View source for 2040 United Kingdom General Election

{{Infobox election
| election_name = 2040 United Kingdom general election
| country = United Kingdom
| type = parliamentary
| previous_election = 2033 United Kingdom General Election
| previous_year = 2033
| next_election = 2044 United Kingdom General Election
| next_year = 2044
| election_date = {{Start date|2040|5|20}}
| seats_for_election = All 650 seats in the House of Commons
| majority_seats = 326
| first_election = 
| opinion_polls = Opinion polling for the 2040 United Kingdom general election
| ongoing = no
| results_sec = 

<!-- Labour -->| image1 = [[File:Tom Tugendhat Official Cabinet Portrait, October 2022 (cropped).jpg|120px]]
| leader1 = '''[[Tom Tugendhat]]'''
| party1 = Conservative Party (UK)
| colour1 = 
| leader_since1 = 2024
| leaders_seat1 = Tonbridge
| last_election1 = 372
| seats_before1 = 
| seats1 = 480
| seat_change1 = {{increase}} 108
| popular_vote1 = 
| percentage1 = 41%
| swing1 = {{increase}} 3.9
| seats_needed2 = 

| turnout = <!-- Labour -->
| image2 = {{CSS image crop|Image = Official portrait of Angela Rayner MP crop 2.jpg|bSize = 130|cWidth = 120|cHeight = 160|oTop = 10|oLeft = 8}}
| leader2 = [[Angela Rayner]]
| party2 = Labour Party (UK)
| colour2 = 
| leader_since2 = 2020
| leaders_seat2 = Ashton under<br>Lyme
| last_election2 = 171
| seats_before2 = 
| seats2 = 94
| seat_change2 = {{decrease}} 77
| popular_vote2 = 
| percentage2 = 24%
| swing2 = {{decrease}} 3
| seats_needed2 = 


<!-- Lib Dems -->| image3 = {{CSS image crop|Image = Hina Bokhari 1 (cropped).jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader3 = [[Hina Bokhari]]
| party3 = Liberal Democrats (UK)
| colour3 = 
| leader_since3 = 2035
| leaders_seat3 = Mitcham and Morden
| last_election3 = 30
| seats_before3 = 
| seats3 = 32
| seat_change3 = {{increase}} 2
| popular_vote3 = 
| percentage3 = 19%
| swing3 = {{increase}} 2
| seats_needed3 = 


<!-- SNP -->| image4 = {{CSS image crop|Image = Minister for Culture, Europe and International Development - Kaukab Stewart.jpg|bSize = 130|cWidth = 130|cHeight = 160|oTop = 0|oLeft = 0}}
| leader4 = [[Kaukab Stewart]]
| party4 = Scottish National Party
| colour4 = 
| leader_since4 = 2026
| leaders_seat4 = ''Did not stand''
| last_election4 = 50
| seats_before4 = 
| seats4 = 39
| seat_change4 = {{decrease}} 11
| popular_vote4 = 
| percentage4 = 3.3
| swing4 = {{increase}} 0.9
| seats_needed4 = 

<!-- GPEW -->| image5 = {{CSS image crop|Image = Carla Denyer, 1 October 2022.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader5 = [[Carla Denyer]]
| party5 = Green Party of England and Wales
| colour5 = 
| leader_since5 = 2021<br>(2025 as single)
| leaders_seat5 = Bristol Central
| last_election5 = 2
| seats_before5 = 
| seats5 = 3
| seat_change5 = {{increase}} 1
| popular_vote5 = 
| percentage5 = 5.1
| swing5 = {{increase}} 1.1
| seats_needed5 = 

<!-- Reform UK -->| image6 = {{CSS image crop|Image = Richard Tice (22031179792) (cropped).jpg|bSize = 130|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader6 = [[Richard Tice]]
| party6 = Reform UK
| colour6 = 
| leader_since6 = 2033
| leaders_seat6 = N/A
| last_election6 = 
| seats_before6 = 0
| seats6 = 0
| seat_change6 = {{decrease}} 1
| popular_vote6 = 
| percentage6 = 1%
| swing6 = {{steady}}
| seats_needed6 = 

| map = 
| map_upright = 
| map_alt = 
| map_caption = 
| map_image = 
| title = [[Prime Minister of the United Kingdom|Prime Minister]]
| before_election = [[Tom Tugendhat]]
| before_party = [[Conservative Party (UK 2050)|Labour]]
| after_election = [[Tom Tugendhat]]
| after_party = [[Conservative Party (UK 2050)|Conservative]]
| footnote = 
| outgoing_members = 
}}