Here is a fact that surprises many people, and that has caused a great deal of family heartache: your will does not automatically decide who inherits your superannuation. For most Australians, super is one of their largest assets, yet it sits outside the estate that a will controls. In a self-managed super fund (SMSF), what happens to your benefit on death is governed by the fund's trust deed and the rules of super, not by the instructions in your will ATO death benefits. Understanding this distinction is essential to making sure your savings reach the people you intend.

Super is not an estate asset

When you die, the Assets you own personally — your home, your bank accounts, your shares held in your own name — form your estate and are distributed according to your will. Superannuation is different. You do not “own” your super the way you own your house; it is held in trust by the fund. So your super benefit does not automatically flow into your estate, and your will does not directly dictate where it goes. Instead, the fund's Trustee decides who receives the death benefit, within the boundaries set by law and the trust deed.

The trustee decides — guided by your deed and nomination

On a member's death, the SMSF trustee determines to whom, and in what form, the death benefit is paid, subject to the trust deed and superannuation law ATO death benefits. The law limits who can receive a death benefit directly: broadly, your dependants (such as a spouse or child) or your legal personal representative (your estate). If you have made a valid binding death benefit nomination that your deed permits, the trustee must follow it. If you have not, the trustee generally has discretion to decide among your eligible beneficiaries — which is where outcomes can diverge sharply from what you assumed.

Who controls the fund matters enormously

In an SMSF, the trustee making that decision is usually the surviving members — and after your death, that could be your surviving spouse, a Business partner, or whoever steps into the trustee role under your deed. This is a critical and often overlooked point. If your co-trustee stands to benefit from a discretionary decision, and you have no binding nomination, they may be in a position to direct your super to themselves rather than to the people you had in mind. Who takes control of the fund on your death can therefore matter as much as any document.

When your will does come into play

Your will governs your super only indirectly, and only if the death benefit is paid to your legal personal representative — that is, into your estate. If the trustee pays the benefit to your estate (because you nominated the estate, or the trustee decides to), the money then follows your will along with your other assets. So a will can direct your super, but only via the estate, and only if the benefit is actually channelled there. Relying on your will alone, without arranging for super to reach the estate, leaves the destination of your super to the deed and the trustee.

Reversionary pensions: another route

For couples, a reversionary pension is a common way to give certainty. A pension set up as reversionary automatically continues to a nominated beneficiary — usually a spouse — on the member's death, rather than leaving the outcome to trustee discretion ATO income stream rules. Because the reversion happens automatically, it can provide continuity of income and reduce the scope for dispute. But a reversionary pension has to be established with those terms in place and must fit within the surviving spouse's transfer balance cap, and it interacts with any binding nomination. It is a useful tool, but one that has to be coordinated with the rest of your death benefit plan rather than bolted on.

SMSF nominations are deed-dependent

A further trap: the binding nomination rules that apply to large funds do not automatically apply to SMSFs. Whether you can make a binding nomination, whether it must be renewed every three years or can be non-lapsing, and how it must be signed and witnessed, all depend on your fund's trust deed ATO death benefits. A nomination that would be valid in an industry fund may be ineffective in your SMSF if it does not comply with your deed. This is why an SMSF death benefit plan has to be built around the specific deed, not a generic form.

A hypothetical example

Hypothetical: Robert's will leaves “everything” to his two adult children from his first marriage. He assumes that covers his $800,000 SMSF balance. But Robert has remarried, and his second wife, Susan, is the surviving trustee of their SMSF. Robert made no binding death benefit nomination. On his death, Susan — as trustee — has discretion under the deed and, being a dependant, is entitled to receive the benefit; she pays it to herself. Robert's children receive nothing from the super, despite the will, because the super never entered his estate. A valid binding nomination directing the benefit to his estate, or to his children as eligible beneficiaries, aligned with his deed, would have changed the outcome.

What to do

To make sure your super goes where you want, coordinate three things: your trust deed (confirm what nominations it allows), a valid death benefit nomination that complies with that deed, and control of the fund on your death (who becomes trustee and makes decisions). Consider whether a binding or non-lapsing nomination suits you, whether a reversionary pension to a spouse is appropriate, and whether any benefit should be directed to your estate so your will can apply ATO death benefits. Above all, do not assume your will has super covered. It usually does not — and the gap between what your will says and what your fund actually does is where families end up in dispute. Review your nomination whenever your family circumstances change, such as a marriage, separation or a new child, because a nomination that made sense years ago can send your super somewhere you would no longer choose.