First-Party vs. Third-Party Special Needs Trusts: SSI, Medicaid, and the Payback Rule

A $250,000 personal injury settlement should change a disabled person's life for the better — but without the right trust structure, it can wipe out their Supplemental Security Income (SSI), Medicaid coverage, Section 8 housing voucher, and SNAP benefits the day the check clears. The same is true for a $50,000 inheritance from a well-meaning grandparent who didn't realize that leaving money "to my grandson" instead of "to a trust for my grandson" would disqualify him from the very benefits he relies on for daily care.

Special needs trusts (SNTs) exist to solve this exact problem. They let a person with a disability hold significant assets without losing means-tested benefits. But there are two very different kinds — first-party (also called "self-settled" or "(d)(4)(A)") trusts and third-party trusts — and confusing them is one of the most expensive mistakes in disability planning. Choose the wrong vehicle and a family can pay back the state hundreds of thousands of dollars in Medicaid reimbursement that a properly drafted trust would have preserved for siblings or future caregivers.

This guide walks through both structures, explains who funds them, how the Medicaid payback rule works, what trustees can and cannot pay for, and how the rules shifted in 2024 and 2026 for families who already have one of these trusts in place.

Why a Disabled Person Can't Simply Hold the Money

SSI and Medicaid are means-tested programs. SSI caps countable resources at $2,000 for an individual (a number that has not budged since 1989), and a single dollar over that limit at the wrong moment can end the monthly check. Medicaid eligibility in most states piggybacks on SSI, so losing one frequently means losing both.

The harshness of this rule is that "resources" includes essentially anything the beneficiary owns outright: cash, a savings account, a brokerage account, even a settlement check sitting in their name for more than a calendar month. A windfall — settlement, inheritance, lottery, even a generous birthday gift — triggers an over-resource event.

Federal law carves out a narrow but powerful exception: assets held in a properly drafted special needs trust are not counted toward the resource limit, provided the trust meets specific statutory requirements. Those requirements are codified in 42 U.S.C. § 1396p(d)(4) — which is where the nickname "(d)(4)(A) trust" comes from.

First-Party (d)(4)(A) Trusts: The Beneficiary's Own Money

A first-party SNT is funded with assets that legally belong to the person with a disability. The most common scenarios:

Personal injury or medical malpractice settlement. The beneficiary is awarded damages and would otherwise be disqualified from Medicaid the moment funds arrive.
Inheritance the beneficiary already received outright. A relative left money directly to the disabled person, not realizing the consequences, and now the funds must be moved into a protective structure within the month.
Retroactive Social Security back-payment. A successful disability determination can produce a lump sum that pushes the recipient over the resource limit.
Divorce settlements, accumulated savings before disability, or gifts already received.

For the trust to qualify as a (d)(4)(A) exemption, federal law imposes four key conditions:

The beneficiary must be under age 65 at the time the trust is created and funded. Transfers after age 65 won't qualify, although a properly funded trust can continue to receive ongoing income streams (such as structured settlement annuity payments) past that age.
The beneficiary must be "disabled" within the meaning of the Social Security Act. Most beneficiaries already on SSI, SSDI, or Medicaid meet this test.
The trust must be established by a parent, grandparent, legal guardian, the beneficiary themselves (added by the 2016 Special Needs Trust Fairness Act, which finally let competent adults set up their own trust), or a court.
The trust must contain a Medicaid payback provision.

That fourth requirement is the catch — and it's why third-party planning, when available, is almost always preferable.

The Medicaid Payback Rule

When the beneficiary of a (d)(4)(A) trust dies, the trustee must use any remaining trust assets to reimburse every state Medicaid agency that ever paid benefits on their behalf, for the full lifetime cost of those benefits. The payback runs from the date the trust was created — or in some interpretations, from the beneficiary's eligibility date for Medicaid. It is not capped at the original funding amount, and it takes priority over almost every other claim, including unpaid funeral expenses, taxes owed, and any gift to a sibling or charity.

For a beneficiary who received decades of Medicaid-funded skilled nursing or behavioral health services, this can consume the entire remaining trust. Families sometimes assume the leftover money will flow to siblings or a chosen charity — and they are sometimes shocked to learn the state recovers first.

