Special Disability Trusts Australia: A Family Guide to Trusts and Disability Planning

Planning for the financial future of a vulnerable loved one is one of the most important things any family can do. It is also one of the most confusing. The rules sit at the crossroads of tax law, social security, and estate planning, and the language is so dense it can feel like trying to read a textbook underwater. Get one clause wrong, or sign a deed before you have Centrelink approval, and you can permanently trap your family's wealth with none of the benefits you were chasing.

At Aevum Accounting, we help families cut through that confusion and build a safe, legally compliant roadmap. In this guide we compare the three structures that come up again and again: the standard family trust, the heavy-duty Special Disability Trust, and the Testamentary Trust set up under a Will. Each does a very different job, and the right answer usually depends on how much you are setting aside and whether your loved one relies on a pension. All the figures below reflect the 2025-26 financial year.

The Standard Family Trust and the Sledgehammer of Division 6AA

Plenty of families already have a discretionary family trust running for their business or investments. The natural thought is, "I will just distribute some trust income to my child with a disability to help pay for their care." Simple, until you meet a penalty regime called Division 6AA.

Division 6AA was designed to stop wealthy adults from parking income in their children's names. For a normal minor, the tax-free threshold is not $18,200. It is a tiny $416 a year. The moment unearned trust income reaches $1,308, the ATO applies a flat 45% penalty tax rate to the entire amount, not just the slice above the threshold. You also cannot use the low income tax offset to soften it. Distribute trust income to an ordinary minor and you are effectively volunteering to hand half of it to the tax office.

There is, however, a genuine escape hatch for disability. It is called "excepted person" status under Section 102AC. If a minor child has a disability and meets the criteria at 30 June, meaning they are entitled to a Disability Support Pension, or a parent receives a Carer Allowance for them, or they are certified as permanently disabled, that 45% penalty tax disappears completely. The child is then treated as an adult for tax purposes. They get the full $18,200 tax-free threshold and ordinary marginal rates above it. That means a family trust can legally distribute a serious chunk of income to that child at a low or zero tax rate to fund their specialised needs.

The Section 100A Reality Check

This is where families get excited and the compliance flag goes up. The escape hatch only works if the distribution is real. That is the job of Section 100A.

The ATO actively hunts for "reimbursement agreements". That is where parents allocate, say, $18,000 to a child on paper to capture the low tax rate, but the parents keep the cash or spend it on their own holiday. Do that and the ATO can void the arrangement and tax the trustee at the top marginal rate. To comply with Section 100A, it has to be a genuine distribution, which means the cash must actually flow to benefit the child.

So what does a genuine distribution look like in practice? These are the kinds of expenses that qualify as real welfare for the child:

• Paying the child's specialised occupational therapy or speech therapy bills directly.

• Paying for medical, dental, or specialist appointments.

• Funding private health insurance or specialised mobility equipment.

• Paying for specialised education, tutoring, or modifications to the family home to accommodate their disability.

As long as the money is trackable and genuinely spent for the child's welfare, you are on safe ground under Section 100A.

The Special Disability Trust: Generous Concessions, Brutal Rigidity

A family trust is great for annual tax efficiency, but it does nothing to protect your loved one's long-term assets or preserve their government pension. If you want to set aside significant wealth without knocking out their Centrelink payments, you need to look at a Special Disability Trust, or SDT.

The concessions for 2025-26 are substantial:

• The asset exemption. Up to $832,750 in assessable assets held inside an SDT is completely invisible to the beneficiary's social security assets test.

• The primary residence carve-out. If the trust owns the home the beneficiary lives in, that property is also exempt, on top of the $832,750 limit.

• The income exemption. All income generated inside the trust is exempt from the beneficiary's income test, so they keep 100% of their Disability Support Pension.

• The family gifting concession. Normally, gifting a large sum to your children is treated by Centrelink as a "deprived asset" that reduces your own Age Pension. With an SDT, eligible immediate family members can gift a combined total of up to $500,000 into the trust with no gifting penalties.

