Binding Financial Agreements in Victoria: Enforceability, Drafting Failures and Thorne v Kennedy in Practice 

For high-net-worth individuals in Victoria, a Binding Financial Agreement (BFA) is often viewed as a sophisticated risk-management tool designed to protect business interests, family wealth, inheritances, and future financial certainty. However, whether a binding financial agreement enforceable Victoria depends on far more than signing a document before or during a relationship. Courts regularly scrutinise BFAs for procedural defects, unfair pressure, inadequate disclosure, and failures to comply with strict legislative requirements. In practice, disputes frequently arise where one party alleges duress, unconscionable conduct, or defective independent legal advice, particularly in relationships involving significant power imbalances or urgent signing circumstances. 

The High Court’s decision in Thorne v Kennedy fundamentally reshaped how courts assess BFA enforceability, especially for affluent couples entering pre-marital or post-separation agreements. For Victorian professionals, business owners, medical specialists, executives and intergenerational wealth families, the decision remains highly influential in determining whether an agreement will survive judicial scrutiny. This article examines how section 90G compliance operates in practice, the drafting failures that commonly invalidate agreements, and what parties can do to maximise the likelihood that a BFA will be upheld under Australian family law. 

When Is a Binding Financial Agreement Enforceable in Victoria?  

In Australia, the enforceability of a Binding Financial Agreement (BFA) is governed primarily by the Family Law Act 1975 (Cth), particularly Part VIIIA for married couples and Part VIIIAB for de facto relationships. For Victorian couples seeking asset protection before marriage, during a relationship or after separation, the critical legal question is not simply whether an agreement exists, but whether it satisfies strict statutory and equitable requirements. 

Under section 90G of the Family Law Act, a financial agreement will only be binding if: 

• the agreement is signed by all parties;  

• each party receives genuine independent legal advice about the effect of the agreement and its advantages and disadvantages; and  

• lawyers provide signed statements confirming that advice was given.  

These technical requirements appear straightforward, but courts examine the surrounding circumstances closely when disputes arise. Even where formal section 90G compliance exists, a court may still set aside a BFA if it was obtained through duress, fraud, unconscionable conduct, non-disclosure, or impracticability. 

The High Court decision in Thorne v Kennedy (2017) 263 CLR 85 remains the leading authority on BFA enforceability in Australia. In that case, a wealthy property developer required his fiancée to sign a pre-nuptial agreement shortly before their wedding or the marriage would not proceed. The High Court found the agreement invalid because the weaker party had no meaningful choice and was subject to both undue influence and unconscionable conduct. Importantly, the Court confirmed that merely receiving legal advice does not automatically cure unfair bargaining conditions. 

Another influential case is Hoult v Hoult [2013] FamCAFC 109, where the Full Court clarified that imperfect compliance with section 90G does not always invalidate an agreement if the court is satisfied it would be unjust and inequitable not to enforce it. However, later decisions demonstrate that courts remain cautious where drafting defects or procedural unfairness exist. 

For high-net-worth individuals in Victoria, this legal framework means BFAs must be approached as sophisticated legal instruments rather than template documents. Careful drafting, full financial disclosure, and properly documented negotiations are essential to reducing the risk of future litigation. Agreements linked to complex wealth structures, trusts or business interests should also align with broader asset protection and property settlement strategies, particularly where intergenerational wealth or corporate entities are involved. 

How Do Victorian Courts Assess Binding Financial Agreement Enforceability? 

What Do Courts Look for When Assessing BFA Enforceability? 

When deciding whether a binding financial agreement is enforceable in Victoria, courts examine more than whether the document was signed correctly. Judges assess the entire circumstances surrounding the agreement, including bargaining power, timing, financial disclosure, and the quality of independent legal advice received by each party. 

Under the Family Law Act 1975 (Cth), strict procedural compliance is essential, but courts also consider whether one party was placed under unfair pressure or lacked a genuine opportunity to negotiate. This approach became particularly significant after Thorne v Kennedy, where the High Court confirmed that agreements may fail despite technical compliance if the weaker party had little practical choice but to sign. 

For high-net-worth couples, courts frequently scrutinise agreements involving trusts, business interests, inherited wealth, and complex asset structures. Agreements signed shortly before a wedding or during emotionally pressured circumstances attract heightened attention. 

When Will a Court Set Aside a Binding Financial Agreement? 

Courts may invalidate a BFA even where formal section 90G compliance exists. The Family Law Act allows agreements to be set aside in situations involving: 

• duress or undue influence;  

• unconscionable conduct;  

• fraud or non-disclosure;  

• impracticability; or  

• circumstances making enforcement unjust.  

In practice, allegations of unconscionable conduct often arise where one party has a significantly stronger financial position or where the agreement heavily favours the wealthier party. Courts are cautious where a party was pressured to sign quickly or threatened with relationship consequences if they refused. 

The High Court in Thorne v Kennedy remains the leading authority on these principles, while cases such as Hoult v Hoult demonstrate that courts may still enforce agreements where minor technical defects exist, but overall fairness and legal compliance are established. 

Why Is Independent Legal Advice Critical? 

Effective independent legal advice is one of the most important safeguards supporting BFA enforceability. Courts expect each party to understand: 

• the legal effect of the agreement;  

• the rights they may be relinquishing; and  

• the financial consequences if separation occurs.  

