Glossary term

Charitable Lead Annuity Trust (CLAT)

A charitable lead annuity trust, or CLAT, is an irrevocable split-interest trust that pays a fixed annuity amount to charity for a set term, with the remaining assets passing to noncharitable beneficiaries afterward.

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Written by: Editorial Team

Updated

April 21, 2026

What Is a Charitable Lead Annuity Trust (CLAT)?

A charitable lead annuity trust, or CLAT, is an irrevocable trust that pays a fixed annuity amount to one or more charities for a stated term, with the remaining trust assets passing to noncharitable beneficiaries after the lead term ends. It is a split-interest charitable trust because the economic benefit is divided between a charitable interest first and a family or other private remainder interest later.

The word annuity is important here. The charitable payment is a fixed dollar amount or a fixed percentage of the assets contributed at the start, not a payment that resets every year based on the trust's changing market value. That fixed-payment structure is what makes a CLAT different from a charitable lead unitrust.

Key Takeaways

  • A CLAT pays a fixed annuity amount to charity during the lead term.
  • After the lead term ends, the remaining assets pass to noncharitable beneficiaries.
  • The trust is usually structured as an irrevocable trust.
  • The annuity amount is based on the trust's initial value, not on annual revaluation.
  • A CLAT is often used when someone wants to combine charitable giving with transfer planning for heirs.

How a CLAT Works

The grantor contributes assets to the trust and sets the charitable lead term, the annuity amount, and the remainder beneficiaries. The trustee then makes the required annuity payments to the charitable recipient during the stated term. When that term ends, the remaining trust property goes to the named noncharitable beneficiaries, often children or trusts for descendants.

This means the trust has two different economic phases. During the first phase, the charity receives the required stream of payments. During the second phase, the remainder goes to the private beneficiaries. A CLAT works only if the trust assets can support the charitable annuity stream and still leave meaningful value behind at the end.

How the Fixed Annuity Structure Shapes a CLAT

The annuity structure fixes the charitable payout from the start. If the trust earns more than needed to support the annuity payments, that excess growth can remain in the trust and eventually pass to the remainder beneficiaries. If the trust underperforms, less may be left over after the charitable lead term ends.

That makes a CLAT sensitive to investment performance and valuation assumptions. The structure can work well when the trust assets appreciate faster than the hurdle implied by the valuation rules used at funding. If growth is weak, the charitable purpose is still carried out, but the family-transfer result can be much smaller.

CLAT Versus Charitable Remainder Annuity Trust

Trust type

Who gets the annuity first

Who gets the remainder later

CLAT

Charity

Noncharitable beneficiaries

Charitable remainder annuity trust (CRAT)

Noncharitable beneficiary

Charity

This is the easiest way to keep the two structures straight. A CLAT leads with charity and ends with family or other private beneficiaries. A CRAT does the reverse.

Where CLATs Show Up in Planning

CLATs usually appear in advanced estate and gift planning rather than in routine household finance. They are most often considered when someone wants to make a substantial charitable commitment while also trying to move future appreciation to heirs in a tax-efficient way. The trust can be funded with cash, marketable securities, or other assets, but the economics work best when the asset mix can realistically support the fixed charitable payout.

Because the remainder passes only after the lead term ends, a CLAT is usually a long-horizon planning tool. It is less about current spending and more about combining philanthropy, transfer timing, and asset-growth expectations inside one structure.

Tax and Administration Considerations

A CLAT sits in the estate-and-gift-tax planning world, but it also has ongoing trust-administration demands. The trustee has to value assets, make the annuity payments on schedule, keep records, and handle the trust's reporting obligations. Depending on how the trust is drafted, the grantor may also need to understand whether the arrangement is treated more like a grantor trust or a separate trust for income-tax purposes.

The details matter because a CLAT is not just a charitable pledge wrapped in trust language. It is a formal trust arrangement with fixed-payment mechanics, transfer-tax assumptions, and ongoing fiduciary obligations.

Example Charity Receiving the Fixed Payment First and Family Receiving the Remainder Later

Suppose a donor transfers assets into a CLAT that must pay a fixed amount to a charity every year for 10 years. If the trust assets grow enough to support those payments and still appreciate materially, the remaining value at the end of year 10 can pass to the donor's children. If the assets do not outperform the payout burden, the charitable payments still go out, but the remainder for the children may be modest.

The example shows why the term is best understood as a charitable-first annuity trust with a family remainder, not as a generic trust donation vehicle.

The Bottom Line

A charitable lead annuity trust is an irrevocable split-interest trust that pays a fixed annuity amount to charity for a set term and passes the remaining assets to noncharitable beneficiaries afterward. It is most useful when someone wants to combine a defined charitable commitment with long-horizon transfer planning and is comfortable with the trust's fixed-payout structure and administrative complexity.