Parenting Contributions Are Not Token: Mother Wins Appeal After 13 Years of Primary Care Was Valued at Only 2%

In Tiang & Pen [2026] FedCFamC1A 121, Schonell J allowed the mother’s appeal from final de facto property orders. The primary judge had assessed contributions at 98% to the father and only 2% to the mother, despite finding that the mother had been the children’s primary carer throughout their lives and had undertaken the substantial majority of parenting over approximately 13 years. The appeal succeeded because that assessment gave the mother’s parenting contributions only token weight. On re-exercise, the Court assessed contributions at 16.5% to the mother, added an 8.5% adjustment under s 90SM(5), and varied the orders to produce an overall division of 25% to the mother and 75% to the father.

🧩 Facts and Issues

Facts:

The parties met in Country G in 2006. The primary judge found that they lived together in a de facto relationship in New South Wales from March 2018 to November 2021, a period of approximately three years and eight months.

The parties had two children, aged 13 and 12 at the time of hearing. The children had always lived with the mother. The primary judge found that the mother undertook the majority of parenting before, during and after the de facto relationship. Since separation, the father had spent no time with the children and had contributed only by way of assessed child support, which commenced in June 2025.

The father brought all significant assets into the relationship. The mother made no direct or indirect financial contribution to the acquisition, conservation or improvement of those assets. Her contributions were non-financial, primarily as parent and carer.

At trial, the mother sought an equal division of the net asset pool. The father argued she should receive a lump sum of $350,000, representing about 10% of the pool. The primary judge found the net pool was $3,477,870, assessed contributions as 98% to the father and 2% to the mother, then added 8.5% under s 90SM(5). That produced an overall outcome of 10.5% to the mother and 89.5% to the father.

Issues:

1. Did the primary judge fail to give meaningful weight to the mother’s parenting contributions?
2. Was the 2% contribution assessment plainly wrong?
3. Should parenting contributions before and after the de facto cohabitation period be considered?
4. Was the final 10.5% outcome unreasonable or plainly unjust?
5. Should the appeal court remit the matter or re-exercise discretion itself?

⚖️ Applicable Law – Legislation, Regulations, Rules

Family Law Act 1975 (Cth)

• Pt VIIIAB — financial matters relating to de facto relationships.
• s 90SM — alteration of property interests in de facto financial causes.
• s 90SM(4) — assessment of contributions, including financial, non-financial, homemaker and parenting contributions.
• s 90SM(5) — adjustment for future needs and related considerations.

Federal Circuit and Family Court of Australia Act 2021 (Cth)

• s 36(1) — appellate power to affirm, reverse, vary, or make such order as the appeal court thinks fit.

Federal Proceedings (Costs) Act 1981 (Cth)

• s 9 — costs certificate for successful appellant.
• s 6 — costs certificate for respondent where matter is reheard or re-exercised after appeal.

📌 Precedents Relied On

• House v The King — appeal court may intervene where discretion miscarried, including where the result is unreasonable or plainly unjust.
• Norbis v Norbis — property discretion has a generous ambit, but that does not protect plainly wrong outcomes.
• CDJ v VAJ — appellate caution in discretionary appeals; intervention requires identified error or a plainly wrong result.
• Mallett v Mallett — homemaker and parenting contributions must receive substantial, not merely token, recognition.
• Dickons v Dickons — contribution assessment is an instinctive synthesis, not a mathematical exercise.
• Horrigan & Horrigan — contribution assessment requires a holistic evaluation.
• G and G — the Court is not confined to the formal period of the relationship when assessing contributions; it can consider contributions before and after the relationship where relevant.
• Trevi & Trevi (Re-Exercise) — on re-exercise, the appeal court may draw inferences and conclusions from facts found by the primary judge and uncontroversial evidence.
• Chan & Lee — where factual findings are not disturbed, the appeal court may proceed on the primary judge’s findings.
• Boensch v Pascoe — judicial economy may justify not determining remaining grounds where one ground disposes of the appeal.

🧠 Analysis

Issue

Was the primary judge’s assessment of the mother’s parenting contributions at only 2% so plainly wrong that the appeal court should intervene?

Rule

In a property appeal, the appellant must usually identify House v The King error. It is not enough to show that another judge might have reached a different percentage. The outcome must fall outside the generous ambit of reasonable disagreement, or the reasoning must disclose a failure to properly exercise discretion.

Contribution assessment under s 90SM(4) is holistic. The Court must evaluate financial, non-financial, homemaker and parenting contributions over the relevant history. Parenting contributions are not symbolic. They must be given substantial, not token, consideration.

In a de facto property case, the Court is not automatically confined to the narrow cohabitation period if the parties’ contributions and family life extend beyond it. Parenting contributions made before, during and after cohabitation may be relevant to the overall assessment.

