Written by: Richele Nelsen
When you’re considering challenging a will because you’ve been inadequately provided for or believe there are grounds to dispute its validity, one of your first practical concerns is likely: how much will this cost? Understanding the costs involved in contesting a will—from legal fees and court expenses to expert witness charges—helps you make informed decisions about whether pursuing a claim makes financial sense given the likely outcomes.
The cost to contest a will varies significantly based on case complexity, whether matters settle or proceed to trial, and, importantly, who ultimately pays these costs once your case concludes. This comprehensive March 2026 guide breaks down all expenses involved in will disputes and explains the factors that influence the overall cost of challenging a will in Australia.
Understanding the costs involved in will disputes
Will contests involve various categories of expenses that accumulate as your case progresses through different stages from initial assessment to final resolution.
Legal fees
Your lawyer’s professional fees typically represent the largest component of costs when contesting a will. These fees cover legal advice and strategy, document preparation and filing, correspondence with executors and other parties, negotiation and settlement discussions, court appearances, and trial preparation and representation if necessary.
Fee structures vary among law firms:
| Hourly rates | Some lawyers charge by the hour, with rates typically ranging from $300 to $600+ per hour, depending on the lawyer’s experience and the firm’s location. Complex matters requiring senior lawyer involvement naturally attract higher hourly rates. |
| Fixed fees | For straightforward matters with predictable scope, some firms offer fixed-fee arrangements covering specific services or stages of the process. |
| No Win No Fee | Many will dispute lawyers, including GMP Law, work on conditional fee arrangements where you pay no fees if your claim is unsuccessful. |
Court and filing fees
Courts charge fees for filing applications, which vary by jurisdiction and application type. In NSW Supreme Court, for example, filing a family provision application costs several hundred dollars. While these fees are modest compared to legal fees, they still form part of the total cost of contesting a will.
Expert witness costs
Most will contests require independent expert evidence to support your case. Common experts and their typical fees include:
| Type | Average cost range* | Purpose |
|---|---|---|
| Medical experts | $2,500 to $10,000 | Doctors, psychiatrists, or psychologists who assess your health conditions, psychological impacts of estrangement, or the deceased’s testamentary capacity when the will was made. |
| Financial experts | $3,000 to $10,000 | Accountants or financial planners who analyse your financial circumstances, assess estate values, or calculate appropriate provision amounts. |
| Vocational experts | $2,000 to $5,000 | Specialists who evaluate your earning capacity, particularly if you’re claiming that health issues or circumstances reduce your ability to earn income. |
| Property valuers | $800 to $3,000 | Professionals who assess real estate or other property values when disputes exist about estate values. |
*These are estimates only, and actual costs may fall outside of this range.
Note:
- Costs increase if experts are required to give oral evidence in court
- Some matters require multiple reports, particularly in contested wills involving capacity or estrangement.
Other disbursements
Additional expenses include:
- Obtaining copies of medical records or financial documents
- Engaging private investigators if fraud or undue influence is alleged
- Obtaining probate searches and other court documents
- Photocopying, courier services, and administrative costs
- Travel expenses for attending mediations or court hearings if held away from your location
While individually modest, these disbursements accumulate over the course of litigation.
Key takeaway
While focusing on costs is natural, don’t let fear of expenses prevent you from seeking legal advice. GMP Law offers free initial consultations, and our family provision claims are run on a No Win, No Fee basis. This means you can explore your options and understand whether you have a viable claim without taking on unnecessary financial risk.
This funding model extends beyond professional fees to include disbursements, an important point of difference from many other firms. In addition, fees are tailored to reflect the outcome achieved, including in the unlikely event of a poor result, ensuring your financial exposure is managed as fairly and transparently as possible.
Factors affecting the cost to contest a will
Several variables influence how much contesting a will ultimately costs, with some under your control and others dependent on how the case unfolds. This include complexity of your case, estate size, your location, and whether the case settles or goes to trial.
1. Complexity of your case
Straightforward family provision claims by clearly eligible persons with simple financial circumstances generally cost less. More complex disputes—such as those involving multiple claimants, contested eligibility, complex estate structures, or challenges to will validity—tend to be more expensive and may require expert evidence.
Matters involving extensive financial disclosure, asset tracing, or investigations into alleged fraud or undue influence usually incur higher costs due to the additional work involved.
