The next UK general election
When the next UK general election must be held (no later than 15 August 2029), the House of Commons today, the swing each party needs for a majority and the most marginal seats.
Must be held no later than
15 August 2029
At most 1,027 days away. The Parliament elected in 2024 first met on 9 July 2024. It is dissolved automatically five years after that day unless the prime minister calls an election sooner, and polling day follows 25 working days after dissolution.
The House of Commons today
How it changed since 2024Labour hold 409 of 650 seats, a working overall majority of 168.
- Gorton and Denton Feb 2026: Grn gain from Lab
- Runcorn and Helsby May 2025: Ref gain from Lab
Seats are counted by the party that won them at the 2024 general election or a later by-election. MPs who changed party, were suspended or sit as independents after being elected are not tracked here.
Swing needed for a majority
All target lists| Party | Seats now | Needed | Uniform swing needed | |
|---|---|---|---|---|
| Conservative | 121 | 205 | 9.7 pts | Targets |
| Labour | 409 | 0 | majority | Targets |
| Reform UK | 6 | 320 | — | Targets |
| Scottish National Party | 9 | 317 | — | Targets |
| Green | 5 | 321 | — | Targets |
| Liberal Democrats | 72 | 254 | — | Targets |
| Independent | 6 | 320 | — | Targets |
The swing in the seat that would take the party to 326 seats if it won its targets in order, from seats where it came second in 2024. A dash means the party did not come second in enough seats to reach a majority this way. Real elections rarely swing uniformly. Try your own swing →
The 20 most marginal seats
All marginal seats| Constituency | Held by | Challenger | Majority |
|---|---|---|---|
| Hendon | Lab | Con | 15 |
| Poole | Lab | Con | 18 |
| Basildon and Billericay | Con | Lab | 20 |
| North West Cambridgeshire | Lab | Con | 39 |
| Central Devon | Con | Lab | 61 |
| Havant | Con | Lab | 92 |
| Exmouth and Exeter East | Con | Lab | 121 |
| South Basildon and East Thurrock | Ref | Lab | 98 |
| Beverley and Holderness | Con | Lab | 124 |
| Peterborough | Lab | Con | 118 |
| Chelsea and Fulham | Lab | Con | 152 |
| Blackburn | Ind | Lab | 132 |
| East Londonderry | DUP | SF | 179 |
| Middlesbrough South and East Cleveland | Lab | Con | 214 |
| Forest of Dean | Lab | Con | 278 |
| Bromley and Biggin Hill | Con | Lab | 302 |
| Derbyshire Dales | Lab | Con | 350 |
| Sittingbourne and Sheppey | Lab | Con | 355 |
| Ely and East Cambridgeshire | LD | Con | 495 |
| North Antrim | TUV | DUP | 450 |
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Official results UK Parliament election results data (House of Commons Library). Contains Parliamentary information licensed under the Open Parliament Licence v3.0. How we use this data