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Testamentary Trust

A testamentary trust is a trust created by a will, so it comes into existence only at the testator's death and only through probate. That inverts most of the usual reasons for wanting a trust: it avoids no probate, does nothing about incapacity, and its terms sit in a public court file.

Last reviewed by Steven Fox, CFP®, EA on

Quick Summary

  • It is created by the will, so it does not exist while the testator is alive and cannot be funded, used, or relied on before death.
  • No probate avoidance, no incapacity management, no privacy — the will has to be proved in court, and the trust's terms are part of that public record.
  • Its standard job is holding a minor's or young adult's inheritance to an age the testator chooses, rather than handing it over at eighteen.
  • It can be changed at any time until death, because changing it means changing the will.
  • A pour-over will is the opposite arrangement, and one statute says so expressly: property poured over into an existing trust "is not held under a testamentary trust of the testator."

Definition

A testamentary trust is a trust whose terms are written into a will and which comes into being at the testator's death. The will names the trustee, describes the property to be held, sets the distribution standards and the age or event at which the trust ends, and none of it has any legal effect until the testator dies and the will is admitted to probate.

That timing is the whole of the difference between this and a living trust, and everything else follows from it. A living trust is signed, funded and operating while its creator is alive, which is why it can carry someone through incapacity and move property at death without a court. A testamentary trust cannot do either, because on the day those things would be useful it does not yet exist. What it is good at is the one job that only arises after death: receiving property that would otherwise go outright to someone who should not receive it outright.

Advanced Explanation

The trade-off, stated plainly. A testamentary trust is cheaper and simpler to set up than a living trust, because it is a few extra paragraphs in a document most people need anyway, with no separate instrument, no funding exercise and no retitling. What it costs is everything a living trust is usually bought for. The property has to pass through probate to reach it, so the estate carries the delay and the administration expense. The will, and therefore the trust's terms, become part of a public court file when the will is proved. And because it does not exist during life, it offers nothing at all if the testator becomes incapacitated; the documents that answer that question are a durable power of attorney, a healthcare directive, or a funded living trust.

The typical use, and why it is a good one. Without a trust, a minor cannot hold an inheritance directly, and property left outright to a minor generally ends in a court-supervised arrangement over the money until the child reaches the age of majority, at which point they receive it all. A testamentary trust replaces both halves of that: it names a trustee the testator chose rather than one a court picked, and it releases the money at an age the testator chose, which can be twenty-five or thirty or in stages. The same structure works for an adult beneficiary who should not receive a lump sum, whether because of a creditor problem, a disability, or a history the testator does not have to explain in the document.

The line between a testamentary trust and a pour-over will is statutory, not a matter of description. A pour-over will devises property to the trustee of a trust that already exists, or that the will itself brings into being under a separate written instrument. Both states whose enactments are cited on this site say expressly what that property is not. Montana's version of the Uniform Testamentary Additions to Trusts Act provides that, unless the will says otherwise, property devised to such a trust "is not held under a testamentary trust of the testator but it becomes a part of the trust to which it is devised and must be administered and disposed of in accordance with the provisions of the governing instrument setting forth the terms of the trust." California's enactment says the same thing in near-identical words. So the poured-over property runs on the living trust's terms, not on the will's, and the will's own residual clause is not what governs it. A testamentary trust, by contrast, has no governing instrument other than the will.

A tax difference that is easy to miss and occasionally matters. Internal Revenue Code section 644(a) provides that "the taxable year of any trust shall be the calendar year", with narrow exceptions at (b) for tax-exempt and charitable trusts. An estate is under no such requirement: the Internal Revenue Service's own instructions for Form 1041 state that "the estate's first tax year may be any period of 12 months or less that ends on the last day of a month", and that choosing any month other than December adopts a fiscal year. That flexibility can be used to shift a spike of post-death income into a second year. Section 645 lets the executor and the trustee of a qualified revocable trust jointly elect to have that trust treated and taxed as part of the estate for a defined period, which extends the estate's advantages to it. A testamentary trust is not a qualified revocable trust, since it was never revocable and never existed during the decedent's life, so the 645 election is not available to it and it is on the calendar year from the start.

Whether the court keeps watching afterwards is a question for the state, and one state's answer is worth reading. People often assume a trust created by a will stays under the probate judge's eye indefinitely. California's Probate Code says otherwise, and says it narrowly: continuing court jurisdiction over a testamentary trust applies only where the will was executed before 1 July 1977 and not incorporated by reference into a later will, or where the will itself provides that the trust is subject to the superior court's continuing jurisdiction. Under a modern California will, in other words, the supervision exists only if the drafter asked for it. That is one state's rule and not a national one, and no general answer could be established here — so treat ongoing supervision and periodic accountings to the probate court as a question about the state where the will would be probated, not as a feature of the instrument.

How to Remember

A living trust is a container you build and fill while you are alive. A testamentary trust is a set of instructions for building one after you die, and the instructions only get read in court.

