If you and your partner died together, whose will decides? NSW, Victoria and Queensland

It is not a pleasant question, and most couples have never been asked it directly. But retiree couples travel together, drive together and are frequently in the same place at the same time, and the scenario is common enough that the law has two separate rules for it.

The two rules point in opposite directions. Most people reason as far as the first one, reach a conclusion, and get the answer wrong.

This article covers New South Wales, Victoria and Queensland. The three are close enough to compare and different enough that the differences matter. If your estate will be administered in South Australia, Western Australia, Tasmania, the ACT or the Northern Territory, the shape of the problem will be familiar but none of the rules below are yours.

Rule one: the younger is presumed to have survived

Where two people die and nobody can establish who died first, each of the three states supplies the same starting answer, in almost the same words. In New South Wales it is section 35 of the Conveyancing Act 1919 (NSW):

"In all cases where two or more persons have died under circumstances rendering it uncertain which of them survived, the deaths shall for all purposes affecting the title to any property be presumed to have taken place in order of seniority, and the younger be deemed to have survived the elder."

Victoria says the same thing at section 184 of the Property Law Act 1958 (Vic), and Queensland at section 65 of the Succession Act 1981 (Qld) — an early sign of a structural difference worth noting, because Queensland keeps both of today's rules in one Act while New South Wales and Victoria split them between a property statute and a wills statute.

Two things about the presumption. It applies only where the order of death is genuinely uncertain — if the order can be established, the presumption is not needed and does not apply. And it operates "for all purposes affecting the title to any property", which is broad.

There are two real differences between the states here. Both Victoria and Queensland qualify the presumption with the words "subject to any order of the Court"; the New South Wales provision carries no such qualifier (Property Law Act 1958 (Vic) s.184, https://www.legislation.vic.gov.au/in-force/acts/property-law-act-1958; Succession Act 1981 (Qld) s.65, https://www.legislation.qld.gov.au/view/whole/html/inforce/current/act-1981-069). And Queensland alone puts a number on it: the younger "shall be deemed to have survived the elder for a period of 1 day". Hold onto that one — it turns out to be deliberate.

Read the presumption alone and the conclusion looks obvious. The elder's estate passes to the younger, then flows out through the younger's will, and everything ends up with the younger partner's beneficiaries.

That is where most people stop. It is also where they go wrong.

Rule two: a beneficiary must outlive you by 30 days

The second rule does something else entirely, and all three states have it. In New South Wales it is section 35 of the Succession Act 2006 (NSW) — a different Act, confusingly the same section number:

"(1) If a disposition of property is made to a person who dies within 30 days after the testator's death, or, if that or another period for survival appears in the will, within the period appearing in the will, the will is to take effect as if the person had died immediately before the testator."

Victoria's is section 39 of the Wills Act 1997 (Vic) and Queensland's is section 33B of the Succession Act 1981 (Qld), both to the same effect on the same 30-day period.

So a gift to someone who dies within 30 days of you does not simply pass through to their estate. Your will operates as though they had died before you. The gift fails and goes wherever your will sends it next.

Note that this rule does not depend on the order of death being uncertain. It catches the couple who die in the same accident, and equally the couple where one dies in hospital eleven days after the other.

Now Queensland's one day makes sense. By fixing the deemed survival at a single day, the Queensland Parliament put the younger partner's survival squarely inside its own 30-day window — so the two provisions cannot come apart. In New South Wales and Victoria the same result follows, but from the arithmetic rather than from a stated figure.

Putting the two together

Run the couple who die in the same event, order unknown.

The presumption deems the younger to have survived the elder. So far, so intuitive.

But because the younger then died within 30 days of the elder, the 30-day rule means the elder's will takes effect as if the younger had died immediately before them. The gift from the elder to the younger fails. The elder's estate goes to the elder's own substitute or residuary beneficiaries. The same analysis applies to the younger's estate, which was never passing to the elder under the presumption anyway.

The practical upshot in all three states is that each estate flows through its own will to its own substitute beneficiaries, rather than one estate cascading into the other and out through a single will.

For a couple with the same children and mirror wills, that difference is often invisible. For a blended family it is enormous — it is the difference between one side of the family inheriting everything and each side inheriting from their own parent. If that describes your situation, our article on mutual wills in blended families is worth reading alongside this one.

Where a failed gift actually goes — the substitution rule

"Into the residue" is the common assumption, and where the failed beneficiary is your spouse it is usually right. But where the beneficiary who fails the 30 days is your own child, all three states redirect the gift rather than letting it lapse.

In New South Wales, section 41 of the Succession Act 2006 provides that the issue of that beneficiary who survive the testator by 30 days "take the original beneficiary's share of the property in place of the original beneficiary as if the original beneficiary had died intestate leaving only issue surviving". Queensland does the same at section 33N of the Succession Act 1981, and Victoria has an equivalent in the Wills Act 1997. In plain terms: a failed gift to your child generally goes to that child's children — your grandchildren — not into the residue.

There is a trap sitting inside the New South Wales version. Section 41(5) provides that "a gift to persons as joint tenants on its own indicates a contrary intention", which switches the substitution off. A will leaving the estate to two children as joint tenants therefore behaves differently from one leaving it to them in equal shares, and most people who chose that wording were not choosing that consequence.

Why your will probably does not solve this

Here is the part people find hardest to believe, and it is the same in all three states.

Most wills contain something like "to my wife, if she survives me". Couples read that and conclude they have dealt with the problem.

They have not. Each Act says so expressly. New South Wales:

"(3) A general requirement or condition that a beneficiary survive the testator does not indicate a contrary intention for the purposes of this section."

