Almost one in five Australian couples live together without marrying, and Victorian law has largely stopped distinguishing between them and married couples when relationships end. But "largely" hides traps — a threshold question about whether the relationship qualifies, and a time limit that expires two years after separation. Here is what de facto partners in Victoria need to know.
What counts as a de facto relationship
Under the Family Law Act, you are in a de facto relationship if you are not married or related by family, and you have a relationship as a couple living together on a genuine domestic basis. Same-sex couples are fully included. Courts assess the substance of the relationship: its duration, the nature of your shared residence, whether a sexual relationship exists, financial interdependence, ownership and use of property, mutual commitment to a shared life, care of children, and how the relationship appeared publicly. No single factor decides it — people who kept separate bank accounts have qualified; people who shared an address have not.
The gateway to property claims
To bring a property or maintenance claim, a de facto partner must generally establish at least one gateway: the relationship lasted two years; there is a child of the relationship; the relationship was registered under Victoria's relationships register; or one partner made substantial contributions such that serious injustice would result if no order were made. Registration is the quiet achiever here — a registered relationship removes the two-year argument entirely, which is worth knowing both when you want protection and when you are asked to sign the form.
Property: the same framework as marriage
Once the gateway is passed, property settlement runs on the same legislated framework as for married couples — identifying the pool, weighing contributions (financial, non-financial, homemaking and parenting), assessing future circumstances, and checking the result is just and equitable. The June 2025 reforms apply equally to de facto matters, including the economic recognition of family violence and the treatment of pets. Superannuation can be split between de facto partners in Victoria just as in a marriage. There is no discount for never having married.
The two-year limitation period
Married couples count their property deadline from divorce; de facto partners count it from separation: two years to commence proceedings. After that, you need the court's leave, granted only in limited circumstances such as hardship. The date of separation itself can be contested — relationships often end gradually — so keep contemporaneous evidence: messages, a note of the conversation, changed living arrangements. If your two years is approaching and negotiations are drifting, filing protectively preserves your rights while talks continue.
Children of de facto relationships
For parenting, the law does not care at all whether parents married. The framework in our guide to parenting arrangements — best interests, parenting plans, consent orders, mediation before court — applies identically. Child support likewise runs through the same administrative assessment regardless of marital status.
Maintenance between former partners
A former de facto partner who cannot adequately support themselves — because of childcare responsibilities, age or health — can seek maintenance from the other, where the other has capacity to pay. It is the same principle as spousal maintenance in marriage, subject to the same two-year time limit, and often resolved inside the broader property settlement rather than as a standalone fight.
Death without separation: the estate angle
De facto status matters at death too. A surviving de facto partner is treated as a spouse under Victoria's intestacy rules if there is no will, can bring a family provision claim if left without adequate provision, and is a potential recipient of superannuation death benefits. Proof, again, is the battleground — which is one more reason couples register relationships and make wills that name each other plainly.
Common de facto questions, answered
Do we split everything 50/50 after two years? No. Two years is merely the gateway to bringing a claim. The division itself follows the same contributions-and-future-needs assessment as marriage — a two-and-a-half-year relationship with separate finances routinely produces a very modest adjustment, or none.
We never lived together full-time. Can we still be de facto? Possibly. Courts have found de facto relationships across two households where the other indicators — commitment, interdependence, public recognition — were strong. Equally, cohabitation alone does not make flatmates a couple.
Does registering our relationship change anything else? Registration is powerful evidence and removes the two-year gateway argument, and it can matter for immigration and estate purposes. It does not, of itself, change how property would be divided.
What about property in only one name? Title is not destiny. Property held in one partner's name still enters the pool; the questions are contribution and future need, not the name on the deed.
Protecting yourself, whichever side you are on
- Moving in? Consider a binding financial agreement if either of you brings significant assets, a business or children from a previous relationship.
- Keep clarity about big contributions — deposits from parents, renovations funded by one partner. Documents beat memories.
- On separation, diarise the date, take advice early, and do not let the two-year clock expire while you wait for goodwill.
- Update your will, powers of attorney and super nominations at both the start and the end of a de facto relationship.
We act for de facto partners across Melbourne and Victoria in property, maintenance and parenting matters — with written fee estimates before work begins. Start at our family law page or call for a confidential first conversation.
The bottom line
De facto partners in Victoria stand almost exactly where married couples stand — with one sharper deadline and one extra threshold question. Diarise two years from separation, gather your evidence of the relationship early, and formalise any settlement properly. The law has caught up with modern relationships; make sure your paperwork has too.
Unsure whether your relationship qualifies, or racing a two-year deadline? Ask us this week, not next year. Call (03) 9001 4400 or send an enquiry.
This guide reflects the law applying in Victoria as at July 2026. It is general information only, not legal advice, and does not take your circumstances into account.