Do You Have to Go to Court to Contest a Will, or Can It Be Mediated?

You discover your parent's will leaves the family business to your sibling, and you've been given almost nothing.

Your first thought might be: "Do I have to take this to court?"

The short answer: probably not. Most will disputes in Australia are resolved through mediation or negotiated settlement. Court sits in the background, but you don't have to step into a courtroom to reach an outcome.

What you do need is a clear understanding of your options, a realistic assessment of your position, and a strategy that protects your interests without burning through money and relationships unnecessarily.

This guide walks you through how estate disputes are actually resolved in Australia, when mediation is the right path, when court becomes necessary, and what you should do first if you're facing a will dispute right now.

Contesting a Will Doesn't Always Mean Going to Court

When most people hear "contesting a will", they picture a courtroom scene: lawyers in robes, cross-examination, a judge handing down a decision.

The reality is far more practical.

Most Australian will disputes, particularly family provision claims where someone seeks a greater share of an estate, are resolved through mediation or negotiated settlement. Court is there if you need it, but it's rarely where these matters end.

Here's how it actually works.

If you want to challenge a will, you usually start by instructing a lawyer who writes to the executor setting out your position. In many cases, that letter kicks off a negotiation. You might reach agreement without ever filing court documents.

If negotiation doesn't work, you file a claim in your state's Supreme Court. But filing doesn't mean "going to trial". It means you're entering a process that includes case management, evidence exchange, and, almost always, court-directed mediation.

In jurisdictions like New South Wales, mediation in family provision claims is effectively compulsory. The court won't list your matter for a full hearing until you've attempted to settle at mediation. Other states follow similar practice, even where it's not formally mandatory.

So the question isn't really "court or mediation?" It's "can we settle this at mediation, or do we need a judge to decide?"

For many disputes, mediation is where the work gets done. Court sits behind it, providing the framework and the incentive to settle, but most parties never make it to a hearing.

That doesn't mean mediation is soft or informal. It's a structured process with real consequences. But it gives you control over the outcome in a way that court rarely does.

How Will Disputes Are Usually Resolved in Australia

Not all will disputes are the same. The path you take depends on what you're actually challenging.

Two types of disputes

Australian estate disputes typically fall into two categories:

Validity challenges. You're arguing the will itself is invalid. Maybe the deceased lacked mental capacity when they signed it. Maybe someone exerted undue influence or pressure. Maybe the will wasn't properly witnessed.

These disputes require evidence. They often involve competing medical opinions, witness testimony about the deceased's state of mind, and detailed examination of the circumstances in which the will was made.

If you're alleging fraud or coercion, a court may be the only forum that can properly test those allegations.

Family provision claims. The will is valid, but you're arguing that it doesn't make adequate provision for you. You believe you've been left out or short-changed, and you're seeking a greater share from the estate.

These claims don't question the validity of the will. They're about whether the distribution is fair, having regard to your relationship with the deceased, your financial needs, and the size of the estate.

Family provision claims are by far the most common estate disputes in Australia. And they're where mediation plays its biggest role.

The typical pathway for a family provision claim

You discover you've been left out of a will, or given far less than you expected.

Your lawyer reviews your position. Can you bring a claim? Are you within the time limit? (Usually six to twelve months from death or grant of probate, depending on your state.) Do you have a realistic case?

If the answer is yes, you'll usually start with a letter to the executor. Sometimes called a "letter before claim", it sets out who you are, why you believe you're entitled to further provision, and what you're seeking.

The executor might respond with an offer. You might negotiate directly. If you reach agreement, you document it in a deed of settlement and, in most cases, seek court orders to give it effect.

If you can't agree, you file a claim in the Supreme Court. You'll prepare affidavits, sworn statements setting out your relationship with the deceased, your financial position, and why you should receive more. The other parties file their evidence in response.

At some point, usually within a few months of filing, the court will direct the parties to attend mediation.

That's where most matters settle.

What Mediation Looks Like in a Will Dispute

Mediation isn't a casual conversation. It's a structured negotiation, usually lasting a full day, facilitated by an experienced mediator.

Here's what actually happens.

Who's in the room

The parties to the dispute attend: the person making the claim, the executor (representing the estate), and any beneficiaries whose interests are affected.

Everyone brings their lawyer.

