Failure Cases and Official Sources
Estate and family-law mistakes that cost Australians money: 12 failure cases and how to avoid them
The most common and costly mistakes with wills, super nominations, probate, family provision deadlines, powers of attorney and property settlements in Australia, and what to do instead.
The costliest mistakes in Australian estates and separations are rarely exotic. They are a will signed with one witness, a super nomination that lapsed, a separated spouse left as executor, a property claim filed after the 12-month deadline, a house inherited and kept for three years without thinking about capital gains tax, and an attorney who mixed a parent's money with their own. Each one has a predictable cost: a court application, lost tax concessions, a family provision claim or a fight with a fund trustee. This guide lists twelve failure patterns, what each typically costs, and the prevention step. The detailed guides in this section explain each one.
All examples are illustrative composites, not real cases.
The twelve failure cases
| # | Failure | Typical consequence | Prevention |
|---|---|---|---|
| 1 | Will signed with only one witness, or witnesses not present together | Court application under the dispensing power, paid from the estate | Two adult witnesses, present together, not beneficiaries |
| 2 | Beneficiary or their partner witnesses the will | The gift may fail unless saved by the Act's exceptions | Use independent witnesses |
| 3 | No residuary clause in a homemade will | Part of the estate passes on intestacy | Always say who gets "the rest" |
| 4 | Will not updated after separation | Separated spouse inherits and may be executor | New will at separation |
| 5 | Binding nomination lapsed or invalid | Trustee decides; benefit may go to someone you did not intend | Diarise renewal; use non-lapsing if the fund allows |
| 6 | Super paid to an adult child directly when the estate route would save the Medicare levy (or vice versa) | Extra tax, or exposure to estate claims | Decide the route deliberately |
| 7 | Inherited main residence sold more than 2 years after death | Loss of full CGT exemption | Plan the sale or move in; ask the ATO about extensions early |
| 8 | Executor distributes before the family provision period ends | Personal exposure to a claim | Publish notices; wait out the period |
| 9 | Family provision claim made after the deadline | Need to justify the delay; may fail | Get advice within weeks of the death |
| 10 | Property claim made more than 12 months after divorce (2 years for de facto) | Need the court's leave | Diarise the deadline at separation |
| 11 | Informal property agreement never formalised | Either party can still claim later; no super split | Consent orders or a binding financial agreement |
| 12 | Attorney mixes the principal's money with their own | Tribunal review, repayment orders, family conflict | Separate accounts, records, no personal benefit |
The will itself
Most homemade will failures come from three things: formal requirements, unclear gifts and forgotten assets. Formal defects can often be saved under the dispensing power, but only with a court application. Unclear gifts ("my car to my nephew", when there are two nephews and three cars) cause disputes that are paid for out of the estate. Forgotten assets mean intestacy for part of the estate. Read homemade will failure cases.
Super nominations
Super is often the largest asset after the home, and it does not pass under the will unless it is paid to the estate. A lapsed binding nomination (many funds use a 3-year lapsing rule) leaves the trustee to decide among dependants and the estate. A nomination in favour of someone who is not a dependant at death, such as an adult stepchild who was never financially dependent, can be invalid. Read what happens when a binding nomination lapses.
Deadlines
Two families of deadline cause the most damage:
- Family provision: 12 months from death in NSW; 6 months from the grant in Victoria and WA; notice within 6 months and proceedings within 9 months of death in Queensland. See family provision time limits.
- Family law property: 12 months after a divorce takes effect, 2 years after a de facto relationship ends. See missed family-law time limits.
Both can sometimes be extended, but late applicants carry the burden of explaining the delay, and their legal costs rise.
Powers of attorney and elder financial abuse
An enduring power of attorney is a powerful document. Misuse is often gradual: "loans" to the attorney, paying the attorney's bills, selling the house without regard to the principal's wishes. Tribunals and courts can order compensation, but recovering money is slow and family relationships rarely recover. Read misuse of powers of attorney and elder abuse.
Separation without formal orders
A handshake agreement feels cheaper, but it does not stop either party applying to court later (subject to time limits), does not split super, and does not give stamp duty relief for transferring property. Consent orders cost a filing fee and some legal time. See divorce and consent orders.
Worked example: one family, three mistakes (illustrative)
Greg separated from his wife Helen in 2022 but never divorced. In 2023 he moved in with his partner Leah. He died in NSW in 2026, aged 58.
- His 2009 will left everything to Helen. Separation did not revoke it, so Helen is the executor and sole beneficiary of his $650,000 estate.
- His super ($380,000) had a binding nomination to Helen that lapsed in 2021. The trustee must choose between Helen (still a spouse), Leah (a de facto partner for 3 years) and his estate.
- Leah is eligible to make a family provision claim within 12 months of his death, and can ask the court to treat the super, if paid to Helen, as notional estate.
Likely outcome: a family provision claim, settled at mediation with costs on both sides, plus a fund complaint process. A new will and nomination at separation would have cost a fraction of the legal costs.
How to check your own situation in 30 minutes
- Find your will and read who is executor and beneficiary.
- Log in to each super fund and check the nomination type and expiry.
- List your assets and how each is held.
- Check your powers of attorney exist and name the right people.
- If separated, diarise the property deadline.
The documents checklist does this in one place. If anything is wrong, see free legal help or the official sources directory.
FAQ
What is the single most common mistake?
Not updating documents after a relationship change, particularly separation without divorce, which revokes nothing.
Are DIY will kits always a mistake?
No. Simple estates with clear wishes can be handled well with a kit, if the formal rules are followed. Problems arise with blended families, trusts, businesses and assets outside the will.
Can mistakes be fixed after death?
Some can: a court can accept an informal will, rectify a clerical error, or vary the distribution on a family provision claim. All involve applications, delay and costs.
Sources
- Supreme Court of NSW — probate and family provision
- Federal Circuit and Family Court of Australia — time limits and consent orders
- Australian Taxation Office — deceased estates and super death benefits
- Australian Financial Complaints Authority — super death benefit complaints
- Related: overview of costs, checklist
