Is an Advance Directive Legally Binding in NZ? What the Law Actually Says

The short answer: an advance directive refusing specific medical treatment is legally binding in New Zealand. An advance care plan expressing general wishes is not. The distinction matters enormously — one forces clinicians to follow your instructions, the other is advisory.

Here's how the law actually works, what each document does, and how to make sure your wishes stick.

Advance Directive vs. Advance Care Plan

These terms get used interchangeably in New Zealand, but they're legally distinct:

Advance directive — a written instruction by a competent person to consent to or refuse specific future medical treatment. Under Right 7(5) of the Code of Health and Disability Services Consumers' Rights (the Code of Rights), clinicians must follow a valid advance directive once you lose the capacity to make decisions yourself.

Advance care plan — a broader document recording your values, preferences, and wishes about future healthcare. Hospice New Zealand and the Advance Care Planning cooperative promote these widely. They're valuable for guiding your family and medical team, but they're not legally binding — they inform decisions rather than dictating them.

The legal force comes from the Code of Rights, not from the document's title. An advance care plan remains a record of wishes; if you want a specific refusal of treatment considered as an advance directive under Right 7(5), record it clearly as an advance directive and make it available to your clinicians.

What Makes an Advance Directive Valid

For an advance directive to be legally binding under the Code of Rights, it must meet three conditions:

1. You were competent when you made it — you understood the nature of the decision and its consequences at the time you wrote it
2. It's specific enough — it must identify the treatment being refused (or consented to) clearly enough that clinicians can determine whether it applies to the current clinical situation
3. It applies to the circumstances — the directive must cover the actual medical scenario that has arisen, not just a vaguely similar situation

A directive that says "I refuse all treatment" is too broad — clinicians will argue it doesn't apply to the specific intervention they're proposing. A directive that says "I refuse cardiopulmonary resuscitation if I have a terminal diagnosis with a life expectancy of less than six months" is specific enough to be enforced.

What an Advance Directive Cannot Do

There are hard legal limits:

• You cannot request assisted dying in an advance directive. Under the End of Life Choice Act 2019, assisted dying requires the person to be competent at the time of the request. An advance directive written while competent cannot trigger assisted dying after you lose capacity.
• You cannot demand treatment a clinician considers clinically inappropriate. The right under the Code is to refuse treatment, not to compel it.
• Your EPA and advance directive operate separately. A valid advance directive can bind clinicians on a specific refusal under Right 7(5); if it appears to conflict with a welfare attorney's request, ask the treating team and a lawyer to assess whether the directive is valid and applies to the circumstances.

How to Write One That Works

New Zealand has no prescribed statutory form for advance directives. Unlike EPAs, which must use specific PPPR Act forms and be witnessed by an authorised lawyer, qualifying legal executive, or trustee corporation officer, an advance directive has no formal requirements for format, witnessing, or registration.

That said, practical steps make it far more likely to be followed:

1. Be specific about treatments — name the interventions you're refusing (CPR, ventilation, artificial nutrition, blood transfusion) and the circumstances under which you're refusing them
2. Discuss it with your GP — they can note it in your medical records, which is where clinicians will look first in an emergency
3. Give copies to the right people — your EPA attorney, your GP, your next of kin, and any specialist treating you for an ongoing condition
4. Date and sign it — while not legally required, dating demonstrates when you were competent
5. Review it regularly — a directive written five years ago may not reflect your current wishes, and clinicians give more weight to recent documents

The Relationship Between Your EPA and Your Advance Directive

Your EPA for personal care and welfare and your advance directive serve different functions:

• The EPA appoints someone to make decisions on your behalf when you lose capacity. Your attorney makes real-time decisions about care, accommodation, and welfare based on what they believe you would want.
• The advance directive records the decisions you've already made. A valid and applicable directive removes specific choices from your attorney's discretion.

If there's a conflict — your advance directive refuses ventilation but your EPA attorney requests it — the treating team must assess whether the directive is valid and applies to the circumstances. Because the documents operate separately, get prompt clinical and legal advice about the conflict.

Where to Get Help

The Advance Care Planning cooperative (a national programme supported by the Ministry of Health and Hospice New Zealand) offers free planning resources and conversations with trained facilitators. These are excellent for working through your values and preferences.

For the legally binding layer — the specific treatment refusals — you'll want to work through the instructions in a structured framework. Our New Zealand End-of-Life Planning Guide covers both the advance care plan and the advance directive, showing you how to write instructions that clinicians are legally required to follow rather than advisory wishes they can interpret as they see fit.

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