Merely signing a lawyer’s certificate is not always enough. If advice was rushed, superficial or clearly inadequate, the agreement may still be vulnerable to challenge. 

For affluent individuals, legal advice should also address related issues such as business ownership, trust structures, asset protection, and future inheritances. Agreements connected to broader wealth preservation strategies are more robust when integrated with long-term financial planning. 

What Drafting Failures Commonly Make BFAs Unenforceable? 

Poor drafting remains a major reason BFAs fail in litigation. Courts frequently encounter agreements using generic precedents that do not properly address sophisticated financial arrangements. 

Common drafting failures include inadequate disclosure schedules, vague definitions of property interests, inconsistent maintenance clauses, and poorly documented negotiation processes. For high-value matters, precision is essential. A well-drafted agreement should align with broader property settlement and asset protection strategies rather than functioning as an isolated document. 

What Are the Most Common Disputes Over Binding Financial Agreements in Victoria? 

Disputes about BFA enforceability rarely arise because parties misunderstand the purpose of the agreement. More commonly, litigation emerges years after separation when asset values have increased during the relationship. For high-net-worth individuals in Victoria, disputes frequently involve family trusts, business ownership, inheritances, and allegations that the agreement was signed under unfair pressure. 

One of the most heavily litigated issues remains agreements signed shortly before a wedding. In Thorne v Kennedy, the High Court examined circumstances where a financially weaker fiancée was presented with a pre-nuptial agreement shortly before the ceremony and faced significant pressure to proceed. The decision continues to shape how Victorian courts assess claims of duress and unconscionable conduct, particularly where one party had limited bargaining power or insufficient time to negotiate. 

Disputes also commonly arise where wealthy families use BFAs alongside complex trust and corporate structures but fail to provide complete financial disclosure during negotiations. Courts regularly encounter matters involving undisclosed discretionary trusts, offshore holdings or beneficial interests that later become central issues in property proceedings. These omissions often support attempts to set aside the agreement for misleading conduct or non-disclosure. 

Business owners frequently encounter disputes where agreements were drafted around the parties’ financial position at the commencement of the relationship but failed to address future asset growth. Many contested matters involve privately owned companies that increased significantly in value during the marriage through expansion, acquisitions, or restructuring. Where the BFA does not clearly quarantine future growth, disputes often emerge over whether the increased enterprise value remains protected from family law claims. 

Spousal maintenance clauses are another major source of litigation. Courts continue to scrutinise agreements attempting to permanently exclude maintenance obligations where one party later experiences serious financial disadvantage, health issues or primary caregiving responsibilities that were not adequately contemplated when the agreement was executed. 

In practice, courts assess these disputes holistically rather than focusing solely on technical section 90G compliance. Agreements involving substantial wealth, intergenerational assets or sophisticated commercial structures require coordinated consideration of family law, taxation, and corporate planning issues. 

What Evidence and Strategy Matter Most in Binding Financial Agreement Disputes? 

In disputes involving binding enforceability of binding financial agreements in Victoria, the strongest cases are usually built long before litigation begins. Courts place significant weight on contemporaneous evidence showing that negotiations were transparent, voluntary, and legally informed. Emails, draft exchanges, file notes, financial disclosure records, and correspondence between solicitors frequently become critical evidence when allegations of duress, non-disclosure or unconscionable conduct are raised. 

For parties seeking to enforce a BFA, timing is strategically important. Agreements prepared well in advance of a wedding or major financial event are less vulnerable to challenge than documents introduced under compressed deadlines. Courts are also more likely to uphold agreements where negotiations demonstrate meaningful participation from both parties rather than a “take it or leave it” approach. 

The quality of independent legal advice is another major evidentiary issue. Courts increasingly scrutinise whether advice was substantive and tailored to the party’s actual circumstances rather than treated as a procedural formality for section 90G compliance. Detailed solicitor file notes and written advice can become decisive evidence if enforceability is later contested. 

For high-net-worth individuals, strategic preparation also requires careful integration between the BFA and broader commercial arrangements. Agreements involving trusts, shareholder structures, inherited wealth or succession planning should align with existing corporate frameworks and business asset protection strategies. Inconsistencies between financial agreements and related commercial documents often create avoidable vulnerabilities during litigation. 

Where disputes emerge after separation, early forensic analysis of disclosure records, asset movements and negotiation history is often critical in determining whether a negotiated resolution is commercially preferable to contested proceedings. 

Frequently Asked Questions About Binding Financial Agreements in Victoria 

How Can You Protect a Binding Financial Agreement from Future Challenge? 

For high-net-worth individuals in Victoria, a Binding Financial Agreement is only effective if it is carefully structured, strategically negotiated, and capable of withstanding future judicial scrutiny. Cases such as Thorne v Kennedy demonstrate that courts will closely examine issues of duress, unconscionable conduct, financial disclosure, and independent legal advice when assessing BFA enforceability. Technical section 90G compliance alone is rarely enough in complex wealth matters involving trusts, businesses, or intergenerational assets. 

Individuals considering a pre-nuptial agreement, post-nuptial agreement, or asset protection strategy should obtain tailored legal advice before entering any financial agreement. Pentana Stanton Lawyers advises clients on sophisticated family law and wealth protection matters, including binding financial agreements, property settlements and business asset protection strategies.  

To learn more, visit our family law services or arrange a confidential consultation with our team.