | Falkirk | Lab | Ind | Whip suspended; resigned from Lab 12 Mar 2012 |
| 2010-2015 | 02/11/2012 | Denis MacShane | Withdrawn | Rotherham | Lab | – | Resigned seat 2 Nov 2012 |
| 2010-2015 | 06/11/2012 | Nadine Dorries | Withdrawn | Mid Bedfordshire | Con | Ind | Whip restored 8 May 2012 |
| 2010-2015 | 31/05/2013 | Patrick Mercer | Resigned | Newark | Con | Ind | Resigned seat Apr 2014 after being suspended from the Commons (6months) |
| 2010-2015 | 04/06/2013 | Mike Hancock | Withdrawn | Portsmouth South | Lib Dem | Ind | Resigned whip |
| 2010-2015 | 19/07/2013 | David Ward | Withdrawn | Bradford East | Lib Dem | Ind | Whip suspended until 14 Sep |
| 2010-2015 | 10/09/2013 | Nigel Evans | Resigned | Ribble Valley | Deputy Speaker | Ind | Whip restored 28 Apr 2014 |
| 2010-2015 | 29/08/2014 | Douglas Carswell | Resigned | Clacton | Con | UKIP | Resigned seat 29 Aug 2014 triggering by-election on 9 Oct 2014; Re-elected as UKIP MP |
| 2010-2015 | 27/09/2014 | Mark Reckless | Resigned | Rochester and Strood | Con | UKIP | Resigned seat 27 Sep 2014 triggering by-election on 20 Nov 2014; Re-elected as UKIP MP |
| 2015-2017 | 29/09/2015 | Michelle Thomson | Resigned | Edinburgh West | SNP | Ind | Resigned whip and suspended from party |
| 2015-2017 | 23/11/2015 | Natalie McGarry | Resigned | Glasgow East | SNP | Ind | Resigned whip and suspended from party |
| 2015-2017 | 31/12/2015 | Simon Danczuk | Withdrawn | Rochdale | Lab | Ind | Whip suspended |
| 2015-2017 | 27/04/2016 | Naz Shah | Withdrawn | Bradford West | Lab | Ind | Whip restored 5 Jul 2016 |
| 2017-2019 | 10/07/2017 | Anne Marie Morris | Withdrawn | Newton Abbot | Con | Ind | Whip restored 12 Dec 2017 |
| 2017 | 25/10/2017 | Jared O’Mara | Withdrawn | Sheffield Hallam | Lab | Ind | Whip restored 3 Jul 2018, resigned from Labour Party 12 Jul 2018 |
| 2017 | 02/11/2017 | Kelvin Hopkins | Withdrawn | Luton North | Lab | Ind | |
| 2017 | 03/11/2017 | Charlie Elphicke | Withdrawn | Dover and Deal | Con | Ind | Whip restored 12 Dec 2018 |
| 2017 | 23/11/2017 | Ivan Lewis | Withdrawn | Bury South | Lab | Ind | |
| 2017 | 08/01/2018 | Barry McElduff | Withdrawn | West Tyrone | SF | Ind | Suspended for 3 months; resigned 16 Jan 2018 |
| 2017 | 30/04/2018 | John Woodcock | Withdrawn | Barrow and Furness | Lab | Ind | Resigned from Labour Party 18 July 2018 |
| 2017 | 14/07/2018 | Andrew Griffiths | Withdrawn | Burton | Con | Ind | Whip restored 12 Dec 2018 |
| 2017 | 24/07/2018 | Ian Paisley | Withdrawn | North Antrim | DUP | Ind | Whip restored 18 Sep 2018 |
| 2017 | 30/08/2018 | Frank Field | Resigned | Birkenhead | Lab | Ind | |
| 2017 | 06/12/2018 | Stephen Lloyd | Resigned | Eastbourne | Lib Dem | Ind | Whip restored 29 Oct 2019 |
| 2017 | 19/12/2018 | Fiona Onasanya | Withdrawn | Peterborough | Lab | Ind | |
| 2017 | 18/02/2019 | Luciana Berger | Resigned | Lverpool Wavertree | Lab | Ind | CUK from 18 Apr 2019 |
| 2017 | 18/02/2019 | Ann Coffey | Resigned | Stockport | Lab | Ind | CUK from 18 Apr 2019; TIGC from 5 Jul 2019 |
