Introduction
More Australians are choosing to live together without marrying. The marriage rate fell from 7.1 to 5.5 per 1,000 adults between 2004 and 2024 (Australian Bureau of Statistics, 2025). Yet many de facto partners still believe a wedding certificate is the only thing that grants legal rights. It isn't. If you live with a partner, you may have nearly the same property, superannuation, and parenting rights as a married couple. This plain-English guide explains what counts as de facto, what you can claim, and the deadlines that matter.
TL;DR: Since 1 March 2009, de facto couples in Australia have had nearly the same property and financial rights as married couples under the Family Law Act 1975 (Attorney-General's Department). You generally qualify after living together two years, or sooner if you have a child or made substantial contributions. Claims must be filed within two years of separation.
What Counts as a De Facto Relationship in Australia?
Under the Family Law Act 1975, a de facto relationship exists where two people who are not married or related live together as a couple on a genuine domestic basis (Federal Circuit and Family Court of Australia). The law applies equally to same-sex and opposite-sex couples. There's no single box to tick. Courts weigh the whole picture of your life together.
Section 4AA of the Act lists the factors a court considers. No single one is decisive, and you don't need all of them. A judge looks at how the relationship actually worked day to day, then decides whether it was genuinely domestic.
For the bigger picture of how these rules sit within the system, see our complete guide to how family law works in Australia.
Do De Facto Couples Have the Same Rights as Married Couples?
Almost. Since 1 March 2009, eligible de facto couples have been able to have property and financial matters decided the same way as married couples (Attorney-General's Department). The same four-step framework applies, the same court hears the case, and superannuation splitting is now available nationwide.
The last gap closed recently. Western Australia ran a separate family law system, and until reform in 2025, WA de facto couples could not split superannuation on separation the way couples elsewhere could. That change brought WA into line with the rest of the country, so de facto super splitting is now genuinely national (Lavan; Attorney-General's Department, 2025).
A few differences remain. There's no divorce process to end a de facto relationship; it simply ends when you separate. And because there's no marriage certificate, you may first have to prove the relationship existed before a court will deal with property. Married couples skip that step.
Why does any of this matter to so many people? Because marriage is in long-term decline while de facto living rises. The crude marriage rate fell from 7.1 per 1,000 adults in 2004 to 5.5 in 2024 (Australian Bureau of Statistics, 2025).
How Do You Prove a De Facto Relationship?
Because there's no certificate, you may need to prove the relationship existed, and courts look for evidence across the section 4AA factors (Federal Circuit and Family Court of Australia). The more threads you can show, the stronger your case. Think about what an outsider would accept as proof you lived as a couple.
Useful evidence includes a shared lease or mortgage, joint bank accounts, utility bills in both names, photos together over time, travel bookings, and statements from friends and family. If you registered your relationship with a state registry, that's often a shortcut. Registration is strong evidence that a de facto relationship existed, which can save time and argument later.
What if you kept your finances separate? That alone doesn't sink a claim. Plenty of committed couples split the bills and keep their own accounts. The court reads the factors together, not as a checklist where one missing item ends the matter.
What Are You Entitled to After a De Facto Separation?
De facto partners can seek property settlement, spousal maintenance, and superannuation splitting under the same four-step framework as married couples (Federal Circuit and Family Court of Australia). The court identifies the asset pool, assesses each person's contributions, considers future needs, and then decides what's just and equitable.
Contributions count whether or not they involved money. Raising children, running the household, or supporting a partner's career are weighed alongside income and savings. So the partner who earned less, or paused work to care for kids, is not written out of the settlement. Far from it.
The 2024 reforms apply to de facto couples too. The Family Law Amendment Act 2024, passed on 29 November 2024, requires courts to consider the economic effect of family violence when dividing property (Attorney-General's Department, 2025). For a full walk-through of the framework, read our guide to the four-step property settlement process, and see what's changed in the 2024 family law reforms.
How Long Do You Have to Make a Claim?
You must apply for a property settlement within two years of a de facto relationship ending; after that, you need the court's permission to apply late, which isn't always granted (Federal Circuit and Family Court of Australia). Miss the window and you risk losing the right to claim at all.
