Naming a trust as IRA beneficiary does not, by itself, cost your family extra tax. The money is taxed when it comes out, same as any inherited IRA. What changes is who pays: passed out to you, you pay at your rate; kept in the trust, it pays — and trusts hit the top rate fast.

Why is the tax on an IRA left to a trust so high?

Because trust tax brackets are compressed into a few thousand dollars. For tax years beginning in 2026, Rev. Proc. 2025-32 sets the estate and trust rates at 10% up to $3,300, then 24% to $11,700, then 35% to $16,000, and 37% on everything above $16,000. The same revenue procedure puts a single individual's 37% bracket at income over $640,600.

A $60,000 withdrawal from the inherited IRA, kept inside the trust, runs almost entirely at 35% and 37%. The same $60,000 landing on a beneficiary's personal return, on top of a normal salary, is likely taxed in the 22% or 24% range. Same dollars, same account, roughly double the tax — decided entirely by which return reports it.

The trust didn't add tax to the IRA itself, and the 10-year deadline is the same one every non-spouse beneficiary faces. This is a rate problem, and rate problems are fixable in a way that deadlines are not.

If you're still working out that deadline, start with the inherited IRA 10-year rule; this post is part of our inherited IRA tax planning guide.

Does the trust pay the tax, or do the beneficiaries?

Whoever ends up with the money generally pays the tax on it. When a trust distributes income to its beneficiaries, IRC § 661(a) gives the trust a deduction for "any amount of income for such taxable year required to be distributed currently" plus "any other amounts properly paid," and IRC § 662(a) then includes that same amount "in the gross income of a beneficiary to whom an amount specified in section 661(a) is paid, credited, or required to be distributed."

In plain terms: income the trust pays out is taxed to the people who received it, at their own rates. Income the trust keeps is taxed to the trust, at those compressed rates. The trust files Form 1041 and issues a Schedule K-1 to each beneficiary who got a distribution, and those numbers land on the beneficiaries' personal returns. If you received one of those K-1s and aren't sure where it goes, our guide to reporting an inherited IRA distribution covers the reporting side.

So the practical question is never "is a trust bad?" It's whether this particular trust can pass the money through in the year it comes out of the IRA. That answer is in the document.

What is the difference between a conduit trust and an accumulation trust?

A conduit trust must pass IRA distributions straight out to the beneficiaries; an accumulation trust may hold them. The regulation defines both terms directly. Under Treas. Reg. § 1.401(a)(9)-4, a "conduit trust means a see-through trust, the terms of which provide that, with respect to the deceased employee's interest in the plan, all distributions will, upon receipt by the trustee, be paid directly to, or for the benefit of, specified trust beneficiaries," and an "accumulation trust means any see-through trust that is not a conduit trust."

That distinction is the whole tax story:

Accumulation trusts exist on purpose. Protecting a beneficiary from themselves, from a divorce, or from losing disability benefits can be worth far more than the tax difference. The mistake isn't having an accumulation trust; it's having one by accident and discovering the rate table in April.

What makes a trust a "see-through" trust?

Four conditions, all listed in the same regulation. If they're met, the IRS looks through the trust to the people behind it when working out the payout rules. Treas. Reg. § 1.401(a)(9)-4(f)(2) requires:

• "The trust is a valid trust under State law or would be but for the fact that there is no corpus."
• "The trust is irrevocable or will, by its terms, become irrevocable upon the death of the employee."
• The trust beneficiaries with respect to the plan interest "are identifiable… from the trust instrument."
• "The documentation requirements in paragraph (h) of this section have been satisfied."

The first three are usually settled the day the trust was drafted — there's nothing to fix now. The fourth is the one still in play, and it has a date attached.

What is the October 31 deadline for a trust that inherited an IRA?

Documentation is due to the plan administrator by October 31 of the year after the death. In the words of Treas. Reg. § 1.401(a)(9)-4(h)(1)(ii), the documentation requirement must be satisfied "no later than October 31 of the calendar year following the calendar year that includes the employee's date of death." For a death in 2026, that's October 31, 2027.

