Why People Actually Leave Money to Charity in Their Will

If you sit down with a hundred people who have included a charity in their will and ask them, honestly, why they did it, you will hear something surprising.

They will not give you one clean answer. They will give you three overlapping ones, in a rough order that keeps shifting as they talk.

That messy layered honesty is the real texture of legacy giving — and it is the part that almost never appears in charity brochures. This piece is going to walk you through the six motivations that decades of donor research consistently identifies, the kinds of stories that anchor each one, the books worth reading if you're thinking about doing this yourself, and the organisations that have quietly built themselves around helping people make this choice well.

The Six Motivations, In the Order They Actually Show Up

Researchers who study legacy giving — most notably Russell James at Texas Tech, whose work sits behind a large share of the industry's understanding of donor behaviour, and Legacy Futures in the UK, which publishes some of the most comprehensive donor benchmark reports — keep finding roughly the same six drivers. They rarely appear alone. Most donors are motivated by at least three of them at once.

1. Identity — the will as a statement of who you were.

This is the motivation people rarely name first but almost always circle back to. A will distributes assets to family, which is largely automatic. A charitable clause is different. It is the one place in your estate documents where you get to say, in your own choices, what you actually stood for during the years you were here.

Interview after interview turns up the same phrase in different words: "I wanted my name to be attached to something that mattered." People describe the charitable line in their will as the one they were most sure of, the one they least wanted to change, and the one they most wanted their grown children to eventually read.

The values-letter version of this same instinct — where the statement is written directly to the family rather than through a charity — sits at the centre of the guide to writing a values letter. The bequest is that letter in financial form.

2. Tribute — the gift anchored to a specific person.

A surprisingly large share of charitable bequests are anchored to one particular person the donor loved. A parent who passed of a specific illness, and the gift goes to research on that illness. A teacher who altered the donor's course, and the scholarship at the school. A child who was helped by an organisation, and the bequest that keeps that organisation running for other children.

These gifts are almost never described by the donor as "giving money." They are described as honouring someone. The charity becomes the vehicle through which the honouring persists after the donor is no longer able to do the honouring in person.

3. Cause-loyalty — the decades-long relationship that finally gets its final gift.

Most legacy donors have been giving to the same charity for ten, twenty, sometimes forty years before the bequest is added to the will. The relationship is long. The knowledge of the organisation is deep. The trust is earned rather than granted.

This is the motivation that best explains why charities pursue legacy giving so patiently. The donor who leaves a residuary bequest to their local hospice is almost always someone who has been giving to that hospice for a generation. The bequest is the last decision in a long relationship, not the first.

4. Tax efficiency — the reason people don't always say out loud but always factor in.

Charitable bequests reduce the taxable estate dollar-for-dollar in the US and qualify for meaningful inheritance-tax relief in the UK (where leaving 10% or more of the net estate to charity reduces the inheritance-tax rate on the rest from 40% to 36%). For donors with estates large enough to be taxable, the after-tax cost of a bequest is significantly lower than the face value, which often makes a more generous gift feel surprisingly affordable.

Donors rarely describe tax efficiency as their primary reason. But it consistently appears in interviews as the reason the gift ended up larger than they had originally been thinking of. The other five motivations decide whether to give. Tax efficiency often decides how much.

5. Faith or duty — the moral framework that gives the gift a category.

For a substantial share of legacy donors, the decision sits inside a larger framework — religious, philosophical, or civic — that treats charitable giving at passing as a natural or expected part of a life well-lived. This is not always explicitly religious. Some donors describe it as "giving back." Others describe it as "closing the loop." A meaningful share still describe it in the language of their faith tradition, particularly in the US, where roughly two-thirds of all charitable giving traces back to donors with an active religious affiliation.

The specific words vary. The underlying instinct — that you belong to something larger than your own family, and that the will is the last place to say so — appears in a large percentage of legacy donor interviews.

6. The absence of natural heirs — or the deliberate decision to divert some of what would have been theirs.

Two related but distinct groups end up in this category.

The first is donors without children, or without close family. For solo agers and childfree adults, the question is not "should I include a charity" but rather "who else, if not a cause I care about." The bequest is often the largest single decision in the entire estate plan and is treated with the seriousness that scale deserves.

The second is donors with children who have decided, sometimes controversially inside the family, that not all of the inheritance should go down the family tree. This is the group that shows up in the news whenever a famous name — Warren Buffett, Bill Gates, Ted Turner, Mick Jagger, Sting — publicly explains the reasoning. The recent piece on Ted Turner's estate and Giving Pledge choice covers what that decision looks like at scale, and the piece on Sting's blunt framing of inheritance as "a form of abuse" covers the values argument behind it. Most donors in this group are not billionaires. They are middle-class parents who have decided, with their children's knowledge, that a portion of the estate belongs to a cause rather than to the next generation.

What the Case Studies Actually Look Like

The public record of legacy bequests is filled with cases that fit these six patterns in different combinations. A few composite examples that mirror real cases without naming specific individuals.

The retired teacher. A woman in her early eighties, teaching career of thirty-eight years, no children of her own. Her will leaves modest gifts to her nieces and nephews and the residual estate — around $340,000 after the small house is sold — to a named scholarship fund at the school where she taught the longest. Her motivations, in her own words: identity (she wanted her name attached to a scholarship that funded students who reminded her of the ones she taught), cause-loyalty (a thirty-year relationship with that school), and the absence of natural heirs.

The bereaved father. A father in his sixties whose adult son passed of a rare autoimmune condition. His will names a foundation focused on research into that condition and directs 25% of the residual estate to it, with the remainder going to his surviving daughter. His stated motivation is tribute — the gift is described in the will itself as "in memory of my son, and to help other families avoid what ours has been through." Tax efficiency plays a role in the exact percentage chosen.

