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Prenuptial Agreements in NSW: Are They Legally Enforceable?

Understanding Prenuptial Agreements in NSW

Prenuptial agreements—commonly referred to as Binding Financial Agreements (BFAs) in Australia—are designed to protect assets, financial interests, and future entitlements before entering into marriage or a de facto relationship. In NSW, these agreements can outline how property, financial resources, and spousal maintenance will be handled in the event of separation.

However, while prenuptial agreements are legally recognised, they are not automatically enforceable. Certain legal requirements must be met, and there are circumstances where a court may set aside or invalidate an agreement.

This guide explains the legal enforceability of prenuptial agreements in NSW, when they can be challenged, and how to ensure your agreement remains valid under the law.

Are Prenuptial Agreements Legally Binding in NSW?

A Binding Financial Agreement (BFA) is legally enforceable if it meets the requirements set out under the Family Law Act 1975 (Cth).

For a prenuptial agreement to be valid and enforceable in NSW, it must: 

  • Be in writing and signed by both parties. 
  • Clearly outline how property and finances will be divided in case of separation. 
  • Include a certificate of independent legal advice for each party. 
  • Not be obtained under duress, fraud, or undue influence
  • Be fair and reasonable at the time it was signed. 
  • Comply with the Family Law Act 1975 (Cth) regarding financial arrangements.

Key Insight: Even if an agreement meets these requirements, it can still be challenged in court if circumstances change significantly.

When Can a Prenuptial Agreement Be Challenged?

While BFAs are designed to be legally binding, the court has the authority to set aside an agreement if it finds: 

  • Non-disclosure of assets – If one party failed to disclose all financial interests. 
  • Unfair or unconscionable terms – If the agreement is one-sided and severely disadvantages one party. 
  • Duress or undue influence – If one party was pressured into signing the agreement. 
  • Fraud or misrepresentation – If false information was provided before signing. 
  • Significant changes in circumstances – If hardship arises due to unforeseen events, such as the birth of a child or financial hardship. 
  • Failure to meet legal requirements – If the agreement was not properly drafted or lacks independent legal advice.

Best Practice: To avoid disputes, ensure the agreement is transparent, fair, and legally sound at the time of signing.

How to Ensure a Prenuptial Agreement Is Enforceable

To improve the likelihood that your Binding Financial Agreement will be upheld in court, follow these steps:

Step 1: Full Financial Disclosure

  • Both parties must fully disclose all assets, debts, and financial interests. ✔ Hidden assets may invalidate the agreement if discovered later.

Step 2: Obtain Independent Legal Advice

  • Each party must receive legal advice from a separate, independent lawyer. ✔ Lawyers must provide a signed certificate confirming that legal advice was given.

Step 3: Ensure the Agreement Is Fair and Reasonable

  • Avoid overly one-sided or unfair terms. ✔ Courts are more likely to uphold agreements that provide fair financial arrangements.

Step 4: Regularly Review and Update the Agreement

Prenuptial agreements should be reviewed if:

  • Financial circumstances change significantly.
  • Children are born or adopted.
  • New assets are acquired (e.g., property, businesses).

Step 5: Follow Proper Legal Drafting Procedures

  • The agreement must be drafted properly in accordance with the Family Law Act 1975 (Cth)
  • DIY agreements or poorly drafted contracts may be challenged in court.

Key Tip: A well-drafted, legally compliant agreement is far more likely to be upheld by a court.

What Happens If a Prenuptial Agreement Is Invalid?

If a court finds a BFA to be unenforceable, the property settlement will be determined under standard Family Law Act principles. This means: 

  • The court will assess financial and non-financial contributions of both parties. 
  • Assets will be divided based on fairness and equity
  • Spousal maintenance claims may apply if one party is left in financial hardship.

Key Insight: If you believe your prenuptial agreement may be challenged, seek legal advice immediately to discuss available options.

FAQs on Prenuptial Agreements in NSW

1. Can a Prenuptial Agreement Protect My Business in a Divorce?

  • Yes. Business assets can be protected through a well-drafted BFA. ✔ If not included in an agreement, business interests may be subject to division.

2. What If My Partner Pressured Me to Sign the Agreement?

  • Agreements signed under duress or coercion may be set aside by the court. ✔ Seek legal advice if you believe pressure or undue influence was involved.

3. Can We Make a Prenup After Marriage?

  • Yes. You can create a Binding Financial Agreement before, during, or after marriage
  • Postnuptial agreements serve the same legal function as prenuptial agreements.

4. What If My Financial Situation Changes After We Sign?

  • Courts may reconsider unfair agreements if circumstances significantly change. ✔ It’s advisable to update the agreement if major life changes occur.

5. Can a Prenup Cover Spousal Maintenance?

  • Yes. BFAs can outline spousal maintenance obligations. ✔ However, the agreement must remain fair and reasonable to be upheld.

Conclusion: Ensuring a Secure and Enforceable Prenuptial Agreement

Prenuptial agreements in NSW provide valuable legal protection for assets, financial resources, and future entitlements. However, their enforceability depends on proper drafting, full disclosure, fairness, and compliance with legal requirements.

  • Ensure full financial disclosure to prevent future challenges. 
  • Obtain independent legal advice before signing. 
  • Regularly review agreements to reflect changing circumstances. 
  • Avoid unfair terms that may lead to a court challenge. 
  • Seek expert legal assistance when drafting or reviewing a BFA.

At Jones Hardy Law, we provide expert guidance on drafting, reviewing, and enforcing prenuptial agreements to safeguard your financial interests.For professional legal assistance, contact Jones Hardy Law today at JonesHardyLaw.com.au for a confidential consultation.

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