Who Can Witness a Will?

General information only. This article explains Queensland law about who can witness a will; it is not legal advice. For advice about your situation, speak with a qualified Queensland estate lawyer.

Choosing the right people to witness your will is one of the simplest steps in making a valid will — and one of the easiest to get wrong. In Queensland, the rules about how a will is signed and witnessed come from the Succession Act 1981 (Qld). If those rules are not followed, the will can be challenged, delayed in probate, or in some cases treated as invalid. Just as importantly, choosing the wrong witness can accidentally cancel a gift you intended to leave to someone you love.

This guide sets out who can legally witness a will in Queensland, who should be avoided, what happens if a beneficiary (or their spouse) signs as a witness, and the practical steps that keep your will out of trouble.

Key Takeaways

• A Queensland will must be in writing and signed by the testator (the will-maker) in the presence of two or more witnesses present at the same time (Succession Act 1981 (Qld), s 10).
• A witness must be an adult who can see the testator sign and has the mental capacity to understand what they are witnessing.
• A beneficiary should never be a witness. Under s 11, a gift to an interested witness (or a person claiming under them) is void to that extent unless an exception applies.
• Witnesses do not need to read the will or know its contents — they only confirm they saw the testator sign.
• If a will is not witnessed correctly, the Supreme Court may still recognise it as an informal will under s 18, but this is costly and uncertain — far better to get it right the first time.

The legal foundation: how a will must be signed and witnessed

Section 10 of the Succession Act 1981 (Qld) sets out the formal requirements for executing (signing) a will. A valid will must be:

• In writing — typed or handwritten.
• Signed by the testator, or signed by someone else in the testator’s presence and at their direction (for example, where illness prevents the testator from signing).
• Signed or acknowledged in front of two or more witnesses who are present at the same time. The witnesses must be together with the testator at the moment the testator signs or confirms their signature.
• Attested and signed by at least two of those witnesses in the presence of the testator (though the witnesses do not need to sign in front of each other).

Importantly, under s 10 the witnesses do not need to know that the document is a will, and the signatures do not need to appear at the foot of the document. What matters is that the testator and two witnesses are together, and that the witnesses see the testator sign or acknowledge the signature. You can read more about what makes a will legally recognised, including whether online wills are valid in Queensland and how the courts treat oral and informal wills.

Who can legally witness a will in Queensland?

The Succession Act 1981 does not set out a long list of qualifications for witnesses. In practice, a person can witness a Queensland will if they meet a few common-sense requirements:

• They are an adult of sound mind. While the Act focuses on capacity rather than a strict age line for witnesses, using adult witnesses avoids any argument and is universally accepted best practice.
• They have mental capacity. A witness must understand that they are watching the testator sign a document and are confirming that fact.
• They can physically see the testator sign. A person who is blind cannot properly attest a signature they are unable to see, so they should not act as a witness.
• They are not a beneficiary under the will — and ideally not the spouse or civil partner of a beneficiary (explained in detail below).

Beyond that, witnesses do not need any special status. They do not need to be Australian citizens, they do not need to be professionals, and they do not need to know the testator well. A neighbour, a colleague, or two staff members at a bank or medical clinic can all be perfectly valid witnesses.

Witnessing and formal requirements matter for other estate documents too, including enduring powers of attorney, especially when they are signed under time pressure. Our guide covers last-minute enduring powers of attorney in Queensland.

Who should not witness a will

Some people are legally risky or outright unsuitable as witnesses. The most important category is beneficiaries and their spouses, but there are others to avoid:

• Anyone who receives a gift under the will (a beneficiary). This is the single most common and most damaging mistake.
• The spouse or civil partner of a beneficiary. A gift can be lost if it benefits a person “claiming under” the interested witness.
• The executor? An executor can witness the will, provided they are not also a beneficiary. Acting as executor is not a “gift,” so it does not trigger the interested-witness rule. However, if your executor is also inheriting under the will (which is very common with a spouse or child), they must not witness it.
• Minors and people who lack capacity, for the reasons set out above.

The interested witness rule: how a beneficiary can lose their gift

This is the rule that catches families out most often. Under section 11 of the Succession Act 1981 (Qld), if a person who witnesses the will is also given a gift under it (an “interested witness”), that gift is void to the extent it benefits the witness or a person claiming under them. The rest of the will remains valid — only the gift to the interested witness is affected.

Crucially, there are three exceptions in s 11(3). The gift is not lost if:

• (a) at least two of the people who attested the will are not interested witnesses; or
• (b) all the people who would benefit from voiding the gift consent in writing to the distribution and have the capacity to consent; or
• (c) the court is satisfied the testator knew and approved of the gift and made it freely and voluntarily.

In other words, if two independent (non-benefiting) witnesses also signed, a beneficiary-witness may keep their gift. But relying on an exception means uncertainty, delay, and potentially a trip to court. The safe course is simple: never let a beneficiary or their spouse witness the will. Where a gift is contested on this basis, the dispute can become a full will dispute in Queensland, and the evidence admissible in will contests becomes critical.

Valid vs risky witnesses at a glance

Practical steps for witnessing a will correctly

Getting the signing right is straightforward if you follow a clear process. When you sign your will:

• Gather everyone in the same room at the same time — you and both witnesses together, start to finish.
• Sign the will yourself first, in clear view of both witnesses, using the same pen and in the same sitting.
• Have both witnesses watch you sign, then have each of them sign in your presence. Being “present” means genuine line of sight — each witness must be able to see the testator sign; a witness in another room, or whose view is blocked, has not validly witnessed the will.
• Use two independent adult witnesses who gain nothing under the will and are not married to anyone who does.
• Complete every page. Many wills ask the testator and witnesses to initial each page to prevent later substitution or dispute.
• Date the will on the day it is signed, and store it safely afterwards.

