Four Requirements Your Trust Must Meet to Protect an Inherited IRA

A trust has no life expectancy. That sounds like a riddle, and it is the reason a perfectly good trust can quietly cost a family years of tax deferral.

Federal law sets the speed at which an inherited retirement account has to be emptied by looking at the beneficiary, and it counts only human beings. A designated beneficiary has to be an individual. A trust is not one. If the tax law took your beneficiary form at face value, naming a trust would produce the worst available outcome every single time.

There is a fix. When a trust meets four specific requirements, the law looks through it and treats the people behind it as the beneficiaries. That is a see-through trust. Whether your trust qualifies has very little to do with your intentions or with how well the document was drafted in general. There are four boxes, and all four of them have to be checked.

The four requirements

All four sit in one regulation, Treas. Reg. § 1.401(a)(9)-4(f)(2), and all four are refreshingly concrete.

First, the trust has to be valid under state law. Most of the time nobody has to think about this at all. It matters for homemade documents, for trusts signed without proper witnesses, and once in a while for a trust whose validity somebody actually contests after a death.

Second, the trust has to be irrevocable, or it has to become irrevocable when you die. A standard single-settlor revocable living trust is fine, because it becomes irrevocable at your death. Two structures are not fine, and both of them are common. A joint revocable trust of the kind a lot of married couples use often stays fully amendable by the surviving spouse after the first death, so it can fail this requirement on the first death. Any trust that gives a spouse or a trust protector a continuing power to amend the retirement benefit provisions has the same trouble.

Third, the beneficiaries have to be identifiable from the trust instrument. Somebody reading the document has to be able to work out who can receive the retirement money. "My descendants" is identifiable. "Such of my friends as my trustee deems worthy" is not.

Fourth, the documentation requirement has to be satisfied. That one is a deadline, and it is the one that gets missed. More on it below.

Notice what is missing from that list. The older regulations included a fifth requirement, that every beneficiary be an individual. The 2024 final regulations moved that analysis into a separate step, and the result is worth saying plainly. A trust can satisfy all four of these requirements and still leave your family with the worst possible payout.

The four requirements answer whether the law looks through the trust at all. Once it does look through, it asks whether every person it now sees is a human being. If a charity, or your estate, or another trust is among the ones that get counted, then there is no designated beneficiary after all, even though your trust cleared every requirement above. Those two steps get collapsed into one all the time, and that is usually where the confusion starts.

What failure actually costs

Failure does not trigger a penalty or a fine. What it does is shorten the payout period, and how much depends on when you died.

If you died before your required beginning date, which is generally April 1 of the year after you turn 73, or 75 if you were born in 1960 or later, the account has to be emptied within five years. No annual minimums, no extensions. A Roth IRA carries no lifetime required distributions, so a Roth owner is always treated as having died before the required beginning date. A failed trust holding a Roth means five years, every time.

If you died on or after your required beginning date, the account pays out over your own remaining life expectancy. People call this the "ghost" life expectancy. For somebody who died in their mid-seventies that can actually run longer than ten years, so failure is not always a payout disaster.

It is always an administrative disaster. There are no separate shares for different beneficiaries. There is very little ability to time withdrawals around a beneficiary's income, and almost no planning flexibility left. When the failure came from a defect in the document instead of a missed deadline, nobody discovers it until the person who could have fixed it is gone.

Deadlines your family will not know about

These are the failures I see most often. They happen after a death, during grief, when nobody is thinking about tax regulations.

Start with the nine-month disclaimer window. When the cleanest fix is for somebody to refuse an inheritance, a qualified disclaimer has to be delivered within nine months of the death. 26 U.S.C. § 2518. That is the shortest of the clocks and the easiest one to miss, because it starts running immediately and nobody sends a reminder.

September 30 of the year after the death is the beneficiary determination date. That is when the law counts who the beneficiaries are, so anything meant to clean up the picture has to be finished before it. Cashing out a charitable share that would otherwise spoil the analysis. Exercising a power of appointment. Making a permitted modification to trust terms. Treas. Reg. § 1.401(a)(9)-4(c) (the determination date generally); § 1.401(a)(9)-4(f)(5)(ii)–(iii) (powers of appointment and permitted modifications). That date is very useful. It is a real second chance to fix a problem the document created, but only if somebody knows it exists.

Then there is October 31 of the year after the death, the documentation deadline. By then the trustee has to deliver the required trust documentation to the plan administrator or the IRA custodian. Treas. Reg. § 1.401(a)(9)-4(h)(3). The same date applies to the certification needed to establish that a beneficiary is disabled or chronically ill. § 1.401(a)(9)-4(e)(7).

That is the whole obligation. Send a document, meet a date. It gets missed all the time, because a trustee who has never administered a trust before does not know to do it and the custodian does not always ask. A perfectly drafted trust can fail on a clerical omission. Tell your trustee. Better yet, leave written instructions with the trust.

Five ways trusts get this wrong

A charity in the wrong place is the one I see most. You leave your IRA to a trust for your children, and the trust says that if none of your descendants survive, the remainder goes to your church. That is a generous and completely ordinary provision, and in an accumulation trust it can be fatal, because a charity is not an individual. There are answers. Draft so the charity's share is funded out of non-retirement assets. Use a conduit structure, where remainder beneficiaries do not get counted. Or, if the charity holds a current dollar or fractional share, pay it out before September 30. If the charity is only a contingent remainderman there is nothing to pay out, so the fix is a permitted post-death modification removing it by that same September 30, assuming the document and state law allow one. All of these depend on somebody noticing the problem first.

