I work with dozens of families in special needs planning. The most common question I hear is "Who should be the trustee?" The second most common is "We did not think about that carefully enough the first time, and now we need to fix it."
This matters more than most families realize. The trustee of a special needs trust is not a ceremonial position. The trustee manages your child's investments, makes distribution decisions that directly affect their quality of life, files tax returns, navigates SSI and Medicaid rules, and coordinates with government benefit agencies, care providers, and family members. A trustee who lacks financial competence, understanding of benefit rules, or good judgment can undo years of planning in a single decision.
Conversely, the right trustee can make the trust work exactly as intended for decades.
The Four Trustee Models
Family Member Trustee (Typically a Sibling)
Most families start here. Your other child has known the beneficiary their entire life. They understand preferences, care routines, personality. They will probably do the job at little or no cost.
The advantages are real. But the trade-offs are substantial.
Advantages: Personal knowledge of the beneficiary. No trustee fees. Motivated by love and family loyalty. Accessibility and responsiveness.
Disadvantages: May lack financial expertise or investment experience. May not understand SSI, Medicaid, and ISM rules. Personal life demands (career, their own children, financial pressures). Life expectancy risk: the sibling may not outlive the beneficiary. And the conflict of interest.
The conflict of interest deserves direct attention. If the sibling is also a remainder beneficiary (they inherit what is left in the trust after the disabled sibling dies), they have a financial incentive to minimize distributions during the beneficiary's lifetime. Even well-meaning people can rationalize. I have watched this play out.
Best for: Small trusts ($100,000-$300,000) with clear distribution guidelines, or families where the designated trustee is significantly older and will outlive the beneficiary. Requires a detailed trust document, successor trustees, and ideally a trust protector.
Professional Trustee (Bank Trust Department or Trust Company)
A professional trustee brings institutional expertise, objectivity, and continuity. They understand investment policy, tax law, benefit coordination, and trust administration. They will still be there in 20 years.
Cost: Most bank trust departments charge 1-2% of trust assets annually, with minimum fees of $2,500-$5,000/year. For a $500,000 trust at 1.5%, that is $7,500/year. Over 30 years (before growth): $225,000 in fees. For a $2 million trust at 1%: $20,000/year, or $600,000+ over 30 years.
Those numbers should give you pause. They are justified if the professional trustee prevents costly mistakes, coordinates benefits effectively, and manages complex portfolios. But they are not cheap.
Advantages: Institutional expertise. Objectivity. Continuity (the institution outlives any individual). Compliance infrastructure. Reduced burden on family.
Disadvantages: Cost. Impersonality (the trustee may not know your child). Staff turnover within the trust department. Not all professional trustees specialize in SNT benefit coordination. Bureaucracy can slow decisions.
Best for: Large trusts ($1M+) where fee burden is tolerable and complexity demands expertise, or families without a capable family member willing to serve.
Co-Trustee Arrangement (Family + Professional)
This is often the best solution for trusts over $500,000.
The family member handles personal and care-related decisions, maintains the relationship with the beneficiary and care team, and advocates for their needs. The professional trustee handles investments, tax returns, benefit compliance, and complex distribution decisions.
This combines the advantages of both models. The family member provides personalization and love. The professional provides expertise and objectivity.
Cost: Typically lower than a sole professional trustee (0.75-1% or flat fee), because the family member handles part of the work.
Requires: Clear delineation of responsibilities in the trust document. Ongoing communication between co-trustees. Both parties must respect the arrangement.
Best for: Most families with substantial trusts and a capable family member willing to serve alongside professional oversight.
Pooled Trust (Nonprofit Trustee)
A nonprofit organization creates a master trust with separate accounts for each beneficiary. The nonprofit serves as trustee. This exists primarily for families whose trusts are too small to justify individual professional trustee fees.
Cost: Often 1% or flat fee, sometimes lower than commercial trustees.
Best for: Small trusts ($50,000-$300,000) where professional management is necessary but commercial fees would consume too much of the trust corpus.
What a Trustee Actually Has to Do
Before you choose, understand the job.
Investment management. Invest trust assets prudently according to the trust document and applicable law (usually the Uniform Prudent Investor Act). Understand asset allocation, diversification, fees, and tax efficiency.
