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A polling station sign outside a British polling place

The calendar

Upcoming elections

What is scheduled, what is only a deadline, and what is merely expected — the difference matters, so it is stated on every entry.

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Already decided

Contests that shaped this Parliament

By-elections and scheduled contests since 2024 — the only real-world tests of the polling picture.

  1. 13 August 2026

    Farage holds Clacton on 63.3%

    Clacton by-election

    Nigel Farage resigned his seat on 8 July amid scrutiny of his personal finances and undeclared gifts, then re-contested it. Labour, the Conservatives, the Liberal Democrats, the Greens and Restore Britain all stood aside, leaving the novelty candidate Count Binface as runner-up on 26.9%. Turnout fell 13.6 points to 44.4%; majority 12,784.

    SourceWikipedia — 2026 Clacton by-election (13 August 2026)

  2. 18 June 2026

    Burnham returns to the Commons

    Makerfield by-election

    Held so Andy Burnham could re-enter Parliament and stand for the Labour leadership, party rules requiring any candidate to be an MP. Restore Britain took 6.8% and third place, ahead of the Conservatives.

    SourceWikipedia — 2026 Makerfield by-election (18 June 2026)

  3. 26 February 2026

    Greens win their first ever Westminster by-election

    Gorton and Denton by-election

    Hannah Spencer took the seat on 41% with a majority above 4,000 — the party had never previously exceeded 10% in a by-election. Reform UK second, Labour third. Green membership passed 200,000 within days.

    SourceWikipedia — 2026 in United Kingdom politics and government (26 February 2026)

  4. 7 May 2026

    Three sets of elections on one day

    Local, Scottish Parliament and Senedd elections

    UK local elections were held alongside the Scottish Parliament and Welsh Senedd elections — the first nationwide test of the post-2024 party landscape.

    SourceWikipedia — 2026 United Kingdom local elections (7 May 2026)