Disputes over wills and estates are on the rise in Australia, with thousands of family provision claims and will challenges brought before the courts each year. While most people assume a will is final, the law recognizes that there are situations where a will can be questioned, adjusted, or even declared invalid.
This is known as a contested estate. It occurs when someone challenges a will’s legal validity or argues that the deceased failed to make proper provision for them. These disputes can involve spouses, children, stepchildren, former partners, and other dependants, and they often arise at an already emotionally difficult time.
A contested estate arises when there is a dispute over how a deceased person’s assets are distributed after they die. This dispute usually happens after someone has applied for probate (the court process that confirms a will is valid) or during the administration of the estate. Usually the conflict centres around disagreements between family members or beneficiaries about what the will says or how it should be interpreted.
These disputes are often emotionally charged because they involve a loved one’s final wishes as well as financial and family dynamics. Some common reasons estates become contested include claims that the will does not provide adequately for someone who ought to benefit, questions about whether the will is genuine, or allegations the will was made under pressure or without proper mental capacity.
A will challenge is a specific type of legal action where someone seeks to have the will declared invalid or asks a court to adjust how an estate is distributed. In Australia, challenge rights and time limits vary between states and territories, but there are some general principles that apply nationally.
Broadly speaking, a will can be challenged:
This is when someone argues that the will itself is not legally valid. Common legal issues include:
Challenging the validity of a will focuses on the legality of the document itself and whether it truly reflects the wishes of the deceased.
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Even if the will is legally valid, someone may still contest how the estate has been distributed. These are known as family provision claims. If a person feels they have not received adequate provision from the estate, they may be able to seek a further share. This is commonly the type of dispute that leads to contested estates and is pursued through applications to the Supreme Court in the relevant state or territory.
In most jurisdictions, the court can adjust the estate if it believes the deceased failed to make reasonable provision for someone who was dependent on them or had a moral obligation to provide.
Not everyone can challenge a will. Australian succession laws set out specific categories of people who may be eligible to make a claim. Eligibility generally includes:
These lists can vary slightly depending on the state or territory, but the principle is the same: only people with a close relationship to the deceased or genuine financial need may be eligible to apply.
If you are unsure whether you are eligible, speaking with a contested estate lawyer early is vital to understand your rights.
Timing is crucial when it comes to contested estates. Each Australian jurisdiction has its own deadlines:
Missing a time limit can mean losing the right to challenge the will unless a court grants special leave, which can be difficult.

Contested estates arise for a range of reasons. Here are some of the most frequently encountered:
A beneficiary believes they have been left without sufficient support or provision from the estate. This is the most common basis for family provision claims.
If someone lacked mental capacity when making the will, the document may be invalid.
Someone may allege that a beneficiary pressured the testator into making changes to benefit themselves or disadvantage others.
If the will was not signed and witnessed as required by law, it may be invalid.
Where there are signs the will was tampered with or created by someone other than the testator.
Understanding your rights early helps you act within the relevant timeframes and prepare your case properly.
If you plan to challenge a will on provision grounds, first writing to the executor to notify them of your intention is typically required.
A formal application (e.g. family provision claim) is lodged with the Supreme Court of the relevant state or territory.
Both sides prepare evidence and may engage in negotiations or mediation to seek a resolution without going to trial.
If the matter can’t be resolved, the court will decide based on the evidence, the law and what is fair in the circumstances.
The court’s role is not to decide whether a will seems “fair” in a general sense, but whether the testator made reasonable provision for eligible people and whether the will meets legal requirements. Legal support can significantly influence outcomes and help navigate negotiations or court proceedings.
If you are preparing your own estate plan, there are practical steps you can take to reduce the risk of disputes in the future:
These steps will not eliminate all risk, but they can help prevent misunderstandings and strengthen your will’s validity.
Contesting a will or dealing with a contested estate involves complex legal rules and strict deadlines. Legal professionals experienced in estate litigation can:
Early advice helps protect your rights and increases the likelihood of a favourable outcome.
If you want to learn more about preparing a solid estate plan, check out Buckley Lawyers’ guide on Contested Estates and How Probate Works to understand the broader context of succession law and wills.
A contested estate or a will challenge is often emotionally and legally challenging, but it is also an important safeguard for people who have genuine rights to adequate provision from a loved one’s estate. Understanding the legal framework, time limits and your options can empower you to make informed decisions during a difficult time.
If you have questions about contested estates, wills or succession law in Australia, speak with one of the experienced lawyers at Buckley Lawyers. Our team can help you understand your rights and guide you through every step of the process with clarity and compassion.
If you believe you may have a contested estate matter or need advice about challenging a will, contact Buckley Lawyers today for a confidential consultation and personalized guidance tailored to your situation.