Four Requirements Your Trust Must Meet to Protect an Inherited IRA

A trust can't have a life expectancy. That sounds like a philosophy problem, but it's the reason a perfectly good trust can quietly cost a family years of tax deferral.

Federal law decides how fast an inherited retirement account must be emptied by looking at the beneficiary, and it only counts human beings. A designated beneficiary has to be an individual, and a trust isn't one. If the tax law simply took your beneficiary form at face value, naming a trust would always produce the worst available outcome.

There's a fix. Where a trust meets four specific requirements, the law looks through it and treats the people behind it as the beneficiaries. That's a see-through trust. Whether your trust qualifies isn't a question of your intentions or of good drafting in general — it's four boxes, and all four have to be checked.

The four requirements

They all sit in one regulation, Treas. Reg. § 1.401(a)(9)-4(f)(2), and they're refreshingly concrete.

The trust must be valid under state law. This is usually satisfied without anybody thinking about it. It matters for homemade documents, for trusts signed without proper witnesses, and occasionally for a trust whose validity someone actually contests after a death.

The trust must be irrevocable, or must become irrevocable when you die. A standard single-settlor revocable living trust satisfies this, because it becomes irrevocable at your death. Two structures don't, and both 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 problem.

The beneficiaries must 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.

Finally, the documentation requirement must be satisfied. That one is a deadline, and it's the one that gets missed. More on it below.

Notice what isn't on 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 stating 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, there's no designated beneficiary after all, even though your trust cleared every requirement above. Those two steps often get collapsed into one, which is where the confusion tends to start.

What failure actually costs

Failure doesn't trigger a penalty or a fine. It shortens 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 must be emptied within five years. There are no annual minimums and no extensions. Because a Roth IRA carries no lifetime required distributions, a Roth owner is always treated as having died before the required beginning date, so 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, often called the "ghost" life expectancy. For somebody who died in their mid-seventies that can actually run longer than ten years, so failure isn't always a payout disaster.

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

Deadlines your family won't 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. Where the cleanest fix is for someone to refuse an inheritance, a qualified disclaimer must be delivered within nine months of the death. 26 U.S.C. § 2518. That's 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's when the law counts who the beneficiaries are, so anything intended 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 genuinely useful — a real second chance to fix a problem the document created, but only where somebody knows it exists.

Then there's October 31 of the year after the death, the documentation deadline. By then the trustee must 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's 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 doesn't know to do it and the custodian doesn't always ask, and a perfectly drafted trust can fail on a clerical omission. Tell your trustee, or better, 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's a generous and completely ordinary provision, and in an accumulation trust it can be fatal, because a charity isn't 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 don't get counted, or, where the charity holds a current dollar or fractional share, pay it out before September 30. Where the charity is only a contingent remainderman there's 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 require somebody noticing the problem first.

Then there's "to my estate" as a fallback. An estate isn't 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 causes the same result. "My issue and such other persons as my trustee selects" isn't identifiable. Sweeping powers of appointment used to be a serious risk here, and the 2024 regulations improved things: a power of appointment doesn't automatically break identifiability, and where 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 isn't 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, using a specific statutory definition. Grandchildren, nieces and nephews don't qualify on that ground no matter how young they are. "Minor" also means under 21 as a matter of federal law rather than 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 doesn't qualify as one for these purposes. An accumulation trust for a disabled or chronically ill beneficiary doesn't 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), and those 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

Three things are worth doing if you have a trust and a retirement account.

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

Read your beneficiary form, meaning the custodian's form rather than the trust. 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 alone 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's 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 assumes the other is watching.

Somebody should be watching.

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 aren't sure whether it does, that's worth confirming while it can still be changed.

This article covers federal tax law as of August 2026 and is general information rather than legal or tax advice. It doesn't create an attorney-client relationship, and nothing here promises a particular result. These requirements are technical, the deadlines are real, and most failures can't 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.