LONDON – Britain will cap how much donors living overseas can give to political parties and ban cryptocurrency donations following an independent review into the influence of foreign finance, a move that could hurt Nigel Farage’s Reform UK party.

The government ordered the review into foreign financial interference in politics after a former politician in Reform UK was jailed in 2025 for taking bribes to make pro-Russia speeches and statements.

In 2025, the populist Reform UK became the first British party to announce it would accept donations in the form of bitcoin and at least two-thirds of its money raised came from donors abroad.

Led by Mr Farage, a friend of US President Donald Trump, Reform is leading the governing Labour Party in…