Guardianship and Administration Applications in Western Australia - Protecting Someone Who Cannot Make Decisions

By James Stevens, Director and Solicitor, Go To Court Lawyers. Last reviewed 10 April 2026.

When someone you care about cannot make important decisions about their personal care, finances, or legal matters due to mental incapacity, you may need to apply for guardianship or administration orders through Western Australia's State Administrative Tribunal (SAT). These applications protect vulnerable people but involve complex legal processes with strict requirements. The tribunal will make decisions that profoundly impact the person's autonomy and rights, making proper legal representation crucial from day one.

Do You Need a Lawyer?

Yes, you absolutely need experienced legal help for guardianship and administration applications in Western Australia. The State Administrative Tribunal requires detailed evidence of mental incapacity, comprehensive care plans, and strict compliance with procedural requirements. Without proper legal representation, your application faces significant delays or refusal, leaving your loved one unprotected.

A lawyer experienced in SAT proceedings can gather the right medical evidence, prepare compelling submissions, and navigate the tribunal's complex requirements. They understand what evidence SAT members find persuasive and can present your case effectively. More importantly, they ensure the rights of the person subject to the application are properly protected throughout the process.

The stakes are enormous. Failed applications mean continued exposure to financial exploitation, inadequate medical care, or dangerous living situations. Poorly prepared applications can take months longer than necessary, during which your loved one remains at risk. Professional legal help transforms a confusing, overwhelming process into a structured pathway toward protection.

What Happens Next - The SAT Process

The State Administrative Tribunal follows a specific process for guardianship and administration applications. Understanding each step helps you prepare properly and avoid costly delays.

1. Application Filing: Lodge your application with SAT including Form 1 (guardianship) or Form 2 (administration), medical evidence of incapacity, and proposed care plans. Pay the $309 application fee or apply for fee waiver if eligible.
2. Notice Requirements: SAT serves notice on the person subject to the application, their nearest relative, and other interested parties. This typically takes 7-14 days and everyone has rights to participate in proceedings.
3. SAT Investigation: A tribunal member or delegate may visit the person, interview family members, review medical records, and assess living arrangements. This investigation phase typically takes 2-6 weeks.
4. Hearing Preparation: SAT schedules a hearing date, usually 4-8 weeks after application. You must serve all parties with copies of evidence you intend to rely upon at least 7 days before the hearing.
5. The Hearing: SAT conducts a hearing at their Perth offices or by video link. The tribunal member examines all evidence, hears from parties, and may question medical experts or care providers.
6. Decision and Orders: SAT delivers its decision, usually within 2-4 weeks. If granted, orders specify the guardian's or administrator's powers, any limitations, and review dates typically within 1-3 years.
7. Implementation: Once orders are made, the appointed guardian or administrator can begin exercising their authority. SAT provides certified copies of orders for banks, medical providers, and other institutions.

Emergency applications can be fast-tracked when someone faces immediate risk, with SAT able to make urgent interim orders within 24-48 hours. However, emergency applications require compelling evidence of immediate danger and proposed interim arrangements.

The Law in Western Australia

Western Australia's guardianship and administration system operates under the Guardianship and Administration Act 1990 (WA) and State Administrative Tribunal Act 2004 (WA). These Acts establish when SAT can make orders, who can apply, and what powers can be granted.

SAT can only make guardianship orders when a person has a "mental disability" defined as intellectual disability, mental illness, dementia, or acquired brain injury that significantly impairs decision-making capacity. The tribunal must be satisfied the person cannot make reasonable judgments about their personal, lifestyle, or treatment matters.

For administration orders, SAT must find the person cannot make reasonable judgments about financial matters and that making an order would benefit them or protect their interests. The threshold requires clear evidence of incapacity specifically related to financial decision-making.

Guardianship orders can authorize decisions about accommodation, medical treatment, services, and lifestyle matters. Administration orders cover financial decisions, property management, legal proceedings, and contractual matters. SAT can grant limited powers for specific decisions or broader powers for ongoing management.

The Act requires SAT to apply "substituted judgment" principles, meaning guardians and administrators must make decisions the person would have made if they had capacity. Where this cannot be determined, decisions must promote the person's best interests while being least restrictive of their freedom.

Penalties apply for abuse of guardianship or administration powers. Misuse of authority can result in immediate removal, compensation orders, and potential criminal charges under the Criminal Code Act Compilation Act 1913 (WA) for fraud or abuse of vulnerable persons.

