What is a hung parliament?
No party reaches 326 seats, and someone has to govern anyway. With five parties splitting the vote — the poll leader sits around just 26% — the next election could plausibly produce one. Here's what happens next.
The rules when nobody wins
A hung parliament means no party holds a majority of the Commons' 650 seats (326, or ~323 in practice since Sinn Féin doesn't sit). The sitting Prime Minister stays in office and gets first go at building a government — even if they came second, as in 2010. The options, in rising order of formality: govern as a minority (daring others to vote you down), a confidence-and-supply deal (a partner backs you on budgets and confidence votes only, like the DUP in 2017), or a full coalition with shared ministries (2010–15).
Why it matters more now than in decades
First past the post historically manufactured majorities from ~40% vote shares. But with five parties between roughly 12% and 26%, the mechanism breaks down: seat outcomes become chaotic, and every plausible government becomes a negotiation. That transforms this site's subject matter — in a hung parliament, manifesto proposals become opening bids, and the small parties' priorities (care and electoral reform for the Lib Dems, wealth taxes for the Greens) can end up in the programme of a government they don't lead.
What it would mean for your money
Coalition arithmetic tends to sand the edges off the boldest pledges — the expensive tax cuts and the radical revenue-raisers are usually the first bargaining chips. Which is one more reason to understand the full menu of proposals rather than one manifesto.
Frequently asked questions
What is a hung parliament in simple terms?
An election result where no party wins a majority of Commons seats (326 of 650). The government must then be formed by a minority administration, a confidence-and-supply deal, or a coalition — all requiring cross-party negotiation.
Who becomes PM in a hung parliament?
The sitting Prime Minister stays in office initially and gets the first attempt to assemble a majority — regardless of who won most seats. If they can't, the monarch invites the leader most likely to command the Commons' confidence.
Has the UK had hung parliaments before?
Yes — most recently 2010 (Conservative–Lib Dem coalition) and 2017 (Conservative minority with DUP confidence-and-supply). Both were resolved within days to weeks.