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How to minimise tax with a will

While Australia does not have an official inheritance tax, that doesn’t mean there won’t be tax bills and administrative delays depending upon how assets are passed on. In some cases, poor estate planning can cost beneficiaries hundreds of thousands of dollars.

The biggest misconception with estate planning is that it is purely about documenting your wishes. Proper estate planning documents wishes while providing options. I leaned on insights from estate planning lawyer Abbey John to understand how wills should be structured.

The cost of avoiding a will

The cost of avoiding a will can be significant. One of the clearest examples involves the family home. Under current tax rules, executors generally have two years from the date of death to sell a principal place of residence and retain a capital gains tax exemption.

John adds that delays are commonly caused by poorly drafted wills or the lack of a will. If you miss the two-year window entirely, there’s little to no chance to save the capital gains exemption.

Without a valid will, families may spend months determining who can act as administrator of the estate, potentially delaying the sale of assets and increasing legal and tax costs. When principal places of residence are held long-term the tax consequences may be significant.

John notes there is an appeal process for an exemption but this involves legal and administration fees that can otherwise be avoided. A successful appeal isn’t guaranteed and requires a strong, valid reason.

I’ve written a deep dive on what to do if you inherit a home here.

Testamentary trusts

Many simple wills merely divide assets without considering how beneficiaries will receive them, including the tax they will pay on sale or how to handle income generated by the asset. One way to divide assets and minimise the tax burden of the estate is a testamentary trust.

Testamentary discretionary trusts are powerful estate planning tools. These trusts are created through a will and only become active after death. Rather than beneficiaries receiving assets directly in their personal name, the inheritance is held within a trust structure.

John describes them as ‘the most tax-advantageous and protective way to receive an inheritance.’

Importantly, testamentary trusts allow distributions to minors to be taxed at adult tax rates rather than punitive minor tax rates. Under standard family trust rules, minors can typically only receive a small amount tax-free each year. Testamentary trusts allow minors to receive the adult tax-free threshold amount.

Figure: Tax rates for residents who are under 18 for 2024–25 without a testamentary trust Source: ATO

With a testimonial trust families may be able to distribute income to children or grandchildren in a tax-effective way to help fund expenses such as education costs.

John charges around $1,100 for a simple will, while a will with a testamentary trust costs roughly $2,000. The trust itself sits dormant until death and does not create ongoing costs while the will-maker is alive. As a rough guide, she says estates of around $250,000 per beneficiary may justify the structure.

Testamentary trusts are not for everyone. They may not make sense for beneficiaries who permanently live overseas and are not Australian tax residents. They do not receive the benefits of structuring for tax minimisation. If the inheritance is relatively small, the ongoing accounting and tax return costs may outweigh potential benefits.

Structuring to get the most out of your super

Superannuation is often one of the most tax-sensitive assets in an estate because it does not automatically form part of your will. Instead, super is governed by the rules of the super fund and your binding death benefit nomination.

Binding death benefit nominations must be made to a valid dependent. If they are not a tax dependent, such as an adult child, they can face tax when inheriting super directly.

In some situations, directing super benefits to the estate instead of directly to adult children may reduce the overall tax burden. Nominating your Legal Personal Representative (LPR) on your binding death nomination form means that adult children will pay tax, minus the 2% Medicare Levy. On large estates, avoiding the Medicare levy is meaningful.

John adds that this strategy only works if the estate plan and binding death benefit nomination are properly aligned.

The biggest mistake with wills

DIY wills can make already emotional situations more complex. DIY or generic online wills are meant as a catch all for the general population and do not take your specific circumstances into account. Broad or general wording leaves the document up to interpretation. Estate planning language must be precise because executors rely entirely on the wording of the document when administrating an estate.

Any ambiguity can increase the risk of disputes and potentially expose executors to personal liabilities.

Three things to review

I finished my conversation with John by asking what are three things that each of us can do to improve the tax effectiveness of their estate plan. She believes the first place to start is a review. The second is assessing whether growing wealth means a simple will is no longer sufficient. The last is ensuring your binding death benefit nomination aligns with your estate plan.

Above all, don’t avoid estate planning because it feels uncomfortable. Dealing with it now ensures that you have the best chances of your wishes being honoured and saves any potential conflict or confusion at an already emotional time.

 

Shani Jayamanne is Director, Investment Specialist, at Morningstar Australia.

 

  •   3 June 2026
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12 Comments
Aussie HIFIRE
June 04, 2026

It would have been good to have had some discussion of the potential changes to the taxation of income from testamentary trusts given the proposed budget from the government?

11
Carmelo
June 04, 2026

I agree with Aussie HIFIRE and Stephen above.
We should revisit the above again once the legisation for the new taxes are legisated.
A review with the financial and legal side of things will be important for us.

6
Jon Kalkman
June 05, 2026

For adults who earn more than $45,000, the new minimum 30% tax on distributions from discretionary trusts makes no difference because they pay at least 30% tax on any additional income, anyway. But beneficiaries who earn less than $45,000 will now pay more tax on a trust distribution than they pay on income earned from employment or bank interest.