Here's the distinction competitors often blur. There are two different two-year periods. One is the qualifying threshold: generally two years of living together before you can bring a claim. The other is the deadline: two years after separation to lodge that claim. They sound the same but do opposite jobs, and confusing them costs people their entitlements.
The "separation date" matters because the clock starts there. Separation can happen even while you live under the same roof, which makes the date harder to pin down than people expect. If there's any doubt, get advice early rather than assuming you have plenty of time.
What About Children of a De Facto Relationship?
Parenting rights and responsibilities are identical regardless of marital status; the child's best interests govern every decision (Family Law Act 1975). Whether parents were married, de facto, or never lived together, the law treats the child the same way.
That means the same parenting arrangements, the same child support rules, and the same requirement to attempt family dispute resolution before going to court. Marriage gives no parent an advantage, and its absence takes nothing away from a child.
For how courts actually decide living and time arrangements, see our guide to parenting arrangements after separation. If you and your former partner disagree, resolving disputes through mediation is usually required before a court will hear the matter.
When Should You Get Legal Advice?
Get advice early, especially before the two-year post-separation deadline or before signing any agreement. A short consultation can confirm whether you even qualify as de facto and what your pool of assets looks like, long before anything becomes urgent or contested.
Couples can also plan ahead. A binding financial agreement, sometimes called a "de facto prenup," can set out how assets are divided if the relationship ends. These agreements are rising in popularity, but they have strict formal requirements and each person needs independent legal advice for the agreement to hold up. Done properly, they bring certainty. Done badly, they get set aside. If you want to understand your options, you can find a family lawyer in your area through our directory.
Frequently Asked Questions
How long do you have to live together to be de facto?
Generally two years, but you can qualify sooner. If you have a child together, or one partner made substantial financial or non-financial contributions, a court may recognise a de facto relationship before the two-year mark (Federal Circuit and Family Court of Australia). The two-year rule is a guide, not an absolute gate.
Do de facto partners get half of everything?
No. There's no automatic 50/50 split for de facto couples, just as there isn't for married couples. The same four-step process applies, weighing each person's contributions and future needs before deciding what's just and equitable (Federal Circuit and Family Court of Australia). Outcomes vary widely with the circumstances.
Can de facto couples split superannuation?
Yes, and now nationwide. Since the 2025 Western Australian reform, de facto couples across every state and territory can split superannuation on separation under the federal framework (Lavan; Attorney-General's Department, 2025). WA was the last jurisdiction to come into line with the rest of the country.
Does a de facto partner inherit if there's no will?
Generally yes. Under state and territory intestacy laws, a surviving de facto partner is usually entitled to inherit when their partner dies without a will. The rules are state-based and the share depends on whether there are children, so get advice on your specific jurisdiction rather than assuming.
Can you be de facto while still legally married to someone else?
Yes. You can be in a de facto relationship while still legally married to a different person (Family Law Act 1975). The law recognises that people separate long before they divorce, so a new genuine domestic relationship can be de facto even if a former marriage hasn't formally ended.
Conclusion
Never marrying does not mean never having rights. For most couples who build a life together, the law treats a de facto relationship much like a marriage when it comes to property, superannuation, and children.
Key Takeaways:
- De facto couples have had nearly the same financial rights as married couples since 1 March 2009
- You generally qualify after two years, or sooner with a child or substantial contributions
- The same four-step property framework applies; there's no automatic 50/50 split
- Superannuation splitting is now available nationwide, including WA after the 2025 reform
- You have two years from separation to claim, so get advice before the deadline closes
- Parenting rights are identical regardless of whether you ever married
Related Family Law Guides
- How Does Family Law Work in Australia? A Complete 2026 Guide — Overview of divorce, property, and parenting
- Property Settlement After Separation — The four-step process and how assets are divided
- Child Custody & Parental Responsibility in Australia — How courts decide parenting arrangements
- Family Law Changes 2026: What's New and What It Means — The 2024 family-violence property rules explained
- Mediation vs Court: Which Path for Your Family Dispute? — Resolving disputes before court
Thinking about your next step? Find a family lawyer in your area before the two-year deadline, or read more about de facto and family law in Australia.