| 2017 | 18/02/2019 | Mike Gapes | Resigned | Ilford South | Lab | Ind | CUK from 18 Apr 2019; TIGC from 5 Jul 2019 |
| 2017 | 18/02/2019 | Chris Leslie | Resigned | Nottingham East | Lab | Ind | CUK from 18 Apr 2019; TIGC from 5 Jul 2019 |
| 2017 | 18/02/2019 | Gavin Shuker | Resigned | Luton South | Lab | Ind | CUK from 18 Apr 2019 |
| 2017 | 18/02/2019 | Angela Smith | Resigned | Penistone and Stocksbridge | Lab | Ind | CUK from 18 Apr 2019 |
| 2017 | 18/02/2019 | Chuka Umunna | Resigned | Streatham | Lab | Ind | CUK from 18 Apr 2019 |
| 2017 | 19/02/2019 | Joan Ryan | Resigned | Enfield North | Lab | Ind | CUK from 18 Apr 2019; TIGC from 5 Jul 2019 |
| 2017 | 20/02/2019 | Heidi Allen | Resigned | South Cambridgeshire | Con | Ind | CUK from 18 Apr 2019 |
| 2017 | 20/02/2019 | Anna Soubry | Resigned | Broxtowe | Con | Ind | CUK from 18 Apr 2019; TIGC from 5 Jul 2019 |
| 2017 | 20/02/2019 | Dr Sarah Wollaston | Resigned | Totnes | Con | Ind | CUK from 18 Apr 2019 |
| 2017 | 22/02/2019 | Ian Austin | Resigned | Dudley North | Lab | Ind | |
| 2017 | 27/02/2019 | Chris Williamson | Withdrawn | Derby North | Lab | Ind | Whip restored 26 Jun 2019 |
| 2017 | 01/04/2019 | Nick Boles | Resigned | Saffron Waldon | Con | Ind | |
| 2017 | 28/06/2019 | Chris Williamson | Withdrawn | Derby North | Lab | Ind | |
| 2017 | 22/07/2019 | Charlie Elphicke | Withdrawn | Dover and Deal | Con | Ind | |
| 2017 | 04/06/2019 | Heidi Allen | Resigned | South Cambridgeshire | CUK | Ind | Joined Lib Dems 7 Oct 2019 |
| 2017 | 04/06/2019 | Luciana Berger | Resigned | Lverpool Wavertree | CUK | Ind | Joined Lib Dems 5 Sep 2019 |
| 2017 | 04/06/2019 | Gavin Shuker | Resigned | Luton South | CUK | Ind | |
| 2017 | 04/06/2019 | Angela Smith | Resigned | Penistone and Stocksbridge | CUK | Ind | Joined Lib Dems 7 Sep 2019 |
| 2017 | 04/06/2019 | Chuka Umunna | Resigned | Streatham | CUK | Ind | Joined Lib Dems 13 Jun 2019 |
| 2017 | 04/06/2019 | Dr Sarah Wollaston | Resigned | Totnes | CUK | Ind | Joined Lib Dems 15 Aug 2019 |
| 2017 | 03/09/2019 | Phillip Lee | Resigned | Bracknell | Con | Lib Dem | |
| 2017 | 03/09/2019 | Rory Stewart | Withdrawn | Penrith and The Border | Con | Ind | |
| 2017 | 04/09/2019 | Guto Bebb | Withdrawn | Aberconwy | Con | Ind | |
| 2017 | 04/09/2019 | Richard Benyon | Withdrawn | Newbury | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Alistair Burt | Withdrawn | North East Bedfordshire | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Steve Brine | Withdrawn | Winchester | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Greg Clark | Withdrawn | Tunbridge Wells | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Ken Clarke | Withdrawn | Rushcliffe | Con | Ind | |
| 2017 | 04/09/2019 | David Gauke | Withdrawn | South West Hertfordshire | Con | Ind | |
| 2017 | 04/09/2019 | Justine Greening | Withdrawn | Putney | Con | Ind | |
| 2017 | 04/09/2019 | Dominic Grieve | Withdrawn | Beaconsfield | Con | Ind | |
| 2017 | 04/09/2019 | Sam Gyimah | Withdrawn | East Surrey | Con | Ind | Joined Lib Dems 14 Sep 2019 |
