Wills & Estates
How to Make a Valid Will in Australia
Last updated: June 2026
Who Can Make a Will?
To make a valid will in Australia you must:
- Be 18 years or older (exceptions in some states for married persons under 18)
- Have testamentary capacity — understand what a will is, the nature and extent of your property, and who might reasonably expect to benefit
Requirements for a Valid Will
A will must be:
- In writing (typed or handwritten)
- Signed by you at the end
- Witnessed by two people present at the same time when you sign
Witness Rules
Both witnesses must:
- Be present when you sign
- Sign the will in your presence
- Be 18 or older (most states)
- Not be a beneficiary — if a witness is also a beneficiary, they risk losing their entitlement
What to Include
- Revocation clause (revokes all previous wills)
- Appointment of executor(s)
- Specific gifts to named beneficiaries
- Residuary estate clause (everything not specifically gifted)
- Guardianship of minor children
- Substitute beneficiaries (if a beneficiary dies before you)
Marriage and Divorce
- Marriage revokes a previous will (unless made in contemplation of that marriage)
- Divorce does not revoke the will, but typically revokes gifts to a former spouse and their appointment as executor
Updating Your Will
- New will (recommended): explicitly revoke all previous wills
- Codicil: minor written amendment, same signing/witnessing formality required
Key Points
- Two independent witnesses who are not beneficiaries
- Marriage revokes a previous will — update after major life events
- A new will is cleaner than a codicil for anything more than minor changes
- Tell your executor where the will is stored