Next United Kingdom general election

← 2019 No later than 28 January 2025
All 650 seats in the House of Commons 326[a] seats needed for a majority
Opinion polls
Leader Rishi Sunak Keir Starmer Party Conservative Labour Leader since 24 October 2022 4 April 2020 Leader's seat Richmond and Northallerton Holborn and St Pancras Last election 365 202 Current seats 349 199 Seats needed 128   Leader Humza Yousaf Ed Davey Party SNP Liberal Democrats Leader since 27 March 2023 27 August 2020[b] Leader's seat None[c] Kingston and Surbiton Last election 48 11 Current seats 43 15 Seats needed [d] 311
Map of the 650 constituencies
Incumbent Prime Minister Rishi Sunak Conservative

The next United Kingdom general election must be held no later than 28 January 2025.^[2][3] It will determine the composition of the House of Commons, which determines the next Government of the United Kingdom. Significant constituency boundary changes will be in effect, the first such changes since before the 2010 general election.

Background

The next election is scheduled to be held no later than 28 January 2025,^[2] with Parliament being dissolved no later than 17 December 2024. However, the incumbent government can choose to call the election before then, since the Fixed-term Parliaments Act 2011 was repealed under the Dissolution and Calling of Parliament Act 2022.

The results of the 2019 general election are given below, alongside the current numbers in the House of Commons. Numbers have changed through 21 by-elections and a number of defections and suspensions of members from their party that have taken place throughout the present parliament.

Affiliation		Members
		Elected in 2019[4]	Current[5]	Change
	Conservative	365	349	16
	Labour[e]	202	199	3
	SNP	48	43	5
	Liberal Democrats	11	15	4
	DUP	8	8
	Sinn Féin	7	7
	Plaid Cymru	4	3	1
	SDLP	2	2
	Alba	N/A[f]	2[g]	2
	Green	1	1
	Alliance	1	1
	Speaker	1	1
	Independent	0	18[h]	18
Total		650	649	1
Voting total[i]		639	637	2[j]
Vacant		0	1	1
Government majority		87	55[k]	32

For full details of changes during the current Parliament, see By-elections and Defections, suspensions and resignations.

Before this general election, in March 2022 the Labour Party had abandoned all-women shortlists, citing legal advice that continuing to use them for choosing parliamentary candidates would be an unlawful practice under the Equality Act 2010, since the majority of Labour MPs were now women.^[10]

Electoral system

General elections in the United Kingdom are organised using first-past-the-post voting. The Conservative Party, which won a majority at the 2019 general election, included pledges in its manifesto to remove the 15-year limit on voting for British citizens living abroad, and to introduce a voter identification requirement in Great Britain.^[11] Provisions for these changes have been enacted in the Elections Act 2022.

Boundary reviews

The Sixth Periodic Review of Westminster constituencies, which proposed reducing the number of constituencies from 650 to 600, was commenced in 2011, but temporarily stopped in January 2013. Following the 2015 general election, each of the four parliamentary boundary commissions of the United Kingdom recommenced their review process in April 2016.^[12][13][14] The four commissions submitted their final recommendations to the Secretary of State on 5 September 2018^[15][16] and made their reports public a week later.^{[17][18][19][15]} However, the proposals were never put forward for approval before the calling of the general election held on 12 December 2019, and in December 2020 the reviews were formally abandoned under the Schedule to the Parliamentary Constituencies Act 2020.^[20]

A projection by psephologists Colin Rallings and Michael Thrasher of how the 2017 votes would have translated to seats under the 2018 boundaries suggested the changes would have been beneficial to the Conservative Party and detrimental to the Labour Party.^[21][22]

In March 2020, Cabinet Office minister Chloe Smith confirmed that the 2023 Periodic Review of Westminster constituencies would be based on retaining 650 seats.^[23][24] The previous relevant legislation was amended by the Parliamentary Constituencies Act 2020^[25] and the four boundary commissions formally launched their 2023 reviews on 5 January 2021.^{[26][27][28][29]} They were required to issue their final reports prior to 1 July 2023.^[20] Once the reports have been laid before Parliament, Orders in Council giving effect to the final proposals must be made within four months, unless "there are exceptional circumstances". Prior to the Parliamentary Constituencies Act 2020, boundary changes could not be implemented until they were approved by both Houses of Parliament.

The boundary changes were approved at a meeting of the Privy Council on 15 November 2023,^[30] and came into force on 29 November 2023,^[31] meaning that the general election will be contested on these new boundaries.^[32]

Notional 2019 results

The election will be contested under new constituency boundaries established by the Sixth Boundary Review in 2023. Consequently, media outlets tend to report seat gains and losses as compared to notional results. These are the results if all votes cast in 2019 were unchanged, but regrouped by new constituency boundaries.^[33] Notional results in the UK are always estimated, usually with the assistance of local election results, because vote counts at parliamentary elections in the UK do not produce figures at any level below the whole constituency.

