Healthcare Decision Maker in the Northern Territory: Who Decides When You Can't

The NT's Unified Approach

Most Australian states separate financial powers of attorney from medical guardianship — you need two documents, sometimes three. The Northern Territory took a different approach with the Advance Personal Planning Act 2013, replacing both instruments with the Advance Personal Plan (APP). One document, one signing session, one set of decision-makers who can handle everything from banking to life-support directives.

This sounds simpler. In practice, it creates a problem that catches families off guard: the person you appoint for finances is the same person who makes your medical decisions, unless you deliberately structure the APP to split those roles.

Who Makes Healthcare Decisions by Default

If someone loses decision-making capacity in the NT and has no APP, the Health Care Decision Making Act 2023 establishes a statutory hierarchy for healthcare decisions:

1. Spouse or de facto partner (including same-sex partners)
2. Primary carer
3. Close relative or friend

The highest-ranked available person who is willing and able to act becomes the default healthcare decision-maker. If two people sit at the same level, they are expected to reach agreement — and if they cannot, any of them can apply to NTCAT for a formal appointment.

This hierarchy applies only to healthcare decisions. For financial matters with no APP in place, the family must go to NTCAT for a guardianship or administration order.

The Healthcare vs Financial Split

Because the APP combines everything, families should think carefully about whether one decision-maker should handle both domains:

Arguments for one person: Simpler administration, no coordination issues, faster decisions in emergencies.

Arguments for splitting: Healthcare decisions require empathy and knowledge of the person's values. Financial management requires bookkeeping discipline, investment competence, and resistance to family pressure. These are often different skill sets in different people.

The APP allows you to name different decision-makers for different domains. You can appoint your daughter for healthcare and lifestyle decisions while naming your son for financial and property matters — or vice versa. The key is to be explicit in the plan about which decisions each person controls.

Binding Medical Directives

The APP goes beyond appointing a decision-maker. Section C allows you to make legally binding Advance Consent Decisions about specific medical treatments. These are not suggestions — they have legal effect, and healthcare providers must follow them unless NTCAT orders that they be disregarded.

You can consent to or refuse:

• Specific surgical procedures
• Resuscitation measures
• Palliative care approaches
• Experimental treatments
• Blood transfusions

Section B offers a softer tool: Advance Care Statements that express your values, lifestyle preferences, and general wishes. These are not legally binding but must be considered by decision-makers and healthcare providers.

The distinction matters. A binding directive in Section C overrides your decision-maker's judgment. An Advance Care Statement in Section B guides them but leaves room for interpretation based on circumstances the plan could not have anticipated.

When Healthcare Decisions Get Contested

Healthcare decision-making in the NT can be challenged through NTCAT. Common triggers include:

• Family disagreement about treatment options when multiple people sit at the same level of the statutory hierarchy
• Concerns that an appointed decision-maker is not acting in the person's best interests
• Disputes between a decision-maker's choices and the person's recorded values

NTCAT can override a decision-maker's authority, vary the terms of an APP, or appoint the Public Guardian. Filing a guardianship application is free, but the process requires medical capacity assessments and formal hearings — it takes weeks to months, not days.

Setting Up Healthcare Decision-Making Properly

An APP that clearly separates healthcare and financial authority, names backup decision-makers for both domains, and includes specific binding directives for the medical scenarios that matter most to you eliminates virtually all of the friction described above.

The Northern Territory Power of Attorney Kit walks through the split-APP strategy and includes a goals-of-care worksheet designed to help you articulate binding medical directives without legal jargon.

See more Northern Territory guides →