What a (d)(4)(A) Trust Can Pay For

Once funded, the trust must be administered for the sole benefit of the disabled beneficiary. Distributions cannot go to anyone else, even to support a sibling caregiver living in the same household. Within the sole-benefit constraint, trustees commonly approve:

Medical and dental care not covered by Medicaid
Therapies, specialized equipment, and assistive technology
Education, tuition, tutoring, and vocational training
Vacations and recreational activities, including a travel companion's expenses
Transportation, including the purchase of a wheelchair-accessible van
Personal care attendants beyond what Medicaid authorizes
Entertainment, hobbies, electronics, and a smartphone with a data plan
A primary residence (carefully structured, since direct purchase can affect SSI)

The trickier category is in-kind support and maintenance (ISM): payments by the trust for the beneficiary's food, housing, or utilities. Historically these reduced SSI by up to one-third of the federal benefit rate.

A major change took effect on September 30, 2024: food is no longer counted as ISM. Trustees can now buy groceries, pay for restaurant meals, or fund a meal-delivery service without reducing the SSI check. Shelter expenses — rent, mortgage, property taxes, homeowners insurance, gas, electricity, water, sewer, garbage — still trigger ISM. That's why most professional trustees still avoid paying rent or utilities directly and instead use the trust to buy goods, services, and experiences.

Third-Party Special Needs Trusts: Someone Else's Money

A third-party SNT is funded with assets that have never legally belonged to the disabled beneficiary. The classic funders are parents and grandparents, but anyone who wants to provide for the beneficiary — aunts, uncles, godparents, family friends — can contribute.

Because the money was never the beneficiary's, the trust escapes the Medicaid payback rule entirely. When the beneficiary dies, whatever remains in the trust flows to remainder beneficiaries chosen by the grantor — typically siblings, nieces and nephews, or a charity. The state does not get to recover. This is the single biggest reason families with even modest estates should set up a third-party SNT for a disabled child or grandchild before they pass.

Key Differences from First-Party Trusts

No age limit on the beneficiary. A third-party SNT can be created or funded for someone over 65.
No Medicaid payback. Remainder beneficiaries take whatever is left.
No "sole benefit" requirement under federal SSI/Medicaid rules (although the grantor typically still drafts for sole benefit, since distributions to others could be considered the beneficiary's income).
The grantor controls who serves as trustee, what assets fund the trust, and who takes the remainder.
The trust can be testamentary (created by will, funded at the grantor's death) or inter vivos (created during the grantor's life). Many families create the trust now as an empty "standby" trust and fund it through a will, life insurance policy, or retirement account beneficiary designation.

Funding a Third-Party SNT

The most common funding vehicles:

Outright lifetime gifts from grandparents, often coordinated with annual gift tax exclusion planning ($19,000 per donor per recipient in 2026).
Bequests under a will or revocable living trust. Leave the disabled beneficiary's share to the SNT instead of to them outright.
Life insurance, often through an Irrevocable Life Insurance Trust (ILIT) that names the SNT as beneficiary. This is the workhorse of middle-class special needs planning: a manageable monthly premium can produce a meaningful lump sum that funds care for the beneficiary's lifetime without depleting the parents' estate.
Retirement account beneficiary designations. After the SECURE Act, naming an SNT as the beneficiary of an IRA or 401(k) is more complex, but a "see-through" SNT for a disabled "eligible designated beneficiary" can still stretch distributions over the beneficiary's life expectancy rather than the ten-year rule that applies to most heirs.
Pooled trusts under (d)(4)(C), where assets are managed collectively by a nonprofit but accounted for in separate sub-accounts.

The Coordination Problem

Families often fund both kinds of trust without realizing it. A teenager hurt in a car accident receives a settlement that funds a (d)(4)(A); years later, the parents pass and their will leaves "her share" outright to her. That second transfer is a disaster. The cleanest planning is to fund the (d)(4)(A) for the settlement and to maintain a parallel third-party SNT — usually created in the parents' estate plan — that catches all future gifts and bequests so they avoid the Medicaid payback.

Picking a Trustee

A special needs trustee has to do three jobs at once: invest the assets prudently, understand the beneficiary's evolving care needs, and navigate the rules of SSI, Medicaid, SNAP, Section 8, and any other means-tested program the beneficiary participates in. The wrong distribution at the wrong time — a check made out directly to the beneficiary instead of to a vendor, or a transfer of cash to a sibling caregiver — can cost the beneficiary a month or more of benefits, plus penalty periods.

Options:

A family member. Cheaper and more attuned to the beneficiary's personality, but typically inexperienced with public-benefits rules. Works best when the family member is supported by a special needs attorney and a benefits counselor.
A professional individual trustee (an attorney, CPA, or financial advisor with disability expertise). Strong on rule compliance, weaker on personal knowledge.
A corporate trustee (bank or trust company). Best for trusts above roughly $500,000, where the fee load is manageable. Stable across generations but impersonal.
A pooled trust nonprofit. Specialized in SNT administration, often cost-effective for smaller balances, with built-in advocacy and case management.
Co-trustees, often pairing a family member with a corporate trustee or attorney, splitting investment decisions from distribution decisions.

