Capacity Assessment Power of Attorney Australia

Your parent's GP says they "seem fine." Your sister says they repeated the same story four times at lunch. The solicitor drafting the EPOA is asking whether your parent has capacity. Who's right, and how do you know for certain?

Capacity assessment for a power of attorney isn't a simple pass/fail medical test. It's a legal concept with specific criteria, and getting it documented correctly protects the EPOA from challenge for decades.

The Legal Test for Capacity

Australian law uses a functional test for decision-making capacity. Your parent doesn't need to be in perfect cognitive health. They need to meet four specific criteria at the exact moment they sign the EPOA:

Understand: They must comprehend what an enduring power of attorney is, what powers it grants to the attorney, and what happens when the attorney starts exercising those powers.

Retain: They must hold that information long enough to make and communicate the decision. Forgetting the conversation later doesn't by itself invalidate the assessment.

Weigh: They must be able to consider the benefits, risks, and alternatives. Why are they choosing this particular person as attorney? What could go wrong? What's the alternative if they don't sign?

Communicate: They must express their decision clearly enough for others to understand it. This doesn't require perfect speech — writing, gestures, or communication aids all count.

This test is decision-specific. Your parent might lack the capacity to manage complex share portfolios while still having the capacity to understand and execute an EPOA. And capacity can fluctuate — stress, medication changes, illness, and time of day all affect cognitive function.

Who Can Assess Capacity

The treating GP is the most common starting point. If capacity is borderline or likely to be contested, the research recommends a formal assessment and a detailed report addressing the legal test rather than relying on a brief clinical impression.

A geriatrician or neuropsychologist is appropriate when capacity is borderline or likely to be contested. If there's a formal dementia diagnosis, if family members disagree about the parent's capability, or if the estate is large enough to attract future challenges, a specialist assessment creates a more robust evidentiary record.

A psychiatrist may be necessary when the capacity question involves mental illness rather than cognitive decline — for example, when a parent with severe depression or psychosis is making decisions about their financial future.

The assessor should understand that they're evaluating capacity for a specific legal act (executing an EPOA), not general cognitive function. A brief cognitive screen or one-line statement of wellness is insufficient — the assessment must address the four functional criteria above.

What a Useful Assessment Report Looks Like

A one-line letter from the GP saying "Mrs Smith has capacity" is almost useless in a future challenge. The report should document the date and time of the assessment, the specific decision being assessed (executing an EPOA granting financial and/or personal powers), the clinician's observations of the person's ability to understand, retain, weigh, and communicate, any cognitive impairment present and its effect on the specific decision, and the clinician's conclusion about whether the person met the legal test at that moment.

Most state tribunals publish medical report templates for guardianship applications. These templates are also excellent frameworks for pre-execution capacity assessments because they address the same legal criteria.

Private specialist assessments typically cost between $800 and $1,500. Standard GP visits are subsidised under Medicare. Given that an EPOA can govern millions of dollars in assets for years, the cost of a thorough assessment is negligible compared to the cost of having the document invalidated later.

When to Get the Assessment

Get it done before the signing session, not after. The assessment should address capacity at the time of execution, not simply rely on a much older assessment — particularly if the parent has a progressive condition.

Some solicitors arrange for the capacity assessment and EPOA signing to happen on the same day, sometimes in the same appointment. The assessing clinician observes the signing session and documents their observations in real time.

If Capacity Is Borderline

Borderline capacity doesn't mean you should rush to sign before it's "too late." It means you should take extra precautions. Get the specialist assessment. Have the solicitor conduct a more detailed explanation session. Consider whether your parent might have better capacity at a particular time of day — many people with early dementia are sharper in the morning.

If the assessment concludes that capacity is absent, do not attempt to have the EPOA signed. The next step is a tribunal application for guardianship and administration — a slower path, but the only legitimate one.

The Enduring Power of Attorney and Guardianship toolkit includes a capacity assessment preparation checklist and state-specific clinician report templates — so the assessment addresses the right legal criteria for your jurisdiction.

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