There are tax perks to match. Retained income is taxed at the beneficiary's low marginal rate rather than the top estate rate, and transferring assets into the trust triggers an uncapped Capital Gains Tax exemption. In many cases the child is looked after and the parents' own Age Pension actually increases.

The trade-off is rigidity. An SDT can only ever have one beneficiary, and that person must pass a strict statutory assessment of "severe disability" by Services Australia, which generally means they cannot work more than 7 hours a week in the open market. The trust also carries a strict "sole purpose" restriction: the money can only be used for the beneficiary's genuine care and accommodation. If you want to spend on anything else, such as hobbies, a holiday, or recreation, Services Australia caps that discretionary spending at just $14,750 for the year. You also cannot pay family members to provide the care; it has to fund genuine third-party services. On top of that, you must submit annual financial statements and trustee declarations to the government every year.

Three Hidden SDT Landmines

The concessions are generous, but there are three traps that catch families out.

Landmine one is the five-year gifting clawback. Families assume that $500,000 gifting concession is locked in forever. It is not. If the trust loses its SDT status, or if the beneficiary sadly passes away within five years of the gift being made, Centrelink can claw that asset back into the parents' pension assessment. The only way to avoid that is if the remaining money is strictly returned to the original donors.

Landmine two is the compensation payout blockade. This one comes up constantly. A child receives a large court-awarded personal injury payout, and the family wants to move it into an SDT to shield it from Centrelink. You cannot. The law explicitly says the beneficiary cannot fund their own SDT using compensation money. They can only contribute from a bequest or a superannuation death benefit, and only within three years of receiving it.

Landmine three is state transfer duty. Everyone focuses on the federal Capital Gains Tax exemption when moving a property into the trust and forgets that stamp duty is run by the states. The concessions are not uniform across Australia. In Western Australia, for example, if you do not verify the rules of RevenueWA upfront, you could be hit with a large, unexpected state tax bill just for changing the title on the property.

The Decision Framework and the Testamentary Alternative

So when does an SDT actually make sense? The trigger point is fairly clear. An SDT is worth it if, and only if, your loved one relies heavily on a means-tested pension and the family is setting aside a large sum that would otherwise wipe that pension out. In that situation, the tax and pension savings easily outweigh the compliance burden.

But if the amount is relatively small, or the person does not meet the strict "severe disability" definition, the rigidity makes an SDT total overkill. That is when you look at the third option: a Testamentary Trust set up inside a Will.

Testamentary trusts are the flexible all-rounders of estate planning. You can have multiple beneficiaries, and the spending is not legally locked to care and accommodation. Better still, any income a minor receives from a testamentary trust from genuine deceased-estate assets is automatically taxed at ordinary adult marginal rates. The trade-off is that you get no social security exemptions, no special SDT capital gains tax break, and no $500,000 family gifting concession.

The honest takeaway is that there is no single magic bullet. The strongest plans usually combine these structures, using a family trust during your lifetime and mapping out a blend of testamentary and Special Disability Trusts within your Will. These are powerful tools for protecting a vulnerable loved one, but they are a genuine legal and tax minefield.

Build a Roadmap for Real Peace of Mind

Do not leave your family's peace of mind to guesswork or generic internet templates. The specialist team at Aevum Accounting can model your asset limits, calculate your tax scenarios, and build a compliant roadmap tailored to your family. Book a comprehensive planning session with our team today and structure your family's future with confidence.

Disclaimer: The information and financial figures shared in this article are based on the 2025-26 financial year guidelines and are for general informational purposes only. They do not constitute specific tax, financial, or legal advice. Every family's situation is unique, and trust laws are complex and constantly evolving. For personalised strategy tailored to your specific circumstances, we always recommend consulting with a qualified professional at Aevum Accounting.