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When does a de facto relationship begin and end? – Family Law

  • Published: 20 September 2022
  • Last Updated: 17 March 2026
De facto relationships are increasingly common in Queensland, yet many people are unaware of their legal rights and obligations in such relationships, or when a de facto relationship legally begins and ends. Understanding your position is crucial, particularly if your relationship breaks down and financial or property matters arise.

Under the Family Law Act 1975 (Cth), a de facto relationship exists when a couple lives together on a genuine domestic basis as a couple. Several factors help the court determine if a de facto relationship exists, including:

  • Duration of the relationship
  • Presence of a sexual relationship
  • Degree of mutual commitment to a shared life
  • Ownership of property
  • Financial interdependence

 

These factors are outlined in section 4AA(2) of the Family Law Act 1975, and the court will consider all relevant circumstances when making a determination.

 

This article is part of our [2026 National BFA Resource Hub]. If you’re looking for our full suite of guides on business protection and emotional navigation, you can explore the hub here.

 


How Long is a De Facto Relationship in Queensland?

There is no fixed time for when a de facto relationship officially starts. However, for legal purposes, especially regarding property and financial rights, the court typically requires that the couple has lived together for at least two years.

Alternatively, a relationship may be recognised as de facto if:

  • The couple has at least one child together, or
  • The relationship is registered under the relevant State or Territory legislation

 

Even if these criteria aren’t met, the court can still determine that a de facto relationship exists based on the factors outlined in the Family Law Act.

 


Ending a De Facto Relationship

Ending a de facto relationship in Queensland does not require divorce or court filings, unlike a marriage. The official act marking the end of the relationship is to inform your partner that the relationship has ended.

  • Amicable separation: If both parties agree, assets and property can be divided without court involvement.
  • Disputed separation: If the parties cannot agree, an application can be made to the Family Court or Federal Circuit Court for financial or property orders.

 

Important deadlines: Parties have two years from the separation to finalise property and maintenance matters.

 

A de facto relationship in Queensland will also end automatically in the event of:

  • The death of a partner
  • Either party entering into marriage
  • Either party entering a new registered relationship

 


Protect Your Rights in a De Facto Relationship

Whether you are currently in a de facto relationship or believe you might be, it is essential to understand your legal rights and obligations. Consulting with a qualified family lawyer can help you:

  • Protect your assets if the relationship breaks down
  • Understand property and maintenance entitlements
  • Ensure a fair and legally compliant separation

 

For couples in de facto relationships who want to protect their assets and plan for future financial security, a Binding Financial Agreement (BFA) can be a useful legal tool. Learn more about how BFAs work and how they can safeguard your interests in our article on Binding Financial Agreements: Protecting Assets and Future Security.


 

Bennett Carroll Solicitors provide advice on de facto relationships across Queensland, including Brisbane, Stafford, Upper Mount Gravatt, Kawana, Mermaid Beach, and Ipswich. We offer flexible consultations in person, by phone, email, or video.

 

Call us on 1300 334 566 or email info@bcglaw.com.au and safeguard your interests every step of the way- We are your legal problem solvers.

 

Binding Financial Agreement BFA Resource Hub for Asset Protection Australia. National remote family law services for business owners, de facto couples, and prenuptial agreements under the Family Law Act 1975.

 

When does a de facto relationship begin and end?

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This information is provided for general informational purposes only and does not constitute specific or personal legal advice. Please consult with a qualified member of our team for advice regarding your specific situation.

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