Legal Guide -- 3 February 2026

What is a Power of Attorney?
Types and Requirements in Australia

A power of attorney is one of the most important legal documents you can create. Understand the different types, when you need one, and the witnessing rules in your state.

What is a Power of Attorney?

A power of attorney (POA) is a legal document that authorises another person (called the "attorney") to make decisions and act on your behalf (the "principal"). Despite the name, your attorney does not need to be a lawyer -- they can be any trusted person over 18.

Powers of attorney are used in many situations: when you are travelling overseas, when you are running a business and need someone to sign documents in your absence, or when you want to plan for a time when you may not be able to make your own decisions.

Critical Distinction

You can only create a power of attorney while you have legal capacity (the ability to understand what you are doing). If you wait until after capacity is lost, it is too late. Planning ahead is essential.

Types of Power of Attorney

General Power of Attorney

Authorises your attorney to act on your behalf for specific or general matters. Commonly used for business transactions, property sales, or financial management while you are unavailable.

Can be limited to specific actions or broad
Can have an end date or be ongoing
Ends automatically if you lose capacity

Enduring Power of Attorney

The most important type for personal planning. An enduring POA continues to operate even if you lose mental capacity due to illness, injury, or age. This is its primary purpose and advantage.

Survives loss of capacity
Can start immediately or only on loss of capacity
Stricter witnessing requirements

Specific Power of Attorney

Limited to a single transaction or type of transaction. For example, authorising someone to sign a property settlement on your behalf while you are overseas. Automatically expires once the transaction is complete.

Medical Power of Attorney

Authorises someone to make medical treatment decisions on your behalf if you cannot. The terminology varies by state: "medical treatment decision maker" (VIC), "person responsible" (NSW), or included in the enduring POA (QLD).

State-by-State Requirements

New South Wales

General POA Witness

1 prescribed witness (solicitor, barrister, court registrar, or authorised NSW T&G employee)

Enduring POA Witness

1 prescribed witness. Attorney must also sign an acceptance. Certificate of capacity if principal is elderly or infirm.

Legislation: Powers of Attorney Act 2003

Victoria

General POA Witness

2 witnesses, one of whom must be an authorised witness

Enduring POA Witness

2 witnesses for enduring power of attorney (financial). Medical treatment decision maker has separate requirements.

Legislation: Powers of Attorney Act 2014

Queensland

General POA Witness

1 eligible witness (JP, Commissioner for Declarations, solicitor, notary public)

Enduring POA Witness

1 eligible witness for principal, 1 eligible witness for attorney. Witness must certify capacity.

Legislation: Powers of Attorney Act 1998

Western Australia

General POA Witness

1 witness who is not the attorney or a relative of the attorney

Enduring POA Witness

1 witness who is authorised to witness statutory declarations. Must be independent of the attorney.

Legislation: Guardianship and Administration Act 1990

South Australia

General POA Witness

1 witness

Enduring POA Witness

1 witness who must give a certificate about the principal's understanding. Separate witnessing for attorney.

Legislation: Powers of Attorney and Agency Act 1984

Tasmania, ACT, and NT have their own requirements. Always check your state or territory's current legislation.

When Do You Need a Power of Attorney?

Business Owners

  • Partner acting on your behalf
  • Authorising an employee for banking
  • Property transactions while travelling
  • Company formation or dissolution

Individuals

  • Planning for future incapacity
  • Extended overseas travel
  • Military deployment
  • Managing elderly parent's affairs

Special Situations

  • Selling property when interstate
  • Court proceedings (litigation guardian)
  • Managing investments
  • Insurance claims

Choosing Your Attorney

Your attorney will have significant power over your affairs. Choose someone who is:

Trustworthy

This is the most important quality. Your attorney must always act in your best interests, not their own.

Capable

They need to understand financial and legal matters, or be willing to seek professional advice when needed.

Available

They must be willing and able to take on the responsibility when required. Consider their age, health, and location.

Communicative

They should be willing to keep family members informed and maintain records of decisions made on your behalf.

Prepare Your Power of Attorney

Sign & Go includes a Power of Attorney template with AI customisation. Start with 5 free envelopes -- no credit card required.

This article is general information only and does not constitute legal advice. Powers of attorney have significant legal consequences. Always consult a solicitor before creating one. Last updated February 2026.

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