What is this?

Party donations are an important part of politics. They are an important indicator of political support. We try to present this data clearly and comprehensibly.

The data used here comes from the Electoral Commission and includes all political donations that have been documented there since 2010 and exceed £1,000. The underlying Electoral Commission register retroactively maps all historical transactions to each party's current official registered name. As a result, historical donations made to parties before an official rebranding or name change (such as donations made to The Brexit Party before 2021) are displayed under the party's current registered entity name (Reform UK). The donation data is updated quarterly.

Due to the high number of minor political parties, we only track donations for parties that meet a specific threshold. The current threshold is set at a total of £10K in contributions to that party, regardless of the size of individual donations.

Data source

Aggregated Sums Across the Years

Yearly Party Donations Overview

Donation amount per year
Aggregated sum of published contributions in United Kingdom, by year from 2010 - 2026. Dashed bars indicate preliminary data subject to further disclosure updates.
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As of 09/02/26
over £1K, only parties ≥ £10K, preliminary data since 2025

Explore our annual party donations overview, summarizing all contributions for each year. Click on a card to navigate to the detailed yearly breakdown.

View all remaining years
Details on individual parties

Party donations

Explore our party donations overview, aggregating all contributions for each party. Click on a card to access the donation details.

View all remaining parties
Details on individual donors

Donor donations

Discover our donors overview, showcasing the most significant financial contributors since 2010. Click on a donor to view their detailed contribution information.

Since 2010, the biggest disclosed single donation in United Kingdom reached £10,000,000.00 from Lord John Sainsbury to Conservative Party in 2023. This is followed by £9,000,000.00 from Christopher Harborne to Reform UK, £8,000,000.00 from Lord David Sainsbury to Lib Dems, and £5,000,000.00 from Mohamed Younes Mansour Lotfy Mansour to Conservative Party.

Legislative periods

Past legislative periods

Our Legislative Period Overview compiles all donations throughout the entirety of a legislative term. Click on a card to navigate to the respective legislative period.

As of September 2, 2026