What is a majority government?

A majority government is one where a single party holds more than half the seats in the legislature. At Westminster that means at least 326 of 650 MPs. With a majority, a government can usually pass its laws and Budget without other parties, as long as its own MPs stay loyal.

The size of a majority is usually counted as the gap between the governing party and all other parties combined. A government with 330 seats has a working majority of about 10. A government with 400 seats has a large majority and can survive rebellions by its own MPs. Majorities matter most on close votes, such as rebellions over welfare, tax or Europe. Whips work to keep MPs in line, and losing a key vote can weaken a government badly.

First past the post tends to produce majority governments, even when the winning party gets well under half the votes. At the 2024 election, Labour won 411 seats on about 34% of the vote, giving a majority of around 170. Large majorities were also won in 1997, 2001 and 2019.

A majority gives a government strong control of Parliament, but not unlimited power. It still faces the House of Lords, the courts, select committees and the risk of backbench revolts. Very large majorities can sometimes make discipline harder, because rebels know the government will not fall. Small majorities make every vote tense.