In simple terms
A coalition government is a government formed jointly by more than one political party. No single party runs it alone.
Coalitions usually appear when an election gives no party a clear working majority, so parties that agree on enough to govern together join forces.
How it works
The trigger is arithmetic. The UK Parliament glossary describes a hung parliament, where no single party holds a clear working majority after a general election. Parties may then decide to form a coalition government instead.
What follows is negotiation. Britannica describes a coalition as different political parties choosing to cooperate in the administration and regulation of a country or community. The bargaining covers both policy and posts.
The posts are shared out. Members from all participating parties receive cabinet appointments, so the ministries are split between the partners rather than held by one party.
Coalitions are usually treated as temporary. Britannica describes them as short-term alliances rather than permanent structures, and notes they often form during periods of instability, including wartime or political breakdown.
The mechanics vary from country to country. How a prime minister is nominated, who gets the first attempt at forming a government, and how long the talks may run are all set by national rules.
Why it matters
A coalition changes who decides. A policy has to clear more than one party before it reaches a vote, which slows some decisions and softens others.
It also changes how long a government lasts. A coalition holds only while its partners keep agreeing, so a government with a narrow majority can be exposed on almost any vote.
For voters, it means the government that emerges is shaped in negotiations after the ballots are counted, not only by the ballots themselves.
Where you’ll see it
- Election night coverage counting seats toward a majority
- Reports of coalition talks after a result too close to call
- Cabinet lists naming ministers from more than one party
- Glossaries of parliamentary procedure and civics teaching
Example
An election leaves the largest party short of a majority, so it negotiates with two smaller parties, and the three divide the cabinet posts between them.
Often confused with
A coalition government is not the same thing as a hung parliament. A hung parliament is the election result. A coalition is one of the ways parties can respond to it.
Key facts
- The UK Parliament defines a coalition government as a government formed jointly by more than one political party.1
- Coalitions typically follow a hung parliament, where no single party holds a clear working majority after a general election.1
- Britannica describes a coalition as forming when different political parties choose to cooperate in the administration and regulation of a country or community.2
- Members from all participating parties receive cabinet appointments.2
- Coalitions are generally understood as short-term alliances rather than permanent structures, and often arise during instability such as wartime or political breakdown.2
In the news
Quick checkWhat election result usually leads to a coalition government?Show answer
A hung parliament, where no single party holds a clear working majority.
Sources
- UK Parliament. Coalition government, glossary. Undated (accessed 17 September 2026)
- Encyclopaedia Britannica, revised by Kara Rogers. Coalition government. Undated (accessed 17 September 2026)
Editorially reviewed by Specialty Digest Editorial TeamLast reviewed September 17, 2026Researched and drafted with AI assistanceReport an issue