Separation Under One Roof: A Practical Guide

In Australia, you can be separated even while you and your former partner are still living in the same home. Moving out is not what makes a separation real. What matters is that the relationship has ended and that you are living separate lives, even under one roof.

This arrangement is common. People stay in the same home for sensible reasons: housing is expensive, settling the finances takes time, and many parents want to keep things stable for the children while they work out what comes next. The law recognises all of this. The challenge is that being separated under one roof can be harder to demonstrate than separating by moving apart, so it helps to understand what the courts and Services Australia look for.

This is general information only and not personal legal or financial advice.

What separation means in Australian law

Australia has a no-fault system. When deciding a divorce, the court does not look at why the marriage ended or who was at fault. It looks at whether the relationship has broken down with no reasonable likelihood of getting back together.

The Family Law Act 1975 makes clear that a couple can be separated even though they are still living in the same residence, and that a separation can be brought about by the action or conduct of just one of the parties. In other words, you can be separated even if only one of you decided the relationship was over, and even if you have not moved into different homes.

Separation is about more than being unhappy or going through a rough patch. It usually involves one of you communicating that the relationship is over, and then both of you behaving as separated people from that point, both inside and outside the home.

Why the date of separation matters

The date you separated can carry real weight, so it is worth being clear about it.

For divorce, you generally need to have been separated for at least 12 months before you apply. You can be separated under one roof for some or all of that time and still meet this requirement.

The date of separation also affects the time limits for sorting out your property and finances. For married couples, an application to the court for a property settlement generally must be made within 12 months of the divorce becoming final. For former de facto couples, the application generally must be made within 2 years of the relationship ending. A de facto couple usually needs to have been together for at least 2 years, or have a child together, before a property claim can be made, although there are some exceptions.

A common misunderstanding is that the asset pool is simply frozen at the date of separation. In practice the courts look at the assets, liabilities and financial resources of both people as they are at the time of the settlement or hearing, not only as they were on the day you separated. The separation date is relevant to the broader picture, but assets acquired or debts incurred after separation are not automatically left out. How they are treated depends on the circumstances. This is one of several areas where independent legal advice is valuable.

How to prove you separated under one roof

If you apply for a divorce and you and your spouse lived at the same address for some or all of the 12 months before applying, the court needs extra evidence. You will need to file two affidavits with your divorce application:

• One from you (the applicant), and
• One from an independent witness, such as a friend, family member, neighbour or co-worker who has known you during the marriage and after the separation. For a sole application this is usually someone other than your spouse. For a joint application, the second affidavit can come from your spouse.

Your affidavit should explain the facts that show you separated on the date claimed, why you continued to share a home after the relationship ended, and what your plans are for your living arrangements. It helps to address how things changed after separation across areas such as sleeping arrangements, finances, household tasks, and your social lives.

The independent witness must set out their relationship to each of you and give evidence based on what they have actually seen, not just what you have told them. They should explain the circumstances that let them observe your situation.

The court is looking for a genuine change. Separation under one roof is not just about sleeping in separate bedrooms. The court wants to see that, from the date of separation, you stopped acting like a couple and behaved as separated people both inside and outside the home.

One practical point to plan for: if you are still living at the same address when you apply, you need to explain your future living arrangements. If you both intend to keep living together in the same home indefinitely, the court may not be satisfied that you have separated, and may not grant the divorce.

A note on reconciliation

If you get back together during the 12 month separation period and the reconciliation lasts longer than 3 months, the 12 month clock starts again. A short attempt to reconcile that lasts less than 3 months does not reset the clock, though it can affect how the period is counted, so it is worth getting advice if this applies to you.

Marriages shorter than two years

There used to be an extra step for couples married less than two years, who had to attend counselling or file an affidavit explaining why they had not. From 10 June 2025, following changes to the Family Law Act, this counselling certificate requirement was removed. Couples married less than two years no longer need to provide one when applying for divorce.

Centrelink and your payments

Separation under one roof also matters for government payments. Services Australia can pay you as a single person rather than as a member of a couple if you are genuinely separated, even while sharing a home.

To be assessed, you complete the Relationship details, Separated under one roof form (SS293). Usually both you and your former partner each complete a form, although if completing it would put you at risk, your former partner does not have to. Services Australia looks at similar things to the court, including your financial arrangements, how the household runs, care of any children, your social lives, and whether the relationship has genuinely ended with no intention to reconcile. Getting this right can affect payments such as Family Tax Benefit and Parenting Payment, so it is worth notifying them promptly and keeping your own records.

Where family violence fits in

From 10 June 2025, the law about how property settlements are decided changed. The court now follows a clearer set of steps and must consider the economic effect of family violence where it is relevant, both when assessing contributions and when assessing future needs. Financial abuse, such as controlling access to money or building up debt in a partner's name, can be part of this. If family violence or financial abuse is part of your situation, your safety comes first. Speak to a lawyer or a specialist support service about your options.

Making it official

Separating, even under one roof, is the start of the process rather than the end. To give your financial arrangements legal certainty, settlements are usually formalised either through consent orders approved by the court or a binding financial agreement. Both have specific requirements, and a binding financial agreement generally requires each person to receive independent legal advice. Formalising your settlement properly helps avoid disputes later, including about when separation occurred.

How Separately can help

Separately gives you a clear, private assessment of your property settlement situation so you can understand where you stand before making decisions. It is a calm starting point for getting organised, and it sits alongside, not instead of, advice from a family lawyer. For any formal settlement, independent legal advice remains essential.

Separation under one roof is more common than many people realise, and it is entirely valid in Australian law. Understanding what the courts and Services Australia look for can make the path ahead feel a little clearer.