What is a hung Parliament?
A hung Parliament is a House of Commons in which no single political party has an overall majority of seats.
It is also described as a situation of no overall control.
In short
A hung Parliament does not mean Parliament stops working.
It means no party can rely on an overall Commons majority of its own.
Parties may negotiate a coalition, a minority government, a confidence-and-supply agreement or another arrangement capable of commanding the confidence of the House.
What would an obvious hung result look like?
Suppose the 650 seats were distributed:
| Party | Seats |
|---|---|
| A | 295 |
| B | 270 |
| C | 60 |
| Others | 25 |
No party has an overall majority.
That is a hung Parliament.
Party A is the largest party, but that does not by itself settle exactly how the government will be formed.
Does the largest party automatically form the government?
No automatic legal rule says "largest party must govern".
The key constitutional principle is that a government must be able to command the confidence of the House of Commons.
The incumbent Prime Minister remains in office while it becomes clear whether they can continue or whether an alternative administration can command confidence.
In practice, the largest party is often best placed to form a government — but that is not the same as having an automatic right.
What is a coalition?
A coalition government is formed jointly by more than one political party.
The parties agree to govern together and normally divide ministerial positions between them.
The Conservative–Liberal Democrat government formed after the 2010 general election is a recent UK example.
What is a minority government?
A minority government is formed by a party or group that does not hold an overall majority of Commons seats.
It can still govern if enough other MPs:
- support it;
- abstain;
- agree not to defeat it on confidence matters.
A minority government does not need to win every Parliamentary vote.
It does need to remain able to command confidence.
What is confidence and supply?
A confidence-and-supply agreement is less extensive than a full coalition.
Another party agrees to support, or not defeat, the government on key votes involving:
- confidence;
- the supply of public money/budgets.
The supporting party does not necessarily join the government.
The Conservative minority government formed after the 2017 election operated with a confidence-and-supply agreement with the DUP.
Does a hung Parliament automatically mean another election?
No.
A general election can eventually become one possible political outcome, but there is no automatic rule requiring an immediate second election simply because no party has a majority.
Parties first have the opportunity to establish whether a viable government can be formed.
How long do negotiations take?
There is no universal fixed timetable requiring a new government to be agreed within a specific number of days.
The exact process depends on the political arithmetic and negotiations.
The existing government continues in office while it becomes clear who can command confidence.
In Road to Number 10
A result below an outright majority does not necessarily mean your campaign has "lost everything".
The Coalition Analysis section explores the political arithmetic created by a hung Parliament.
The simulation simplifies a very complex political process, but the underlying concept is real:
seat totals determine which governing arrangements are arithmetically and politically possible.