This is the item most families don't know exists, because nobody at the bank brings it up. If you're the trustee and that date hasn't passed, put it on the calendar now and ask the IRA custodian exactly what they want — usually a copy of the trust or a certification of its beneficiaries. If the date has passed, that's a conversation for a professional who can look at what the custodian already has on file, not a reason to panic.

Can we move the IRA out of the trust and into our own names?

Not into your own IRA, no — and this is the most common hope I hear. A non-spouse beneficiary can never roll an inherited IRA into their personal IRA, and a trust standing between you and the account doesn't create that option. One poster on the TurboTax community boards, holding an irrevocable trust with his brother, asked it this way:

"Is it necessary to complete a 1041 and two K-1s for the trust every year for the next 10 years?"

In the same post they asked whether the IRA assets could be moved from the irrevocable trust into their own traditional IRAs. The honest answer to the first question is usually yes: as long as the trust is the beneficiary and it receives IRA distributions, there's a Form 1041 and a K-1 for each beneficiary in every year money moves. The answer to the second is no, at least not the way they hoped.

There is a narrower question worth asking, and one family asked the IRS directly. A woman died after she had started her required withdrawals, leaving retirement accounts to her trust; the trust was split between a foundation and several individual beneficiaries. Her trustees wanted to divide the accounts into separate inherited IRAs, one for each individual, and asked the IRS to rule on it first. In PLR 202506004, issued November 2024, the IRS told them two things. The transfers themselves were fine: moving the accounts by trustee-to-trustee transfer into inherited IRAs "titled in the name of the Decedent for the benefit of each individual beneficiary (instead of titled for the benefit of the Trust), will not result in taxable distributions." But the trust had already cost them something. "Because Trust was listed as the designated beneficiary of each of the Retirement Accounts, the Retirement Accounts are treated as having no designated beneficiary" — so instead of a beneficiary's own payout schedule, the individuals were left taking withdrawals over the deceased owner's remaining life expectancy.

Read that carefully before you borrow it. A private letter ruling answers one taxpayer's facts and says so on its face: "This ruling is directed only to the taxpayer requesting it. Section 6110(k)(3) of the Code provides that it may not be used or cited as precedent." What that family got was an answer in writing, before they moved anything. That is the move here too — the trust's own terms and the custodian's rules drive what is possible, and neither a forum thread nor a blog post, including this one, can tell you which. Our guide on who to talk to after inheriting an IRA lays out which professional owns which piece of that question.

Can a trust beneficiary still qualify for the 10-year rule exceptions?

Yes. The people behind the trust still matter for the payout clock. The see-through rules exist precisely so the IRS can look past the trust to the individuals, and some of those individuals get more favorable treatment than the standard 10-year rule. If a beneficiary of the trust is a surviving spouse, a minor child of the owner, disabled, chronically ill, or not more than 10 years younger than the owner, read our breakdown of the eligible designated beneficiary exceptions before assuming ten years is the answer.

And if an annual required withdrawal was missed somewhere in the middle of all this, the fix is well-trodden: see what to do about a missed inherited IRA RMD.

What should you do this year if a trust inherited the IRA?

Read the trust's distribution language first — not the tax return, and not the account statement. It determines everything else: if distributions must pass through, the tax lands on the beneficiaries' returns and the rate problem largely disappears. If the trustee can accumulate, decide deliberately each year whether keeping money inside the trust is worth paying trust rates on it. Then confirm the custodian has the documentation it needs, and check the October 31 date if the death was recent.

One more lever, and it is the reason a trustee who reads this in January is not too late. Under IRC § 663(b), "if within the first 65 days of any taxable year of an estate or a trust, an amount is properly paid or credited, such amount shall be considered paid or credited on the last day of the preceding taxable year." A distribution made by early March can be treated as last year's, moving that income onto the beneficiaries' returns for the year already closed. It is an election the fiduciary has to make, not an automatic treatment, so it belongs on the preparer's list before the 1041 is filed.

Holding an inherited IRA inside a trust and staring at a tax bill that looks wrong? N&T Tax & Advisory Group reads the trust's distribution language, works out whether the money should come out to the beneficiaries this year or stay in, and prepares the 1041 and K-1s that follow — by phone or video, wherever the trust was written. Book a meeting with our team here.