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Consent, Capacity and Decision-Making: 10 Questions Answered
Consent, capacity and decision-making explained in plain English - 10 real questions answered for NDIS participants, families and carers across Australia.
21 May 2026 - 11 min read - by OpenWay editorial
Understanding consent and decision-making in the NDIS can feel overwhelming, especially when legal terms get thrown around without much explanation. The short answer is this: having a disability does not remove your right to make decisions about your own life. Australian law and the NDIS both start from the position that every person has the right to make choices, and that others should support - not replace - that right wherever possible.
Below are 10 of the most common questions asked by NDIS participants, family members and carers on this topic. Each answer is written in plain English and designed to give you a practical foundation, not legal advice.
What consent and capacity actually mean
Q. What does "capacity" mean in the context of disability and the NDIS?
Capacity refers to a person's ability to understand information, weigh it up, and make a decision based on that understanding. Importantly, capacity is not a fixed, all-or-nothing quality. A person may have capacity to decide what to eat for lunch but need more support to understand a complex service agreement. Capacity can also change over time, or vary depending on how information is presented.
Under Australian law, all adults are presumed to have decision-making capacity unless there is clear evidence to the contrary. This presumption matters because it means the burden of proof sits with those who want to override a decision, not with the person making it. Disability alone is never sufficient grounds to assume someone lacks capacity.
The NDIS Quality and Safeguards Commission reinforces this by requiring registered providers to uphold participants' rights to make decisions and to use supported decision-making approaches wherever possible. If you are ever told you "don't have capacity" without a proper assessment, it is worth seeking independent advice.
Q. What is "consent" and when is it needed in disability supports?
Consent means agreeing to something freely, with enough information to understand what you are agreeing to, and without being pressured. In disability services, consent is needed for a wide range of situations: signing a service agreement, agreeing to share personal information, allowing a support worker to assist with personal care, or participating in a behaviour support plan.
Valid consent has three core features. It must be voluntary (no coercion), informed (you have been given enough information in a format you can understand), and specific (you are agreeing to this particular thing, not everything in general). Blanket consent forms that ask you to agree to anything a provider might do are not considered valid consent under Australian privacy and human rights frameworks.
If you are ever unsure whether you have genuinely consented to something, or whether a provider has the right to do something without asking you first, speaking with a disability advocate or your support coordinator is a good starting point.
Supporting someone to make decisions
Q. What is supported decision-making, and how does it work in practice?
Supported decision-making is an approach where a trusted person, or a group of people, helps someone understand their options and express their choices, without taking over the decision. The support person might explain information in simpler language, use visual aids, ask clarifying questions, or simply be present to help the person feel confident.
The key distinction is that the decision-maker remains the person with disability, not the supporter. A supporter's job is to help the person understand and communicate, not to decide on their behalf. This is different from substitute decision-making, where someone else legally makes decisions for another person.
In practice, supported decision-making can be informal (a trusted friend or family member) or more structured (a professional advocate or a formal support network). Many NDIS participants use a combination of both, depending on the type of decision involved. If you are looking for providers who actively build supported decision-making into their practice, browse NDIS-registered providers in your area and filter by support type to compare approaches.
Q. Who can be a decision supporter, and do they have any legal standing?
Anyone the person with disability trusts can act as a decision supporter in an informal sense, including a family member, friend, carer or support worker. There is no formal registration or legal appointment needed to play this role in everyday life. The person with disability chooses who supports them and can change that arrangement at any time.
However, in more formal or high-stakes situations, such as medical decisions, financial transactions or legal matters, specific legal frameworks may come into play. These vary by state and territory. In some cases, a formally appointed guardian or administrator may hold legal authority to make certain decisions on someone's behalf, but this is a last resort, not a first step.
It is worth knowing that being a paid support worker does not automatically make someone a decision supporter. A support worker's role is to assist with tasks, not to direct a participant's life choices. Good providers train their staff to understand this distinction clearly.
Guardianship, administration and the law
Q. What is guardianship, and when does it apply?
Guardianship is a legal arrangement where a tribunal or court appoints a person or organisation to make certain personal or lifestyle decisions on behalf of someone who has been assessed as lacking capacity in a specific area. This might cover decisions about where someone lives, medical treatment, or what services they receive.
Guardianship is meant to be a last resort, used only when less restrictive options, including supported decision-making, have been considered and found insufficient. Each state and territory in Australia has its own guardianship legislation and tribunal. Common examples include the NSW Civil and Administrative Tribunal (NCAT), the Victorian Civil and Administrative Tribunal (VCAT), and the Queensland Civil and Administrative Tribunal (QCAT).
A guardian only has authority over the areas specified in the tribunal's order. They do not take over every aspect of the person's life. Guardianship orders are also reviewed regularly, and the person with disability has the right to participate in those reviews and to challenge decisions they disagree with.
Q. What is a financial administrator, and is it the same as a guardian?
No, they are different roles. A guardian makes personal and lifestyle decisions. A financial administrator (sometimes called a financial manager) makes decisions about a person's money, assets and financial affairs when that person has been found to lack capacity in this area. Both roles are appointed through state and territory tribunals.
The NDIS does not appoint guardians or administrators. Those arrangements sit entirely outside the NDIS. However, if a participant has a guardian or administrator, providers and planners need to be aware of what decisions that person is authorised to make, and what decisions still belong to the participant themselves.
Participants and families who want to understand more about how these arrangements interact with NDIS planning can speak with a support coordinator. The support coordinator workspace on OpenWay is designed to help coordinators find and share provider options, which can be especially useful when a participant's decision-making arrangements are complex.
