The Electoral Commission published its Q4 2025 donation figures in February 2026, showing Reform UK on £5.4 million against the Conservative Party on £4 million and Labour on £1.98 million. A further £3 million donation from Christopher Harborne appears in the Q4 report, bringing his personal six-month total to approximately £12 million.
Reform's Q4 total is 2.7 times the Labour figure in the quarter immediately before the pre-election regulated period began. The regulated period limits the amount parties and their supporters can spend on national campaigning in the run-up to polling day. Money raised before the regulated period starts can be spent during it; money raised inside it counts against the cap. Reform entered 2026 having banked more spendable cash than Labour and the Conservatives combined during the final unregulated quarter.
The structural conclusion the Electoral Commission data force is that one donor has provided roughly twice what Labour received from all sources combined in the final quarter of 2025. By donation volume, Reform UK is not a grassroots insurgency; it is a single-donor operation whose electoral viability is tied, in the 2026 cycle, to the continuing willingness of one individual to write multi-million-pound cheques.
