The Electoral Commission Q3 2025 donation report, published in late 2025, records Reform UK accepting just over £10.5 million between July and September. Of that total, £9 million came from a single donation by Christopher Harborne, a British cryptocurrency investor and aviation entrepreneur resident in Thailand. The Electoral Commission notes it is the largest single donation to a UK political party from a living individual since the regulator's records began.
Reform UK's Q3 total was also the largest quarterly sum accepted by any UK party in 2025. The Conservative Party took just under £7 million in the same quarter across hundreds of smaller donations. Labour's Q3 figure was below £3 million. One donor's contribution to one party exceeded the total Q3 intake of any other UK party from all sources combined.
Party finance law under the Political Parties, Elections and Referendums Act 2000 (PPERA) treats permissible donations from UK-registered voters as lawful regardless of scale, and Harborne is on the electoral roll. The Electoral Commission's enforcement power extends to permissibility, not to structural concentration. No party has formally challenged the declaration. The statutory framework as drafted has no mechanism to respond to single-donor dominance on this scale, whether or not the donor remains on the roll.
