When you plan who should receive your Superannuation after you die, the single most important choice you make in a self-managed super fund (SMSF) may be whether your death benefit nomination is binding or non-binding. The two look similar on paper — both name who you want to receive your benefit — but they carry very different legal weight, and they can lead to completely different outcomes for your family. Understanding the distinction is the key to making sure your wishes are actually followed ATO death benefits.

What a nomination is

A death benefit nomination is a written instruction from a member telling the fund's Trustee who they would like to receive their super death benefit. Super law limits who can receive a benefit directly — broadly, your dependants (such as a spouse or child) or your legal personal representative (your estate) ATO death benefits. Within those limits, a nomination expresses your preference. What changes everything is whether that preference is legally binding on the trustee.

Non-binding nominations: a guide, not a command

A non-binding nomination tells the trustee your wishes, but the trustee is not obliged to follow them. On your death, the trustee retains discretion to decide who, among your eligible beneficiaries, actually receives the benefit and in what form. Your nomination is a Factor the trustee should consider, but it can be overridden. In a large fund, the trustee is an independent organisation exercising that discretion in good faith. In an SMSF, the trustee is usually the surviving members — which is where the risk lies.

Binding nominations: a direction the trustee must follow

A binding death benefit nomination, if it is valid and permitted by your trust deed, legally directs the trustee to pay your benefit as you have specified. The trustee must comply, provided the nomination is valid and the nominated beneficiaries are eligible ATO death benefits. This removes the trustee's discretion and gives you certainty. A binding nomination can be lapsing — requiring renewal periodically, often every three years in the style used by large funds — or non-lapsing, depending on what your deed allows. Because SMSF deeds vary, the form and validity requirements come from your deed, not from a generic rule.

Why the choice changes the outcome

The practical difference is control. With a valid binding nomination, you decide the destination of your super, and no surviving trustee can redirect it. With a non-binding nomination, the surviving trustee decides — and if that trustee is a new spouse, a child from one relationship, or a Business partner, their interests may not align with your wishes. The same words (“pay my super to my children”) can produce opposite results depending on whether they sit in a binding or non-binding document.

A hypothetical example

Hypothetical: Frank has two adult children and, after remarrying, runs his SMSF jointly with his second wife, Lidia. Frank completes a non-binding nomination in favour of his children. When Frank dies, Lidia is the surviving trustee. Because the nomination is non-binding, she has discretion and, as an eligible dependant, decides to pay Frank's $700,000 benefit to herself. Frank's children receive nothing. Had Frank instead made a valid binding nomination — compliant with his deed — directing the benefit to his children (who are eligible beneficiaries), the trustee would have been obliged to pay them. The only thing that changed the outcome was the legal status of the nomination.

Lapsing, non-lapsing and reversionary options

Binding nominations are not all the same, and your deed determines which flavours are available. A lapsing binding nomination expires after a set period — often three years in the style large funds use — and must be renewed; if it lapses, discretion returns to the trustee. A non-lapsing binding nomination stays in force until you change it, which many SMSF members prefer for certainty, but only if the deed permits it. Separately, a reversionary pension automatically continues an income stream to a nominated beneficiary (usually a spouse) on death, operating alongside or instead of a nomination ATO income stream rules. Because these can interact — a reversionary pension and a binding nomination pointing different ways can cause confusion — they should be planned together, not in isolation.

Keep it valid and current

A nomination is only as good as its ongoing validity. Signing and witnessing must follow the deed exactly; a missing witness or an out-of-date form can invalidate it. Life changes — marriage, divorce, a new child, the death of a nominated beneficiary — can make a once-sensible nomination inappropriate or ineffective. Because the consequences land at the worst possible moment, when you are no longer around to fix them, reviewing your nomination every few years and after any major family change is not busywork; it is the difference between a document that works and one that quietly fails.

Getting a binding nomination right

A binding nomination only works if it is valid, so precision matters. It must nominate people who are eligible to receive a death benefit — dependants under super law or your legal personal representative — and it must meet the requirements set out in your trust deed for form, signing and witnessing ATO death benefits. A nomination in favour of someone who is not an eligible beneficiary (for example, a friend or a sibling who is not a dependant) can fail. If your nomination is a lapsing type, letting it expire returns discretion to the trustee, so diarising renewals is essential. And because SMSF deeds differ, a nomination valid in one fund may be ineffective in another.

So which should you use? Neither is universally right. A binding nomination suits people who want certainty — particularly in blended families or where the surviving trustee's interests might diverge from the member's wishes. A non-binding nomination offers flexibility, letting the trustee respond to circumstances at the time, which can be useful in a stable single-family fund where you trust the surviving members' judgement. The worst position is to assume a non-binding nomination guarantees an outcome it cannot. Decide deliberately, make sure any binding nomination complies with your deed and names eligible beneficiaries, and review it whenever your family changes. The form of the nomination is not a technicality — it is what decides whether your wishes are honoured or merely noted.