You’ve now got a strong handle on how trusts interact with inherited IRAs — from see-through status to trust types, beneficiary classes, and RMD timing. But estate plans rarely fit neatly in one box. Real families often have special situations that call for thoughtful trust design.

Let’s look at how a few unique trust setups operate under the SECURE Act and what steps can help keep your plan both flexible and tax-smart.

When a Trust Splits into Sub-Trusts

Sometimes an IRA is left to a single family trust that automatically divides into smaller sub-trusts after the owner’s death — often one for each child or heir.

Here’s the key: distribution rules depend on each sub-trust’s beneficiaries, not the overall family trust.

Example:
Laura leaves her IRA to the “Benson Family Trust,” which divides into equal shares for her three children: Anna (age 35), Ben (age 40), and Cara, who is disabled. Anna’s and Ben’s sub-trusts are subject to the 10-year payout rule because they’re non-eligible designated beneficiaries. But Cara’s sub-trust, if structured properly for a disabled person, may stretch distributions over her lifetime. That’s because her share meets the criteria of an Applicable Multi-Beneficiary Trust (AMBT).

Applicable Multi-Beneficiary Trusts (AMBTs)

An AMBT was created under the SECURE Act to give families with disabled or chronically ill beneficiaries fairer treatment. Here’s how it works:

• The trust must benefit the disabled or chronically ill beneficiary first, and
• Other beneficiaries can’t access those assets until that individual passes away.

If those rules are met, the trust can be treated as a conduit trust, meaning IRA distributions can be stretched over the disabled person’s lifetime.

Example:
Mark leaves his IRA to a trust for his brother, Paul, who has a chronic illness. While Paul is alive, no one else can receive distributions. This trust counts as an AMBT, so instead of being forced to empty the IRA within 10 years, Paul’s trustee can take smaller required distributions across his lifetime, keeping growth potential and minimizing taxes.

Trusts for Minor Children

Children can also qualify as Eligible Designated Beneficiaries (EDBs), but the rules shift once they reach adulthood.

If a trust holds an IRA for a minor child of the original account owner, the account can stretch over the child’s life expectancy until age 21. After that, the 10-year rule kicks in, meaning any remaining IRA balance must be completely distributed by the time they turn 31.

For parents or guardians, a conduit trust often makes sense here, since it ensures assets are used to support the child while preserving tax advantages.

Example:
Karen leaves her IRA to a conduit trust for her 10-year-old son, Leo. The trust takes annual RMDs while Leo is a minor, then after he turns 21, the clock starts on the 10-year distribution window, giving him until age 31 before the account must be fully paid out.

Quick Checklist: Determining Trust Distribution Options

If you’re wondering how all these moving parts fit together, here’s a quick recap of the key steps:

1. Confirm see-through status. Make sure the trust meets all four eligibility criteria (valid, irrevocable, identifiable beneficiaries, and proper documentation).
2. Identify the trust type. Is it conduit (income flows through) or discretionary (trustee can hold funds)?
3. Define the beneficiaries. Know whether they’re EDBs, NEDBs, or NDBs — that classification drives payout timing.
4. Check the IRA owner’s age at death. It determines whether the five-year, 10-year, or life-expectancy rule applies.
5. Review special circumstances. Sub-trusts, AMBTs, and trusts for minors can change the tax timeline.
6. Document and communicate. Provide trust paperwork to the IRA custodian by the October 31^st deadline following the owner’s death.

The Takeaway

Trusts can offer powerful control, protection, and flexibility for IRA inheritance, but the details matter. Small differences in wording or timing can have big tax consequences.

If you’ve set up a trust or been named as a trustee or beneficiary, this is the right time to:

• Review your trust documents with an estate planning attorney.
• Confirm your IRA custodian has current paperwork.
• Discuss how these rules fit into your overall retirement and tax strategy with a financial professional.

If you’re unsure whether your trust still fits today’s SECURE Act rules, you’re not alone.

Schedule a conversation with Approach Retirement Advisors and we’ll walk you through your options, simplify the steps, and help you protect what you’ve worked so hard to build.