Telling the Trustee Where Your Super Goes, Bindingly
Superannuation does not form part of your estate and does not pass under your will. In the absence of a valid binding nomination, the fund's trustee decides who receives the benefit from among the people super law allows. A binding nomination removes that discretion, and its validity requirements are strict enough that a substantial number quietly fail.
- The answer: A valid binding death benefit nomination directs the trustee to pay a named dependant or your legal personal representative, removing their discretion.
- The trap: A lapsing nomination expires after three years and reverts the decision to the trustee. Most people who made one have no idea whether theirs is still in force.
- The recommendation: Check whether yours is lapsing or non-lapsing, and check the date. A nomination that has expired is the same as never having made one.
Where the AI summary above gets this wrong
"Your superannuation will be distributed according to your will when you die."
That's surface-true. Here's what it misses:
- Super is not an estate asset and does not pass under a will — It is held in trust and paid by the trustee. A will governs it only where the benefit is directed to your legal personal representative, which is itself a nomination decision.
- Without a binding nomination the trustee has full discretion — They must pay within the class super law allows, but which of those people receives what is theirs to decide.
- A binding nomination can be invalid without anyone noticing — Witnessing requirements, the class of beneficiary, percentages that do not total 100, and a three-year expiry are all common ways a nomination fails silently.
Take someone with adult children from a first marriage and a current partner — a composite of the situation where this matters most. Without a binding nomination, a trustee who has never met any of them will decide, and the family will find out what was decided after the fact.
01 Why super is not in your will
Superannuation is held in trust by the fund, not owned by you in the way a bank account is. On death it is paid under the trust deed and superannuation law rather than under succession law, and a will has no direct effect on it.
That surprises people who have carefully drafted a will and assume it covers the largest financial asset they hold outside the family home. For many households super is exactly that, and it is being directed by a document they have never read.
A will governs super only where the benefit is paid to your legal personal representative. Directing it there is a deliberate choice with consequences: estate assets are reachable by a family provision claim and by creditors of the estate, and the payment waits for probate rather than being made when the trustee is satisfied.
The same is true of an account-based pension, with one addition: a reversionary nomination on the pension can direct it to continue to a spouse automatically, which is a different mechanism from a death benefit nomination.
02 What makes a nomination binding, and valid
A binding nomination must name only people super law permits — a spouse, a child of any age, a financial dependant, someone in an interdependency relationship, or your legal personal representative. Naming anyone else invalidates that portion.
It must be in writing, signed and dated by you in the presence of two witnesses who are over 18 and not named as beneficiaries, and the witnesses must sign a declaration. Those requirements are where most failures happen, and the fund usually will not tell you a nomination is defective until it is being relied on.
The percentages must total 100. Nominations totalling 99 or 101 because of rounding across four beneficiaries are common and are invalid.
And it must still be in force. A lapsing nomination expires three years after it was signed, confirmed or amended, and the fund's reminder often goes to an address that is no longer current.
03 Lapsing against non-lapsing
A lapsing nomination expires after three years unless renewed. The three-year cycle is intended as a prompt to review, and in practice it is a mechanism that returns discretion to the trustee at a random point.
A non-lapsing nomination stays in force until you change it. Not every fund offers them, and where offered they sometimes require trustee consent, but for anyone whose intended beneficiaries are stable they remove the expiry problem entirely.
The trade-off is that a non-lapsing nomination made at 45 is still directing your super at 70, naming a former partner and no later children. The expiry that makes lapsing nominations annoying is also what forces the review.
The practical answer for most people is a non-lapsing nomination plus a calendar reminder to review it after any significant life event — a marriage, a separation, a birth, a death.
Shows: when a lapsing nomination expires, and how much of the period between now and a planning horizon would be spent with the trustee holding discretion if it is not renewed. Ignores: whether the nomination is valid in other respects, the fund's own renewal reminders, and any reversionary nomination on a pension account.
04 What the trustee does without one
The trustee must identify the people eligible under super law and decide how to divide the benefit between them, having regard to the deceased's circumstances. They are not bound by a will, a non-binding nomination, or the family's view.
A non-binding nomination is a statement of your wishes that the trustee must consider and may depart from. In practice they usually follow it where nobody objects, and the objections are what makes the difference.
The decision can be challenged, first through the fund's internal process and then to the Australian Financial Complaints Authority. That process takes many months, during which the benefit is not paid to anyone.
Blended families are where this goes worst. A current partner and adult children from a previous relationship are both eligible, their interests are opposed, and a trustee dividing the benefit between them satisfies nobody — which is the argument for making the decision yourself while you can.
05 What to actually do
Find out what nomination you currently have. The fund can tell you in a phone call, and a large share of people discover they have none, an expired one, or one naming someone they have not spoken to in a decade.
Decide whether the benefit should go to individuals or to your estate. That decision is driven by who your tax dependants are, which is set out in the dependants reference, and by whether anyone you want to benefit is outside the super law class.
Then make it binding and non-lapsing where the fund allows, get the witnessing right, and check the percentages total 100. Those three mechanical things are the whole of the execution risk.
And review it when something changes rather than on a schedule. The nomination that causes harm is almost always the one that was correct when it was made.
The number of nominations that turn out to be expired or defectively witnessed is the part of this that surprises people. The document exists, everyone believes it is doing something, and it is not. A phone call to the fund settles it in ten minutes, and it is the highest-value ten minutes in estate planning.
FAQ
Should I make a binding death benefit nomination so my super goes where I want it to?
If you have a clear intention, yes. Without a valid binding nomination the trustee decides who receives the benefit from among the people super law allows, and they are not bound by your will.
What is the difference between a lapsing and a non-lapsing binding death benefit nomination?
A lapsing nomination expires three years after it was signed, confirmed or amended, returning discretion to the trustee. A non-lapsing one stays in force until you change it, where the fund offers them.
Does my superannuation automatically form part of my will?
No. Super is held in trust and paid under superannuation law rather than succession law. A will governs it only where the benefit is directed to your legal personal representative.
How does a binding nomination become invalid?
By naming someone outside the class super law permits, by defective witnessing, by percentages that do not total 100, or by expiring where it is a lapsing nomination. Funds generally do not tell you until it is being relied on.
Sources
Regulator references
- ATO — Death benefit payments from super · Australian Taxation Office · 2026Death benefit payments from super: who is a dependant, and how the benefit is taxed.Last verified: 2026-09-07
- ATO — Super for individuals and families · Australian Taxation Office · 2026How super accounts are taxed and reported.Last verified: 2026-09-07
- Federal Register of Legislation · Federal Register of Legislation · 2026The consolidated Commonwealth law behind the rules described here.Last verified: 2026-09-07
Calculator unit tests · the assertions this page's worked example is checked against, and their last result
Changelog
- 2026-09-07 — initial publish (new format)
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Jordan Reeves
Founder of Talk Through Wealth. A software engineer for over a decade before turning to retirement planning, Jordan built the projection engine after watching family members get fragmented, country-by-country advice that never reconciled. He writes about retirement the way the engine computes it: month-by-month, lifetime-long, and skeptical of any rule of thumb that hasn't been run through the math.