When your child needs additional support, leaving an inheritance can raise questions beyond who receives the money. Who will help manage it? Could it affect benefits? And who should receive anything left if your child were to pass away?
A carefully drafted trust can be one way to plan for those questions. The right arrangement depends on your child’s circumstances, and a diagnosis alone does not tell us which trust will be suitable.
What is a trust, in plain English?
A trust is a legal arrangement in which trustees hold and manage assets for beneficiaries. In a Will trust, the relevant assets enter the trust after your death, as your estate is administered.
Think of the Will as setting the rules: who is to be supported, what powers the trustees have and what happens later. The trustees must follow those rules. The money is not theirs to spend as they please.
Why might an outright inheritance cause difficulties?
Some people would welcome and confidently manage money in their own name. Others may need help with financial decisions or could be vulnerable to pressure. An outright inheritance may also affect means-tested benefits and care funding.
Leaving everything to a sibling with an informal request to “look after” your child creates different risks. That money would belong to the sibling and could be affected by their own death, relationship breakdown or financial problems. A properly structured trust can set out enforceable responsibilities.
How can trustees help?
Depending on the trust wording, trustees may arrange support with equipment, activities, holidays or other needs. They should understand the person, keep records, review expenditure and obtain appropriate advice. A letter of wishes can explain routines, preferences and what makes life enjoyable, while leaving room for needs to change.
Your child should be involved in decisions as far as appropriate. Disability does not automatically mean someone lacks mental capacity; capacity is decision-specific.
Will it protect benefits?
Some trusts can prevent the trust capital being treated as the beneficiary’s own capital for means testing, but this is not a blanket guarantee. The type of trust, rights to income or capital, source of funds and actual payments all matter.
Trustees should check benefits and care-funding consequences before making payments. Disability Living Allowance and Personal Independence Payment are not themselves means-tested, although the person may also receive other support which is.
Is a disabled person’s trust tax-free?
No. Some arrangements qualify for favourable tax treatment, subject to statutory conditions. Eligibility can depend on specified benefit criteria or other qualifying circumstances, as well as the trust terms. For example, middle- or highest-rate DLA care can be relevant, but entitlement must be checked.
Income Tax and Capital Gains Tax relief may require a vulnerable-person election. Inheritance Tax has its own rules. A trust should not be described as qualifying simply because its title says “vulnerable person’s trust”. Specialist drafting and tax advice help ensure the intended treatment is available.
Why do you need backup beneficiaries?
There are two separate questions to answer. First, who should receive the intended gift if your child passes away before you and the trust never begins? Second, who should receive any remaining trust assets if your child passes away after the trust has started?
You might choose siblings, their children, a charity or a combination. These are choices to record clearly, including what happens if a backup beneficiary cannot inherit. You should not assume the money will automatically go to the relatives you have in mind.
Naming people to receive what remains later does not necessarily give them unrestricted access while your child is alive. Their rights must fit the trust’s purpose and any conditions for special tax treatment.
Choose trustees who can work together
Consider people who know your child, can manage records and will seek help when needed. Discuss conflicts of interest if a trustee is also due to inherit the remaining fund. Think about replacements so the arrangement can continue over many years.
Start with your family’s needs
Nene Legal can help you discuss your wishes, suitable trustees and backup beneficiaries, with specialist input where appropriate. For a friendly conversation and free home visits across Northamptonshire, call 01933 588 990 or visit Nene Legal.
Further reading
- GOV.UK: Trusts and taxes
- GOV.UK: Trusts for vulnerable people
- Scope: Trusts to support a disabled person
Checked 10 November 2026. General information for England and Wales. Trust, tax, benefit and care-funding outcomes depend on individual circumstances. Safer Wills Limited trading as Nene Legal.
