There are another 33 by-elections called for February and 13 already in March. There are a further 18 known vacancies where there is as yet no date for the by-election, although 6 of these will have ward elections in May. There are also 23 reported vacancies which will not be filled under the "six month" rule.
8 February - 7Brighton & Hove UA, East Brighton - Labour resigned following election as MP - 4 candidates: Con, Lab, LD, Green
East Staffordshire, Stretton - Conservative resigned - 5 candidates: Con, Lab, LD, UKIP, Ind - Save Our Stretton
Eden DC, Hartside - Conservative died - 3 candidates: Con, Green, Ind
South Staffordshire DC, Codsall South - Conservative died 3 candidates: Con, Lab, Green
Staffordshire CC, Codsall - Conservative died - 3 candidates: Con, Lab, Green
Weymouth & Portland BC, Tophill East - Independent resigned - 3 candidates: Con, Lab, Green
Weymouth & Portland BC, Tophill West - Conservative resigned - 3 candidates: Con, Lab, Green
15 February - 14Doncaster MB, Armthorpe - Labour died - 2 candidates: Lab, Ind
East Northamptonshire DC, Higham Ferrers Lancaster - Conservative died - 5 candidates: Con, Lab, LD, Green, UKIP
Epsom & Ewell BC, Ruxley - Resident resigned - 4 candidates: Con, Lab, LD, Resident
Falkirk UA, Bonnybridge & Larbert - SNP died - 5 candidates: Con, Lab, SNP, Green, UKIP
Halton UA, Halton Castle - Labour died - 3 candidates: Con, Lab, No Description
Lancashire CC, Morecambe North - Conservative sitting as Independent resigned - 3 candidates: Con, Lab, LD
Northamptonshire CC, Higham Ferrers - Conservative died - 5 candidates: Con, Lab, LD, Green, UKIP
North East Derbyshire DC, Grassmore - Labour resigned - 3 candidates: Con, Lab, LD
North Norfolk DC, Worstead - Conservative resigned - 3 candidates: Con, Lab, LD
Teignbridge DC, Chudleigh - Conservative resigned - 3 candidates: Con, Lab, LD
Teignbridge DC, Dawlish Central & North East - Conservative resigned - 2 candidates: Con, LD
Tendring DC, St Paul's - UKIP sitting as Independent resigned - 7 candidates: Con, Lab, LD, Green, UKIP, 2 Ind
West Oxfordshire DC, Carterton South - Conservative resigned - 3 candidates: Con, Lab, LD
York UA, Holstead - Labour resigned - 4 candidates: Con, Lab, LD, Green
22 February - 12Arun DC, Marine - Conservative died - 4 candidates: Con, Lab, LD, Ind
Boston BC, Old Leake & Wrangle - Conservative resigned - 4 candidates: Con, Lab, UKIP, Blue Revolution
Chichester DC, Fishbourne - Liberal Democrat resigned - 3 candidates: Con, Lab, LD
Dorset CC, Bridport - Liberal Democrat resigned - 4 candidates: Con, Lab, LD, Green
Hertfordshire CC, Goffs Oak & Bury Green - Conservative died - 4 candidates: Con, Lab, LD, Green
Lichfield DC, Stowe - Conservative resigned - 5 candidates: Con, Lab, LD, Green, Something New
North Kesteven DC, Eagle, Swinderby & Witham St Hughes - Independent died - 3 candidates: Con, LD, Lincs Ind
Scottish Borders UA, Selkirkshire - Conservative resigned following appointment as MSP - 7 candidates: Con, Lab, LD, SNP, Green, 2 Ind
Torfaen UA, Trevethin - Labour resigned - 4 candidates: Lab, Green, 2 Ind
West Dorset DC, Bridport North - Liberal Democrat resigned - 4 candidates: Con, Lab, LD, Green
West Somerset DC, Minehead South - Independent sitting as UKIP resigned - 3 candidates: Con, Lab, LD
Wigan MB, Bryn - Independent resigned - 4 candidates: Con, Lab, LD, Ind
1 March - 4
