Pre-Nuptial Agreements in Australia: What You Need to Know Before Saying “I Do”

Oct 31, 2025By Mint Legal Brisbane
Mint Legal Brisbane

A pre-nuptial agreement, often called a “prenup,” is a legally binding financial agreement made before marriage. In Australia, it is formally known as a Binding Financial Agreement (BFA) under the Family Law Act 1975. This agreement outlines how assets, debts, and finances will be divided if a relationship ends.

Pre-nuptial agreements are not just for the wealthy. They are practical tools for couples who wish to protect their financial interests, manage risk, and avoid disputes in the future.

Legal Foundation of Pre-Nuptial Agreements

Under Australian family law, pre-nuptial agreements are recognised as Binding Financial Agreements. These agreements can be made before, during, or after marriage. The Family Law Act provides the legal framework to ensure that these agreements are enforceable.

A valid pre-nuptial agreement must meet strict legal requirements. Both parties must receive independent legal advice before signing. Each must also fully disclose their financial position. Failure to comply with these requirements can render the agreement invalid.

Family law concept. Wooden figures and gavel.

Why Couples Choose Pre-Nuptial Agreements

Many couples use pre-nuptial agreements to create financial clarity and security. These agreements provide a sense of certainty, especially in complex financial situations. Common reasons include:

  • Protecting assets acquired before the relationship.
  • Securing inheritances or family wealth.
  • Managing financial responsibilities and debts.
  • Clarifying property division in case of separation.
  • Avoiding costly and emotional legal battles.
  • Pre-nuptial agreements are also beneficial for second marriages or relationships involving children from previous unions.

What a Pre-Nuptial Agreement Can Cover

A well-drafted prenuptial agreement outlines how financial matters will be handled if the marriage ends. It can cover:

  • Division of property, investments, and real estate.
  • Superannuation entitlements and financial resources.
  • Management of joint and individual debts.
  • Spousal maintenance obligations.
  • Treatment of future inheritances or business interests.

However, pre-nuptial agreements cannot include arrangements for child custody or child support. Those matters are governed separately under Australian family law.

Key Legal Requirements for Validity

For a pre-nuptial agreement to be legally binding, it must meet the following criteria:

  • Written Agreement – The agreement must be in writing and signed by both parties.
  • Independent Legal Advice – Each party must receive independent legal advice from a qualified lawyer.
  • Statement of Advice – Each lawyer must sign a statement confirming the advice provided.
  • Voluntary Consent – Both parties must enter the agreement voluntarily, without pressure or coercion.
  • Full Disclosure – Each must provide complete and honest disclosure of assets, liabilities, and financial resources.

If any of these elements are missing, the court may set aside the agreement.

Family law concept. Figures of scales and families for adoption.

Can a Pre-Nuptial Agreement Be Challenged?

Yes, under certain circumstances, a pre-nuptial agreement can be overturned by the court. Common reasons include:

  • One party did not receive independent legal advice.
  • The agreement was signed under duress or undue influence.
  • There was fraudulent non-disclosure of assets.
  • The agreement is deemed unconscionable or unfair.
  • Significant changes in circumstances make the agreement impractical.

For example, if a couple has children after signing the agreement, and the arrangement becomes unjust, the court may set it aside.

Benefits of Having a Pre-Nuptial Agreement

A pre-nuptial agreement offers several advantages for couples planning to marry.

1. Financial Transparency
It encourages open discussions about money and expectations. Both parties gain clarity on their financial position before marriage.

2. Asset Protection
It safeguards individual assets, businesses, and inheritances, ensuring they remain protected if the relationship ends.

3. Conflict Prevention
With financial matters clearly defined, disputes during separation are reduced. This can prevent lengthy and stressful court battles.

4. Cost Efficiency
Resolving financial issues through litigation can be expensive. A pre-nuptial agreement helps avoid those costs.

5. Peace of Mind
Couples can focus on their relationship knowing that financial security is assured.

Risks and Limitations of Pre-Nuptial Agreements

Although beneficial, pre-nuptial agreements have some limitations.

  • They can be challenged if not properly executed.
  • They require complete financial transparency.
  • They cannot determine parenting or child support arrangements.
  • They might create emotional tension during discussions.

However, with professional legal guidance, these challenges can be effectively managed.

Steps to Creating a Pre-Nuptial Agreement

Creating a pre-nuptial agreement involves careful planning and legal compliance. Here’s how to approach it:

1. Discuss the Purpose
Both partners should have an open conversation about why the agreement is necessary. Transparency builds trust and understanding.

