Philanthropy is undergoing a fundamental structural shift. In the business of philanthropy, charitable giving is no longer viewed as a quiet, discretionary “add-on” to wealth management or the tail end of an estate plan. Instead, it is being reframed as a governed, strategic allocation of capital. Modern donors increasingly expect evidence of impact, behaving less like traditional patrons and more like “impact-driven investors.”
This evolution was recently highlighted in Citywealth’s feature “The Business of Philanthropy” (22 April 2026).As we look toward the Citywealth Forum on 12 May, it is clear that while the spirit of giving is changing, the architecture of giving remains heavily dictated by tax law.
In 2026, the rules of the road for international donors have diverged significantly across the three jurisdictions we navigate most often: the United Kingdom, the United States, and Spain.
Data and Governance in The Business of Philanthropy
The scale of global giving is staggering. The United States continues to lead the pack, accounting for roughly 40–50% of global charitable giving with annual donations exceeding US$450 billion. Worldwide, the total philanthropic pool is estimated to be between US$700 billion and US$1 trillion.
High-profile platforms, such as MacKenzie Scott’s Yield Giving, which has distributed over US$26 billion in unrestricted grants, have set a new benchmark. Donors now seek data, rigour, and structural efficiency. At Del Canto Chambers, we see this reflected in how UHNW individuals approach their international tax planning. They aren’t just writing checks; they are building structures.
United Kingdom: Tightening the Perimeter
The UK’s philanthropic regime remains anchored by Gift Aid, but recent legislative shifts have made the landscape more restrictive for international donors looking into the business of philanthropy.
Gift Aid and Marginal Rates
For UK taxpayers, Gift Aid remains a powerful tool. A £100 donation is treated as if it were made net of basic-rate tax (20%), allowing the charity to reclaim the difference from HMRC, turning the gift into £125. Higher and additional-rate taxpayers can then claim back the difference (20% or 25% respectively) via Self Assessment.
However, the “collateral effects” are often where the real value lies for high earners. Because Gift Aid extends the basic-rate band, it can help mitigate the High Income Child Benefit Charge or prevent the tapering of the personal allowance that begins at £100,000.
The 2024 and 2026 Restrictions
Two major developments have changed the game in the UK:
- The End of EU Reciprocity: Since 6 April 2024, tax relief is strictly limited to UK-recognised charities. The historical route of giving to EU/EEA charities and claiming relief (the Persche doctrine) is gone.
- Finance Act 2026: This introduced an “outcome” test for “tainted” charity donations. HMRC can now claw back relief if a donor or a connected person receives any financial assistance from the recipient charity, regardless of the original “purpose.” This requires a fresh look at any naming rights or property arrangements.
For those navigating the abolition of non-dom status, the Donor-Advised Fund (DAF) has become a primary vehicle for spreading risk and managing international giving.
United States: The Business of Philanthropy under the OBBBA
The US has long been the most generous jurisdiction for charitable deductions, but the One Big Beautiful Bill Act (OBBBA), enacted in mid-2025, has introduced significant “floors” and “caps” for the 2026 tax year.
The New Floors for Itemizers
For the first time, donors face a 0.5% AGI floor. This means if you have US$1 million in Adjusted Gross Income, you lose the deduction on the first US$5,000 of your giving. Furthermore, the tax benefit of itemized deductions for those in the top 37% bracket is now capped at 35%.
Strategic “Bunching”
The OBBBA has changed donor behaviour. We are seeing a move toward “bunching”, donating multiple years’ worth of contributions into a single tax year to clear the 0.5% floor and maximize the deduction.
On the estate tax side, the federal exemption has risen to US$15 million per individual for 2026. However, with state and federal transfer taxes still potentially reaching 50%, charitable bequests remain a vital instrument in business international tax and estate planning.
Spain: A More Generous Ley de Mecenazgo
While the UK and US have tightened their rules, Spain has moved in the opposite direction. Following the 2024 reforms (Real Decreto-ley 6/2023), the Spanish regime is now significantly more attractive for residents engaging in the business of philanthropy.
Enhanced Deductions for Individuals (IRPF)
For individuals donating to qualifying fundaciones or associations, the deduction in cuota íntegra is now structured as follows:
- 80% deduction on the first €250 (up from €150).
- 40% deduction on anything above €250.
- 45% “Recurrent Donor” uplift: If you have given the same or a greater amount to the same entity for the past two years, your deduction on the excess rises to 45%.
For priority programmes (actividades prioritarias de mecenazgo), these rates can even climb to 50%. The deduction base is generally capped at 10% of the taxpayer’s taxable income.
Modernising Philanthropy
Spain has also resolved long-standing issues regarding “recompensa” (rewards) and “cesión de uso” (loans of property). Donors can now receive symbolic goods or services (up to 15% of the donation value or €25,000) without losing the tax break. This brings Spanish law closer to the US “qualified sponsorship” model, easing the path for naming rights and corporate gala recognitions.
Cross-Border Friction in The Business of Philanthropy
Despite the sophistication of these three systems, they rarely “speak” to each other. A UK charity is not automatically a 501(c)(3) in the eyes of the US IRS, and a US public charity is rarely recognized as a “charity” by HMRC.
The practical workarounds remain transactional and structurally complex:
- Dual-Qualified Vehicles: Using intermediaries like CAF America or Prism the Gift Fund to bridge the gap.
- “Friends of” Entities: Establishing US-based 501(c)(3) organisations to support specific Spanish or UK institutions.
- Transnational Giving Europe: Using the Fundación Empresa y Sociedad route for Spanish donors giving within the EU.
For many international families, the Anti-Money Laundering (AML) and beneficial-ownership compliance required to set up these structures is often a bigger hurdle than the tax itself.
Strategic Takeaways for The Business of Philanthropy in 2026
Understanding the business of philanthropy means acknowledging that the timing and structure of your gift are now just as important as the cause you are supporting.
- Vehicle Choice Matters: Whether it is a DAF in the UK, a private foundation in the US, or a fundación in Spain, the choice of vehicle dictates your control and your tax efficiency.
- Timing is Everything: In the US, “bunching” is the new norm to overcome the 0.5% floor. In Spain, building “recurrent donor” status over three years is the key to unlocking the 45% deduction.
- Governance is Non-Negotiable: With the UK’s new “outcome” test and increased global scrutiny on “impact,” charities must be prepared to provide the rigour and data that modern donors demand.
Philanthropy in 2026 is no longer just about generosity; it is about the “Business of Philanthropy.” Navigating these three jurisdictions requires a proactive approach to ensure that your capital achieves the maximum possible impact while remaining tax-efficient.
At Del Canto Chambers, we specialize in bridging these legal gaps. If you are managing a cross-border estate or planning a significant philanthropic move, our team is here to help you structure your generosity for the long term.