Once signed, keeping the original secure matters just as much as signing it correctly — see our guide on storing your will safely in Queensland. If your circumstances change, such as after a separation, review who benefits and who should witness any new will, as covered in estate planning after divorce or separation.

What happens if a will is not witnessed correctly?

If a will does not meet the s 10 signing and witnessing requirements, it is not automatically thrown out — but it is in a much weaker position. Under section 18 of the Succession Act 1981 (Qld), the Supreme Court has a dispensing power: it can recognise a document as a valid will even if it was not properly executed, provided the court is satisfied the deceased intended that document to be their will.

While s 18 is a valuable safety net, relying on it is expensive, slow, and never guaranteed. It usually means a court application, supporting affidavits, and legal costs paid from the estate — all of which fall on the very family the will was meant to protect. Correct witnessing at signing avoids this entirely.

Special situations

• The testator cannot physically sign. Section 10 allows another person to sign the will on the testator’s behalf, in the testator’s presence and at their direction. This is common where illness or disability prevents signing.
• Couples making wills together. Spouses often make “mirror” or mutual wills, but they should still use independent witnesses — not each other, if either benefits. Learn more about mutual wills in Queensland.
• Gifts to charities. A charity is a beneficiary too, so its representatives should not witness a will that leaves it a gift. See gifts to charities in wills.
• Contested wills. Where witnessing is challenged, courts look closely at how the will was signed. The landmark will dispute cases in Queensland show how often execution problems drive litigation.
• The executor as a witness. An executor who is not a beneficiary can validly witness the will, but it is generally better avoided: if execution or capacity is later disputed, an executor who witnessed the will may be in an awkward position, effectively vouching for a document they must also prove in probate.
• A gift to the drafting solicitor. If a will leaves a significant gift to the solicitor who prepared it, the arrangement attracts heightened scrutiny for undue influence. Best practice is for the testator to obtain independent legal advice before making such a gift.
• A blind or illiterate testator. If the testator cannot read the will, extra care is needed: the will should be read aloud in the presence of the witnesses, and the attestation clause should record that this was done so the will’s validity is not later questioned.

A parallel rule applies to interpreters. Under section 12 of the Succession Act 1981 (Qld), if an interpreter is used to help make the will, a gift to that interpreter can be void to the same extent, subject to similar exceptions. This matters where a testator does not speak English fluently and relies on an interpreter during signing.

Remote and electronic witnessing in Queensland

During the COVID-19 period, Queensland temporarily allowed wills to be witnessed by audio-visual link under emergency arrangements. Those temporary measures were later made permanent: Queensland now allows a will to be witnessed by audio-visual link, but only where at least one witness is a “special witness” (such as an Australian legal practitioner, or a justice of the peace or Commissioner for Declarations approved for the role or working in the law practice that prepared the will) and strict recording and procedural requirements are met. Even so, the safest and most widely accepted approach for a will remains traditional in-person witnessing — the testator and two independent witnesses physically together in the same place at the same time.

If you are considering signing a will remotely, or using an electronic or online will service, take particular care: technical missteps in remote signing are a common source of later disputes and probate delays. Because the specific special-witness and procedural requirements are technical and can change, confirm the current requirements with a Queensland estate lawyer before relying on any remote or electronic method. Our guide on whether online wills are valid in Queensland explains the practical risks in more detail.

Witnessing is not the same as proving capacity

It is worth clearing up a common misunderstanding. A witness confirms one narrow thing: that they saw the testator sign the will. A witness is not certifying that the testator had mental (testamentary) capacity, understood the will, or was free from pressure. Those are separate questions that can be raised after death, sometimes years later.

This is why, for higher-risk situations — an elderly or unwell testator, a significant change to who inherits, or a family where a dispute is likely — solicitors often take additional precautions. These can include a solicitor supervising the signing, a file note recording the testator’s instructions and apparent capacity, and in some cases a medical opinion. While two lay witnesses satisfy the strict signing requirements of s 10, this extra care can be decisive if the will is later challenged and the court must weigh the evidence admissible in a will contest.

Frequently asked questions

How many witnesses does a will need in Queensland?
At least two, and both must be present at the same time when the testator signs or acknowledges their signature (s 10).

Can a family member witness my will?
Yes, as long as that family member (and their spouse) receives nothing under the will. A family member who is a beneficiary should never witness it.

Does a witness need to read my will?
No. Witnesses only confirm they saw you sign. They do not need to know the contents, and under s 10 they need not even know the document is a will.

Can an executor witness the will?
Yes, provided the executor is not also a beneficiary. Being appointed executor is not a gift, so it does not trigger the interested-witness rule.

What if a beneficiary already signed as a witness?
The will generally remains valid, but that beneficiary’s gift may be void under s 11 unless an exception applies (two other independent witnesses signed, all affected people consent in writing, or the court is satisfied the gift was made freely). Seek legal advice promptly.

Can a will be saved if it was witnessed incorrectly?
Possibly, through the court’s dispensing power under s 18 — but this is costly and uncertain, so correct witnessing is always the better path.

Getting it right

Witnessing a will correctly takes only a few minutes, but errors can unravel an estate plan and cost your family time and money. Use two independent adult witnesses, sign together in the same room, and keep beneficiaries (and their spouses) well away from the witness line. If you are unsure whether your will was signed and witnessed correctly — or you are an executor dealing with a will that may have a witnessing problem — a Queensland estate lawyer can review it and advise on the safest way forward.