Retirement Trusts for Beneficiaries with Special Needs

For many families, retirement accounts — such as IRAs and 401(k)s — represent a significant portion of their overall wealth. Families may not know that these assets can help provide financial security for a loved one with special needs for a long time. This is true if they are planned carefully and coordinated with an overall estate plan.

The role of special needs trusts

A special needs trust (SNT) is designed to support a beneficiary with a qualifying disability by covering expenses not provided by public programs. These may include medical care, therapy, education, transportation, or better quality of life — all while keeping access to important government benefits like Medicaid and Supplemental Security Income (SSI). Since these government programs are designed to provide support for individuals with limited income, an increase in income can threaten eligibility.

Effective special-needs planning balances several priorities:

• Preserving access to government benefits
• Providing long-term financial support
• Managing taxes and distributions carefully
• Aligning with broader family and legacy goals

Because retirement accounts are often transferred through beneficiary designations rather than a will, how those accounts are coordinated with a special needs trust is especially important.

Using retirement assets in special needs planning

Recent years have brought changes to retirement rules that affect how inherited accounts are distributed. For families with a loved one who has special needs, these rules can shape how retirement assets are used to fund a special needs trust over time.

When properly structured, retirement assets may be distributed gradually rather than all at once. This approach can support:

• More stable cash flow for the trust
• Greater potential for improved long-term‑ tax efficiency
• Financial support that aligns with the beneficiary’s lifetime needs

While the technical rules matter, what’s most important for families is understanding that retirement assets can be integrated into long-term‑ financial planning for a loved one with special needs, with the right guidance.

Naming a special needs trust as the beneficiary

The most common way to fund a special needs trust with retirement assets is through beneficiary designations. Instead of naming an individual beneficiary on an IRA or 401(k), the account owner names the special needs trust as the beneficiary.

This approach allows:

• Retirement assets to pass directly into the trust at death
• Continued oversight of how and when funds are used
• Protection of needs-based government benefits

Because beneficiary designations override a will, it’s important that these designations align with the trust structure and broader estate plan.

How distributions work after death

Once the retirement account owner passes away, the assets move into an inherited retirement account held for the trust. Those assets aren’t generally paid out all at once, instead, distributions may occur over time.

When the beneficiary of the trust qualifies as an individual with a disability or chronic illness, current retirement rules may allow distributions to be spread over that individual’s life expectancy rather than being forced out quickly. This can help:

• Extend the life of the assets
• Reduce the impact of large, one-time taxable distributions
• Create more predictable support for the beneficiary
• Facilitate greater long-term tax efficiency

The trust, not the beneficiary, receives the distributions — and the trustee controls how funds are used.

Managing taxes and trust distributions

One important consideration is that distributions from traditional IRAs and 401(k)s are typically taxable as ordinary income. When those distributions are paid to a special needs trust, the trust pays the tax unless the funds are distributed out to another party.

This creates an important planning dynamic:

• Larger distributions can increase taxes
• Smaller, scheduled distributions may help manage individual tax exposure
• Timing matters just as much as total dollars

Because trusts often reach higher tax brackets faster than individuals, thoughtful distribution planning is essential. The timing and size of these distributions matter not only for taxes, but also for maintaining access to Medicaid and SSI. This is why financial planning for families with special needs often requires close coordination among estate documents, tax planning, and trust administration.

Trust design and coordinating assets

Not all special needs trusts are the same. How a trust is written can directly affect how retirement assets are handled. For retirement accounts, it’s important that the trust:

• Is properly drafted for a beneficiary with special needs
• Was designed with retirement assets in mind
• Clearly defines who may receive assets during the beneficiary’s lifetime
• Addresses what happens to the remaining assets after the beneficiary’s death

A well-designed trust gives families more options and helps make sure retirement assets are used toward reaching the family’s long-term goals. It can also assist with making confident decisions while avoiding bad ones.

Retirement accounts don’t need to do all the work on their own. Many families use a combination of assets to fund a special needs trust, such as:

• Retirement accounts for long-term support
• Life insurance for liquidity and taxes
• Taxable investment accounts for flexibility

The right mix depends on family circumstances, tax considerations, and the level of support the trust is intended to provide over time.

ABLE accounts as a complementary strategy

For some families, an ABLE account may complement a special needs trust. ABLE accounts can offer additional flexibility for certain expenses and may be useful as part of broader special needs trust planning. ABLE accounts and special needs trusts serve different purposes but, when used together, they can help families create a more adaptable long-term financial planning strategy.

When to revisit your plan

Families should consider reviewing their special needs trust and beneficiary designations if:

• The trust was created several years ago
• Retirement assets make up a significant part of the estate
• Family circumstances or goals have changed
• Documents have not been reviewed as part of broader estate planning

Before naming a special needs trust as the beneficiary of a retirement account, families may also want to consider:

• How large the retirement accounts are relative to other assets
• How taxes and distributions will be handled over time
• Who will serve as trustee and manage ongoing decisions

Even well-designed plans can benefit from periodic review. These decisions are less about finding a single “correct” answer and more about aligning the plan with the family’s priorities and values.

A thoughtful, integrated approach

Planning for a loved one with special needs is deeply personal. It’s about creating durability, flexibility, and reassurance, knowing support will be there over the long term.

Using retirement accounts and 401(k)s to fund a special needs trust can be a good plan. But it tends to work best when estate planning, retirement planning, and tax awareness are done from the start. When designed thoughtfully, retirement assets can provide steady, long-term support for a loved one with special needs while preserving dignity, independence, and reassurance for the entire family.

At Mercer Advisors, we approach special needs planning, retirement planning, trustee services, and estate planning as part of an integrated strategy designed around each family’s goals. By coordinating trust planning with retirement assets and tax awareness, families can build a plan that supports both today’s needs and tomorrow’s uncertainties.