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STEWARD BRIEF

What Is a Testamentary Trust?

A Will can do more than make outright gifts. It can also create a trust that begins after death.

Research checked
October 8, 2026
Jurisdiction
United States; trust law varies by state
Sources reviewed
3
General education, not legal advice
ABSTRACT

A testamentary trust is a trust created by the terms of a Will and activated at the testator’s death. Cornell Legal Information Institute defines it as a trust created in a Will that begins upon death. The Will sets the terms, identifies the trustee, and describes how property is to be held or distributed for beneficiaries. Because the trust does not operate during the testator’s lifetime, it is different from an inter vivos or Living Trust. Testamentary trusts are often discussed in connection with property left for younger beneficiaries or other situations where outright distribution is not desired, but the suitability and drafting of a trust depend on state law and individual circumstances.

Question presented

What is a testamentary trust, and how is it different from a Living Trust?

Summary of findings

A testamentary trust is created through a Will and begins at death. A Living Trust is generally created during the settlor’s lifetime. The difference is timing, formation, and how property becomes subject to the trust.

Analysis

The Will contains the trust terms

A testamentary trust is written into the Will. The Will can identify the trustee, the beneficiaries, the property that will fund the trust, and the rules for management and distribution.

It begins after death

Unlike a Living Trust, a testamentary trust does not operate as a separate trust during the testator’s lifetime. It becomes relevant after death when the Will is administered and the property designated for the trust is transferred under the Will’s terms.

Why a Will might use a trust

One common reason is to avoid requiring an immediate outright distribution to a beneficiary. A trust can provide a structure for a trustee to hold and manage property under defined terms. The legal and practical design of those terms can become individualized quickly.

It does not avoid probate in the same way as a funded Living Trust

Because the testamentary trust is created through the Will, the property used to fund it generally comes through estate administration. That is structurally different from property already held in a properly established Living Trust before death.

A trustee has fiduciary duties

A trustee holds and administers trust property for beneficiaries under the trust instrument and applicable law. Trustee duties can include loyalty, prudent administration, recordkeeping, and impartial treatment among beneficiaries when required.

Where the answer varies

Trust law, trustee powers, beneficiary rights, court supervision, termination rules, and the interaction between a testamentary trust and probate vary by state. Drafting choices can have tax, creditor, family, and administrative consequences.

Steward context

Steward’s Will documents may use testamentary provisions where included in the applicable state document design, but Steward does not sell online Living Trusts. If you are considering customized trust terms, special-needs planning, tax planning, asset protection, or another issue requiring individualized legal judgment, you should consult a licensed attorney in your state.