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Elections (Proportional Representation) Bill

A Bill to introduce a system of proportional representation for parliamentary elections and for local government elections in England; and for connected purposes.

Originating House

House of Commons

Sponsor

Sarah OlneyLiberal Democrat

Parliament last updated

14 July 2025

In Plain English

AI-generated

May contain errors — check source documents for definitive information.

The Elections (Proportional Representation) Bill would replace the current first-past-the-post system for UK Parliament elections and for local elections in England and Wales with a proportional representation system. It aims for seats to reflect votes, targeting a mean Gallagher proportionality index of under 10 over the last five general elections, with the new system taking effect after specific timeframes once the law is passed. The bill would be implemented by the Secretary of State and could change other laws as needed.

Key Points

  • Would end first-past-the-post for UK Parliament elections and for local government elections in England (and related English/Welsh local elections).
  • Aims for seats to be roughly proportional to votes, targeting a mean Gallagher proportionality index (a measure of proportionality) under 10 over the last five general elections.
  • Implementation timelines: the proportional system would be introduced six months after enactment; the act would come into force two months after passage.
  • Allows regulations to implement changes to other laws as part of bringing in the new system.
  • Sponsored by Sarah Olney (Liberal Democrat); current stage is the 2nd reading in the Commons, following the 1st reading in December 2024; document trail notes the initial publication (21 Jan 2025) but provides no published amendments or committee recommendations in the material available.

Progress

The bill has moved from its first reading in December 2024 to the second reading in the House of Commons, scheduled for 29 May 2026. There is no information in the provided material about amendments or a committee stage yet, and no Lords stage details are included.

Who is affected?

Voters in UK Parliament electionsVoters in local elections in England and WalesLocal authorities and their election staff (election administrators)Political parties and candidates contesting electionsGovernment departments responsible for implementing election reforms (e.g., the Secretary of State)

Generated 21 February 2026

Bill Stages

1st readingCommons

3 Dec 2024

2nd readingCommons

29 May 2026

Committee stageCommons
Report stageCommons
3rd readingCommons
1st readingLords
2nd readingLords
Committee stageLords
Report stageLords
3rd readingLords
Royal Assent

Updates & Documents

News (1)

Elections (Proportional Representation) Bill

4 Dec 2024

The next stage for this Bill, Second reading, is scheduled to take place on Friday 29 May 2026, although the House of Commons is not expected to be sitting on that date.

This is a Private Members' Bill and was introduced to Parliament on Tuesday 3 December 2024 under the Ten Minute Rule.

Documents (1)

Bill 138 2024-25 (as introduced)
BillCommons

The Elections (Proportional Representation) Bill would end first-past-the-post for UK Parliament elections and for English local authority elections, replacing them with a proportional representation system after six months from enactment. It requires the Secretary of State to establish a PR system that would deliver seats roughly in proportion to votes, aiming for a mean Gallagher proportionality index under 10 over the last five general elections, and allows regulations to implement changes to other laws. The bill covers Parliament elections across the UK and local elections in England and Wales, comes into force two months after passage, and is titled the Elections (Proportional Representation) Act 2025.

21 Jan 2025

Parliamentary Votes (0)

No recorded votes for this bill yet.