When you're planning to leave assets to a child with disabilities, the structure of the trust matters as much as the amount you're setting aside. A third-party special needs trust is the vehicle designed for exactly this situation: family money, intended to support someone who relies on needs-based government benefits.

The term "third-party" refers to the source of the funds. You're the third party. The money comes from you, not from the beneficiary's own assets. That distinction carries legal weight because it determines whether the government can recover those funds later.

What a Third-Party Special Needs Trust Is

A third-party SNT is established by someone other than the beneficiary. Parents set them up using their own money. Grandparents fund them through estate plans. Siblings or extended family members name them as beneficiaries of life insurance policies or retirement accounts.

The trust exists to supplement, not replace, government benefits like Supplemental Security Income (SSI) and Medicaid. Those programs have strict asset limits, typically $2,000 for SSI. A properly drafted SNT holds assets without disqualifying the beneficiary from those programs.

The trustee manages the funds and uses them for expenses that government benefits don't cover: adaptive equipment, recreation, specialized therapies, quality-of-life improvements. The beneficiary doesn't control the money directly. That's what preserves eligibility.

How It Differs from a First-Party Trust

A first-party SNT is funded with the beneficiary's own assets: typically a personal injury settlement, an inheritance received directly, or back pay from Social Security disability benefits. Federal law requires those trusts to include a Medicaid payback provision. When the beneficiary dies, the state gets reimbursed for the cost of benefits provided during the person's lifetime. Only after that payback does any remaining money go to other beneficiaries.

Third-party trusts have no such requirement. The government can't recover from assets that were never the beneficiary's to begin with. This is the central structural difference, and it's why estate planning attorneys recommend third-party SNTs when family members are funding the trust.

If your estate plan names your child as a direct beneficiary of your will or life insurance policy, those assets become theirs and trigger the first-party rules. Naming the SNT as the beneficiary instead keeps the funds in the third-party category.

How to Establish a Third-Party SNT

You'll need a special needs attorney who understands both trust law and public benefits rules. The trust document must comply with federal and state requirements to avoid disqualifying the beneficiary from SSI or Medicaid. Standard revocable living trusts don't work. The language has to be precise.

The trust can be standalone or part of your will. A standalone trust takes effect while you're alive. You fund it during your lifetime, and it continues after your death. A testamentary trust is created through your will and only takes effect when you die.

Many families use life insurance to fund the trust. Permanent life insurance guarantees a death benefit no matter when you die, and the payout is typically tax-free. You take the policy out on your own life and name the special needs trust as the beneficiary. When you die, the death benefit flows directly to the trust without going through probate.

You can also fund the trust through your estate plan by naming it as a beneficiary in your will, or by designating it to receive retirement account distributions. Some parents contribute to the trust while they're alive if they want the trustee to start managing funds immediately.

Who Can Be Trustee

The trustee manages the trust and makes disbursement decisions. You can appoint a family member, a friend, a professional trustee, or a corporate fiduciary like a bank trust department.

Family members know the beneficiary well and may serve without charging fees. They also carry the full legal responsibility for administering the trust in compliance with government benefit rules. If the trustee makes disbursements that disqualify the beneficiary from SSI or Medicaid, the consequences fall on the beneficiary.

Professional trustees charge fees, typically a percentage of the trust assets annually, but they bring expertise in benefits preservation and trust administration. Many families appoint a family member as co-trustee alongside a professional to balance personal knowledge with technical competence.

Pooled trusts are another option. These are managed by nonprofit organizations that pool the assets of many beneficiaries for investment purposes while maintaining separate accounts for each person. The organization serves as trustee. Pooled trusts work well for smaller trusts where professional trustee fees would consume too much of the principal.

What the Funds Can Be Used For

The trustee can use trust funds for expenses that improve quality of life without replacing what government benefits already cover. SSI provides a monthly cash payment, and Medicaid covers medical care. The trust supplements those programs.

Allowable expenses include therapies not covered by Medicaid, adaptive equipment, home modifications, educational programs, recreation and entertainment, vacations, clothing, personal care attendants beyond what Medicaid funds, and transportation.

The trust shouldn't pay for food or shelter in most cases. Those are considered "in-kind support and maintenance" under SSI rules, and they reduce the beneficiary's monthly SSI payment dollar-for-dollar up to a cap. Some expenses can be structured to avoid this reduction. A special needs attorney or experienced trustee can advise on what works.

The trustee has discretion. The trust document typically grants broad authority to spend on anything that benefits the beneficiary, as long as it doesn't jeopardize eligibility for government programs, providing the flexibility needed as your child's needs change over their lifetime.

Why a Third-Party Trust Is the Preferred Vehicle

When you're using family money, a third-party SNT protects the full inheritance for your child without Medicaid payback or state claims. When the beneficiary dies, the remaining assets go to the remainder beneficiaries you named in the trust document: siblings, other family members, or a charity.

The structure also preserves your child's access to SSI and Medicaid without requiring them to spend down an inheritance to the $2,000 asset limit first. Those benefits often cover housing support, medical care, and monthly income. Losing them to receive a direct inheritance creates more problems than it solves for many families.

If you're planning your estate and you have a child who receives or will receive needs-based government benefits, work with an attorney who specializes in special needs planning. The trust must be drafted correctly to function as intended. A generic trust template won't work. The cost of getting it wrong is your child's loss of benefits, and in a first-party scenario, the potential loss of the inheritance to Medicaid payback.

Third-party SNTs are the standard tool for this situation because they do exactly what families need: hold assets outside the beneficiary's name, preserve eligibility for benefits, and protect family money from government recovery. That's the clarity you need when you're making decisions that will outlast your lifetime.