Special Disability Trusts: a specific structure for families with a severely disabled beneficiary

For families with a child or relative who has a severe disability, planning for their long-term financial support is one of the most consequential and emotionally significant aspects of family planning. The concern is universal: what happens when we can no longer provide care directly? The Special Disability Trust (SDT) is a specific structural answer — a trust framework established by the Social Security Act 1991 precisely for beneficiaries with severe disabilities, with favourable Centrelink and tax treatment designed to support lifetime care without undermining the beneficiary's social security entitlements.

What does a Special Disability Trust provide for the beneficiary?

An SDT is established for the benefit of a single principal beneficiary — the person with the severe disability. The trust holds assets and distributes them for the beneficiary's reasonable care and accommodation, medical and dental costs, therapy, disability-related equipment, and some recreational and lifestyle purposes within the legislative limits. It can be established and funded during the parents' or relatives' lifetime, created by the will to be funded from the estate at death, or both. For families with substantial assets wanting to ensure ongoing provision for a severely disabled beneficiary without creating a welfare trap, the SDT is the structurally appropriate vehicle.

What are the two key Centrelink concessions for Special Disability Trusts?

The Centrelink concessions are the defining advantage of the SDT structure.

Concession 1 — Assets-test exemption for the beneficiary. Assessable assets held within an SDT up to the concessional asset value limit of $832,750 for 2025-26 are exempt from the principal beneficiary's assets test (Services Australia, https://www.servicesaustralia.gov.au/benefits-special-disability-trusts?context=21876). The threshold is indexed on 1 July each year to CPI. This means up to $832,750 in trust assets do not reduce the beneficiary's Disability Support Pension or other income support entitlements. Above the threshold, the excess is included in the beneficiary's assessable assets and assessed normally.

Concession 2 — Gifting concession for contributing family members. Immediate family members (parents, grandparents, siblings, and certain others — provided they are receiving a relevant pension and are of Age Pension or Service Pension age) can collectively gift up to $500,000 (unindexed lifetime combined limit) to the SDT without triggering Centrelink's gifting/deprivation rules (DSS Guide 4.14.4.20, https://guides.dss.gov.au/social-security-guide/4/14/4/20). Gifts above $500,000 in aggregate fall back into the standard deprivation rules and are assessed for five years from the date of the gift.

How much can an SDT spend on a beneficiary's lifestyle and recreation?

Beyond reasonable care and accommodation costs, the trust may apply a discretionary spending amount of up to $14,750 per year (current as at 1 July 2025, indexed annually) for additional costs relating to the beneficiary's health, wellbeing, recreation, independence, and social inclusion (DSS Guide; Services Australia). This is a useful "lifestyle" allowance that complements the core permitted distributions.

Who qualifies as a principal beneficiary of a Special Disability Trust?

The principal beneficiary must meet specific eligibility criteria under the SSAct. Broadly, they must be an Australian resident, have a severe disability or severe medical condition that satisfies the legislative definition, be unable to work at all due to the disability, and require ongoing care assistance for daily living. The eligibility determination is made by Services Australia and is specific — a general or modest disability does not qualify. The most common eligible situations involve severe intellectual disability, severe physical impairment, or severe psychiatric impairment of a magnitude that renders the person permanently unable to participate in employment and dependent on care assistance throughout their life.

Confirming eligibility before establishing the trust structure is the essential first step; a trust established on the assumption of eligibility that turns out to be incorrect produces significant problems.

How are Special Disability Trusts taxed?

The SDT receives a CGT main residence-style concession for any property it holds that serves as the principal beneficiary's home — the normal CGT event on disposal of that property does not apply in the same way as for a directly held investment property. Trust income distributed for the beneficiary's care and living expenses is treated in a manner consistent with the general concessional intent of the framework, though specific tax treatment depends on the trust's structure and the nature of the income. An accountant with SDT experience is the appropriate guide. The overall tax framework is more favourable than a standard discretionary trust — which is one of the reasons generic trust structures are inadequate substitutes.

What are the trustee obligations for a Special Disability Trust?

Trustees of an SDT have specific obligations beyond general trust law duties. Expenditure must be for permissible purposes; distributions outside those purposes breach the trust's eligibility for Centrelink concessions and may have broader consequences. Annual compliance reporting to Services Australia is required. Trustees must maintain proper records and can be personally liable for trust administration failures.