The mediator is usually a retired judge, senior barrister, or experienced solicitor with deep expertise in estate law. They're not there to decide the case. Their job is to help the parties find common ground.

How the day unfolds

Mediation typically starts with everyone in the same room. The mediator explains the process, sets ground rules, and gives each party a chance to outline their position.

After that, you usually split into separate rooms. The mediator moves between rooms, testing arguments, exploring settlement options, and gradually narrowing the gap.

You might make an offer. The executor might make a counter-offer. The mediator will pressure-test both sides: "What happens if you don't settle today? What's your risk at a hearing? What are the legal costs going to be?"

This can go on for hours. It's tiring. It's often emotional. But it's designed to force everyone to confront the risks and costs of continuing to a full hearing.

Confidentiality and without prejudice discussions

Everything said at mediation is confidential and "without prejudice". That means it can't be used in court if the mediation fails.

This gives parties freedom to negotiate without worrying that an offer will be held against them later. You can propose a settlement, test the other side's position, and explore options that you might never put on the table in open court.

Recording the settlement

If you reach agreement, the mediator will draft heads of agreement on the spot. These are usually handwritten or typed notes setting out the key terms: who gets what, when, and under what conditions.

You sign them that day. They're not the final document, your lawyers will draft a formal deed of settlement, but they're binding as an in-principle agreement.

In family provision claims, you'll usually need to go back to court to have the settlement approved and turned into court orders. This protects the executor and ensures the settlement is legally effective.

Can You Settle a Will Dispute Out of Court?

Yes. But "out of court" doesn't mean "without the court's involvement".

In family provision claims, settlements are usually documented as consent orders and filed with the Supreme Court. This gives them legal effect and protects the executor from future claims.

The court doesn't scrutinise every settlement in detail, but it does need to approve the orders. Judges will check that the settlement is within the court's power to make and that it properly resolves the claim.

So while you're not having a hearing, you're still using the court's processes to formalise the outcome.

Negotiated settlements before filing

You don't have to file a court claim to settle a will dispute.

If negotiations start early and the executor is willing to make an offer, you can reach agreement before anyone goes near the Supreme Court.

This is fastest and cheapest. You draft a deed of settlement, everyone signs, and the estate is distributed according to the agreed terms.

The downside: there's no court order protecting the executor. If you're the executor, you might want the certainty of court approval, especially if the dispute involved competing claims or significant estate assets.

In practice, most executors prefer to have court orders, even if the parties have agreed. It's the cleanest way to close the estate and move on.

When court approval is required

In family provision claims, court approval isn't just good practice, it's often legally necessary.

The settlement is an agreement to vary the effect of the will. Courts need to satisfy themselves that the settlement is within their jurisdiction and that it properly resolves the claim.

This doesn't mean a full hearing. The parties file consent orders and a short agreed statement of facts. A registrar or judge reviews the documents, and if everything is in order, the orders are made.

It's a formality, but an important one.

When You're Likely to Need a Court Hearing

Mediation resolves most will disputes. But not all.

Some cases genuinely need a judge.

Validity challenges with serious allegations

If you're alleging that the deceased lacked capacity, was subject to undue influence, or that the will is a forgery, mediation might not be enough.

These claims require a court to make findings of fact based on evidence. A mediator can help you reach a commercial settlement, but they can't determine whether the will is valid. Only a judge can do that.

You might still attend mediation, courts will often direct it even in validity disputes, but if the core issue is "was this will properly made?", expect to go to a hearing.

Entrenched conflict and distrust

Sometimes the parties simply won't settle.

One side might believe they're entirely in the right and refuse to compromise. There might be deep family rifts that make negotiation impossible. Or the dispute might involve allegations of dishonesty or misconduct that can't be resolved by splitting the difference.

In those situations, court is the only option.

Complex or high-value estates with competing claims

Estates with significant assets, multiple competing claims, and complex legal questions might need judicial determination.

This is especially true if there are third-party interests involved, for example, disputes over jointly owned property, business assets, or claims by creditors.

Courts are also better equipped than mediators to deal with disputes where the facts are genuinely contested, where expert evidence is required, or where novel legal issues need to be resolved.

When someone wants vindication, not just money

Not every dispute is about the dollar figure.

Sometimes a claimant or executor wants a public finding, to prove they were right, to clear their name, or to uphold the deceased's intentions.

