Planning for an Adult Child With Special Needs When the Estate Is Modest

You have an adult child with a disability who depends on Supplemental Security Income (SSI) and Medi-Cal, and you are trying to figure out how to leave them something without wrecking the benefits that pay for their care. The answer, for the overwhelming majority of families in this position, is a third-party special needs trust: a trust that holds the inheritance for your child’s benefit, is not counted as the child’s own asset under SSI and Medi-Cal resource rules, and is managed by a trustee you choose rather than by your child directly. This matters more, not less, when the estate is modest, because a family with $150,000 or $300,000 to leave has far less room for a mistake than a family with $5 million.

I practice trust and estate planning in Ventura, Santa Barbara, and Los Angeles Counties, and this is one of the conversations I have most often with parents in their sixties and seventies who are finally sitting down to plan. Almost every one of them has, at some point, considered the same shortcut: leave everything to the sibling closest to their disabled brother or sister, and trust that sibling to use the money to take care of them. That plan deserves its own section below, because it is the single most common and most damaging plan I see.

Why Leaving Money Outright Destroys SSI and Medi-Cal Eligibility

SSI is a means-tested federal benefit. An individual applicant generally cannot have more than $2,000 in countable resources ($3,000 for a couple), under the SSI resource limit set by 42 U.S.C. § 1382(a). This limit is fixed by statute and has not changed since 1989; it is not adjusted for inflation the way the SSI monthly benefit amount is. Medi-Cal eligibility for many disability-based categories tracks SSI’s resource test closely, and both programs count what your child actually owns, not what you intended. An inheritance received outright, whether through a will, joint tenancy, or a beneficiary designation, is counted the month it arrives, and benefits can be suspended until the excess is spent down below the limit.

This is not a hypothetical technicality. I have seen a disabled adult child lose their SSI check and Medi-Cal coverage within weeks of a parent’s death, because a will left an “equal share to each of my three children” with no exception carved out. The fix at that point is expensive and disruptive.

The Third-Party Special Needs Trust: The Default Answer

A third-party special needs trust is funded with someone else’s money, typically a parent’s or grandparent’s, not the beneficiary’s own funds. Properly drafted, the trust owns the assets, not your child, so the trust principal is not counted as your child’s resource for SSI and Medi-Cal purposes. The trustee uses trust funds for things that supplement, rather than duplicate, what public benefits already cover: therapies, equipment, transportation, respite care, education, and recreation. Money paid directly to your child, or used for their basic food or shelter in certain ways, can still affect their benefits, so administration matters.

The key structural feature, and the reason this is the default answer for most families, is that when your child dies, whatever is left in the trust does not have to be paid back to the state for Medi-Cal benefits received. It passes to other family members or a charity exactly as you direct, because the money funding the trust was never your child’s own money to begin with.

First-Party (d4A) Special Needs Trusts: A Different Tool

A first-party special needs trust, sometimes called a “(d)(4)(A)” trust after the federal statute that authorizes it, is funded with the beneficiary’s own assets. This comes up when your child receives a personal injury settlement, an inheritance left outright before anyone caught the problem, or any other money that legally belongs to them directly. It can still protect SSI and Medi-Cal eligibility going forward, but it carries a condition a third-party trust does not: at your child’s death, the trust must reimburse the state for Medi-Cal benefits paid, up to the value remaining, before anything passes to other beneficiaries.

For most parents doing advance planning, the goal is to avoid ever needing a first-party trust, by routing the inheritance through a third-party trust from the start. A first-party trust becomes necessary when money that is already legally your child’s has to be protected after the fact, exactly the situation created by leaving assets to your child outright.

ABLE Accounts: A Companion Tool, Not a Replacement

An ABLE account is a tax-advantaged savings account available to individuals whose disability began before age 46, as of January 1, 2026, when the ABLE Age Adjustment Act’s higher age threshold took effect, raised from the previous before-age-26 cutoff. Contributions grow tax-free and can be spent on qualified disability expenses without counting against the SSI resource limit, up to an annual contribution cap of $20,000 as of 2026, tied to the federal gift tax exclusion amount. A working account owner who is not participating in an employer retirement plan can contribute an additional amount above the base limit under the “ABLE to Work” provision; confirm the current additional allowance with your advisor before relying on a specific figure. A special needs trust can make periodic distributions into an ABLE account, giving your child limited, hands-on spending access while the bulk of the inheritance stays protected inside the trust.

