Following the United Kingdom's withdrawal from the European Union on 31 January 2020, in accordance with the Agreement on the withdrawal of the United Kingdom from the European Union, the mandates of the following Members elected in the United Kingdom had come to an end on 31 January 2020:
Scott Ainslie, Christian Allard, Heather Anderson, Martina Anderson, Catherine Bearder, Phil Bennion, Jane Brophy, David Bull, Jonathan Bullock, Judith Bunting, Ellie Chowns, Richard Corbett, Seb Dance, Martin Edward Daubney, Chris Davies, Belinda de Lucy, Dinesh Dhamija, Diane Dodds, Gina Dowding, Andrew England Kerr, Jill Evans, Nigel Farage, Lance Forman, Claire Fox, Barbara Ann Gibson, Nathan Gill, Neena Gill, James Alexander Glancy, Theresa Griffin, Ben Habib, Daniel Hannan, Lucy Elizabeth Harris, Michael Heaver, Antony Hook, Martin Horwood, John Howarth, Jackie Jones, Christina Sheila Jordan, Jude Kirton-Darling, Naomi Long, John Longworth, Rupert Lowe, Magid Magid, Anthea Mcintyre, Aileen Mcleod, Nosheena Mobarik, Shaffaq Mohammed, Brian Monteith, Claude Moraes, June Alison Mummery, Lucy Nethsingha, Bill Newton Dunn, Henrik Overgaard Nielsen, Rory Palmer, Matthew Patten, Alexandra Lesley Phillips, Alexandra Louise Rosenfield Phillips, Luisa Porritt, Jake Pugh, Annunziata Mary Rees-Mogg, Sheila Ritchie, Catherine Rowett, Robert Rowland, Molly Scott Cato, Louis Stedman-Bryce, John David Edward Tennant, Richard Tice, Geoffrey Van Orden, Caroline Voaden, Irina Von Wiese, Julie Ward, James Wells and Ann Widdecombe.
In accordance with the European Council's decision of 28 June 2018 and following the United Kingdom's withdrawal from the European Union on 31 January 2020, the competent authorities of 13 Member States had informed the European Parliament that the following Members had been elected to Parliament with effect from 1 February 2020:
Denmark: Linea Søgaard-Lidell; Estonia: Riho Terras; Ireland: Barry Andrews and Deirdre Clune; Spain: Marcos Ros Sempere, Margarita de la Pisa Carrión, Gabriel Mato Adrover, Adrián Vázquez Lázara and Clara Ponsatí i Obiols; France: Ilana Cicurel, Sandro Gozi, Claude Gruffat, Jean-Lin Lacapelle and Nora Mebarek; Croatia: Romana Jerković; Italy: Sergio Antonio Berlato, Salvatore De Meo and Vincenzo Sofo; Austria: Thomas Waitz; Poland: Dominik Tarczyński; Romania: Victor Negrescu; Slovakia: Miriam Lexmann; Finland: Alviina Alametsä; Sweden: Jakop Dalunde.
Under Rule 3(2), until such time as their credentials had been verified or a ruling had been given on any dispute, and provided that they had previously made a written declaration stating that they did not hold any office incompatible with that of Member of the European Parliament, these Members would take their seats in Parliament and on its bodies and would enjoy all the rights attaching thereto.