Election poll tracker: How do the parties compare?

To get an appropriate range of polls for our averages, we use those conducted by members of the British Polling Council., external

Its members agree to the same rules on transparency, but the council has said membership should not be seen as a guarantee of quality.

The polls we include have come from BMG, Deltapoll, Electoral Calculus, Find Out Now, Focaldata, Ipsos, JL Partners, More in Common, Opinium, Norstat (formerly Panelbase), People Polling, Redfield and Wilton Strategies, Savanta, Survation, Techne, Verian (formerly Kantar Public), WeThink (formerly Omnisis), Whitestone Insight and YouGov.

We only include the headline percentages on voting intention, which pollsters calculate by excluding those people who answered “don’t know” or “won’t vote”.

Most of the polls included cover Great Britain, although some do poll the whole of the UK. People surveyed do not get the option to choose parties which only stand in Northern Ireland.

We include data that is in the public domain. Some polling companies will not publish all data for all parties at the same time.

For voting intention, polling companies typically ask interviewees a question along the lines of: “If a general election were held tomorrow, which party would you vote for?”

Some polling companies have not given their interviewees the choice of some parties, including them within the “other” category.

For example, Reform UK, formerly the Brexit Party until 2021, has only been included as an option in every poll featured in our tracker since autumn 2022, while support for Plaid Cymru is included among “other” parties in polls released by Techne.

Produced by Grace Richardson, Scott Jarvis, Becky Rush, Allison Shultes, Libby Rogers, Daniel Wainwright, Aidan McNamee, Jana Tauschinski, Debie Loizou, Preeti Vaghela, Robert Cuffe, John Walton.