Mediation settles disputes. It doesn't provide vindication. If you need a judgment that says "the will was valid" or "this claim had no merit", you'll need a hearing.

But be honest with yourself about whether that outcome is worth the cost and time. Vindication is expensive.

Costs, Time and Impact: Mediation Versus a Court Hearing

Let's talk about what these pathways actually cost, how long they take, and what they do to you and your family.

Legal costs

Mediation in an estate dispute typically costs each party $20,000 to $50,000 in legal fees, depending on the complexity of the case, the amount of evidence required, and how much negotiation happens before the mediation day.

Add the mediator's fee, usually $5,000 to $10,000, split between the parties, and you're looking at a total outlay for each side of around $25,000 to $60,000 to get to and through mediation.

If you settle, that's where it ends.

A full court hearing is a different order of magnitude.

Preparing for trial involves detailed affidavits, expert reports, witness statements, discovery of documents, and often multiple interlocutory hearings. The hearing itself might run for several days.

Legal costs for a contested estate trial can easily reach $150,000 to $300,000 per party. In high-value or complex estates, they can be significantly more.

And if you lose, you'll usually be ordered to pay a substantial portion of the other side's costs as well.

Time

Mediation usually happens within three to six months of filing a claim.

If you settle, the estate can be distributed shortly after. The whole process, from first letter to final distribution, might take six to twelve months.

A court hearing is slower.

From filing to trial, you're looking at eighteen months to two years in most jurisdictions. Complex cases can take longer.

During that time, the estate is frozen. Assets can't be distributed. Business operations might be on hold. Relationships deteriorate.

Emotional and business disruption

Will disputes are exhausting.

They're not abstract legal arguments. They're about family, grief, fairness, and often the legacy of someone you loved.

Mediation is intense, but it's finite. You go in, you negotiate hard, and you walk out with a resolution.

Court drags on. Affidavits require you to lay out your personal and financial life in detail. Cross-examination can be brutal. The uncertainty gnaws at you for months or years.

If you're running a family business or managing estate assets that need active decision-making, the disruption is even worse.

Mediation keeps the dispute contained. Court spreads it across the public record and consumes enormous energy and focus.

Privacy

Mediation is private. What's said in the room stays in the room.

Court is public. Affidavits, witness statements, and judgments are on the public record. Anyone can read them.

For families with significant wealth, business interests, or just a desire to keep things out of the media, privacy is a powerful reason to settle at mediation.

What You Should Do First if You're Facing a Will Dispute

You've just found out you've been left out of a will. Or you're an executor, and someone has sent you a lawyer's letter threatening a claim.

What do you actually do this week?

Step one: don't distribute the estate (if you're the executor)

If you're the executor and you receive notice of a potential claim, stop.

Do not distribute assets. Do not sell property. Do not transfer business interests.

If you distribute the estate and a court later orders that the claimant should have received more, you might be personally liable for the difference.

Your first job is to preserve the estate and get legal advice.

Step two: talk to a specialist estate litigation lawyer

Will disputes sit at the intersection of succession law, equity, family dynamics, and commercial risk. They're not general legal work.

You need a lawyer who litigates estate disputes regularly, understands the court processes in your state, and knows how mediation works in practice.

Don't go to a generalist. Don't assume your conveyancing solicitor or family lawyer can handle this. You need someone who does contested estates day in, day out.

Step three: gather your documents and understand your position

Whether you're making a claim or defending one, you need to get organised fast.

If you're claiming, gather:

• The will and any earlier wills
• Evidence of your relationship with the deceased
• Your financial position: income, expenses, assets, liabilities
• Evidence of contributions you made or promises the deceased made to you
• Any correspondence with the deceased or other family members about the estate

If you're the executor, gather:

• The will and any codicils
• A schedule of estate assets and liabilities
• Evidence about the deceased's intentions and relationship with the claimant
• Any correspondence or documents that explain why the will was made in the way it was

Your lawyer will use this to assess the strength of the claim and your prospects at mediation or court.

Step four: consider early negotiation before filing

If the dispute is straightforward and the other side is reasonable, you might be able to settle before anyone files court documents.

This is faster and cheaper than going through the court process, even if you end up at court-directed mediation.

Have your lawyer write a clear, professional letter setting out your position and proposing a without-prejudice discussion.