| 2017 | 04/09/2019 | Philip Hammond | Withdrawn | Runnymede and Weybridge | Con | Ind | |
| 2017 | 04/09/2019 | Stephen Hammond | Withdrawn | Wimbledon | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Richard Harrington | Withdrawn | Watford | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Margot James | Withdrawn | Stourbridge | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Oliver Letwin | Withdrawn | West Dorset | Con | Ind | |
| 2017 | 04/09/2019 | Anne Milton | Withdrawn | Guildford | Con | Ind | |
| 2017 | 04/09/2019 | Caroline Nokes | Withdrawn | Romsey and Southampton North | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Antoinette Sandbach | Withdrawn | Eddisbury | Con | Ind | Joined Lib Dems 31 Oct 2019 |
| 2017 | 04/09/2019 | Nicholas Soames | Withdrawn | Mid Sussex | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 04/09/2019 | Edward Vaizey | Withdrawn | Wantage | Con | Ind | Whip restored 30 Oct 2019 |
| 2017 | 07/09/2019 | Amber Rudd | Resigned | Hastings and Rye | Con | Ind | |
| 2017 | 22/09/2019 | Mike Hill | Withdrawn | Hartlepool | Lab | Ind | Whip restored 17 Oct 2019; Resigned as an MP 16 March 2021 |
| 2017 | 07/10/2019 | Stephen Hepburn | Withdrawn | Jarrow | Lab | Ind | |
| 2017 | 16/10/2019 | Dame Louise Ellman | Resigned | Liverpool, Riverside | Lab (Co-op) | Ind | |
| 2019 | 23/05/2020 | Jonathan Edwards | Withdrawn | Carmarthen East and Denefwr | PC | Ind | |
| 2019 | 29/05/2020 | Neale Hanvey | Withdrawn | Kirkcaldy and Cowdenbeath | Ind | SNP | Readmitted to party following six month suspension |
| 2019 | 15/07/2020 | Dr Julian Lewis | Withdrawn | New Forest East | Con | Ind | Whip reinstated 30 Dec 2020 |
| 2019 | 28/09/2020 | Claudia Webbe | Withdrawn | Leicester East | Lab | Ind | Expelled from the Labour Party following a suspended sentence for harassment |
| 2019 | 01/10/2020 | Margaret Ferrier | Withdrawn | Rutherglen and Hamilton West | SNP | Ind | |
| 2019 | 29/10/2020 | Jeremy Corbyn | Withdrawn | Islington North | Lab | Ind | Suspended from the Labour Party pending an investigation by the NEC; Resinstated as a party member on 17 Nov 2020 but not into the PLP |
| 2019 | 27/03/2021 | Kenny MacAskill | Resigned | East Lothian | SNP | Alba | |
| 2019 | 28/03/2021 | Neale Hanvey | Resigned | Kirkcaldy and Cowdenbeath | SNP | Alba | |
| 2019 | 25/05/2021 | Rob Roberts | Withdrawn | Delyn | Con | Ind | |
| 2019 | 18/06/2021 | Imran Ahmad Khan | Withdrawn | Wakefield | Con | Ind | Expelled from the Conservative party on 11 April 2022 following his conviction and resigned as an MP on 3 May 2022 |
| 2019 | 12/01/2022 | Anne Marie Morris | Withdrawn | Newton Abbot | Con | Ind | |
| 2019 | 19/01/2022 | Christian Wakeford | Resigned | Bury South | Con | Lab | |
| 2019 | 11/02/2022 | Neil Coyle | Withdrawn | Bermondsey and Old Southwark | Lab | Ind | Whip restored 24 May 2023 |
| 2019 | 02/04/2022 | David Warburton | Withdrawn | Somerton and Frome | Con | Ind | |
| 2019 | 29/04/2022 | Neil Parish | Withdrawn | Tiverton and Honiton | Con | Ind | Resigned as an MP on 4 May 2022 |
