Political funding in the United Kingdom

Political funding in the United Kingdom refers to all funds that are raised and spent for political purposes. Political parties and, by extension, politicians in the United Kingdom receive funding from a variety of sources, including membership fees, party donations, and state funding.

There also exist non-party organisations such as campaigning organisations; for instance, Vote Leave and Britain Stronger in Europe represented the "leave" and "remain" campaigns respectively in the referendum to decide if the UK should continue to remain a member of, or leave, the European Union.

Political funding has often been a source of major controversy. Prime Ministers including David Cameron and Boris Johnson have been criticized for offering private dinners to large donors.

Unlike most European nations, foreigners and large corporations are allowed to give money to political parties. In 2025, the chair of the UK Electoral Commission described British campaign finance rules as “out of date” and "weak"