Sometimes that's all it takes.

Step five: be realistic about your prospects and your goals

Will disputes are emotional. But they're also legal and commercial decisions.

You need to be clear about:

• What are you actually entitled to under the law? (Not what feels fair, but what a court would likely order.)
• What are the costs and risks of pursuing or defending the claim?
• What do you actually need or want from the estate? Is it a lump sum, an income stream, a share of a particular asset?
• What's the opportunity cost of spending the next eighteen months litigating instead of moving on?

Your lawyer should be giving you this advice from day one. If they're not, find a different lawyer.

Working with Your Lawyer to Prepare for Mediation or Court

Your lawyer isn't just there to argue your case. They're there to help you make decisions.

Here's what you should expect from a good estate litigation lawyer, and what you need to bring to the relationship.

Assessing your prospects

Early in the process, your lawyer should give you a clear, realistic view of your prospects.

Not "you have a case", but "here's what the court would likely consider, here's the range of outcomes, and here's the risk on each side".

If they can't do that, they don't understand your matter well enough.

Good lawyers will tell you when your claim is weak, when you're being unrealistic, and when you should settle. They'll also tell you when you're being undercut and should push harder.

Valuing the claim

Family provision claims aren't just about fairness. They're about money.

Your lawyer should be able to quantify the claim: what's the estate worth, what's the likely range of provision, what are the costs of getting there?

This is the foundation of any settlement negotiation. If you don't know what the claim is worth, you're negotiating blind.

Preparing for mediation with settlement in mind

Mediation isn't an event. It's the culmination of months of preparation.

Your lawyer should be building your case from day one with settlement in mind:

• Gathering the strongest evidence
• Addressing the weakest points head-on
• Preparing clear, realistic settlement proposals
• Anticipating the other side's position and preparing counter-arguments

By the time you walk into mediation, you should know:

• What you're asking for
• What you'll accept
• What you'll do if the other side won't settle
• What it will cost you to go to a hearing if mediation fails

Negotiating strategically, not emotionally

Mediation is hard. You're sitting across from family members you might have known your whole life, arguing about money and fairness in the shadow of someone's death.

Your lawyer's job is to keep the negotiation strategic.

That means knowing when to hold firm, when to compromise, when to take a break, and when to walk away.

It also means helping you separate the emotional injury from the legal claim. You might feel betrayed, hurt, or angry. Those feelings are real. But they're not always relevant to what a court would order.

Good lawyers acknowledge the emotion, but they don't let it drive the decision.

Knowing when to settle and when to fight

The hardest decision in any will dispute is: do we settle now, or do we push to a hearing?

Your lawyer should be able to walk you through the trade-offs:

• What's the likely outcome at court, compared to what's on the table now?
• What's the cost and time difference?
• What's the risk you lose and end up worse off?
• What's the impact on relationships, business operations, and your own wellbeing?

Sometimes the right answer is to settle, even if it's not exactly what you wanted. Sometimes the right answer is to fight.

But you need a lawyer who can give you honest, clear advice and let you make the call.

The Path That Works for You

Contesting a will doesn't have to mean a courtroom battle.

Most disputes settle at mediation. Court sits behind the process, providing structure and consequence, but most parties find a way to resolve the matter without a hearing.

That doesn't mean mediation is soft, easy, or guaranteed to work. It's a high-stakes negotiation that requires clear thinking, realistic expectations, and strategic preparation.

Some disputes need a judge. Serious validity challenges, entrenched conflict, or disputes where the facts are genuinely contested can't always be mediated. When court is the right forum, it's the right forum.

But for most family provision claims, where the will is valid but the distribution is being questioned, mediation is where the work gets done.

Your job is to understand your legal position, quantify what you're entitled to, assess the risks and costs of each pathway, and make a decision that protects your interests without destroying relationships or burning through money unnecessarily.

The right lawyer won't just handle your case. They'll help you see the path clearly, prepare strategically, and make decisions with confidence.

And in a will dispute, clarity is the most powerful tool you have.

Disclaimer: This article provides general information only and does not constitute legal advice. Estate and succession laws vary between Australian states and territories. Time limits apply to most claims and are strictly enforced. If you are involved in or considering a will dispute, seek advice from a specialist estate litigation lawyer as soon as possible.