03 Mar 2026
1 min read
03 Mar 2026
It is widely recognised that de facto relations are very common in Australia. Even so, many couples are still surprised to learn that simply living together, without being married, can create significant legal rights and obligations.
It is important to understand whether your relationship qualifies as a ‘de facto’ relationship under Australia law, and what this means. This becomes especially relevant when a separation occurs, particularly if property or children are involved. We break down what a de facto partner is, how these relationships are recognised in Australia, and the legal consequences that can arise when a de facto relationship ends.
Under section 4AA of the Family Law Act 1975 (Cth) ( “FLA”), a de facto relationship is defined as a relationship between two people who live together as a couple on a ‘genuine domestic basis’ regardless of gender, and who are not legally married or related by family. The FLA sets out how de facto relationships are treated for most legal purposes, including:
In most cases, de facto partners have similar rights to those of married couples when the relationship breaks down, as long as certain criteria are met (outlined below). Court applications are generally made using the same forms as married couples, and the matter proceeds through similar legal processes.
Please Note: A de facto relationship can exist even where one person is legally married to someone else or in another de factor relationship.
When determining if two individuals were in a de facto relationship, the Court considerers a range of factors, including-
No single factor is decisive. The Court looks at all the evidence and considers the overall nature of the relationship.
A person in a de facto relationship can apply for a financial property settlement under the FLA if any of the following conditions are met:
This means that even relationships lasting less than two years may still receive legal protection in certain circumstances.
Yes, although this is an important factor, this is not essential. The Courts recognise that some couples live apart due to work, family or other commitments and can still be in a de facto relationship, if other signs of a of a genuine domestic partnership are present. In short, it’s the nature and quality of the relationship that matters, not just whether you share a home.
Breakdown of De Facto Relationships: Understanding your Options
When a de facto relationship ends, both partners may have similar rights to those of married couples, including:
If the Court has the authority to make financial orders (as discussed above), de facto partners can apply for a property settlement. The Court follows the same approach used for married couples.
This involves a four-step approach, where the Court:
A de facto partner may be entitled to spousal maintenance if they cannot adequately support themselves and the other party has the financial capacity to assist.
If de facto partners have children under 18, the Court decides parenting arrangements based on what is in the child’s best interests. Whether the parents were married or not makes no difference to this assessment.
If you are unsure whether your relationship meets the definition of a de facto relationship, or if you’re going through a separation, it is wise to seek legal advice early. A family lawyer can help you-
At PCL Lawyers, we understand that de facto relationships can be quite complex, especially when the legal status of the relationship is unclear. We provide clear and practical advice to help you understand your position and protect your rights and interests.
Whether you are entering, currently in, or leaving a de facto relationship, our experienced family lawyers can guide you through the legal issues with confidence and clarity.
Applications for property settlement and spousal maintenance generally need to be filed within two years from the date of separation. If you miss this date, you may need to seek the Court’s permission to proceed, and approval is not guaranteed.
Many individuals incorrectly assume that:
These assumptions are incorrect. Australian law focuses on the substance of the relationship, rather than its form. Even shorter relationships, informal living arrangements, or situations where contributions are unequal can still result in legal obligations for one or both parties.
Yes, de facto partners in Australia can enter into a Binding Financial Agreement (like a prenup or postnup) to set out how their financial assets will be protected and managed in the event of separation.
Disclaimer: This article has been prepared for general information purposes and may not apply to your situation. This information should not be relied upon for legal, tax or accounting advice. Your individual circumstances will alter any legal advice given. The views expressed may not reflect the opinions, views or values of PCL Lawyers and belong solely to the author of the content. © PCL Lawyers Pty Ltd.
If you require legal advice specific to your situation please speak to one of our team members today.
Clementina’s practice spans both Adelaide and Melbourne. She is a dedicated and compassionate family lawyer with over 20 years’ experience practising in all aspects of family law, specialising in...
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