Legacy and Philanthropy Planning for Wealthy Families

Philanthropy as a planning discipline

For wealthy families, the question of legacy goes beyond succession of financial assets. It encompasses the transmission of values, purpose, and commitment to causes that matter. Structured philanthropy — planned, systematic, purposeful charitable giving — addresses all of these dimensions simultaneously, while also offering significant tax planning opportunities.

This guide sets out the main vehicles for philanthropic planning available in the UK: the private family foundation, the donor advised fund, and the charitable remainder trust. It also examines impact investing, the IHT charitable giving incentive, and the governance considerations that determine whether a family philanthropy programme succeeds or fragments over time.

The inheritance tax incentive

The UK tax system provides two distinct IHT incentives for charitable giving.

First, gifts to registered charities are wholly exempt from inheritance tax, whether made during lifetime or on death. A donation of £500,000 to charity on death removes that £500,000 from the taxable estate entirely, saving up to £200,000 in IHT.

Second, the reduced rate: where a deceased person leaves at least 10 per cent of their net estate to charity, the IHT rate on the remainder of the estate is reduced from 40 per cent to 36 per cent. For estates above the nil-rate band threshold, this can produce meaningful savings on the taxable portion.

The combination of these two rules means that charitable giving in estate planning is almost always more tax-efficient than leaving the same money to non-charitable beneficiaries after tax. For families with large estates who already have a charitable inclination, structured giving is genuinely cost-efficient from a tax perspective — HMRC effectively subsidises the philanthropic intent.

During lifetime, UK taxpayers benefit from Gift Aid on cash donations: higher and additional-rate taxpayers can reclaim the difference between the basic rate Gift Aid supplement already added by the charity and their marginal rate. A donation of £800 costs a higher-rate taxpayer £600 after Gift Aid reclaim. Gifts of qualifying shares and land to charity are free of CGT and receive income tax relief on the market value.

The private family foundation

A private charitable foundation is an independent charity, registered with the Charity Commission, established to pursue specific charitable purposes. It is governed by trustees — typically family members alongside independent trustees — and operates under the Charities Act 2011.

The foundation can employ family members in executive roles, provided this is properly authorised and on commercial terms. Some families use this as a way of giving younger generations a purposeful role in the family enterprise: managing grant applications, researching causes, administering programmes.

Set-up costs range from approximately £5,000 to £25,000 for a professionally established foundation, depending on complexity and legal costs. Ongoing costs include Charity Commission filing requirements (annual reports and accounts), audit requirements for foundations above certain income thresholds, and professional administration. The foundation's accounts are publicly visible on the Charity Commission register, which is an important consideration for families who value privacy.

The foundation is the most flexible long-term vehicle: it has no mandatory minimum grant-making rate, can hold a wide range of investments, and can operate in perpetuity. It is best suited to families committed to an ongoing philanthropic programme, with annual giving intentions sufficient to justify the running costs.

A foundation established by deed of gift during the settlor's lifetime is an absolute transfer — the assets leave the estate immediately, which is important for IHT planning. A testamentary foundation established by will is effective on death. Both approaches qualify for charity exemption.

The donor advised fund

The donor advised fund (DAF) is a faster and less expensive alternative to establishing a private foundation. The donor makes an irrevocable gift to a DAF host organisation — in the UK, the Charities Aid Foundation (CAF) is the largest and best-known provider. The donor receives full tax relief (Gift Aid, income tax relief) immediately on the gift.

The DAF host invests the funds. The donor recommends grants from the DAF account over time — the host organisation approves grant recommendations, but in practice follows donor wishes provided the recipient is a qualifying charity. Grants can be made to any registered charity in the UK and internationally (subject to the host organisation's policies on overseas grant-making).

The key advantages over a private foundation are speed (a DAF account can be set up in days rather than months), cost (no legal establishment costs), administration (the host handles Charity Commission compliance), and privacy (the individual's name need not be on a public register). The key limitation is that the donor does not control the investment of the fund, and cannot employ family members or create a family governance structure in the same way as a foundation.

DAFs are particularly well suited to: donors who receive a one-off large sum (a business sale, an inheritance, a significant bonus) and want to commit to charity immediately to capture the tax relief, while retaining flexibility to decide exactly which causes to support over the following years; and donors who want to give internationally without the complexity of establishing their own foundation's international grant-making capability.

The endowment approach

The endowment model — exemplified by major university and cultural institutions — involves donating assets sufficient to generate a perpetual income stream for charitable purposes. The principal is preserved and invested; only the income (or a prudent drawdown of total return) is distributed as grants.

At the family level, this can mean establishing a foundation or donating to an existing institution's endowment fund with the intention that the gift continues to generate charitable impact in perpetuity. Some families establish named endowments within existing charities — a named professorship, a named prize, a named room — which provides legacy visibility without the administrative burden of a standalone foundation.

For large donations, direct endowment into a major institution's professionally managed investment pool also provides better investment governance than most small family foundations can achieve independently.

Impact investing

Impact investing sits between grant-making and conventional investing. The investor accepts a financial return — which may be below market rate, at market rate, or (in some cases) above market rate — in exchange for measurable social or environmental impact. Common categories include social impact bonds, community development finance institutions, clean energy projects, affordable housing funds, and healthcare access investments.

The UK impact investing market has grown significantly, supported by institutions including Big Society Capital and the Global Steering Group for Impact Investment. For families seeking to align the management of their investment portfolio with their philanthropic goals, impact investing offers a way to put a proportion of the portfolio to work in causes that matter, without making an outright donation.

Impact investments do not receive the same tax treatment as charitable gifts. Social Investment Tax Relief (SITR), which once offered income and capital gains tax relief on qualifying investments in social enterprises, closed to new investment on 6 April 2023 and is no longer available. Treat impact investing as an investment approach, not as a tax planning tool.

Family governance and values transmission

The practical success of family philanthropy depends as much on governance as on legal structure. Families with a shared sense of purpose — where next-generation members are genuinely engaged with the philanthropic mission — sustain their giving programmes across generations. Families where the foundation is imposed by a patriarch or matriarch without the next generation's involvement often see the programme dissolve or become merely administrative.

Best practice involves: a family philanthropy charter setting out the mission, values, and areas of focus; regular family meetings to discuss grant decisions; graduated involvement of younger family members — starting with smaller grant decisions and building to trustee responsibilities; and independent trustees to provide governance oversight and continuity.

Legacy planning is ultimately about more than money. A thoughtfully governed family philanthropy programme can be one of the most enduring and unifying legacies a family creates.

Charitable giving decisions should be made with professional legal and tax advice, particularly for large donations, foundations, and international grant-making. Charity law and tax rules change. This guide is for information only.

How Global Investments can help

Global Investments works with wealthy families on the integration of philanthropic planning with estate planning, tax strategy, and investment management. We can model the IHT and income tax implications of different giving structures, help families think through the governance of a foundation or DAF programme, and connect clients with specialist charity solicitors and Charity Commission advisers where required. Contact our private client team to discuss your family's legacy goals.