De facto relationship
& separated?

You didn't get married. Maybe that felt like the safer choice. Maybe it was never a priority. Maybe you assumed that keeping things informal meant keeping things simple. Now you're separated, there are kids involved, and suddenly you're trying to work out whether any of this actually applies to you.

It does. Almost all of it.

What Counts as a De Facto Relationship?

Under the Family Law Act 1975 (Cth), a de facto relationship is a relationship between two adults who live together on a genuine domestic basis — but who are not married to each other. That's it. No registration required. No ceremony. No formal document.

The law looks at the whole picture to decide whether a de facto relationship existed: how long you lived together, whether you had children together, how your finances were arranged, how you presented yourselves publicly as a couple. Two years of cohabitation is typically the threshold — but if you have children together, the two-year rule may not apply at all.

The practical point: if you lived together as a couple and have children together, the full weight of Australian family law applies to your separation. The fact that you weren't married changes very little.

Your Parenting Rights Are Identical — Marriage Has Nothing to Do With It

Let's deal with the most important thing first.

Your parenting rights do not depend on whether you were married. The Family Law Act applies equally to married and de facto couples. What matters is that you are the child's parent — and the law recognises that a child benefits from a meaningful relationship with both parents, regardless of the nature of the parents' relationship.

Parenting arrangements — who the child lives with, how much time they spend with each parent, how decisions get made — are determined entirely by what is in the best interests of the child. Your marital status is irrelevant to that question.

If you are being denied time with your children, you have the same legal standing to apply for parenting orders as any married father would. Do not let anyone tell you otherwise. The Federal Circuit and Family Court of Australia treats de facto fathers the same as married fathers when it comes to parenting — full stop.

Property Settlement: The Same Rules Apply

Since 2009, de facto couples in NSW and the ACT have had access to the same property settlement framework under the Family Law Act as married couples. This is a significant point that many fathers don't know.

The four-step process the court uses to divide property is identical — and it's explained in detail in our guide to property settlement after separation:

1. Identify and value the asset pool — everything you own together and separately: real estate, superannuation, vehicles, savings, debt.
2. Assess contributions — financial contributions (income, inheritance, what you brought in) and non-financial contributions (raising children, maintaining the home).
3. Consider future needs — income-earning capacity, age, health, who the children will primarily live with.
4. Determine what is just and equitable — the court's final step, where everything is weighed together.

Superannuation is included in this process and can be split. The family home is included. Business interests are included. There is no clean divide between "yours" and "hers" simply because you weren't married.

The 2-Year Deadline You Cannot Afford to Miss

Here is where de facto separation differs from divorce — and where fathers regularly get caught out.

For married couples, the deadline to apply for property settlement orders is 12 months after the divorce order becomes final. If you've also gone through a formal divorce, our NSW divorce guide explains that timeline in full.

For de facto couples, the deadline is 2 years from the date of separation.

Two years sounds generous. It isn't — because the date of separation can itself be disputed, and because those years are often consumed by parenting disputes, housing changes, work pressures, and the general wreckage of a broken relationship. Fathers look up and the window has closed.

If you apply outside the two-year window, you need the court's permission to proceed. The Federal Circuit and Family Court does not grant that permission lightly. Getting it can be costly and difficult.

Know your separation date. Write it down. Start the clock now.

Establishing When You Separated

Separation in a de facto relationship can be harder to pin down than in a marriage. There is no divorce application to mark the date. Often the end came gradually — things broke down over months, one of you moved out, moved back, moved out again.

If there is a dispute about when the relationship ended, the court will look at:

• When you stopped living together (or started living separately under one roof)
• When you told family and friends the relationship was over
• When you stopped presenting as a couple socially
• When finances separated
• Any written evidence — texts, emails, documents

If you separated under one roof — still living in the same house but no longer in a relationship — you can still be legally separated. You will need to demonstrate the relationship was genuinely over: separate bedrooms, separate social lives, separate finances. Document everything. If you have evidence of when the relationship ended, keep it.

Child Support — Same Rules, No Exceptions

Child support is assessed by Services Australia using a formula that applies regardless of whether the parents were married or in a de facto relationship. The assessment considers both parents' incomes and the amount of time the child spends with each parent.

Shared care — where the child spends substantial time with both parents — directly affects the amount of child support payable. The more time your child spends with you, the lower your assessed liability. Our guide to child support for fathers walks through how the formula works in practice.

If you think your assessment is wrong — because the other parent has under-declared income, because your care arrangement has changed, or because your circumstances have shifted significantly — you can apply for a change of assessment. An unfair assessment left unchallenged will run for years.

What to Do Right Now

Don't agree to informal arrangements about property. Verbal agreements are not enforceable. If you reach an agreement about the house, superannuation, or any other asset, get it formalised through consent orders or a Binding Financial Agreement (BFA). Without that, the agreement means nothing legally.

Don't delay on parenting arrangements. Informal arrangements established early in separation have a way of becoming the baseline. If your child is spending limited time with you now, that pattern is already forming. Read our guide on what to do if you're being kept from your children — then get parenting orders in place.

Get advice before you sign anything. In the months after separation, you may be asked to sign documents, transfer assets, or agree to financial arrangements that seem reasonable in the moment but aren't. Before you sign, talk to a lawyer. Legal Aid NSW offers a free advice line if cost is a barrier right now.

Note your separation date. The 2-year window for property orders starts from this date.

Common Mistakes De Facto Fathers Make

• Assuming they have fewer rights because they weren't married. Wrong. Fathers' rights in Australia apply equally in de facto relationships. The system treats you the same as a married father.
• Waiting too long on property. The 2-year window closes. Don't assume that because things seem settled informally, they are settled legally.
• Not formalising parenting arrangements. A parenting plan is an agreement — not a court order and not legally enforceable. Consent orders, approved by the court, are enforceable. That's the difference that matters when things break down.
• Letting her set the arrangements by default. If your child starts living primarily with their mother because that's how it happened — not because you agreed to it — that default can be hard to shift later. Act early.
• Leaving superannuation out of the asset pool. The Australian Institute of Family Studies notes superannuation is one of the most commonly overlooked assets in property settlements. It is included in de facto property settlements. Don't give it away through inaction.

This guide is general information only and does not constitute legal advice. For advice about your specific situation, speak with a qualified family lawyer.