The Silicon Valley engineer. A man in his late fifties, no children, with $6.3 million in assets accumulated over a two-decade tech career. His will leaves specific gifts to a sister, two nephews, and three friends, and directs the residual estate — about $4.8 million — to a mix of conservation charities and a scholarship at his undergraduate university. Motivations: identity, tax efficiency (the estate is above his state's estate tax exemption), cause-loyalty (fifteen years of consistent giving to the same conservation groups), and the absence of natural heirs.

The couple with adult children. A married couple in their late sixties, three adult children, combined estate of about $2.4 million. They leave the bulk to the children in equal shares but have added a residuary bequest of 10% to a hospice that cared for the wife's mother in her final months. Motivations: tribute (the hospice), cause-loyalty (they have volunteered there for eight years), and faith (both are active in a church tradition that emphasises charitable giving at passing). The children are aware and have expressed support.

None of these are exceptional. All of them are the shape most legacy gifts actually take.

Books Worth Reading If You're Thinking About This

A short reading list that consistently comes up in the conversations around this topic.

"Die With Zero," by Bill Perkins. Not specifically about charity, but the argument — that most people underspend during life and leave suboptimal amounts to heirs at passing — reframes the entire question of what a will is for. Useful if you have never questioned the default of leaving everything to family.

"The Soul of Money," by Lynne Twist. A philosophical, personal book on the relationship between money and meaning. Not a how-to guide, but one of the most widely recommended reads for donors who are trying to articulate why they want to give — not just how.

"Giving Done Right," by Phil Buchanan. More practical, aimed at people who have decided to give and want to give effectively. Useful for anyone considering a substantial bequest and thinking about how to structure it so the money actually accomplishes what they intended.

"Half Time," by Bob Buford. Written primarily for people in their fifties and sixties transitioning from career success to a second-act focused on meaning. The framing is Christian but the ideas travel well, and the book has quietly shaped how a lot of donors in that age range think about the legacy stage of life.

"The Giver," and related fiction. Not conventionally on a giving reading list, but worth noting: many donors describe fiction and memoir — books that put them inside the experience of the causes they eventually chose to fund — as more influential than any nonprofit annual report ever was.

Organisations Worth Knowing About

A small map of the ecosystem that has grown up around this decision.

The Giving Pledge. Started in 2010 by Warren Buffett and Bill Gates. Signatories publicly commit to giving away the majority of their wealth during their lifetime or at their passing. Now more than 240 signatories across 30+ countries. The public letters signatories write when they join are, quietly, one of the richest public archives of donor motivation in the world — worth reading if you're trying to articulate your own reasoning.

Legacy Futures (UK). The leading UK research organisation on legacy giving. Publishes benchmark reports, tracks donor behaviour trends, and does more transparent quantitative work on this topic than almost anyone else in the sector.

FreeWill. A US platform that lets people create a legal will online at no cost. Their model — free wills, partnerships with charities — has meaningfully expanded the number of Americans who have a will at all, and by extension the number who include a charitable clause.

Charity Navigator. For donors evaluating which organisations to include. Rates US charities on financial health, accountability, and transparency. Not perfect, but a useful starting filter.

GiveDirectly, Founders Pledge, Effective Ventures. The infrastructure of the "effective altruism" wing of giving. Different in philosophy from traditional legacy giving but worth knowing about if you approach the question from an outcomes-focused frame.

Your local community foundation. Almost every US city has one. They pool bequests from many donors, distribute the proceeds to local causes, and act as a professional intermediary if you would like your bequest managed rather than paid to a specific organisation. Especially useful for donors who care about a general area — "education in my county," "environmental protection in the Pacific Northwest" — rather than one named charity.

The mechanics of how any of these gifts move through the estate to the charity are covered in the earlier walk-through of how legacy fundraising actually works.

The Question Worth Asking Yourself

If you have read this far and one of the six motivations resonated more than the others, that resonance is probably telling you something.

Not everyone should include a charity in their will. For some readers, the answer is clearly no — the money is needed by family, the causes have never been that central, the relationship with any organisation is too shallow to make the decision easy. That is a legitimate answer.

For other readers, the question has never quite been asked directly. There has been a cause that mattered for years. There has been a person you loved whose absence you still feel. There has been a moment somewhere along the line when you thought, "I want this to keep going somehow." If any of that sounds familiar, the six motivations above are probably some combination of what's already true for you. The bequest is what happens when that truth gets written into a document.

The next step is not to make the gift. The next step is to sit with the question long enough that the shape of the answer becomes clear — which cause, in what proportion, for what reason. That thinking takes a while and does not need to be rushed. The broader conversation about wealth transfer and family is often the natural place for that thinking to happen alongside your family rather than alone.

Once the shape is clear, the mechanics are straightforward. Most bequests are one sentence added to a will you already have, using the ordinary will-writing framework and the standard clause your chosen charity will happily send you on request.

The reason people leave money to charity in their will is almost never that they wanted to help a stranger. It is that a stranger had, for years, been quietly helping them make sense of something — an illness, a memory, a value, a person, a version of the world they hoped could keep going after they were no longer here to help hold it in place. The bequest is what happens when that quiet exchange finally gets acknowledged in writing.

If a cause has been holding one of those quiet exchanges with you for years, the sentence in your will that acknowledges it is shorter and simpler than the thinking behind it.

You don't have to be wealthy. You don't have to be certain. You just have to be willing, at some point, to write the one sentence that says, in your own words, what part of the world you wanted to keep tending after your own tending was done.