What Is an Interested Trustee? Definition, HEMS, and Grantor Rules

An interested trustee is a trustee whose family relationship, employment, or financial ties to the grantor make federal tax law presume they will follow the grantor’s wishes rather than act independently. The Internal Revenue Code calls this person a “related or subordinate party,” and the label carries real consequences: unless the trust document limits what an interested trustee can do, the trust’s assets can be taxed as part of the trustee’s estate, and the trust’s income can be taxed to the grantor personally.¹

The Legal Definition

Internal Revenue Code Section 672(c) defines a related or subordinate party as a nonadverse party — someone whose own financial interests would not be harmed by exercising the power in question — who also has a listed relationship with the grantor.¹ The Treasury regulations then add a presumption that has teeth: the IRS assumes the related or subordinate party is subservient to the grantor unless someone can show otherwise by a preponderance of the evidence.²

That presumption is the whole reason the category matters. Once a trustee is assumed to be doing the grantor’s bidding, the tax rules treat their powers as if the grantor still holds them. An independent trustee — someone with no family, employment, or financial connection to the grantor or beneficiaries — is not presumed to be subservient and can safely hold much broader powers.

Who Counts as an Interested Trustee

Section 672(c) lists the specific relationships that trigger the label.¹ Family members on the list are:

The grantor’s spouse, if living with the grantor.
The grantor’s parents.
The grantor’s issue — children, grandchildren, and further descendants.
The grantor’s brother or sister.

Professional connections on the list are:

Anyone employed by the grantor personally.
An employee of a corporation in which the grantor and the trust together hold enough stock for significant voting control.
A subordinate employee of a corporation where the grantor is an executive.

The statute names family members specifically and does not mention half-siblings, step-parents, or step-children, so whether those relatives fall inside the definition depends on the facts and how the IRS reads the terms.² The statute also does not fix a percentage for “significant” voting control; it turns on whether the combined holdings are enough to meaningfully influence corporate decisions.¹

Why the Label Matters

Naming a trustee “interested” is not itself a tax event. What matters is that once the label attaches, the trustee’s powers get scrutinized under three separate parts of the tax code:

Section 2041, which pulls trust assets into a trustee’s estate if they hold a general power of appointment.³
Section 2514, which treats the release or lapse of such a power as a taxable gift.⁴
Section 674, which taxes trust income to the grantor when a nonadverse party controls distributions.⁵

Each of these has an exception the drafter can rely on, but only if the trust document is written to fit. The rest of this article covers those exceptions.

The HEMS Standard on Distribution Powers

The main tool for keeping an interested trustee’s powers within safe boundaries is the HEMS standard, which stands for Health, Education, Maintenance, and Support. A distribution power limited to those four categories qualifies as an “ascertainable standard” under Section 2041, which means it is not treated as a general power of appointment and does not drag trust assets into the trustee’s estate.³

Treasury regulations spell out how the standard works. A power qualifies when the trustee’s duty to distribute or withhold is reasonably measurable against the beneficiary’s actual needs for health, education, or support. “Support” and “maintenance” mean the same thing and are not limited to bare necessities; they cover the beneficiary’s accustomed standard of living.⁶

In practice, HEMS covers a wide range of expenses:

Health: medical bills, insurance premiums, surgeries, mental health treatment, long-term care.
Education: tuition at any level, vocational programs, graduate school, and related costs like room and board.
Maintenance and support: housing, property taxes, food, clothing, transportation, and other costs of maintaining the beneficiary’s existing lifestyle.

What HEMS does not cover is discretionary spending disconnected from those categories: luxury travel, speculative investments, or gifts to third parties. If the trust needs to allow those kinds of distributions, an independent trustee should hold that power.

The Support Obligation Trap

A separate risk shows up when the interested trustee is also a parent of a minor beneficiary. A trust distribution that satisfies someone’s existing legal obligation — a parent’s duty to support a minor child, for instance — is treated by the regulations as if the money went to the person who owed the obligation.⁶ Because a power to discharge your own legal obligation is a power exercisable for your own benefit, the IRS classifies it as a general power of appointment.