2. Settlement vs. trial
| Early resolution (around three to six months) | Matters that resolve through early negotiation or informal settlement discussions may involve lower overall costs. Depending on the work required, costs are often significantly less than fully litigated matters. |
| Resolution at mediation (around six to 12 months) | Claims that progress to formal mediation usually involve higher costs due to pleadings, evidence preparation, and mediation-related work. Costs can increase further where expert evidence is required. |
| Proceeding to trial (12 to 24 months) | Matters that do not settle and proceed to trial are typically the most expensive. These cases require extensive preparation, expert reports, written submissions, and court appearances, which can substantially increase legal costs. Claims involving public trustees or other institutional administrators may be more likely to proceed to this stage where settlement authority is constrained or policy-driven. |
Most family provision claims resolve before trial, which often helps limit costs and time for many claimants.
3. Estate size
The size of the estate influences costs in several ways. Larger estates often attract more robust opposition from executors and beneficiaries, increasing the legal work required. Courts may also permit proportionally higher legal costs where the estate value is substantial.
Conversely, smaller estates can be subject to cost controls. In some jurisdictions, estates below certain thresholds (for example, around $500,000) may face court-imposed limits on recoverable legal costs. This can influence case strategy, negotiation, and settlement decisions.
4. Your location
While estate disputes are usually heard in the Supreme Court of each state, this does not automatically mean higher costs for regional clients. Many matters are managed remotely, and overall costs are more closely linked to the complexity of the case and how it is conducted rather than where you live.
5. Opposing party conduct
If executors or beneficiaries defend unreasonably, refuse to provide necessary information, or take unnecessarily adversarial approaches, costs escalate due to additional applications and correspondence required. Conversely, reasonable opponents willing to negotiate in good faith help contain costs through more efficient resolution.
6. Your own conduct
Your cooperation with your lawyer, promptness in providing requested information, and reasonableness in settlement negotiations significantly impact costs. Clients who change lawyers mid-process, fail to provide instructions when needed, or reject reasonable settlement offers often face higher costs as cases become protracted.
Get a free claim check
Who pays legal costs when contesting a will?
One of the most important—and often misunderstood—aspects of will contest costs is determining who ultimately pays them. The answer depends on the circumstances of the case and the court’s discretion.
General principles of cost orders
In most Australian civil litigation, costs usually follow the event, meaning the unsuccessful party may be ordered to pay the successful party’s costs. However, in will contests—particularly family provision claims—courts often approach costs more flexibly.
Under section 99 of the Succession Act 2006 (NSW), and similar provisions and principles applied in other states, courts have broad discretion when making cost orders. In exercising that discretion, courts commonly consider factors such as:
- Whether the claim was reasonable (even if unsuccessful)
- The conduct of the parties
- Whether reasonable settlement offers were made or rejected
- The size of the estate relative to the costs incurred
- Whether the matter involved complex or novel legal issues.
Read more: Contesting a will in NSW and Contesting a will in QLD
When your legal costs may be paid from the estate
In many successful family provision claims, courts order that some or all of your reasonable legal costs be paid from the estate before it is distributed. This reflects the view that the claim was properly brought to ensure adequate provision was made.
However, full cost recovery is not guaranteed. Courts may reduce the amount paid from the estate where, for example:
- Reasonable settlement offers were rejected
- The proceedings were unnecessarily prolonged
- Aspects of the claim went beyond what was reasonable
When you may have to pay your own costs
Courts may order you to pay your own legal costs, even if you are successful, where:
- The claim succeeded only to a limited extent
- Your conduct increased costs unnecessarily
- Reasonable settlement offers were refused
If a claim is unsuccessful, the court may still allow each party to bear their own costs where the claim was reasonably brought and pursued in good faith.
When you may be ordered to pay the estate’s costs
A court may order you to pay some or all of the estate’s legal costs where:
- The claim was frivolous, vexatious, or had no reasonable prospects
- There was improper conduct during the proceedings
- Settlement offers were unreasonably refused, and the final outcome was less favourable
These orders are less common but remain a real risk in weak or poorly conducted cases.
When the estate may pay both sides’ costs
In some cases, courts order the estate to pay the reasonable legal costs of all parties, particularly where:
- There was genuine uncertainty about the deceased’s obligations
- The will raised legitimate legal questions
- All parties acted reasonably and proportionately
This commonly occurs in cases requiring court guidance rather than adversarial resolution.
