A special needs trust (SNT) is one of the most important planning tools for families with a loved one who has a disability. But like any legal tool, it has costs and limits that families should weigh honestly before committing to one. Here is a clear look at the main drawbacks.
High Setup Costs
A well-drafted special needs trust is not a simple form. It must follow strict rules under federal Social Security law and Arizona law to protect the beneficiary's SSI and Medicaid eligibility. An experienced attorney typically charges $3,000 to $8,000 or more for a stand-alone SNT, depending on how complex the family's situation is. Costs rise when the family also needs a full estate plan built around the SNT, life insurance coordination, and real property transfers.
Ongoing Trustee Fees
The trust needs a trustee to manage funds and make distributions. A family member can serve as trustee, but that can create strain. Professional trustees, such as a corporate fiduciary or nonprofit organization, typically charge 0.75 to 1.5 percent of the trust's assets each year. On a $300,000 trust, that is $2,250 to $4,500 annually in fees before any distributions to the beneficiary. Some bank trust departments require a minimum account size of $200,000 to $500,000 before they will serve as trustee.
Strict Record-Keeping Requirements
The trustee must document every payment made from the trust. Social Security can audit disbursements and request proof that payments were for legitimate supplemental needs, not food, shelter, cash, or Medicaid-covered services. One improper payment can trigger a benefit overpayment determination and a demand that the beneficiary repay the government. Most professional trustees maintain detailed logs, receipts, and written explanations for every expense. A family member serving as trustee must do the same.
Housing Payments Still Reduce SSI
If the trust pays rent, mortgage, utilities, or other shelter costs, Social Security counts those payments as in-kind support and maintenance (ISM) and reduces SSI by up to the presumed maximum value, which is about $315 per month in 2026. This does not eliminate SSI, but it does lower the monthly payment. Families that use the trust for housing need to plan around this reduction.
Medicaid Payback for First-Party Trusts
A first-party special needs trust is funded with the beneficiary's own money, such as a personal injury settlement or inherited funds. Federal law requires that when the beneficiary dies, any remaining trust assets must first reimburse Medicaid for all benefits paid during the beneficiary's lifetime before going to heirs. This payback requirement can wipe out a significant portion of the trust. Third-party trusts, funded entirely by family members, do not have this payback requirement. For more on the difference, see our FAQ on first-party vs. third-party special needs trusts.
The Beneficiary Has No Direct Control
The very feature that protects the beneficiary's SSI, giving control to the trustee rather than the beneficiary, can also feel limiting. The beneficiary cannot simply access funds for what they want. They must ask the trustee, who then decides whether the request fits the trust's purpose. For a young adult with a disability who wants more independence, this dynamic can feel frustrating. Families can reduce friction by choosing a trustee who understands the beneficiary's personality and communicates clearly.
Complexity and Risk of Trustee Error
The rules about what a trust can and cannot pay for are detailed and change over time. An untrained trustee can make payments that seem reasonable but actually reduce or eliminate SSI. For example, giving the beneficiary cash for a birthday, paying a utility bill in the beneficiary's name, or purchasing an item that then sits in the beneficiary's possession can all create problems. Training and legal guidance for the trustee are a must.
Are the Drawbacks Worth It?
For most Arizona families with a loved one who depends on SSI and AHCCCS (Medicaid), the answer is yes. The cost of losing SSI or Medicaid permanently would far exceed the cost of setting up and maintaining a trust. The planning required to keep benefits intact is significant, but it protects a lifetime of government support that the person with a disability has earned. The trust also provides peace of mind that a trusted person will manage funds responsibly after the parents or family members are gone.
Families with smaller estates or simpler situations may also want to explore whether a pooled special needs trust or an ABLE account might reduce some of these costs while still protecting benefits.
This question is one piece of a larger picture. For the full Arizona overview, see our Special Needs Trust Arizona: Complete Guide.
Quick reference: see our SNT distribution cheatsheet for a side-by-side of 20 common expenses showing whether to pay from the SNT, the ABLE account, or not at all, and the SSI impact of each choice.