The income tax side is parallel. Trust distributions used to satisfy a legal support obligation are included in the gross income of the person who owed the obligation, capped at whatever local law requires that person to provide.⁷

Consider a father serving as interested trustee of a trust for his minor daughter. If he uses trust funds to pay her basic living costs, expenses he is already legally required to cover, the IRS may treat those distributions as his personal income and treat his HEMS power as a general power for estate tax purposes. Trust documents can head this off by saying that distributions for a minor beneficiary must supplement, not replace, whatever a parent is legally obligated to provide.

The Five-and-Five Power

Some trusts give a beneficiary who also serves as trustee an annual right to withdraw a set amount. That withdrawal right is a power of appointment, but the code carves out a safe harbor. Under Section 2041, the lapse of a withdrawal power in any calendar year is only treated as a taxable release to the extent the amount that could have been withdrawn exceeds the greater of $5,000 or 5% of the trust’s value at the time of the lapse.³ The gift tax rules in Section 2514 use the same safe harbor.⁴

The math is simple. On a $200,000 trust, a beneficiary can hold a withdrawal right of up to $10,000 (5% of the trust) that lapses each year without estate or gift tax consequences. On a $50,000 trust, the safe harbor is $5,000, because the flat dollar figure is larger than 5%. The $5,000 amount is fixed in the statute and is not indexed for inflation.

Exceeding the threshold does not automatically produce a tax bill; it means the excess portion of the lapsed power is treated as a release of a general power, which can create both estate and gift tax exposure. Resignation or removal of an interested trustee can also cause a lapse of the powers held in that role, so trusts that combine trustee status with withdrawal rights need careful drafting.⁸

One important protection exists in the same regulations. A power is not a general power of appointment if it can only be exercised jointly with someone who has a substantial adverse interest. If two co-trustees hold the power to distribute principal to one of them, and the other is the remainder beneficiary, the remainder beneficiary’s adverse interest keeps the power out of the general-power category.⁸

Income Tax and the Grantor Trust Rules

An interested trustee also affects who pays income tax on the trust’s earnings. Section 674 treats the grantor as the owner of any trust portion where a nonadverse party — a category that includes an interested trustee — controls distributions of income or principal, unless an exception applies.⁵ When the grantor is treated as the owner, the trust becomes a grantor trust, and the grantor reports all its income on their personal return whether or not any money was actually distributed.

Two exceptions do most of the practical work. Section 674(c) says the rule does not apply when the distribution power is held solely by trustees, none of whom is the grantor, and no more than half of whom are related or subordinate parties subservient to the grantor.⁵ A separate exception applies when the trustee’s power is limited by a reasonably definite external standard in the trust document, which is another reason HEMS language appears so often.

If you want the trust to pay its own income tax rather than push it back to the grantor, either limit the interested trustee’s powers to an ascertainable standard or make sure at least half the trustees are independent.

Co-Trustee Structures

The common design that solves the interested-trustee problem uses both types of trustee together. An interested trustee, usually a family member, handles routine administration and stays close to the beneficiaries. An independent trustee holds the broader discretionary powers that would create tax problems if an interested trustee held them alone.

Under Section 674(c), this works as long as the grantor is not a trustee and no more than half the trustees are related or subordinate parties subservient to the grantor.⁵ With two trustees, at least one must be independent. With three, at least two must be independent, because one out of three fits the “no more than half” limit but two out of three does not.

The trust document should divide the powers clearly. The interested trustee typically handles HEMS distributions and day-to-day administration. The independent trustee holds authority over discretionary distributions outside the HEMS categories, decisions to add or remove beneficiaries, and any power that would fail the ascertainable-standard test if an interested trustee exercised it. That split keeps the interested trustee’s powers inside the safe boundaries the tax code recognizes while preserving the flexibility that makes a trust worth creating.

1
Office of the Law Revision Counsel. 26 U.S. Code 672 – Definitions and Rules
2
eCFR. 26 CFR 1.672(c)-1 – Related or Subordinate Party
3
Office of the Law Revision Counsel. 26 USC 2041 – Powers of Appointment
4
Office of the Law Revision Counsel. 26 USC 2514 – Powers of Appointment
5
Office of the Law Revision Counsel. 26 U.S. Code 674 – Power to Control Beneficial Enjoyment
6
eCFR. 26 CFR 20.2041-1 – Powers of Appointment; In General
7
eCFR. 26 CFR 1.662(a)-4 – Amounts Used in Discharge of a Legal Obligation
8
eCFR. 26 CFR 25.2514-3 – Powers of Appointment Created After October 21, 1942