When a trust inherits an IRA, it’s not just the trust structure that determines how distributions work — it’s also who ultimately benefits from the money. The SECURE Act made this especially important by creating new beneficiary categories, each with its own payout rules.

Here’s how they affect timing, taxes, and long-term growth potential.

 1. Eligible Designated Beneficiaries (EDBs)

These are the “VIPs” of inherited IRA rules — they qualify for stretch distribution options, allowing IRA payouts over their life expectancy instead of the faster 10-year rule.

Who counts as an EDB?

• A surviving spouse
• A minor child of the deceased IRA owner
• Someone who is disabled or chronically ill
• An individual less than 10 years younger than the IRA owner
• Certain special trusts set up for disabled or chronically ill individuals

Example:
Emma leaves her IRA to a see-through conduit trust for her spouse, David. Because he’s an eligible beneficiary, the trust can take distributions based on his life expectancy — letting the IRA grow longer and spread taxes out over time.

Note: When that EDB passes away (or, for minors, turns 21), the next beneficiary usually switches to the 10-year payout rule.

 2. Non-Eligible Designated Beneficiaries (NEDBs)

This group includes most adult children, siblings, and other relatives who don’t meet the SECURE Act’s “eligible” criteria. The stretch option is gone for them — instead, IRA funds must be fully distributed by December 31 of the 10th year after the original owner’s death.

Example:
Jason names a discretionary trust for his two grown sons, both in their 30s. Because they’re not eligible designated beneficiaries, the trustee can pace withdrawals — maybe taking more in low-tax years and less in high-income years — but all IRA assets must be distributed within that 10-year window.

This setup offers some flexibility while keeping tax deferral for up to a decade.

 3. Non-Designated Beneficiaries (NDBs)

Non-designated beneficiaries are not individuals (think estates, charities, or non–see-through trusts). These entities don’t have a life expectancy, so the IRS applies fixed payout schedules instead.

Two main rules apply:

• If the IRA owner died before reaching their Required Beginning Date (RBD), it follows the five-year rule — the account must be emptied within five years.
• If the owner died after their RBD, distributions follow what’s left of the owner’s own life expectancy.

Example:
If Elaine leaves her IRA to a trust that includes a charity as a beneficiary, and the trust fails to qualify as a see-through trust, it’s treated as a non-designated beneficiary. The five-year deadline kicks in — potentially creating a big, early tax hit.

Bringing It All Together

The class of beneficiary — EDB, NEDB, or NDB — drives the timeline for how quickly IRA funds must leave tax-deferred status. Combine that with your trust type (conduit vs. discretionary), and you have your distribution roadmap.

Think of it like layers of rules:

1. See-through qualification opens the door to individual-based timing.
2. Trust type determines who’s “counted” as a beneficiary.
3. The beneficiary class decides how long you have to stretch the IRA.

By understanding those layers, you can structure a trust that meets both your family’s needs and the IRS’s requirements — all while maximizing tax efficiency.

Coming in Part 4:
We’ll tackle RMD rules, including how Roth vs. Traditional IRAs and the timing of the original owner’s Required Beginning Date, shape the distribution schedule for a trust.