Used in a Sentence

“Their wills each created a testamentary trust for the children, so if both parents died before the youngest turned twenty-five the money would be managed by their named trustee rather than handed over on an eighteenth birthday.”

How It Works

  1. The will is drafted with the trust's terms inside it: the trustee and successors, what property funds it, the distribution standards, and when it ends.

  2. Nothing happens for as long as the testator lives. The trust is not signed, funded or operative, and the will can be revised at any time.

  3. The testator dies and the will is offered for probate. The court admits it and appoints the personal representative.

  4. The estate is administered — creditors noticed, claims paid, taxes filed — exactly as it would be without the trust.

  5. The trust is funded from the estate when the personal representative distributes, and only then does it begin to exist as an arrangement.

  6. The trustee administers it on the will's terms, on the calendar year for income tax purposes, until the terminating age or event.

A hypothetical, showing what the trust is protecting against. Rosa dies leaving a nine-year-old daughter and an estate of $340,000 after debts and expenses. Her will creates a testamentary trust naming her sister as trustee, directing distributions for health, education, maintenance and support, and terminating when the daughter reaches twenty-five.

Over the years the trustee pays out about $14,000 a year for school costs and support. Across eight years that is 8 × 14,000 = $112,000, leaving 340,000 − 112,000 = $228,000 of principal before any investment growth or loss, which the daughter receives at twenty-five.

Without the trust the money would have been held for her under a court-supervised arrangement and paid to her in full at the age of majority. The trust changed two things: who chose the person managing it, and how old she was when it stopped being managed. What it did not change is that the estate went through probate, that Rosa's will and its terms are in the public file, and that nothing in the arrangement would have helped if Rosa had become incapacitated rather than dying. Figures are illustrative.

Pros and Cons

Pros

  • Cheap and simple to create: it is additional language in a will rather than a separate instrument, with no funding exercise during life.
  • It puts a trustee the testator chose in charge of a minor's inheritance, instead of a court-supervised arrangement ending at the age of majority.
  • The terminating age is the testator's choice, and distributions can be staged rather than made all at once.
  • It is fully revisable up to death, because revising it means revising the will.
  • It works for an adult beneficiary who should not receive a lump sum, without the testator having to explain why during their lifetime.

Cons

  • No probate avoidance. The property has to pass through the estate to reach the trust, with the delay and expense that involves.
  • No help with incapacity, because the trust does not exist while the testator is alive.
  • No privacy. The will is proved in court, so the trust's terms are in a public record.
  • It cannot make the section 645 election to be taxed as part of the estate, and is on the calendar year from the start, so the estate's ability to adopt a fiscal year does not extend to it.
  • Whether the trust remains under continuing court supervision after the estate closes is a state-by-state question, and where it does the administrative burden is ongoing.
  • It does nothing about assets that pass by beneficiary designation or joint title, which reach the named recipient directly and never enter the estate.

People Also Asked

Answers to the most frequently asked questions.

What is the difference between a testamentary trust and a living trust?
When it exists. A living trust is created and funded while its maker is alive, so it can manage property through their incapacity and pass it at death without probate. A testamentary trust is written into a will and comes into being only at death, and only after the will has been proved in probate. The living trust costs more to set up and requires the funding work; the testamentary trust costs almost nothing to add and gives up probate avoidance, incapacity coverage and privacy in exchange.
Does a testamentary trust avoid probate?
No, and it cannot. The trust is created by the will, so the will has to be admitted to probate for the trust to come into existence at all, and the property has to pass through the estate administration before it can be transferred to the trustee. If probate avoidance is the goal, the instrument that achieves it is a funded living trust, or the beneficiary designations and transfer-on-death registrations that move assets outside the estate entirely.
Is a pour-over will the same as a testamentary trust?
No, and one statute settles it by name. A pour-over will devises property to the trustee of a separate trust, and Montana's Uniform Testamentary Additions to Trusts Act provides that such property "is not held under a testamentary trust of the testator but it becomes a part of the trust to which it is devised," administered under that trust's own governing instrument. California's enactment says the same. A testamentary trust has no separate instrument: the will is its governing document.
Who manages a testamentary trust?
The trustee named in the will, once the estate has funded the trust. That person is often, though not always, the same person nominated as personal representative, and the two jobs are distinct: the personal representative winds up the estate and the trustee then administers the trust for years afterwards. The office carries the ordinary trustee duties, including prudent administration, keeping the property separate, and reporting to the beneficiaries.
How is a testamentary trust taxed?
As a trust, on the calendar year. Internal Revenue Code section 644(a) requires the taxable year of any trust to be the calendar year, with narrow exceptions for tax-exempt and charitable trusts. It also cannot use the section 645 election that lets a qualified revocable trust be treated and taxed as part of the decedent's estate, because it was never revocable and never existed during the decedent's life. Income the trust retains is taxed to the trust and income it distributes is generally carried out to the beneficiaries.

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