Basingstoke & Deane BC, Kempshott - Conservative died - 3 candidates: Con, Lab, LD
Clackmannanshire UA, Clackmannanshire North - SNP resigned - 5 candidates: Con, Lab, LD, SNP, Green
East Devon DC, Exmouth Town - Liberal Democrat resigned - 5 candidates: Con, Lab, LD, Green, Ind
Solihull MB, Blythe - Conservative resigned - 3 candidates: Con, Lab, LD
8 March - 6Dacorum BC, Northchurch - Conservative died
East Hampshire DC, Petersfield Bell Hill - Conservative resigned
Harlow BC, Little Pardon & Harte Street - Labour resigned
Medway UA, Rochester West - Conservative resigned on appointment to Government
Nottingham UA, Wollaton West - Conservative died
Rutland UA, Oakham South East - Conservative resigned
15 March - 3Redcar & Cleveland UA, Longbeck - Independent resigned
South Kesteven DC, Stamford St George - Conservative resigned
South Kesteven DC, St Johns - Conservative resigned
Not yet called - 18* Bolton MB, Farnworth - Labour resigned around 8 January
Cheshire East UA, Bunbury - Conservative sitting as Independent resigned around 21 January
Chiltern DC, Ridgeway - Independent died 29 December
* Crawley BC, Ifield - Labour died 3 October
Fylde BC, Heyhouses - Conservative died 20 December
Highland UA, Caol & Mallaig - SNP died 18 January
** Hyndburn BC, St Oswalds - UKIP died 26 October
Lancaster BC, Skerton West - Labour died 8 November
Leicestershire CC, Stoney Stanton & Croft - Conservative died 2 January
Midlothian UA, Penicuik - Labour died 10 January
New Forest DC, Milford - Conservative died 12 January
* Rochford DC, Hockley - Resident resigned around 21 December
* Rushmoor BC, West Heath - UKIP sitting as Independent resigned 8 January
St Edmundsbury BC, St Olave's - Labour resigned towards end of January
Staffordshire Moorlands DC, Leek West - Conservative died 25 December
* Tameside MB, East Droylesden - Labour died 25 December
Warrington UA, Lymm South - Conservative died 13 January
Wyre BC, Breck - Conservative sitting as Independent resigned around 8 January
* elections in this ward in May
** election for this seat in May but not covered by 6 month rule
Vacancies arising under 6 month rule - 23Barking & Dagenham LB, Heath - Labour resigned
Bexley LB, Lesnes Abbey - Labour resigned
Birmingham MB, Kings Norton - Labour resigned
Bolton MB, Smithills - Liberal Democrat resigned
Bradford MB, Little Horton - Labour resigned
Brentwood BC, Herongate. Ingrave & West Horden - Localist sitting as Liberal Democrat resigned
Croydon LB, Selsdon & Ballard - Conservative resigned
Croydon LB, Thornton Heath - Labour sitting as Independent resigned
Hounslow LB, Bedfont - Labour resigned
Hounslow LB, Chiswick Riverside - Conservative resigned
Hounslow LB, Hanworth Park - Labour resigned
Newcastle-upon-Tyne MB, South Jesmond - Labour resigned
Oldham MB, Shaw - Liberal Democrat resigned
Oxford UA, Northfield Brook - Labour died
Portsmouth UA, Baffin - UKIP sitting as Conservative resigned
Reigate & Banstead BC, South Park & Woodhatch - Conservative resigned
Sefton MB, Blundellsands - Labour resigned
South Cambridgeshire DC, Bourn - Conservative resigned
South Lakeland DC, Burneside - Liberal Democrat resigned
Sutton LB, Stonecot - Liberal Democrat died
Weymouth & Portland BC, Weymouth West - Conservative sitting as Green resigned
Winchester BC, Wonston & Micheldever - Conservative sitting as Independent resigned
Wirral MB, Bebington - Labour died