Given that an SDT is typically intended to operate for the beneficiary's entire lifetime — potentially 40 to 60 years or more — the question of trustee continuity deserves serious thought. Family members as sole trustees face the reality that they will predecease the beneficiary; professional trustee involvement, whether as co-trustee or as successor trustee, provides continuity across generations. The cost of professional trustee services is an estate expense that is typically well worth bearing for the certainty it provides.

Case study: establishing an SDT during the parents' lifetime

Consider Margaret and Robert, both 72, both on the part Age Pension. Their daughter Sarah, 38, has severe intellectual disability from birth and meets the SDT principal beneficiary criteria. Sarah currently receives the Disability Support Pension and lives in supported accommodation; her parents fund some additional therapy and care that the DSP doesn't cover.

Margaret and Robert want to establish an SDT during their lifetime to pre-fund Sarah's care for after they're gone. Their joint position: $1.4 million in financial assets plus their home. They establish an SDT for Sarah and contribute $500,000 (the combined gifting concession limit). Because both are pension-aged immediate family members, the $500,000 contribution is fully exempt from their own deprivation assessment — it does NOT count against their assets test or trigger the 5-year deprivation rule.

Sarah's position: her existing assets are minimal. The $500,000 in the SDT is fully exempt from her assets test (well under the $832,750 concessional limit). Her DSP is unaffected.

The $500,000 in trust generates investment income; the trustee distributes for Sarah's care needs (within permissible purposes) plus up to $14,750/year discretionary for lifestyle/recreation/inclusion costs. The remaining capital compounds for Sarah's longer-term care.

Margaret and Robert's combined assets are now $900,000 (down from $1.4M after the $500k gift) plus home — their own pension may increase modestly. Net result: $500k of family wealth permanently dedicated to Sarah's care, no Centrelink penalty for parents, no Centrelink penalty for Sarah, lifelong care framework established.

Their will additionally directs that further estate value will flow into the SDT on their deaths — that residue is also exempt from their deprivation rules (post-death contributions to an SDT are treated as testamentary gifts, distinct from lifetime gifting concession rules). Coordinated solicitor + accountant + financial-adviser advice is essential to get the structure right.

Case study: establishing an SDT through the will

Consider Helen, 80, widowed, lives alone, has $2.1 million in financial assets and her home. Her son James, 52, has been in psychiatric care since his late teens with severe psychiatric impairment and is on the DSP and lives in supported accommodation. Helen's other son, David, 50, is married with children and financially independent.

Helen does not want to disrupt her own retirement income by gifting during life. Instead, her will establishes a testamentary SDT for James, into which $1.0 million of her estate is to flow on her death. The remaining $1.1 million of estate value plus the home is to go to David.

On Helen's death (whenever that comes), the $1.0M flows into the testamentary SDT. James's position post-Helen-death: $832,750 of the $1.0M is exempt from his assets test under the concessional limit. The excess $167,250 is added to his assessable assets — modest impact on his DSP. The trust's annual distributions support James's care and lifestyle for his lifetime.

The will treats David and James equitably in spirit (different forms of provision: care-funded trust for one, direct inheritance for the other), and the disability law solicitor drafts the will so it explicitly acknowledges the asymmetry — reducing the prospect of a family provision claim from David (who arguably could have argued for a larger share if the asymmetry weren't explained).

How does an SDT fit into the broader estate plan?

The SDT is one part of the family's broader estate and retirement plan, not a standalone solution. Where one child has a disability and others do not, the SDT allocation for the disabled beneficiary's care represents a different form of provision than a direct inheritance — the intention is care, not wealth transfer. The will should address how this sits alongside inheritance provisions for other children, both to reflect the testator's actual intent and to reduce the prospect of family provision claims or resentment among siblings. Parents' own retirement security must be planned for independently; the SDT supplements parental care during life but does not substitute for the parents' own financial independence.

For families in this situation, coordinated specialist advice from a disability law solicitor, an accountant with SDT experience, and a licensed financial adviser is the appropriate starting point. The SDT framework is specific enough that generic advice from professionals without direct experience consistently produces inadequate outcomes.

Sources

• Services Australia — Benefits special disability trusts
• Services Australia — Eligibility for gifting concessions to special disability trust
• DSS Social Security Guide
• DSS Social Security Guide
• dva.gov.au — The effects of a special disability trust