In England, seats will be redistributed away from Northern England and towards Southern England due to the different rates of population growth. North West England and North East England will lose two seats each whereas South East England will gain seven seats and South West England will gain three seats.^[34] Based on historic voting patterns, this is expected to help the Conservatives.^[35] Based on these new boundaries, different parties would have won several constituencies with unchanged names but changed boundaries in 2019. For example, the Conservatives would have won Wirral West and Leeds North West instead of the Labour Party, but Labour would have won Pudsey and Heywood & Middleton instead of the Conservatives. Westmorland and Lonsdale, the constituency represented by former Liberal Democrat leader Tim Farron, is now notionally a Conservative seat.

In Scotland, 57 MPs would be elected, down from the 59 in 2019, with the following notional partisan composition of Scotland's parliamentary delegation:^[36] The Scottish National Party would remain steady on 48 seats, despite two of their constituencies being dissolved. The Scottish Conservatives would likewise remain unchanged on six seats. Scottish Labour would have retained Edinburgh South, the sole constituency they won in 2019. The Scottish Liberal Democrats would have only won two seats (Edinburgh West and Orkney and Shetland) under the new boundaries if they had been contested in the 2019 general election, instead of the four they did win in 2019, due to the expanded electorates in the other two overcoming their slender majorities.

Under the new boundaries, Wales will lose eight seats, electing 32 MPs instead of the 40 they elected in 2019. Welsh Labour would have won 18 instead of the 22 MPs they elected in 2019, and the Welsh Conservatives 12 instead of 14. Due to the abolition and merging of rural constituencies in West Wales, Plaid Cymru would have only won two seats instead of four. Nonetheless, the boundaries are expected to cause difficulty for the Conservatives as more Labour-favourable areas are added to some of their safest seats.^[37]

In Northern Ireland, the notional results are identical to the actual results of the 2019 general election in Northern Ireland.

Notional 2019 results on 2023 boundaries

Party		MPs
		2019 actual result	2019 notional result	Change
	Conservative	365	372	7
	Labour	202	200	2
	SNP	48	48
	Liberal Democrats	11	8	3
	DUP	8	8
	Sinn Féin	7	7
	Plaid Cymru	4	2	2
	SDLP	2	2
	Green	1	1
	Alliance	1	1
	Speaker	1	1

Date of the election

Legal requirements

At the 2019 general election, in which the Conservatives won a majority of 80 seats, the manifesto of the party contained a commitment to repeal the Fixed-term Parliaments Act due to "paralysis at a time when the country has needed decisive action".^[38] In December 2020, the government published a draft Fixed-term Parliaments Act 2011 (Repeal) Bill, later retitled the Dissolution and Calling of Parliament Act 2022.^[39] This entered into force on 24 March 2022. The prime minister can again request the monarch to dissolve Parliament and call an early election with 25 working days' notice. Section 4 of the Act provided: "If it has not been dissolved earlier, a Parliament dissolves at the beginning of the day that is the fifth anniversary of the day on which it first met."

The Electoral Commission has confirmed that the 2019 Parliament must be dissolved, at the latest, by 17 December 2024, and that the next general election must take place no later than 28 January 2025.^[40][41]

Possible dates

As per the legal requirements above, the next election must take place in 2024, or in January 2025. The latter possibility is seen as unlikely by analysts, because it would require the general election campaign to encompass the Christmas holiday period. However, it is widely expected that the incumbent Conservative government will delay the election as long as possible while it trails the opposition Labour Party in opinion polling.^[42][43][44] On 18 December 2023, Sunak said to journalists that the general election will take place in 2024, rather than January 2025.^[3] On 4 January, he suggested the general election would probably be in the second half of 2024.^[45]

Candidates

MPs not standing for re-election

As of 19 February 2024, a total of 91 current members of Parliament have announced their intention not to stand for re-election. Four MPs — Nadine Dorries, Nigel Adams, Chris Skidmore (all Conservative) and Chris Pincher (independent, elected as Conservative) — announced their intention not to stand again but later resigned from Parliament before the election.^{[46][47][48][49][50][51]}

MPs deselected or seeking a new constituency

Some sitting MPs have not been selected by their party to recontest their seat (or a successor seat). Options available to these MPs include standing down, challenging their non-selection, seeking selection for another seat, and contesting the election under a different banner.

MPs changing constituencies

Due to boundary changes, most MPs standing for re-election will seek to represent a seat at least slightly different from their present seat. However, in some cases sitting MPs have secured selection to stand in a substantially or completely different seat from their present seat. They may happen because their seat is marginal and is likely to be lost by their party, boundary changes abolish their present seat or their present seat is redrawn in an unfavourable way in boundary changes.

Opinion polling

The chart below shows opinion polls conducted for the next United Kingdom general election. The trend lines are local regressions (LOESS).