The trustee should always pay vendors directly rather than reimbursing the beneficiary, keep detailed records of every distribution, file annual tax returns (the trust files Form 1041 unless it qualifies as a grantor trust), and reauthorize benefits annually with the SSA and the state Medicaid agency.

ABLE Accounts: The Companion Tool

ABLE accounts (Achieving a Better Life Experience), authorized under Section 529A, are not trusts but tax-advantaged savings accounts for people whose disability began before age 26 — a threshold that rises to age 46 starting January 1, 2026 under the ABLE Age Adjustment Act, dramatically expanding eligibility. Up to $19,000 per year (the 2026 annual gift tax exclusion) can flow in, with higher limits for working beneficiaries through the ABLE-to-Work provision.

ABLE balances up to $100,000 are excluded from the SSI resource test, and the whole balance is excluded from Medicaid eligibility. The funds can be spent on a broad list of "qualified disability expenses," including some categories that are awkward inside an SNT (like a beneficiary buying their own groceries).

In practice, families layer the tools: large amounts (settlement, inheritance, life insurance) sit in the SNT, while a smaller working balance flows into an ABLE account each year for the beneficiary's day-to-day spending. The combination dramatically increases what the disabled person controls directly without triggering the resource cliff.

Why Plain-Text Records Matter Here

Special needs trustees are subject to some of the most rigorous record-keeping demands in fiduciary practice. Every distribution can be questioned by a state Medicaid agency, an SSA field office, a remainder beneficiary, or a successor trustee. Vendor invoices, justification for the "sole benefit" test, ISM analysis, ABLE-account contributions, and the timing of disbursements all matter. A vague entry — "groceries, $480" — is not enough; the trustee needs to capture the vendor, the date, the supporting receipt, and the rationale.

This is exactly the kind of work where a plain-text accounting system shines. The full audit trail is in human-readable files, every transaction is version-controlled, and a future trustee — or the beneficiary's attorney during a Medicaid recertification — can re-create the trust's history without relying on a proprietary database the previous trustee may no longer have access to.

Common Mistakes That Cost Benefits

Letting the settlement check arrive in the beneficiary's name first. Even a few days of legal ownership can disqualify them. Structured settlements should be directed straight into the trust at closing.
Funding a third-party SNT with the disabled person's own money (such as Social Security back pay or wages they earned). That money belongs to the beneficiary and must go into a first-party trust, not a third-party trust.
Leaving a bequest "in trust for the benefit of" the disabled child without using a properly drafted SNT. A generic "support and maintenance" standard counts as available resource and disqualifies the beneficiary.
Naming the disabled person as the contingent beneficiary on a 401(k) or life insurance policy. When the primary beneficiary predeceases, the proceeds go to the disabled person outright. Name an SNT instead.
Paying the beneficiary directly. Cash distributions, reimbursements, and gift cards all count as income for SSI purposes. Pay vendors.
Forgetting to file Form SSA-1632 or the equivalent trust disclosures. SSA needs to see the trust document to approve continued SSI; failure to disclose creates overpayment liability.
Closing the trust before the beneficiary dies without checking Medicaid payback. A premature termination still triggers reimbursement obligations.
Mixing first-party and third-party assets in the same trust. The first-party rules then taint the whole pot.

A Quick Decision Framework

If the money belongs to the disabled person now or is about to: it must go into a first-party (d)(4)(A) trust (or an ABLE account, or a pooled (d)(4)(C) trust), and the Medicaid payback is unavoidable.

If the money belongs to someone else and they want it to support the disabled person: it should go into a third-party SNT, ideally established before the funder's death, with no payback and a clean path to remainder beneficiaries.

If a settlement is coming and there are also parents or grandparents thinking about their estate plan: run both. The (d)(4)(A) catches the settlement; the third-party SNT catches the inheritance and the life insurance.

Keep the Trust's Books in a Format the Next Trustee Can Read

A special needs trust may outlast the original trustee, the original attorney, the original accountant, and even the original accounting software. Decades from now, a successor trustee — or a state agency reviewing a Medicaid recertification — will need to reconstruct what every dollar paid for and why. Beancount.io provides plain-text, version-controlled accounting that gives fiduciaries complete transparency and a permanent, portable audit trail — no proprietary file formats, no vendor lock-in, and a record any future trustee or auditor can read. Get started for free and see why families and fiduciaries handling sensitive long-term obligations are switching to plain-text accounting.