Victoria, at section 39(3) of the Wills Act 1997: "A general requirement or condition that a beneficiary survive the testator is not a contrary intention for the purpose of this section." Queensland, at section 33B(3): "A general requirement or condition that a beneficiary survive the testator is not a contrary intention."

Three parliaments, three near-identical sentences, all closing the same door. A will can displace the 30-day rule where a contrary intention appears in it, and it can specify a different survival period — but a plain "if she survives me" is expressly declared not to be that contrary intention. The standard formulation does not switch the rule off. It restates a condition the Act already applies more strictly.

If you want a different outcome — a longer survivorship period, or a different destination for a gift that fails — that has to be drafted deliberately. What that wording should be is a question for your solicitor, and it is worth raising specifically rather than assuming the existing clause covers it.

Worked strategy examples

Margaret, 72, and Frank, 75, New South Wales, second marriage. Margaret has two children from her first marriage; Frank has three from his. Each has a will leaving everything to the other, with their own children as substitutes. Their combined estate is roughly $1.4 million, of which about $900,000 is Margaret's, mostly from the sale of her first home. They are killed in the same accident and the order of death cannot be established. Under section 35 of the Conveyancing Act 1919 (NSW), Margaret — the younger — is presumed to have survived Frank. The intuitive reading is that Frank's estate passes to Margaret and then to Margaret's two children, and Frank's three children receive nothing. That is not what happens. Because Margaret died within 30 days of Frank, section 35 of the Succession Act 2006 (NSW) makes Frank's will operate as if she had died first, so the gift to her fails and Frank's estate goes to his three children. Margaret's estate goes to her two. On these facts the statutory outcome is generally the one a blended-family couple actually wants — but it is the opposite of what the presumption alone suggests, and a couple who had "fixed" the problem with a bespoke clause could easily have displaced it without realising.

Helen, 69, and David, 74, Victoria. They are in the same accident; David dies at the scene and Helen dies in hospital eleven days later. Here the order of death is certain, so the presumption in section 184 of the Property Law Act 1958 (Vic) never engages at all — it only operates where the order is uncertain. The 30-day rule does not care. Helen died within 30 days of David, so under section 39 of the Wills Act 1997 (Vic) David's will takes effect as if she had predeceased him, and his estate passes to his substitutes rather than through her will. During those eleven days Helen's daughter needed to draw on the estate for her mother's care. Victoria is the only one of these three states with an express answer: section 39(4) protects a personal representative who makes a distribution within the 30 days to the testator's spouse, domestic partner or child, provided it is made in good faith and for maintenance, support or education — and section 39(5) requires the amount to be deducted from that person's share, or treated as an administration expense if they do not survive the 30 days. On these facts, raising that provision with the solicitor early is generally rational, because the alternative is a family waiting out a month with the estate frozen.

What does not pass under your will at all

Two significant categories sit outside all of this, and they are usually the largest assets a retiree couple owns.

Jointly held property. Property held as joint tenants passes by survivorship, outside the will. How that interacts with the presumption where a couple die together is a technical question that none of these sections settles, and it is not one to guess at. If the family home is held jointly, ask specifically what happens to it in this scenario — and if you do not know whether you hold as joint tenants or tenants in common, that distinction is the first thing to establish.

Superannuation. Super does not pass under a will unless it is directed to the estate. Binding death benefit nominations and reversionary pensions have their own rules about what happens if the nominated beneficiary does not survive — see binding death benefit nominations and reversionary pensions versus BDBNs. A nomination in favour of a spouse who dies at the same time raises exactly the same question in a different system, with different answers.

What to ask your solicitor

1. If we died in the same event, what happens to each of our estates? Ask for the answer in terms of who actually receives what, not in terms of the rules.
2. Does our current wording displace the 30-day rule, or not? For a standard "if she survives me" clause the answer in all three of these states is no.
3. Should we specify a longer survivorship period, and what would that change?
4. If a gift to one of our children failed, where would it go — to their children, or into the residue? And does the way we have worded a gift to two children affect that?
5. What happens to the house, given how it is held?
6. What do our super nominations do if the nominated beneficiary dies at the same time?
7. If we have a blended family, does the current arrangement produce the result we actually intend in this scenario — or only where one of us clearly outlives the other?

This sits inside the wider work of making a will in retirement. If a gift failing and passing to substitutes is a live concern more generally, what happens when a beneficiary dies before you covers the ordinary case, and testamentary trusts are one structural answer to where a failed gift should land. For the practical aftermath when one partner does survive, see the surviving spouse's immediate financial workflow.

The point

Two rules, pulling in opposite directions, in each of three states.

The first presumes the younger survived. The second then treats a beneficiary who dies within 30 days as having died first — so the gift from the elder to the younger fails anyway, and each estate generally goes to its own substitutes rather than cascading into a single will. Queensland makes the interaction explicit by deeming survival of exactly one day; New South Wales and Victoria arrive at the same place by arithmetic.

And the clause most people rely on to handle all this — "if she survives me" — is expressly declared not to displace the rule in New South Wales, in Victoria and in Queensland alike. That is not a drafting quirk in one state. It is a deliberate and consistent choice by three parliaments, and the reason it exists is that a will which lets an estate cascade on a technicality usually defeats what the couple actually intended.

For couples with mirror wills and the same children, none of this changes the destination. For everyone else, and particularly for blended families, it decides which side of the family inherits. That is worth thirty minutes with a solicitor while you are both around to answer the question.

Sources

• Conveyancing Act 1919 (NSW) — s.35 Presumption of survivorship
• Succession Act 2006 (NSW) — ss.35, 41
• Property Law Act 1958 (Vic) — s.184 Presumption of survivorship
• Wills Act 1997 (Vic) — s.39 Beneficiaries must survive testator by 30 days
• Succession Act 1981 (Qld) — ss.33B, 33N, 65