Rights, advocacy and disputes
Q. Can a provider make decisions for a participant without their consent?
Generally, no. Providers registered with the NDIS are required under the NDIS Practice Standards to respect participants' rights to make decisions about their own lives, including decisions about what supports they receive and how those supports are delivered. Acting without consent, especially in personal care situations, can constitute a serious breach of a participant's rights.
There are very narrow exceptions, such as emergency situations where someone's life is at immediate risk and they are unable to communicate a decision. Outside of genuine emergencies, providers should always seek consent before acting. If a provider is regularly making decisions without asking, or dismissing a participant's choices, this may be a reportable incident under the NDIS Commission's rules.
Participants who feel their rights are being overridden have several options. They can raise a complaint directly with the provider, contact the NDIS Quality and Safeguards Commission, or seek help from a disability advocacy organisation. OpenWay's trust and safety information explains how we approach provider verification, which can help you identify providers who take rights-based practice seriously.
Q. What should I do if I disagree with a decision made about my NDIS plan?
If you disagree with a decision made by the NDIA about your plan, you have the right to ask for an internal review. This is called a request for a review of a reviewable decision. You must make this request within three months of receiving the decision, though the NDIA may accept late requests in some circumstances.
If you are unhappy with the outcome of the internal review, you can apply to the Administrative Appeals Tribunal (AAT) for an independent review. You do not need a lawyer to do this, though getting advice from a disability advocate or legal service can help you prepare your case.
It is important to keep records of all communications with the NDIA, including emails, letters and notes from phone calls. These records can be essential if you need to challenge a decision. If you are working with a support coordinator, they can help you understand your options and connect you with advocacy services. You can find support coordinators listed on OpenWay by visiting the NDIS provider directory and filtering by support type.
Practical questions for families and carers
Q. As a parent or carer, when do I have the right to make decisions for my family member with disability?
This depends on the age of your family member and whether any formal legal arrangements are in place. If your family member is under 18, you hold parental responsibility and can make decisions on their behalf, though it is still good practice to involve them in age-appropriate ways. Once they turn 18, they are legally an adult and their right to make their own decisions is the same as anyone else's, regardless of disability.
As an adult's parent or carer, you do not automatically have the legal right to make decisions for them, even if you are their primary support person. If you believe your family member genuinely lacks capacity in a particular area and needs a formal arrangement, you would need to apply to the relevant state or territory tribunal. In the meantime, you can act as an informal decision supporter, helping them understand their options without overriding their choices.
This can feel difficult, especially when you are worried about someone's safety or wellbeing. Disability advocacy organisations and the Public Advocate offices in each state and territory can provide guidance that is specific to your situation.
Q. How do I make sure a provider respects my family member's right to make their own choices?
Start by asking providers directly about their approach to decision-making during the enquiry stage. Good providers will be able to describe how they involve participants in planning their own supports, how they handle disagreements, and what training their staff receive on rights-based practice.
Look for providers who use person-centred approaches and who can give concrete examples of how they support participants to make choices, even when those choices are unconventional or involve some risk. A provider who is uncomfortable with this conversation may not be the right fit.
When reviewing a service agreement, check that it clearly describes what the service involves, how changes can be made, and how complaints are handled. A well-written service agreement is a sign that a provider takes their obligations seriously. You can explore NDIS providers for individuals and families on OpenWay to compare options and send enquiries before making any commitment.
Frequently asked
Q. Does having a guardian mean a person has no say in their own life?
No. A guardian only has authority over the specific areas listed in the tribunal's order. Outside those areas, the person with disability retains full decision-making rights. Even within the areas covered by guardianship, good practice requires guardians to consult the person and take their wishes into account. A guardianship order is not a blanket removal of rights.
Q. Can a person with an intellectual disability sign their own service agreement?
Yes, in many cases. Having an intellectual disability does not automatically mean a person lacks capacity to sign a contract. The question is whether the person can understand what they are agreeing to, with appropriate support if needed. Providers should present service agreements in plain language or Easy Read formats and allow enough time for the person to ask questions. If there is genuine uncertainty about capacity, seeking advice from an advocate or the relevant state tribunal is the right step.
Q. What is an "advocate" and how is it different from a support coordinator?
A disability advocate represents or supports a person with disability to have their rights upheld and their voice heard. Advocates are independent of service providers and the NDIA, and their job is solely to act in the person's interests. A support coordinator, by contrast, is funded through the NDIS to help a participant implement their plan and find suitable providers. Both roles are valuable, but they serve different purposes. In a dispute or rights-related situation, an independent advocate is often the more appropriate contact.
How OpenWay can help
If you are looking for NDIS providers who take consent, rights and person-centred practice seriously, OpenWay makes it easier to find and compare your options. You can browse providers across Australia, filter by support type and location, and read provider profiles before reaching out.
OpenWay is free for participants, families and support coordinators to use. You can send enquiries directly to providers through the platform, compare multiple options side by side, and share shortlists with family members or your support coordinator.
Whether you are just starting out with the NDIS or reviewing your current supports, the OpenWay platform for individuals and families is designed to give you more information and more control, so you can make choices that genuinely reflect your needs and preferences.
OpenWay is not part of the NDIS, NDIA or NDIS Commission. Final scope, pricing, travel, cancellation rules and non-face-to-face charges must be confirmed in a written service agreement between the participant (or their authorised support person) and the provider.
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This article was written by OpenWay editorial with AI assistance. We review for accuracy + tone but the framing rules of the NDIS apply: nothing here is medical, legal or financial advice. Always check the NDIS Commission and your plan for the latest rules.