An ABLE account is not a substitute for a special needs trust once the amount involved exceeds what the account’s balance cap allows to grow tax-free, or when you want a trustee, not your child, controlling how the bulk of the money is spent. Most families use both.

Why a Pooled Trust Can Make Sense for a Smaller Estate

A pooled special needs trust is run by a nonprofit that manages one trust with many separate sub-accounts, pooling investment and administrative overhead. For a modest estate, perhaps $75,000 to $250,000 earmarked for care, and no family member well suited to serve as trustee, a pooled trust avoids an individual professional trustee’s minimum fees while providing institutional, disability-experienced management. Pooled trusts accept both third-party and first-party funds, though the first-party share still carries the Medi-Cal payback rule. Ask any pooled trust for its fee schedule and its policy on remaining funds at your child’s death.

Naming a Trustee When Siblings Are the Realistic Candidates

For most families of modest means, a corporate trustee is not realistic, the fees are too high relative to the trust balance. That leaves a sibling as the most likely trustee, which can work well, but requires more structure than “I trust her to do the right thing.” Separate the trustee role from the caregiver role where possible, since a sibling who is also the hands-on caregiver has an inherent conflict deciding how much to spend on their own reimbursement for caregiving time. Give the trustee clear written guidance, not just discretion, and name a successor trustee, since a trust that depends on one specific sibling forever is fragile.

The Letter of Intent

A letter of intent is not a legal document and does not bind the trustee, but it may be the single most useful thing you leave behind: a written, detailed account of your child’s daily routine, medical history, medications, likes and dislikes, communication style, and the people in their life. Whoever steps into the trustee or caregiver role is starting without decades of knowledge that lives only in your head right now. Write it down, update it periodically, and keep it with your estate planning documents.

Why “Leave It to My Other Child” Is the Most Damaging Plan

I want to be blunt about this because I see it constantly. Parents often plan to leave their entire estate to a non-disabled sibling, on the understanding, sometimes spoken, often just assumed, that the sibling will use the money to take care of their brother or sister. This plan fails for reasons that have nothing to do with whether the sibling loves their brother or sister: the money becomes the sibling’s own asset the moment they inherit it, exposed to their creditors, divorce, and bankruptcy; there is no legal obligation requiring them to spend a dollar of it on their disabled sibling, regardless of what was discussed at the dinner table; and it puts the sibling in an impossible position even acting in perfect good faith, making ongoing, unstructured decisions with no trust document to guide them.

A properly funded special needs trust removes all three problems. It is a modest amount of additional planning compared to the risk it eliminates, and it is the piece I most want families to get right the first time.

Frequently Asked Questions

Can I just leave my disabled child a smaller share instead of nothing?

Any amount left outright above the SSI resource limit, $2,000 for an individual, can trigger a suspension of benefits. There is no safe outright amount large enough to matter but small enough to avoid the problem. A third-party special needs trust, not a reduced outright gift, is the fix.

Does a special needs trust work if my child is on SSDI instead of SSI?

Social Security Disability Insurance (SSDI) is not means-tested the way SSI is, so an outright inheritance generally does not affect SSDI on its own. But many people receive both SSDI and means-tested SSI or Medi-Cal, and an inheritance can still jeopardize the means-tested piece. Confirm exactly which benefits your child receives before assuming an outright gift is safe.

Can I set up the special needs trust now, or does it have to wait until I die?

You can create the trust now, as a stand-alone document or a sub-trust inside your revocable living trust, and fund it later at your death. Doing this now means it is ready the moment it is needed.

What happens to the trust if my child predeceases me?

The trust document should specify a contingent disposition for this situation, typically naming other family members or a charity to receive the funds if your child does not survive to need the trust. Do not leave this gap open.

Do grandparents need their own special needs trust, or can they leave money to the trust I already set up?

Grandparents can generally leave money directly into a special needs trust you have already established for your child. Coordinate this in advance so a grandparent’s own will or trust does not accidentally leave money to the child outright.

This page is attorney-authored general information about special needs planning for a modest California estate. It is not legal advice for your specific situation, and benefit eligibility rules depend on the exact programs your child receives, their age, and their history of prior gifts or resources. If you want to talk through how to structure a trust for your child without putting their SSI or Medi-Cal at risk, call Ridley Law at 805-244-5291 or schedule a consultation.