Cost orders in will disputes are never automatic. Even a successful claim may result in only partial cost recovery, while an unsuccessful but reasonable claim may avoid adverse cost orders. Because courts exercise broad discretion, understanding potential cost outcomes before starting proceedings is essential.
Average costs of contesting a will
Every will dispute is different. Legal costs depend on the size and complexity of the estate, the issues in dispute, how cooperative the parties are, and whether the matter resolves early or proceeds to court. However, understanding typical cost ranges can help you make informed decisions about pursuing a claim.
Simple family provision claims
Straightforward claims by clearly eligible applicants (such as spouses or dependent children) seeking modest additional provision from a reasonably sized estate, where matters resolve relatively quickly, can typically cost:
- Early settlement or negotiation (three to six months): $5,000 to $20,000
- Settlement following mediation (six to nine months): $20,000 to $40,000
These estimates assume cooperative executors, clear eligibility, straightforward financial circumstances, limited expert evidence, and no significant disputes about estate values.
Moderate complexity claims
Some claims have contested issues, such as:
- Disputes about dependency or financial need
- Uncooperative executors requiring additional applications
- Multiple competing claimants
- Estates with moderately complex asset structures
These claims generally cost:
- Settlement before trial (nine to 15 months): $40,000 to $80,000
- Proceeding to a contested hearing: $60,000 to $80,000
Costs increase where there are interlocutory disputes, valuation issues, or competing claims on the estate.
Complex and contested cases
Highly contested matters may include:
- Challenges to the validity of a will (for example, lack of capacity or undue influence)
- Multiple parties with competing interests
- Complex estate or trust structures
- Extensive expert evidence
- Appeals
These matters generally cost:
- Through trial and judgment: $80,000 to $150,000
- Including appeals or prolonged litigation: $150,000+
These cost levels are more commonly seen in larger estates where significant assets are at stake.
Important considerations about legal costs
| 1. Most will disputes settle | The majority of family provision claims resolve through negotiation or mediation rather than a final court hearing, which significantly reduces costs. |
| 2. Costs are not automatically paid from the estate | Courts have broad discretion in relation to costs. While successful applicants are often awarded costs from the estate, this is not guaranteed and usually covers only a portion of solicitor-client costs. |
| 3. Unsuccessful claims carry risk | An unsuccessful claimant may be ordered to pay their own legal costs and, in some cases, some or all of the estate’s costs. |
| 4. Proportionality matters | Courts expect legal costs to be proportionate to the size and value of the estate, particularly in smaller estates. |
Legal costs for contesting a will in Australia can range from relatively modest amounts for early settlements to significant sums in complex, contested litigation. Because costs and outcomes vary widely, obtaining early legal advice is essential to assess both the merits of a claim and the financial risks involved.
Find out how much you can claim today
Strategies to minimise legal costs
While will contests inevitably involve expenses, strategic approaches can help contain costs without compromising your case.
1. Act promptly
Delaying action increases costs by requiring rushed preparation and emergency applications. Early consultation allows systematic, efficient case preparation.
Learn more: How long after a death can a will be contested?
2. Be organised and responsive
Providing requested documents promptly, responding to your lawyer’s requests for instructions quickly, keeping detailed records of financial information, and avoiding unnecessary communications helps your lawyer work efficiently and reduces billable time.
3. Consider settlement seriously
Turning down a reasonable settlement to chase a slightly higher result at trial often ends up costing more than it gains. If your lawyer recommends accepting an offer, consider that advice carefully. Trial costs can consume much of any additional amount you might win.
4. Choose appropriate representation
Selecting an estate dispute lawyer with proven experience in your state helps ensure your claim is managed in accordance with the specific laws, procedures, and court approaches that apply.
5. Understand fee arrangements
Clarify your lawyer’s fee structure upfront. Ask for estimates of likely total costs in different scenarios, understand what disbursements you’re responsible for, and confirm whether costs are paid from recovery or separately. This prevents surprises and allows informed decision-making.
6. Limit expert evidence
Only engage experts when necessary to prove your case. While your lawyer will advise on essential experts, resist the temptation to over-prepare with unnecessary additional opinions that increase costs without strengthening your position.
The cheapest approach isn't always the best approach. Trying to save money by using inexperienced lawyers, avoiding necessary experts, or handling matters yourself often backfires, resulting in unsuccessful claims that cost you both legal fees and lost inheritance. Smart cost management means spending appropriately on what matters while avoiding unnecessary expenses.
