Home
Knowledge centre

Financial agreements and prenuptial agreements in Australia

Last updated: August 10, 2026
Share this post
Couple discussing a financial agreement with a family lawyer in Australia.

Key Takeaways

  • Financial agreements can help couples formalise how property and financial resources will be divided if a relationship ends.
  • Binding financial agreements may be made before, during, or after a marriage or de facto relationship.
  • Both parties must obtain independent legal advice for a financial agreement to be legally enforceable.
  • Financial agreements can help avoid court proceedings and provide greater certainty around property settlement matters.
  • Poor drafting, pressure, or inadequate disclosure may increase the risk of an agreement being challenged or set aside.

Understanding financial agreements in Australia

Financial agreements can play an important role in helping couples manage property and financial matters before, during, or after a relationship. These agreements can help clarify how assets, liabilities, and financial resources may be divided if a relationship ends. We explain how these agreements work, the legal requirements involved, and the potential benefits and risks you should understand before signing one.

What is a financial agreement?

A financial agreement is a legally binding agreement made under the Family Law Act that outlines how property, financial resources, liabilities, and other financial matters will be managed if a relationship ends. Financial agreements can be entered into before, during, or after a marriage or de facto relationship and are commonly used to formalise property settlement arrangements outside of court proceedings.

Types of financial agreements in Australia:

  • Section 90B agreements — made before marriage (commonly referred to as prenuptial agreements)
  • Section 90C agreements — made during a marriage
  • Section 90D agreements — made after divorce
  • Section 90UB agreements — made before a de facto relationship
  • Section 90UC agreements — made during a de facto relationship
  • Section 90UD agreements — made after a de facto relationship ends

What is a prenuptial agreement, and how does it differ?

A prenuptial agreement is a type of binding financial agreement made before marriage or before entering into a de facto relationship. It allows couples to set out how property, assets, liabilities, and financial resources will be managed if the relationship ends in the future.

While all prenuptial agreements are financial agreements, not all financial agreements are prenuptial agreements, as some can be made during or after a relationship.

Common misconceptions about prenuptial agreements

  • A prenuptial agreement is not only for wealthy couples: Financial agreements can be useful for many couples, including those with businesses, children from previous relationships, inheritances, or differing financial circumstances.
  • A prenuptial agreement does not automatically guarantee protection: Agreements may still be challenged or set aside if legal requirements are not properly met.
  • Prenuptial agreements are not only about divorce planning: Many couples use financial agreements to create financial clarity, reduce uncertainty, and formalise expectations under family law.

When should you make a financial agreement?

Financial agreements can be made at different stages of a relationship depending on the circumstances and goals of the parties involved. Some couples enter into agreements before marriage or moving in together, while others use financial agreements during a relationship or after separation to formalise property settlement arrangements and avoid future disputes.

TimingWhy couples may use a financial agreementPotential benefit
Before marriage or a de facto relationshipTo protect existing assets, businesses, inheritances, or family wealthGreater financial clarity and asset protection
During a relationshipTo formalise changing financial circumstances or business interestsClearer management of financial responsibilities
After separation or divorceTo formalise a property settlement without going to courtProvides an organised checklist of legally binding agreements

Are financial agreements legally binding?

Financial agreements can be legally binding in Australia if they comply with the requirements set out under the Family Law Act. Because these agreements can significantly affect legal rights and future property settlement entitlements, strict legal requirements must be followed for the agreement to be enforceable.

Process showing legal requirements for binding financial agreements in Australia.
  1. 01

    Obtain independent legal advice

    Each party must receive independent legal advice from their own Australian legal practitioner before signing the agreement. The advice must explain the effect of the agreement and the advantages and disadvantages of entering into it.

  2. 02

    Ensure the agreement is in writing

    The financial agreement must be prepared in writing and clearly outline how property, liabilities, superannuation, and financial resources will be managed or divided.

  3. 03

    Both parties must sign voluntarily

    The agreement must be signed voluntarily without undue pressure, coercion, or unfair influence. Both parties should have sufficient time to review the agreement before signing.

  4. 04

    Proper legal documentation must be completed

    Each lawyer must provide a signed statement confirming that independent legal advice was given. This documentation is an important requirement for the agreement to remain legally enforceable.

Benefits of financial agreements

Couple reviewing financial planning documents related to a financial agreement.

Financial agreements can provide couples with greater clarity and control over how property and financial matters will be managed if a relationship ends. When properly prepared, these agreements may help reduce uncertainty, minimise disputes, and formalise arrangements outside of court proceedings.

