Catherine and Prince William's charity submitted its accounts to the regulator this week
The Royal Foundation of the Prince and Princess of Wales reportedly pulled in £8.7million from its American office alone in 2025, representing 44 per cent of its overall £19.6million income for the year.
By contrast, Prince Harry and Meghan's Archewell recorded total revenues of just £1.93million in 2024, a sharp fall from the £4.23million raised the previous year.
The Sussexes' charitable arm, Archewell Philanthropies, is now undergoing a "reset" following staff redundancies made in December to streamline operations.
Despite this, the couple have pledged to "broaden their global philanthropic efforts."
The Royal Foundation of the Prince and Princess of Wales accounts, filed this week with the regulator, show that the American Friends branch of the foundation, a separately controlled entity set up in 2011, contributed nearly £4million more than the £4.9million it provided in 2024, according to the Mail.
William and Catherine's charity spent £16.5million on its programmes over the course of the year, retaining £10.6million in reserves as of December 2025.
The scale of US generosity towards the Wales household underscores the couple's growing transatlantic appeal, with American donors now responsible for almost half of all income flowing into the foundation.
Staff costs totalled £6.4million, reflecting an expanded workforce that grew from 67 to 80 employees over the reporting period.
The foundation's charitable activities span several major initiatives, including Catherine's Early Years programme for young children, William's Homewards project aimed at ending rough sleeping, and United for Wildlife, a venture launched last year to combat illegal animal trafficking.
Since 2022, the Royal Foundation has operated entirely independently from the Earthshot Prize, which William and Catherine established "to find, support and celebrate those who turn bold ideas into real solutions to repair our planet."
The Earthshot Prize reported total income of £23.5million for 2024, buoyed by a 68 per cent surge in donations, rising from £12.8million to £21.4million.
Those sums represent a scale of fundraising that Harry and Meghan, who formed Archewell after departing from royal duties in 2020, have struggled to match.
When the couple relocated to California, there was an expectation that they would attract substantial funding through their network of high-profile American allies, including Oprah Winfrey and television personality Gayle King.
Those hopes have not materialised. Archewell's most recent accounts show revenue more than halving, dropping from £4.25million in 2023 to £1.93million the following year.
The December redundancies were framed as part of an effort to streamline the organisation, though the sharp decline in income suggests deeper challenges for the Sussexes' philanthropic ambitions.
