31 October:Charnwood, Sileby & Seagrave (2027). Faye Forde (Green) has resigned.
Hampshire, Bishops Waltham (2025). Rob Humby (Conservative) has resigned.
Rochdale, North Middleton (2026). Peter Allonby (Middleton Independent Party) has been disqualified for non-attendance.
Salford, Eccles (2028). Sharmina August (Labour) has resigned.
Stockport, Bramhall South & Woodhall (2027). Ian Powney (Liberal Democrat) has ceased to be a councillor.
Westmorland & Furness, Kirkby Stephen & Tebay (2027). Phil Drew (Conservative) has been removed from the list of councillors.
Wolverhampton, Bilston North (2026). Susan Roberts (Labour) has died.
7 November:Aberdeenshire, Central Buchan (2027). David Mair (SNP) has resigned.
Aberdeenshire, Fraserburgh & District (2027). Seamus Logan (SNP) will be resigning at the end of August. He is the new MP for Aberdeenshire North & Moray.
Aberdeenshire, Mearns (2027). Kevin Stelfox (SNP) has resigned.
Blackpool, Bispham (2027). Tony Warne (Conservative) has been removed from the list of councillors.
Bracknell Forest, Great Hollands (2027). Naheed Ejaz (Labour) has resigned.
Herefordshire, Bishops Frome & Cradley (2027). Ellie Chowns (Green) has resigned. She is the new MP for North Herefordshire.
Inverclyde, Inverclyde West (2027). Martin McCluskey (Labour) has resigned. He is the new MP for Inverclyde & Renfrewshire West.
Moray, Elgin City South (2027). Graham Leadbitter (SNP) has resigned. He is the new MP for Moray West, Nairn & Strathspey.
Wyre, Marsh Mill (2027). Henry Jackson (Conservative) has resigned.
14 November:Derbyshire Dales, Calver & Longstone (2027). Kelda Boothroyd (Green) has been removed from the list of councillors.
East Ayrshire, Doon Valley (2027). Elaine Stewart (Labour) has resigned. She is the new MP for Ayr, Carrick & Cumnock.
East Ayrshire, Kilmarnock West and Crosshouse (2027). Lillian Jones (Labour) has resigned. She is the new MP for Kilmarnock & Loudon.
Edinburgh, Colinton/Fairmilehead (2027). Scott Arthur (Labour) has resigned. He is the new MP for Edinburgh South West.
Greenwich, Shooters Hill (2026). Danny Thorpe (Labour) has resigned.
Milton Keynes, Bradwell (2027). Robin Bradburn (Liberal Democrat) has died.
Milton Keynes, Broughton (2027). Kerrie Bradburn (Liberal Democrat) has resigned.
Redbridge, Wanstead Park (2026). Bayo Alaba (Labour) has ceased to be a councillor. He is the new MP for Southend East & Rochford.
Telford & Wrekin, Hadley & Leegomery (2027). Gemma Offland (Labour) has resigned.
Telford & Wrekin, The Nedge (2027). Chris Turley (Labour) has died.
West Lothian, Whitburn & Blackburn (2027). Kirsteen Sullivan (Labour) has resigned. She is the new MP for Bathgate & Linlithgow.
West Oxfordshire, Chipping Norton (2026). Rizvana Poole (Labour) has ceased to be a councillor.
21 November:Dacorum, Bennetts End (2027). John Birnie (Independent) has died.
Dacorum, Hemel Hempstead Town (2027). Sadie Hobson (Liberal Democrat) has resigned.
Dartford, Greenhithe & Knockhall (2027). Peter Harman (Swanscombe & Greenhithe Residents' Association) has died.
Glasgow, Drumchapel Anniesland (2027). Patricia Ferguson (Labour) has resigned. She is the new MP for Glasgow West.
Glasgow, Maryhill (2027). Keiran O'Neill (Labour) has resigned.
Glasgow, North East (2027). Maureen Burke (Labour) has resigned. She is the new MP for Glasgow North East.
Gosport, Harbourside & Town (2028). Alan Durrant (Labour) has died.
Highland, Fort William & Ardnamuchan (2027). Angus MacDonald (Liberal Democrat) has resigned. He is the new MP for Inverness, Skye and West Ross-shire.
Horsham, Denne (2027). John Milne (Liberal Democrat) has resigned. He is the new MP for Horsham.
Kent, Swanscombe & Greenhithe (2025). Peter Harman (Swanscombe & Greenhithe Residents' Association) has died.
Rutland, Oakham North East (2027). Hannah Edwards (Liberal Democrat) has died.
Sefton, Litherland (2027). Paul Tweed (no description elected as Labour) has been removed from the list of councillors.
Somerset, Blackmoor Vale (2027). Sarah Dyke (Liberal Democrat) has resigned. She is the new MP for Glastonbury & Somerton.
Somerset, Rowbarton & Staplegrove (2027). Dixie Darch (Liberal Democrat) has resigned.
Swale, Murston (2027). James Hall (Independent elected as Swale Independent) has been removed from the list of councillors.
28 November:
Barking and Dagenham, Northbury (2026), Darren Rodwell (Lab) has resigned
Barking & Dagenham, Village (2026). Margaret Mullane (Labour) has resigned. She is the new MP for Dagenham for Rainham.
Barking & Dagenham, Village (2026). Lee Waker (Labour) has died.
Fife, West Fife & Coastal Villages (2027). Graeme Downie (Labour) has been removed from the list of councillors. He is the new MP for Dunfermline & Dollar.
Islington, Junction (2026). Kaya Comer-Schwartz (Labour) has resigned.
Sheffield, Woodhouse (2026). Paul Wood (Sheffield Community Councillor, elected as Labour) has died.
South Gloucestershire, Frampton Cotterell (2027). Claire Young (Liberal Democrat) has resigned. She is the new MP for Thornbury & Yate.
West Dunbartonshire, Kilpatrick (2027). Douglas McAllister (Labour) has been removed from the list of councillors. He is the new MP for West Dunbartonshire.
York, Haxby & Wigginton (2027). Ed Pearson (Liberal Democrat) has resigned.
5 December:Fylde, Kilgrimol (2027). Tim Armit (Independent) has been removed from the list of councillors.
Glasgow, Partick East/Kelvindale (2027). Kenny McLean (SNP) has died.
Stirling, Stirling East (2027). Chris Kane (Labour) has resigned. He is the new MP for Stirling & Strathallan.
23 January:Shetland, Shetland North (2027). Tom Morton (Labour) has resigned. Byelection on 23 Jan 2025.
Known vacancies:Cardiff, Splott (2027). Jane Henshaw (Labour) has died.
Chelmsford, "South Hanningfield, Stock and Margaretting" (2027). Ian Grundy (Conservative) has died.
Essex, Stock (2025). Ian Grundy (Conservative) has died.
Runnymede, Ottershaw (2026). Malcolm Cressey (Independent) has been removed from the list of councillors.
South Oxfordshire, Cholsey. Ben Manning (Liberal Democrat) has been removed from the list of councillors.
St Helens, Blackbrook (2026). Linda Maloney (Labour) has died.
Wakefield, Featherstone (2027). Graham Isherwood (Labour) has died.
Wokingham, Shinfield (2028). Sarah Bell (Labour) has resigned.