Safeguarding Family Wealth for Future Generations

For many high‑net‑worth families, the critical issue is no longer simply how wealth is created—but how it is preserved across generations while minimising exposure to external claims, including family law disputes.

A central legal tension arises in this context:

To what extent can trust-held assets—particularly intergenerational wealth—be characterised as “property” of the parties under s 79 of the Family Law Act 1975 (Cth)?

The decision in Caldwell & Caldwell [2025] FedCFamC1F 506 provides a detailed and authoritative restatement of the governing principles.

The Legal Framework: s 79 and the Definition of “Property”

Under s 79, the Court has power to alter interests in “property” of the parties to achieve a just and equitable outcome. However, the threshold question remains:

What constitutes “property” of the parties?

The concept is broad but not unlimited. It includes legal and equitable interests, but does not automatically extend to every asset a party can influence or benefit from.

As confirmed in Caldwell, the analysis is not satisfied merely by identifying:

• some level of control, or

• a capacity to benefit

Instead, the Court must engage in a fact‑specific inquiry into the substance of the trust relationship and the limits on the exercise of any powers.

The Decision in Caldwell & Caldwell

Facts and Structural Context

The parties were married for approximately 30 years. Their personal asset pool—excluding trusts—was already substantial, estimated between $16 million and $22 million.

The dispute focused on three discretionary trusts:

• established by the husband’s father

• forming part of a multi-generational family business structure

• designed to benefit lineal descendants only

• explicitly excluding the wife as a beneficiary

Following his father’s death, the husband became one of several appointors, with the capacity to influence trustee appointment and governance.

The wife argued that:

• the husband’s control and powers were sufficient to characterise the trust assets as property under s 79.

Outcome

The Court rejected that argument and held that:

• the trust assets were not property of the parties, but

• instead constituted a financial resource to be considered in the broader discretionary assessment.

Key Legal Principles from Caldwell

1. Control Is Relevant — But Not Determinative

The Court reaffirmed that control alone does not equate to ownership.

While control and capacity to benefit are relevant factors, they do not automatically convert trust assets into property.

In Caldwell, the husband:

• was not the sole appointor

• could not act unilaterally

• was constrained by fiduciary obligations

This materially distinguished the case from authorities where effective unilateral control justified treatment as property.

2. Fiduciary Obligations Constrain the Exercise of Power

A critical doctrinal point is that the exercise of powers under a trust:

• must comply with fiduciary duties; and

• must be exercised for a proper purpose, consistent with the trust’s terms

The Court accepted that the husband could not lawfully deploy his powers:

• to benefit himself arbitrarily; or

• to indirectly benefit the wife without breaching those obligations.

Implication:Where powers are legally constrained, the mere existence of those powers does not create a proprietary interest.

3. Origin and Purpose of the Trust Are Highly Influential

The Court placed significant weight on the fact that:

• the wealth was accumulated over four generations

• it did not reflect the contributions of the parties

• the trust had a clear purpose of intergenerational succession

This aligns with longstanding authority emphasising that:

• intergenerational wealth may sit outside the matrimonial pool; and

• purpose-built succession structures are more likely to be preserved.

4. Not All Financial Interests Are “Property”

The Court reinforced the distinction between:

• Property → divisible under s 79, and

• Financial resources → relevant but not divisible

This distinction is critical in litigation strategy. A trust does not need to be included in the property pool to remain relevant to outcome—but classification significantly affects the degree of exposure.

5. The “Alter Ego” / Sham Analysis Remains Central

The Court was satisfied that the trusts were:

• not a sham

• not the husband’s “alter ego”

• not vehicles designed to defeat the wife’s claim

This reflects the broader doctrinal position that:

Trusts are most vulnerable where they operate as an extension of the individual, rather than as a genuine fiduciary structure.

Succession Planning Implications: Translating Principle into Strategy

The decision highlights a critical point for estate planning:

The effectiveness of a trust in asset protection contexts depends less on its existence and more on its design, purpose, and operation.

Structural Features That Strengthen Protection

Drawing directly from Caldwell principles, the following features are particularly protective:

Intergenerational Purpose

Trusts established for succession—rather than reactive asset shielding—carry greater legal weight.

Distributed Control

Multiple appointors or independent trustees reduce the risk of characterisation as personal property.

Exclusion of Spouses

Clear beneficiary classes can be decisive in litigation.

Absence of Distributions or Personal Use

A lack of historical benefit weakens arguments of effective ownership.

Structural Weaknesses That Increase Risk

Conversely, trusts may be exposed where:

• one party has effective unilateral control

• trust assets are used as personal assets

• distributions are frequent and personal

• the structure appears reactive or artificial

These factors may support an argument that the trust operates as the individual’s property in substance.

Practical Guidance for Clients and Advisors

For Queensland clients managing family wealth, the following principles emerge:

1. Align Structure With Purpose

Ensure trust deeds clearly reflect intergenerational succession objectives.

2. Review Control Mechanisms

Appointor and trustee roles should be carefully designed and documented.

3. Maintain Evidentiary Integrity

Minutes, resolutions, and distribution history must support the stated purpose.

4. Integrate Estate and Family Law Advice

Trust planning must consider both Wills and family law exposure, not treat them in isolation.

Frequently Asked Questions

Does Caldwell mean trusts are safe from family law claims?

No. The decision confirms that trusts may be protected where properly structured—but each case turns on its facts, particularly control and purpose.

When will a trust be treated as property?

Where a party has effective control or can cause distributions without meaningful restriction, the Court may treat trust assets as property.

What is the most important factor in protecting a trust?

There is no single factor, but genuine purpose combined with constrained control is consistently critical.

Can intergenerational wealth still be included in the property pool?

Yes, but Caldwell shows that long‑standing family wealth structures, especially those not created by the parties, may be excluded.

What role do fiduciary duties play?

They limit how trust powers can be exercised, which may prevent a party from being treated as the owner of the assets.

How Sarinas Legal Can Help

At Sarinas Legal, we provide strategic advice at the intersection of:

• Family law property disputes involving trusts

• Succession and estate planning for family wealth

• Asset protection structuring for business owners and families

We focus not only on drafting structures—but ensuring those structures will withstand scrutiny under s 79 if tested.