Testamentary trusts in Queensland: are they worth it?

A testamentary trust is a trust created by your will that comes into existence when you die. Instead of a beneficiary receiving their inheritance outright, it is held in a trust they usually control, and income and capital are distributed from there. Done for the right reasons it is one of the most effective estate planning tools available. Done because it sounded sophisticated, it is an annual accounting bill for no benefit.

Written by Michael Klein, Legal Practice Director, admitted 2003 · General information about Queensland law · Last reviewed 2026

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How a testamentary trust works

Your will sets up the trust and names the trustee — very often the adult beneficiary themselves — and the class of beneficiaries, typically that person, their spouse, their children and related entities. Nothing happens while you are alive. On your death, the executor administers the estate and transfers the relevant assets into the trust rather than to the beneficiary personally.

From then on the trustee decides each year who receives income and capital from within the beneficiary class. That discretion is where both the tax advantage and the asset protection come from.

The tax advantage — the excepted trust income rule

Income distributed to a minor from an ordinary family trust is taxed at penalty rates that begin at a few hundred dollars. Income distributed to a minor from a testamentary trust is 'excepted trust income' and is taxed at ordinary adult marginal rates, which means it attracts the full tax-free threshold.

For a beneficiary with young children, that can be several thousand dollars of tax-free income per child each year, indefinitely, on the inherited capital. Over the life of a trust that is a substantial sum, and it is the single most common reason a testamentary trust is worth setting up.

Integrity rules introduced in 2019 confine the concession to income from assets that came from the estate — you cannot inject unrelated assets into the trust to soak up the benefit. The trust must be properly administered and the estate assets identifiable.

Asset protection — the reason most clients ask

Assets held in a testamentary trust are not owned by the beneficiary personally. That matters in three situations that come up constantly:

  • Relationship breakdown — trust assets are not automatically property of the marriage, though the Family Court can still treat a trust the beneficiary controls as a financial resource or, in some cases, as property; control and history of distributions matter
  • Bankruptcy — an inheritance received outright vests in the trustee in bankruptcy; assets in a properly structured trust generally do not, which is why the structure matters for beneficiaries in business or professional practice
  • Vulnerability — a beneficiary with an addiction, a disability, an intellectual impairment or simply no financial judgement can be provided for without ever holding the capital, with an independent trustee making the decisions

When a testamentary trust is worth it

As a rough guide, the structure earns its keep where one or more of the following apply:

  • The estate is substantial enough to generate meaningful investment income — the tax benefit scales with the income, not the sentiment
  • A beneficiary has, or will have, minor children
  • A beneficiary runs a business, is a company director, or works in a profession exposed to claims
  • A beneficiary's relationship is unstable, or you want the inheritance to stay in the bloodline
  • A beneficiary has a disability, an addiction or a history of poor financial decisions
  • You are leaving a blended family and want to provide for a spouse for life with the capital passing to your own children

When it is not worth it

A modest estate that will be spent within a year or two on a mortgage does not justify a trust. Neither does a plan where every beneficiary is a financially settled adult with no children, no exposure and no intention of leaving the money invested.

Be honest about the running costs. Each trust needs its own tax file number, an annual tax return, financial statements and annual distribution resolutions before 30 June. Budget for accounting fees every year for as long as the trust runs. If nobody in the family will keep up with the resolutions, the structure will be administered badly and the concessions can be lost.

Optional or mandatory?

Most well-drafted Queensland wills make the testamentary trust optional. The beneficiary is given a period after death — often within a set number of months — to elect whether to take their share outright or through the trust, with the trust as the default.

That flexibility is valuable, because circumstances at your death may be nothing like circumstances today. Mandatory trusts are reserved for situations where the very point is to keep control away from the beneficiary — vulnerability, addiction, or a blended family where the capital must pass on.

Choosing the trustee and drafting the controls

Where the purpose is tax and asset protection, the beneficiary is usually their own trustee — they control their inheritance while holding it in a protective structure. Where the purpose is to protect a beneficiary from themselves, the trustee must be someone else, with a mechanism for replacing them and a clear line of succession.

  • Name the appointor — the person who can hire and fire the trustee; this is where real control sits
  • Define the beneficiary class carefully: too narrow defeats the tax planning, too broad creates duty and family provision arguments
  • Deal with succession on the beneficiary's death — does the trust continue for their children, or vest?
  • Set the vesting date; Queensland's rule against perpetuities limits the maximum term
  • Address who pays the trust's costs, and whether the trustee may borrow, invest in business or hold the family home

How it fits with the rest of your estate plan

Superannuation and life insurance often make up the bulk of an estate and do not automatically pass under your will. Directing super to the estate through a binding death benefit nomination so it can flow into the trust needs care — the tax treatment for adult, non-dependent children differs sharply.

Assets held in a family trust or a company are not yours to give in your will either; what passes is control. A testamentary trust is one part of a plan that also has to deal with super, jointly held property, business succession and your enduring power of attorney.

Testamentary trust questions we are asked in Queensland

What is a testamentary trust?

A trust created by your will that starts when you die. Instead of a beneficiary inheriting outright, their share is held in trust — usually with them as trustee — and income and capital are distributed from within a defined family class.

What is the tax benefit of a testamentary trust?

Income distributed to a minor beneficiary from a testamentary trust is excepted trust income, taxed at ordinary adult marginal rates with the full tax-free threshold, rather than at the penalty rates that apply to minors' income from ordinary trusts. For a family with young children that can be several thousand dollars of tax-free income per child each year.

Does a testamentary trust protect against divorce?

It helps but it is not absolute. Assets in the trust are not owned personally, but the Family Court can treat a trust a party effectively controls as a financial resource or, on some facts, as property. Independent trustee control and a disciplined distribution history strengthen the position.

How much does a testamentary trust cost?

The will costs more to draft than a simple will because the trust terms are substantial. The ongoing cost is the real consideration: each trust needs its own tax file number, annual financial statements, a tax return and annual distribution resolutions, so budget for accounting fees every year the trust runs.

Can a beneficiary choose not to use the trust?

Yes, where the will is drafted with an optional trust — the standard approach. The beneficiary elects within a set period after death whether to take their share outright or through the trust. Mandatory trusts are used only where keeping control away from the beneficiary is the point.

Can a testamentary trust be contested?

The will that creates it can be. A family provision application in Queensland must generally be notified within six months and filed within nine months of death, and the court can vary the distribution regardless of the trust structure. A trust manages tax and protection after the estate is settled; it does not prevent a claim.

How long can a testamentary trust last?

Up to the maximum perpetuity period permitted in Queensland, set as the vesting date in the will — commonly 80 years. Many trusts are wound up long before that once the tax and protection reasons have passed.

Can superannuation be paid into a testamentary trust?

Only if the death benefit is directed to your estate, usually through a binding death benefit nomination, and the will then directs it into the trust. The tax treatment differs sharply depending on whether the recipient is a tax dependant, so this needs to be planned with your accountant and adviser rather than assumed.

This guide is general information about Queensland law, current at the time of writing. It is not legal advice and does not take your circumstances into account. Call Coastside Law on 0488 340 853 for advice on your own matter.

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