However, the minimum tax of 30% on trust distributions is a particular problem for discretionary testamentary trusts. A testamentary trust only comes into effect on the death of the donor to distribute the proceeds of a deceased estate and are designed to make distributions to vulnerable minors and adults who cannot manage their own affairs, under the care of a trustee. No assets can be added to the trust after the initial bequest, so it cannot be used to distribute profits from a business.

Currently, minors who are beneficiaries of a discretionary testamentary trust are taxed as adults, instead of the punitive tax rate on income distributed to children from discretionary family trusts introduced by Treasurer Wayne Swan in 2012. Therefore, children who may be orphaned or disabled can access the $18,200 tax-free threshold and the low tax rate up to $45,000 to assist with education, medical or accommodation expenses. For example, whereas a minor could previously receive $20,000 virtually tax-free from a testamentary trust, but they will now pay 30% or $6,000 as a result of the minimum tax on that income from a deceased estate.

6
Rick D
June 07, 2026

There are other avenues for asset protection and favourable tax treatment for charities and people with disabilities such as Testamentary trusts and Special Disability trusts. But the ‘discretion’ to redirect income to others because they will pay less tax just doesn’t seem right. If all entities and individuals pay the appropriate applicable tax, income tax rates for all could be lowered.

1
hellyripphin
July 14, 2026

The disgusting part is....we have left our entire estate to charity. If we were still breathing when we did that, we would get a tax deduction for doing so. But as soon as your heart stops beating, you pay a HUGE amount of tax. 17% taken from the taxable portion of your hard-earned super. And if you were silly enough to rent out a room in your PPR to try to help the housing crisis...guess what...the ATO will then whack you with CGT and use the value of the PPR when you bought it as the baseline...NOT the value of the PPR when you rented it out !! 

1
Steve
June 04, 2026

'Testamentary trusts are not for everyone. They may not make sense for beneficiaries who permanently live overseas and are not Australian tax residents. They do not receive the benefits of structuring for tax minimisation'

I can see this if the beneficeries are non Aussie tax resident, but if they are then I would have thought a Trust was still the right way to go. Overseas Will has an Aussie testementary trust . Am I missing something?

Jill
June 04, 2026

"Testamentary trusts are not for everyone. They may not make sense for beneficiaries who permanently live overseas and are not Australian tax residents."

I would have liked this comment to be expanded upon, particularly if one wants to keep 'distributions' to adult children equal when one is resident and another non-resident for tax purposes.

ELEANOR MARTIN
June 07, 2026

can this be further explained please

1
Lyn
June 04, 2026

It seems Stephen's comment hits nail on head. Apart from ATO collecting tax from where it assumes there's tax avoidance at death when sometimes isn't, it's solicitors and accountants who benefit from extra, complicated consultations & work if legislation passes with no exemption to testamentary trusts. I don't mean that unkindly about them. It's a modern phenomenon due to relationship breakdown with no-fault divorce and also if de facto when no divorce necessary, that would be large driver of such a trust as the generation passing on the wealth on, which ultimately is taxed anyway and more when beneficiaries' likely increased future tax rate. So the very act of actually preserving wealth to pass it on, keep it safe and usually increasing future tax on it, is to be punished.
If one observes behaviour likley to lead to relationship breakdown, there is no alternative to deal with protecting 'wealth' to be passed on. As found, any such change is costly but essential and many will have no choice even though no tax-dodging involved, the only dodging is of partners who don't want to work but able to or are spendthrifts, neither ever end up keeping a windfall long enough to be eligible to pay future tax but we wealth-gatherers end up having to yet again be instruments of Govt in yet another way to keep that wealth as foundation for our next generation.
I envisage many estates being frittered in future when Govt could have ensured it receives higher tax due on future larger amounts for maybe 50yrs in own example. Why not make it a 30% witholding tax for all so a beneficiary on a lower income ( usually someone 1st job) not unfairly treated which may encourage them to become savers too just because they had nice experience of a small windfall?

Stephen
June 08, 2026

Lyn, my understanding is that even family law disputes are no longer protected by having a testamentary trust. In practice the courts are just treating it like any other asset - I suggest the author push back on that reason from the lawyer quoted.

Lyn
June 09, 2026

Hi Stephen, always open for critical thought! So did I until recent advice, plus research reads: Family Court, Bernard v Bernard 2019 Fam CA421 & complicated Rigby and Kingston(No.4)2021. Is possible to leave 2 or more testamentary discretionary trusts to specific beneficiary/ies with mirrored or 'or not mirrored', trustee to MAYBE protect scenario. If defence cost in future, worth it for slight peace of mind while alive/faith in lawyer to know their stuff. Hope tenacity is inherited. Approached that historically, claimant wouldn't have funds to bring claim at level of legal firm used if defended by same. Won't be around to worry about fees.

To be fair to author, article re minimise tax not specific protection measures but as often is, articles lead to associated matter bringing facts from readers. Will fee thought low re methods/safety of inheritance unless very simple Will. Chose 'mid-tier' as P of A for client of them, plus found a long ago used-by-family small firm sold to them, traced last principal & spoke to, via docs seen as P of A.

 

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