Distribution decisions. Decide when and how much to distribute for the beneficiary's supplemental needs: therapy, transportation, enrichment, housing, companions, equipment. Never distribute in ways that cause the beneficiary to lose SSI or Medicaid. Direct payments to service providers are generally safe. Cash distributions to the beneficiary count as unearned income.
Benefit rule expertise. Understand SSI resource limits ($2,000), in-kind support and maintenance (ISM) rules, Medicaid eligibility, and how distributions affect benefits. A single careless distribution can disqualify SSI. Coordination with ABLE accounts is essential.
Administrative burden. Track all transactions and maintain records. File annual trust tax returns (Form 1041). Coordinate with benefit agencies, care providers, and family. Pay trust expenses.
Fiduciary duty. The trustee acts as a fiduciary: they must act in the beneficiary's sole interest, in good faith, with prudence and diligence. They can be personally liable for breaches.
For a family member, this is a lot of work. For a professional, it is their job. But it is still work.
The Sibling Conflict of Interest
Let me be direct because this matters.
If your will states that your other child inherits what is left in the trust after your disabled child dies, that child is a remainder beneficiary. Legally, they have a financial incentive to minimize distributions. Even if they are conscious of this conflict, even if they try hard to be fair, the incentive is real. Over years or decades, it shapes decisions.
I sometimes ask families: "If the trust has $1,000 and your sibling needs $50 for something meaningful, but you know that $50 could eventually pass to you as remainder beneficiary, could you say yes without internal conflict?"
Many families cannot honestly answer yes.
Best practice: If a sibling serves as trustee and is also a remainder beneficiary, include an independent party (trust protector or co-trustee) to oversee distribution decisions. This does not eliminate the conflict, but it introduces accountability.
Succession Planning: Go Three Layers Deep
Whatever trustee model you choose, plan for succession. Your primary trustee may die, become incapacitated, move away, or resign.
Name at least three successor trustees in order. If you cannot name three, you have a governance problem that needs solving.
Example succession:
- Primary: sibling
- Successor 1: cousin with financial experience
- Successor 2: professional trust company
- Successor 3: a second professional trustee
Each successor should be informed of their potential role, educated about benefit rules, and given access to the trust document.
Common mistake: naming successors who are the same age as (or older than) the beneficiary. If your disabled child is 30 and the sibling-trustee is 35, that sibling may not outlive them. The trust may need a trustee for 50+ years. Plan accordingly.
The Trust Protector
A trust protector is a distinct role with specific powers: remove and replace the trustee, modify trust terms within limits to adapt to changing law, resolve disputes, and authorize distributions.
This role is increasingly recommended in special needs planning. It serves as a check on trustee power, ensures continuity of intent, and allows the plan to adapt over time. While you are alive, you often serve as trust protector. Name a successor protector for after your death.
How to Choose: A Framework
Assess available family members. Is there a sibling or relative who is significantly older than your child, financially responsible, willing to serve, capable of learning benefit rules, and free from conflicts of interest? If yes to all, a family member trustee (with succession and a trust protector) may work. If no to some, a co-trustee or professional is safer.
Assess trust size. Under $300,000: family member is often practical. $300,000-$1M: co-trustee arrangement is ideal. Over $1M: professional trustee or strong co-trustee is justified.
Assess complexity. Multiple government benefits, special healthcare needs, significant assets, anticipated inheritance or life insurance: higher complexity argues for professional involvement.
Plan succession. Three layers deep minimum. Educate successors. Make sure later successors are younger than the beneficiary.
Consider a trust protector. Someone outside the trustee/beneficiary relationship who can monitor and adjust.
Have the conversation. Do not assume the designated trustee has said yes. Discuss: what the job entails, your values and preferences, benefit rules, the conflict of interest, compensation, and when to seek professional advice.
Next Steps
- Review your existing trust document. Who is the trustee? Do they understand the job? Are successors adequate?
- Have the conversation with your designated trustee.
- If succession plans are inadequate, work with your estate planning attorney to add layers.
- If your trustee lacks benefit knowledge, arrange education.
- Consider a trust protector if the primary trustee is a family member.
For a deeper dive into trust types and structures, see Special Needs Trusts Explained. For more on the broader planning framework, see 8 Financial Planning Concerns for Families with Special Needs and Legal Considerations of Special Needs Planning.
The trustee decision is one of the most consequential you will make. If you want to discuss your specific situation, start a conversation with us.