2. List All Assets and Liabilities
Each partner must disclose their full financial position. This includes properties, savings, debts, and investments.

3. Engage Independent Legal Advisors
Each partner must hire separate lawyers to provide individual advice. This ensures fairness and legal validity.

4. Draft the Agreement
A qualified family lawyer will draft the agreement according to your financial circumstances and goals.

5. Review and Finalise
After reviewing and ensuring both parties are satisfied, they sign the agreement. Each lawyer provides a statement confirming advice was given.

6. Keep the Agreement Secure
Both parties should keep signed copies of the agreement in a safe location.

Common Misconceptions About Pre-Nuptial Agreements

There are many myths about pre-nuptial agreements that can deter couples from considering them.

“Prenups are only for the wealthy.”
Not true. Anyone with assets, debts, or financial goals can benefit from one.

“They mean you don’t trust your partner.”
Pre-nuptial agreements are not about mistrust. They promote transparency and prevent misunderstandings.

“They’re not enforceable in Australia.”
False. When properly executed, they are legally binding under the Family Law Act.

“It’s too early to discuss finances.”
In reality, financial discussions are essential for building a stable relationship.

Pre-Nuptial Agreements for De Facto Couples

In Australia, de facto couples can also enter into Binding Financial Agreements. These are similar to pre-nuptial agreements for married couples.

A de facto relationship involves two people living together on a genuine domestic basis, whether heterosexual or same-sex. The agreement can be made before, during, or after the relationship. It provides financial certainty and protection, just like a pre-nuptial agreement.

Husband and wife signing a prenuptial document.

How Courts View Pre-Nuptial Agreements

Australian courts uphold pre-nuptial agreements when they meet legal standards. The court examines whether both parties received independent legal advice and entered voluntarily. It also considers fairness at the time of signing.

Courts rarely overturn properly executed agreements. However, they will intervene if the agreement is unjust or one party was disadvantaged.

Tax and Superannuation Considerations

When drafting a pre-nuptial agreement, tax implications must be considered. Asset transfers during separation may trigger capital gains tax (CGT) unless properly structured.

Superannuation interests can also be included in the agreement. Couples can decide how their superannuation will be split upon separation. Seeking advice from both a lawyer and a financial advisor ensures compliance and accuracy.

Updating or Amending a Pre-Nuptial Agreement

A pre-nuptial agreement can be updated if circumstances change. For example, if one partner inherits property or the couple has children, they may wish to revise the terms.

To make changes, both parties must again receive independent legal advice. The updated agreement must be in writing and properly executed.

Regular reviews ensure the agreement remains fair and relevant.

What Happens Without a Pre-Nuptial Agreement

If a couple separates without a pre-nuptial agreement, the Family Court determines property division based on several factors. These include:

  • Each party’s financial and non-financial contributions.
  • Future needs, such as caring for children.
  • The overall fairness of the proposed division.

This process can be lengthy and emotionally draining. Having a pre-nuptial agreement avoids uncertainty and preserves privacy.

Choosing the Right Lawyer for Your Pre-Nuptial Agreement

Selecting the right lawyer is crucial. Your lawyer should specialise in family law and have experience with Binding Financial Agreements.

An experienced lawyer ensures that your rights are protected and that the agreement complies with all legal standards. They also help you understand potential tax and financial implications.

Final Thoughts: Are Pre-Nuptial Agreements Worth It?

Yes, pre-nuptial agreements are worthwhile for couples seeking financial certainty. They offer peace of mind, protect assets, and reduce the risk of disputes.

While discussing financial matters before marriage may feel uncomfortable, it strengthens mutual understanding and trust. A well-drafted agreement protects both parties and simplifies the process if separation occurs.

With the right legal advice, a pre-nuptial agreement becomes an essential part of responsible financial planning.

Conclusion

Pre-nuptial agreements in Australia provide valuable protection for couples entering marriage. They define financial rights, prevent conflicts, and ensure fairness. By meeting legal requirements and obtaining expert advice, couples can secure their future with confidence.

Before saying “I do,” consider the benefits of a pre-nuptial agreement. It’s not about expecting separation—it’s about building a secure foundation for your marriage.

Contact Mint Legal for further assistance on 0452441583.

 
Keywords: pre-nuptial agreements in Australia, Binding Financial Agreement, family law, property settlement, asset protection, marriage laws, financial disclosure, spousal maintenance, de facto relationships, legal advice.