Key benefits:

  • Greater certainty around property and financial arrangements
  • Opportunity to formalise agreements privately and outside of court
  • Potential reduction in legal costs and future disputes
  • Protect existing assets and financial interests

    Financial agreements can help protect businesses, inheritances, investments, and other financial resources that one or both parties wish to preserve in the event of a relationship breakdown.

  • Create financial clarity early

    Discussing financial matters and expectations early can help couples better understand their respective financial circumstances and future responsibilities.

  • Reduce the likelihood of future disputes

    A clearly drafted agreement on the division of property and financial resources may help minimise uncertainty and conflict following separation.

  • Formalise arrangements without going to court

    Financial agreements can allow separating couples to formalise property settlement arrangements privately rather than relying on court proceedings.

  • Provide flexibility for different relationships

    Binding financial agreements can be tailored to married couples, de facto relationships, blended families, and individuals with unique financial circumstances.

  • Support long-term financial planning

    Some couples use financial agreements as part of broader financial and estate planning strategies, particularly where businesses, trusts, or family wealth structures are involved.

Risks and limitations of financial agreements

Poor financial disclosure

A financial agreement may be challenged if one party fails to provide full and frank disclosure about assets, liabilities, income, or financial resources. Ensure both parties exchange accurate and complete financial information before signing the agreement.

Inadequate legal advice

Financial agreements can become unenforceable if both parties do not obtain proper independent legal advice. Each party should receive advice from their own Australian legal practitioner or divorce lawyer before signing the agreement.

Pressure or unfair influence

Agreements signed under pressure, coercion, or significant imbalance in bargaining power may later be set aside by the court. Allow sufficient time for negotiation, review, and voluntary decision-making throughout the process.

Outdated agreements

Changes in financial circumstances, children, businesses, or health may affect whether an agreement remains appropriate over time. Review financial agreements periodically and obtain updated legal advice where circumstances change significantly.

Incorrect drafting or technical errors

Poorly drafted agreements or failure to comply with Family Law Act requirements can create enforceability risks. Work with experienced family lawyers familiar with binding financial agreements and family law requirements.

Assuming financial agreements cover everything

Financial agreements generally focus on financial and property matters and may not fully address parenting arrangements or child support issues. Seek legal advice about whether additional family law documents or arrangements may also be required.

Get financial agreements done properly from the start

A poorly prepared financial agreement can create unnecessary risk, uncertainty, and future disputes. Get clear, legal advice from experienced family lawyers to ensure your agreement is properly drafted, legally enforceable, and tailored to your financial circumstances.

Lawyer reviewing legally compliant financial agreement documents in Australia.

Can financial agreements be set aside or challenged?

Although financial agreements can be legally binding, the Family Court may set aside or invalidate an agreement in certain circumstances. Courts will generally examine whether the agreement complies with the Family Law Act and whether both parties entered into the agreement fairly and voluntarily.

Financial agreements may also be challenged where there has been inadequate disclosure, unfair conduct, or significant changes in circumstances that make the agreement impractical or unjust. This is why obtaining independent legal advice and properly preparing the agreement is critical.

Examples of when agreements may be challenged:

  • One party failed to provide full and frank financial disclosure
  • The agreement was signed under pressure, coercion, or undue influence
  • The agreement does not properly comply with legal requirements under family law legislation

How much does a financial agreement cost in Australia?

The cost of preparing a financial agreement in Australia can vary depending on the complexity of the relationship, the value of the assets involved, and whether negotiations are straightforward or contested. Factors such as businesses, trusts, superannuation, disclosure requirements, and existing property arrangements may also affect legal costs.

Because binding financial agreements require independent legal advice for both parties and careful drafting to ensure enforceability, it is important to obtain advice tailored to your circumstances rather than relying on generic templates or informal agreements.

Create certainty around your financial future

Couple discussing financial agreement planning with a family lawyer in Australia.

Financial agreements can help couples clarify property and financial arrangements while reducing uncertainty if a relationship ends. If you are considering a binding financial agreement or prenuptial agreement, speaking with an experienced family lawyer can help ensure your agreement is properly prepared and legally enforceable.

Share this post

About Keleigh Robinson

Principal Solicitor, Accredited Family Law Specialist

Keleigh is passionate about family law and works hard to achieve pragmatic solutions for her clients.

Blog

Related resources

Protect your interests with the right legal guidance

03 9670 5711
Level 10, 313 La Trobe Street, Melbourne, VIC 3000
Mon – Fri, 9 am – 5:30 pm
Wilson Parking on La Trobe St
Clear financial agreements can help reduce uncertainty and protect both parties moving forward. Our experienced family lawyers can guide you through the process and ensure your agreement is properly prepared.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.