| 2019 | 14/06/2022 | Patrick Grady | Withdrawn | Glasgow North | SNP | Ind | Whip restored 29 December 2022 |
| 2019 | 19/07/2022 | Tobias Ellwood | Withdrawn | Bournemouth East | Con | Ind | Whip restored 14 October 2022 |
| 2019 | 07/09/2022 | Nick Brown | Withdrawn | Newcastle East | Lab | Ind | |
| 2019 | 27/09/2022 | Dr Rupa Huq | Withdrawn | Ealing Central and Acton | Lab | Ind | Whip restored 2 March 2023 |
| 2019 | 07/10/2022 | Conor Burns | Withdrawn | Bournemouth West | Con | Ind | Whip restored 3 December 2022 |
| 2019 | 13/10/2022 | Christina Rees | Withdrawn | Neath | Lab | Ind | Whip restored 31 January 2024 |
| 2019 | 21/10/2022 | Christian Matheson | Resigned | City of Chester | Lab | Ind | Resigned as an MP on 21 October 2022, on the same day as the Independent Expert Panel’s report recommending his suspension for four weeks, HC 823 2022-23 |
| 2019 | 01/11/2022 | Matt Hancock | Withdrawn | West Suffolk | Con | Ind | Whip restored 22 May 2024 |
| 2019 | 07/12/2022 | Conor McGinn | Withdrawn | St Helen’s North | Lab | Ind | |
| 2019 | 07/12/2022 | Julian Knight | Withdrawn | Solihull | Con | Ind | |
| 2019 | 11/01/2023 | Andrew Bridgen | Withdrawn | North West Leicestershire | Con | Ind | Sat as a Member for the Reclaim Party from 10 May 2023 until 20 December 2023 |
| 2019 | 05/04/2023 | Scott Benton | Suspended | Blackpool South | Con | Ind | |
| 2019 | 23/04/2023 | Diane Abbott | Withdrawn | Hackney North and Stoke Newington | Lab | Ind | Whip restored 28 May 2024 |
| 2019 | 01/06/2023 | Geraint Davies | Withdrawn | Swansea West | Lab | Ind | |
| 2019 | 09/06/2023 | Bambos Charalambous | Withdrawn | Enfield, Southgate | Lab | Ind | Whip restored 12 April 2024 |
| 2019 | 13/10/2023 | Lisa Cameron | Resigned | East Kilbride, Strathaven and Lesmahagow | SNP | Con | |
| 2019 | 17/10/2023 | Peter Bone | Withdrawn | Wellingborough | Con | Ind | Vacated seat following recall petition on 19 December 2023 |
| 2019 | 26/10/2023 | Crispin Blunt | Suspended | Reigate | Con | Ind | |
| 2019 | 30/10/2023 | Andy McDonald | Suspended | Middlesbrough | Lab | Ind | Whip restored 11 March 2024 |
| 2019 | 05/01/2024 | Chris Skidmore | Resigned | Kingswood | Con | Ind | Resigned seat on 8 January 2024 |
| 2019 | 04/11/2023 | Bob Stewart | Resigned | Beckenham | Con | Ind | Whip restored 22 May 2024 |
| 2019 | 28/01/2024 | Kate Osamor | Suspended | Edmonton | Lab | Ind | Whip restored 8 May 2024 |
| 2019 | 24/02/2024 | Lee Anderson | Suspended | Ashfield | Con | Ind | Sat as a Member for Reform UK from 11 March 2024 |
| 2019 | 30/03/2024 | Jeffrey Donaldson | Suspended | Lagan Valley | DUP | Ind | |
| 2019 | 12/04/2024 | William Wragg | Resigned | Hazel Grove | Con | Ind | |
| 2019 | 17/04/2024 | Mark Menzies | Suspended | Fylde | Con | Ind | |
| 2019 | 27/04/2024 | Dan Poulter | Resigned | Central Suffolk and North Ipswich | Con | Lab | |
| 2019 | 08/05/2024 | Natalie Elphicke | Resigned | Dover | Con | Lab | |
| 2019 | 27/05/2024 | Lucy Allan | Suspended | Telford | Con | Ind |