Mistakes to Avoid

Insufficient Medical Evidence: Many applications fail because the medical evidence doesn't clearly establish the specific incapacities required by law. SAT needs detailed reports from treating doctors, specialists, or psychologists that directly address decision-making capacity, not just diagnosis. Generic medical certificates or outdated assessments won't satisfy the tribunal's requirements.

Ignoring the Person's Views: Applicants often focus entirely on their own concerns while overlooking what the person subject to the application actually wants. SAT places enormous weight on the person's expressed wishes and will reject applications that don't demonstrate genuine attempts to understand and accommodate their preferences where possible.

Overly Broad Power Requests: Requesting extensive powers without justification raises red flags with SAT. The tribunal prefers limited, specific powers that address identified risks rather than blanket authority over all aspects of someone's life. Explain exactly why each requested power is necessary and how you'll exercise it.

Poor Communication with Family: Family conflicts destroy applications faster than almost anything else. SAT becomes extremely cautious when relatives disagree about care arrangements or question the applicant's motives. Address family concerns early and demonstrate you've made genuine efforts to involve other family members in planning.

Inadequate Care Plans: Vague statements about "ensuring proper care" don't satisfy SAT's requirements. The tribunal wants detailed, practical plans covering accommodation, medical care, social activities, and family contact. Your care plan must show how you'll promote the person's wellbeing while respecting their autonomy wherever possible.

Likely Outcomes and Costs

With proper legal representation, guardianship and administration applications succeed in approximately 85-90% of cases where genuine incapacity exists and appropriate care arrangements are proposed. SAT grants limited orders more readily than extensive powers, often starting with specific authorities and expanding if necessary during reviews.

Timeline expectations vary significantly based on complexity and whether anyone opposes the application. Straightforward, uncontested matters typically resolve within 8-12 weeks from filing to final orders. Complex cases involving family disputes, medical disagreements, or multiple parties can take 4-6 months or longer.

Legal costs for guardianship and administration applications typically range from $3,500-$8,000 for standard matters, depending on complexity and whether hearings are required. Emergency applications cost more due to urgent preparation requirements, typically $2,000-$4,000 additional. Contested matters involving multiple hearing days can cost $10,000-$15,000 or more.

SAT's application fees are $309 per application, with additional costs for urgent applications ($154) and hearing adjournments ($77). Fee waivers are available for applicants receiving government benefits or experiencing financial hardship, but you must apply separately with supporting documentation.

Without legal representation, applications face much higher failure rates, typically 40-50% success compared to professionally prepared matters. Self-represented applicants often struggle with evidence requirements, procedural compliance, and presenting persuasive submissions to SAT members.

The cost of failed applications extends far beyond legal fees. Delays in obtaining necessary authority can result in continued financial exploitation, inadequate medical care, or dangerous living situations that could have been prevented with prompt, professional legal intervention.

How Go To Court Lawyers Can Help

Go To Court Lawyers has helped hundreds of Western Australian families navigate guardianship and administration applications through the State Administrative Tribunal. Our Perth-based lawyers understand SAT's requirements, know what evidence tribunal members find persuasive, and can guide you through this emotionally challenging process with sensitivity and expertise.

With 800+ lawyers across Australia and offices in every state and territory, we offer unmatched experience in guardianship law. Our Western Australian team has appeared before SAT hundreds of times and maintains current knowledge of tribunal practices, recent decisions, and procedural updates that can make or break your application.

We start every case with a fixed-fee fixed-fee consultation where we assess your situation, explain the application process, and provide honest advice about prospects of success. During this consultation, we'll review existing medical evidence, identify gaps that need addressing, and develop a strategic approach tailored to your specific circumstances.

Our comprehensive service includes preparing all application documents, gathering necessary medical evidence, developing detailed care plans, and representing you at SAT hearings. We work closely with medical professionals, social workers, and care providers to build compelling cases that demonstrate both the need for intervention and your suitability as guardian or administrator.

For emergency situations, our 24/7 hotline ensures immediate access to experienced lawyers who can prepare urgent applications and seek interim orders when someone faces immediate risk. We understand that guardianship crises don't wait for business hours and provide the urgent response these situations demand.

Don't navigate this complex process alone while your loved one remains at risk. Call 1300 636 846 now for immediate advice, book your fixed-fee consultation online at gotocourt.com.au/book, or request urgent help through our website. Our 4.5-star rating from 780+ reviews reflects our commitment to achieving the best possible outcomes for families facing these difficult decisions.