Application

1. The primary judge treated overwhelming financial contribution as almost everything

The father’s financial contribution was overwhelming. The primary judge found that he brought all significant assets into the relationship and that the mother made no direct or indirect financial contribution to their acquisition, conservation or improvement.

That was a powerful factor in the father’s favour. But it was not the only factor. The Court still had to evaluate the mother’s parenting contributions in a meaningful way.

The problem was the scale of the discount. A 98/2 contribution assessment effectively treated the mother’s 13 years of primary parenting as almost negligible. Schonell J held that the only adequate explanation for that outcome was that her parenting contributions had been given merely token consideration.

2. The mother’s parenting contributions were long, substantial and largely uncontested

The mother was not merely a short-term partner seeking a share of pre-existing wealth. She was the primary carer of the parties’ two children across their lives.

The children were born in 2012 and 2014. Before cohabitation in Australia, the mother cared for the children in Country G. During the de facto relationship, she undertook almost all parenting tasks apart from some assistance from the father. After separation, she continued to care for the children, while the father had no time with them and only began paying child support in June 2025.

Those findings were not overturned. Once those facts were accepted, a 2% contribution finding was plainly inadequate.

3. The appeal succeeded because the contribution finding was plainly wrong

The mother argued that the primary judge failed to give real weight to her parenting contributions and that the result was manifestly unjust.

Schonell J accepted that argument. The Court did not need to find a precise mathematical error. The problem was the end result: the mother’s substantial parenting contributions over 13 years had been recognised at only 2%.

That was outside the acceptable range. It produced a substantial wrong. Ground 3 succeeded because the contribution assessment was plainly wrong.

4. The father’s argument that the overall 10.5% saved the result failed

The father argued that the Court should not focus only on the 2% contribution figure because the mother ultimately received 10.5% after the 8.5% s 90SM(5) adjustment.

Schonell J rejected that. It was too reductive to ignore how the final result was built. The primary judge used a segmented approach: 2% for contributions, then 8.5% for future needs. If the contribution stage miscarried, the final result was infected.

This is important. A future-needs adjustment does not cure a failure to properly recognise parenting contributions at the contribution stage. Parenting work must be valued as contribution, not merely compensated later as need.

5. The Court re-exercised discretion rather than remitting

Both parties invited the appeal court to re-exercise discretion rather than send the matter back for rehearing. Schonell J accepted that course.

No party sought to adduce further evidence. No factual findings were successfully challenged. The Court therefore relied on the primary judge’s factual findings and applied them correctly.

This avoided further delay and expense.

6. On re-exercise, the mother’s contributions were assessed at 16.5%

On re-exercise, the Court accepted that the father’s financial contributions were very substantial. The wealth was entirely a function of his financial contribution.

But the mother’s non-financial parenting contributions were also substantial and significant. The Court emphasised that contribution assessment must look at the entire relationship history, not merely the formal period of cohabitation.

The mother sought 16.5% by way of contributions. The Court found that figure proper. It then adopted the same 8.5% s 90SM(5) adjustment previously made by the primary judge. That produced an overall division of 25% to the mother and 75% to the father.

7. The practical result was a much larger lump sum

The net asset pool was $3,477,870.

A 25% entitlement gave the mother $869,467.50. She already held property worth $9,541 and had already received $355,635 under the primary judge’s orders. Those amounts were deducted, leaving a balance payable by the father of $504,291.50.

The Court ordered the father to pay that amount within 60 days. If he failed to pay, the relevant property at Lot 1 and Lot 2, B Street, Suburb C, NSW, was to be sold, with the mother paid the lump sum plus interest from the proceeds.

Conclusion

The appeal was allowed.

The primary judge’s orders made on 4 February 2026 were discharged. The appeal court re-exercised discretion and ordered an overall division of 25% to the mother and 75% to the father. The father was ordered to pay the mother $504,291.50 within 60 days, with sale machinery if he failed to pay.

Both parties received costs certificates: the mother under s 9 and the father under s 6 of the Federal Proceedings (Costs) Act 1981 (Cth).

🧠 Take-Home Lesson

This case is a powerful reminder that parenting contributions are real contributions. They cannot be reduced to a token percentage simply because the other party brought in the wealth.

The father’s financial contribution was overwhelming, and that is why he still received 75% of the pool. But the mother’s 13 years of primary care for the children had to be recognised as substantial.

The strategic appeal point was not “the mother should have received more because she needed it.” The winning point was sharper: the contribution assessment itself was plainly wrong because it treated long-term parenting as almost worthless.

For family law litigants, the case is especially important in short de facto relationships involving children. The formal cohabitation period may be short, but if the parties’ parenting history extends before and after cohabitation, the Court may need to assess contributions across the whole parenting reality, not just the dates under one roof.