
Testamentary Trusts
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How do I write my own will?Dormers does not recommend anyone writes their own will.
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Why should I have a will?If you don’t have a will, then you have no executor and therefore, no one is authorised to represent your estate once you die. An application for Letters of Administration can also cost thousands of dollars and there is complexity around the process. The other thing to remember is that someone you don’t even like or know could end up being your Administrator. If you leave a will, then you can say who manages your estate when you die.
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But I don’t have any assets, what’s the point in having a will?These days, everyone at least has superannuation so there is some risk that may fall within notional estate, in NSW at least. Most super policies also contain life insurance, which can be substantial. This can become part of your estate in some cases.
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What is testamentary capacity?In order for a will to be valid, the will-maker must have testamentary capacity. This means that the will-maker must: understand the nature of making a will and the effect of making a will understand, at least in general terms, the nature and extent of the property of which they are disposing be aware of those who might be thought to have a claim upon their testamentary bounty have the ability to evaluate and discriminate between the respective strengths of the claims of such persons
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Do I truly have testamentary freedom?You are free to set out your wishes and how you would like your assets to be distributed after death in a will. Such a freedom, however, is not absolute in Australia.
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What are mutual wills?Mutual wills can also be called mutual will contracts. Mutual wills form a legally binding contract between two people. It involves two wills being drafted in terms that both parties agree to, and it prohibits either party from revoking or amending their will unless the other party agrees. As a result, when one person dies, both wills can no longer be amended. See also: The Curious Case of the Mutual Will
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What is the difference between a “normal” will and mutual wills?Usually, normal wills are revocable. That means it can be cancelled and you can make a new one. However, mutual wills can only be revoked while both parties are still alive, have capacity, and when there is agreement between the parties. Therefore, mutual wills contain an express or implied agreement not to revoke the will after the death or incapacity of either party.
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What is an example of a mutual will?An example may be where a couple makes an agreement that when the surviving partner dies their property will go to a specified beneficiary. Another example may only deal with the will of one of the parties. For example, when a housekeeper agrees to work for free on the basis that their employer will leave the house and contents to them.
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When would I be involved in a mutual will?A common scenario is when you wish to gift your estate to your surviving spouse to ensure your wealth passes on to your children when your surviving spouse dies. A mutual will would ensure that when you die, your surviving spouse cannot amend or revoke the will. This means your children will become the “ultimate beneficiaries” of your estate. In another case, you may wish to gift your estate directly to your children without gifting anything to your surviving spouse. In such a case, a mutual will could prevent your surviving spouse from making a family provision claim against your estate.
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Are mutual wills confined to husbands and wives?No. Mutual wills can be made between any two people who wish to bind each other to an estate plan.
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What happens if one party breaches the mutual will?If your surviving spouse breaches the mutual will, you can reply on the mutual wills contract to obtain some type of compensation.
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Can you give me an example of how a mutual will would work?Imagine Clare and John are married. They each have a daughter from a previous marriage. They make wills to agree to leave their assets to each other. In such wills, they agree the estate of the surviving spouse would be equally divided between Clare’s daughter and John’s daughter. John dies a few years later and his estate passes to Clare. At the time of John’s death, Clare’s estate is held on a constructive trust. (Constructive trust is an arrangement where a person holds property as the owner for the benefit of at least one beneficiary). This means that Clare must deal with the assets in the estate in the way that was outlined in the mutual will.
Cost of Making a Testamentary Trust
The cost of creating a Testamentary Trust is usually incorporated into the cost of preparing your will with a qualified estate planning solicitor.
In NSW, prices can vary depending on the complexity of your estate and how many Trusts are being created.

ESSENTIALS PACKAGE
$800
PLUS GST AND DISBURSEMENTS
Includes:
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Basic Will
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Power of Attorney
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Enduring Guardianship
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Safe custody with Dormer Stanhope
Get the must-haves sorted without the fuss. Our Essentials Package covers the basics to make sure your wishes are clear and protected.

CUSTOM PACKAGE
FROM $950
PLUS GST AND DISBURSEMENTS
Includes:
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A Will tailored to your specific needs, for example, if you own a business, have a blended family, a self-managed super fund, or require a long-term trust (known as a testamentary trust) or certain conditions in your Will
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Power of Attorney
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Enduring Guardianship
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Safe custody with Dormer Stanhope
Types of Testamentary Trusts
There’s no one-size-fits-all approach. The Trust you set up should reflect your family’s unique needs:
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Discretionary Testamentary Trusts give the trustee flexibility to decide how and when to distribute income or capital
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Protective Trusts are tailored for beneficiaries with disabilities or those in high-risk situations who need long-term financial support
Is It Right for You?
Testamentary Trusts add a layer of complexity, but also greater peace of mind. If your estate or family situation requires a little extra thought and protection, it’s worth discussing with an estate planning expert.
What’s the difference between a Testamentary Trust and a Simple Will?
More flexible and protective than a simple will but involves more complexity.
Feature | Simple Will | Testamentary Trust |
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Asset Distribution | Direct to beneficiary | Managed by Trustee |
Protection | Minimal | Strong protection from external risks |
Tax Planning | Limited | Income splitting and minor tax benefits |
Flexibility | Fixed | Customisable and adaptable |
When might you need one?
You might consider a testamentary trust if:
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You have young children or dependants
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A beneficiary is vulnerable, facing health, disability, or financial challenges
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You want to protect an inheritance from relationship breakdowns or legal claims
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Your family structure is blended or complex
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You’re looking for long-term tax planning benefits
Why would you need a Testamentary Trust?
A Testamentary Trust helps ensure your estate is used wisely, by the right people, at the right time. It can:
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Protect assets from creditors, family disputes or breakdowns, lawsuits, or poor financial decisions
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Provide structured support for children, beneficiaries with disabilities, or those who may require financial guidance
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Enable tax-effective income distribution, particularly when beneficiaries are minors
This added structure can make a meaningful difference in preserving your legacy and ensuring it’s used as you intended.
What is a Testamentary Trust?
A Testamentary Trust is created through your will that only comes into effect after your death. It's a powerful estate planning tool that sets out instructions for how and when your assets are managed and distributed.
Unlike a simple will that passes assets directly to beneficiaries, a Testamentary Trust holds those assets within a protective structure called a Trust and appoints a trustee to manage them. The Trustee can control how and when distributions are made, in accordance with the terms you’ve set.
Sometimes, a basic will isn’t enough. Life is unpredictable and so are the needs of your loved ones. Maybe your beneficiaries are young, going through significant life changes, or facing challenges like disability or financial vulnerability. Maybe you’re concerned about future risks such as relationship breakdowns, business liabilities, or taxation.
A Testamentary Trust, built into your will, offers an extra layer of care, protection, and flexibility for those you leave behind.