Then there is "to my estate" as a fallback. An estate is not an individual either, so a contingent provision routing the account to your estate can collapse the analysis. This shows up on custodian forms about as often as it shows up in trusts.

A class of beneficiaries nobody can pin down does the same damage. "My issue and such other persons as my trustee selects" is not identifiable. Sweeping powers of appointment used to be a serious risk here, and the 2024 regulations improved things. A power of appointment does not automatically break identifiability, and if the power is exercised by that September 30 date the appointees get counted. Treas. Reg. § 1.401(a)(9)-4(f)(5)(ii). An unexercised, unrestricted power sitting in a document nobody has reviewed is still a live problem.

The fourth one is not really a see-through failure, but it produces the same unpleasant surprise. The law gives a longer payout to a minor child of the account owner, and it means your own child, under a specific statutory definition. Grandchildren, nieces and nephews do not qualify on that ground no matter how young they are. "Minor" also means under 21 as a matter of federal law, not your state's age of majority. Treas. Reg. § 1.401(a)(9)-4(e)(3). A trust for young grandchildren gets ten years, unless a grandchild happens to qualify on some other ground, as a disabled or chronically ill beneficiary for instance.

The most expensive failure is a special needs trust that does not qualify as one for these purposes. An accumulation trust for a disabled or chronically ill beneficiary does not get a life-expectancy payout unless it meets the requirements for an applicable multi-beneficiary trust under Treas. Reg. § 1.401(a)(9)-4(g). Those requirements include a provision that no one else may have any right to the retirement account until that beneficiary has died. A trust that says "distribute the remainder among my children" instead of holding it until the disabled beneficiary's death can lose the exact benefit it was created to secure.

What to do about it

If you have a trust and a retirement account, here is what I would do.

Have the language checked against the current regulations. Not the trust in general, just the specific provisions about retirement benefits. Documents drafted before 2020 were written under a law that has been rewritten twice since, and the 2024 final regulations changed how the analysis runs. This is a focused review. It does not mean starting over.

Read your beneficiary form. I mean the custodian's form, the one the custodian has in its file. Check that it names the trust by its exact name and date, and check that nothing on it routes the account to your estate. If you restated your trust and never updated the form, that mismatch by itself can cause a problem.

Write your trustee a note. Nine months, September 30, October 31, what has to be sent and to whom. One page, kept with the trust. It costs nothing and it addresses the most common failure in this area.

None of this is exotic. It is a document review and a form. It goes wrong because retirement accounts sit in a blind spot between the lawyer who drafted the trust and the advisor who holds the account, and each one assumes the other is watching.

Somebody should be watching.

Questions people actually ask

What is a see-through trust?

A see-through trust is a trust named as beneficiary of a retirement account that meets four requirements in Treas. Reg. § 1.401(a)(9)-4(f)(2). When it meets them, federal tax law looks through the trust and treats the individuals behind it as the beneficiaries for payout purposes.

What are the four see-through trust requirements?

The trust has to be valid under state law. It has to be irrevocable, or become irrevocable at the account owner's death. Its beneficiaries have to be identifiable from the trust instrument. And the trustee has to satisfy the documentation requirement by delivering trust documentation to the plan administrator or IRA custodian.

When is the trust documentation due to the IRA custodian?

October 31 of the calendar year after the year of the account owner's death. Treas. Reg. § 1.401(a)(9)-4(h)(3). The same deadline applies to the certification that a beneficiary is disabled or chronically ill.

What happens if a trust fails the see-through requirements?

There is no designated beneficiary. If the owner died before the required beginning date, the account has to be emptied within five years. If the owner died on or after that date, it pays out over the owner's own remaining life expectancy.

Does naming a charity as remainder beneficiary ruin a trust that holds an IRA?

It can, in an accumulation trust, because a charity is not an individual. It does not matter in a conduit trust, where remainder beneficiaries are never counted. A charitable share can sometimes be cashed out, or the provision removed by permitted modification, before September 30 of the year after the death.

Do grandchildren count as minor children for the extended payout?

No. The minor-child rule applies only to a child of the account owner. Treas. Reg. § 1.401(a)(9)-4(e)(3). A grandchild gets ten years unless they qualify on another ground, such as being disabled or chronically ill.

Does a joint revocable trust satisfy the irrevocability requirement?

Often it does not, at least on the first death. If the surviving spouse can still amend the trust, including the retirement benefit provisions, the trust was not irrevocable at the first spouse's death and it can fail on that ground.

The Law Office of Jacobie K. Whitley works with individuals and families in the District of Columbia and Maryland on estate planning, trusts, and business succession. If your trust names a retirement account beneficiary, or you are not sure whether it does, that is worth confirming while it can still be changed. You can book an estate planning session.

This article covers federal tax law as of August 2026 and is general information, not legal or tax advice. It does not create an attorney-client relationship, and nothing here promises a particular result. These requirements are technical, the deadlines are real, and most failures cannot be corrected after somebody has died. Jacobie K. Whitley is licensed in the District of Columbia and Maryland. Please talk to an attorney about your own situation.